Chris Lattner | 566b6ce | 2007-08-24 02:22:53 +0000 | [diff] [blame] | 1 | //===--- CGExprComplex.cpp - Emit LLVM Code for Complex Exprs -------------===// |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 0bc735f | 2007-12-29 19:59:25 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This contains code to emit Expr nodes with complex types as LLVM code. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "CodeGenFunction.h" |
| 15 | #include "CodeGenModule.h" |
Daniel Dunbar | de7fb84 | 2008-08-11 05:00:27 +0000 | [diff] [blame] | 16 | #include "clang/AST/ASTContext.h" |
| 17 | #include "clang/AST/StmtVisitor.h" |
Chandler Carruth | 55fc873 | 2012-12-04 09:13:33 +0000 | [diff] [blame] | 18 | #include "llvm/ADT/SmallString.h" |
Chandler Carruth | 3b844ba | 2013-01-02 11:45:17 +0000 | [diff] [blame] | 19 | #include "llvm/IR/Constants.h" |
| 20 | #include "llvm/IR/Function.h" |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 21 | #include <algorithm> |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 22 | using namespace clang; |
| 23 | using namespace CodeGen; |
| 24 | |
| 25 | //===----------------------------------------------------------------------===// |
Chris Lattner | 05ba49c | 2007-08-21 05:54:53 +0000 | [diff] [blame] | 26 | // Complex Expression Emitter |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 27 | //===----------------------------------------------------------------------===// |
| 28 | |
Chris Lattner | 58dee10 | 2007-08-21 16:57:55 +0000 | [diff] [blame] | 29 | typedef CodeGenFunction::ComplexPairTy ComplexPairTy; |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 30 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 31 | /// Return the complex type that we are meant to emit. |
| 32 | static const ComplexType *getComplexType(QualType type) { |
| 33 | type = type.getCanonicalType(); |
| 34 | if (const ComplexType *comp = dyn_cast<ComplexType>(type)) { |
| 35 | return comp; |
| 36 | } else { |
| 37 | return cast<ComplexType>(cast<AtomicType>(type)->getValueType()); |
| 38 | } |
| 39 | } |
| 40 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 41 | namespace { |
Benjamin Kramer | 85b4521 | 2009-11-28 19:45:26 +0000 | [diff] [blame] | 42 | class ComplexExprEmitter |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 43 | : public StmtVisitor<ComplexExprEmitter, ComplexPairTy> { |
| 44 | CodeGenFunction &CGF; |
Daniel Dunbar | 45d196b | 2008-11-01 01:53:16 +0000 | [diff] [blame] | 45 | CGBuilderTy &Builder; |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 46 | bool IgnoreReal; |
| 47 | bool IgnoreImag; |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 48 | public: |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 49 | ComplexExprEmitter(CodeGenFunction &cgf, bool ir=false, bool ii=false) |
| 50 | : CGF(cgf), Builder(CGF.Builder), IgnoreReal(ir), IgnoreImag(ii) { |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 51 | } |
| 52 | |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 53 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 54 | //===--------------------------------------------------------------------===// |
| 55 | // Utilities |
| 56 | //===--------------------------------------------------------------------===// |
| 57 | |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 58 | bool TestAndClearIgnoreReal() { |
| 59 | bool I = IgnoreReal; |
| 60 | IgnoreReal = false; |
| 61 | return I; |
| 62 | } |
| 63 | bool TestAndClearIgnoreImag() { |
| 64 | bool I = IgnoreImag; |
| 65 | IgnoreImag = false; |
| 66 | return I; |
| 67 | } |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 68 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 69 | /// EmitLoadOfLValue - Given an expression with complex type that represents a |
| 70 | /// value l-value, this method emits the address of the l-value, then loads |
| 71 | /// and returns the result. |
Chris Lattner | 46d7d9f | 2007-08-21 17:28:34 +0000 | [diff] [blame] | 72 | ComplexPairTy EmitLoadOfLValue(const Expr *E) { |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 73 | return EmitLoadOfLValue(CGF.EmitLValue(E), E->getExprLoc()); |
John McCall | 0e800c9 | 2010-12-04 08:14:53 +0000 | [diff] [blame] | 74 | } |
| 75 | |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 76 | ComplexPairTy EmitLoadOfLValue(LValue LV, SourceLocation Loc); |
John McCall | 0e800c9 | 2010-12-04 08:14:53 +0000 | [diff] [blame] | 77 | |
Chris Lattner | 46d7d9f | 2007-08-21 17:28:34 +0000 | [diff] [blame] | 78 | /// EmitStoreOfComplex - Store the specified real/imag parts into the |
| 79 | /// specified value pointer. |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 80 | void EmitStoreOfComplex(ComplexPairTy Val, LValue LV, bool isInit); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 81 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 82 | /// EmitComplexToComplexCast - Emit a cast from complex value Val to DestType. |
| 83 | ComplexPairTy EmitComplexToComplexCast(ComplexPairTy Val, QualType SrcType, |
| 84 | QualType DestType); |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 85 | /// EmitComplexToComplexCast - Emit a cast from scalar value Val to DestType. |
| 86 | ComplexPairTy EmitScalarToComplexCast(llvm::Value *Val, QualType SrcType, |
| 87 | QualType DestType); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 88 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 89 | //===--------------------------------------------------------------------===// |
| 90 | // Visitor Methods |
| 91 | //===--------------------------------------------------------------------===// |
Chris Lattner | 776c649 | 2007-08-21 18:51:13 +0000 | [diff] [blame] | 92 | |
Fariborz Jahanian | aa3b57e | 2010-09-20 23:50:22 +0000 | [diff] [blame] | 93 | ComplexPairTy Visit(Expr *E) { |
John McCall | cf0b2d8 | 2011-02-17 19:02:56 +0000 | [diff] [blame] | 94 | return StmtVisitor<ComplexExprEmitter, ComplexPairTy>::Visit(E); |
Fariborz Jahanian | aa3b57e | 2010-09-20 23:50:22 +0000 | [diff] [blame] | 95 | } |
| 96 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 97 | ComplexPairTy VisitStmt(Stmt *S) { |
Ted Kremenek | 7a9d49f | 2007-12-11 21:27:55 +0000 | [diff] [blame] | 98 | S->dump(CGF.getContext().getSourceManager()); |
David Blaikie | b219cfc | 2011-09-23 05:06:16 +0000 | [diff] [blame] | 99 | llvm_unreachable("Stmt can't have complex result type!"); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 100 | } |
Chris Lattner | 776c649 | 2007-08-21 18:51:13 +0000 | [diff] [blame] | 101 | ComplexPairTy VisitExpr(Expr *S); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 102 | ComplexPairTy VisitParenExpr(ParenExpr *PE) { return Visit(PE->getSubExpr());} |
Peter Collingbourne | f111d93 | 2011-04-15 00:35:48 +0000 | [diff] [blame] | 103 | ComplexPairTy VisitGenericSelectionExpr(GenericSelectionExpr *GE) { |
| 104 | return Visit(GE->getResultExpr()); |
| 105 | } |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 106 | ComplexPairTy VisitImaginaryLiteral(const ImaginaryLiteral *IL); |
John McCall | 91a5755 | 2011-07-15 05:09:51 +0000 | [diff] [blame] | 107 | ComplexPairTy |
| 108 | VisitSubstNonTypeTemplateParmExpr(SubstNonTypeTemplateParmExpr *PE) { |
| 109 | return Visit(PE->getReplacement()); |
| 110 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 111 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 112 | // l-values. |
John McCall | f4b88a4 | 2012-03-10 09:33:50 +0000 | [diff] [blame] | 113 | ComplexPairTy VisitDeclRefExpr(DeclRefExpr *E) { |
| 114 | if (CodeGenFunction::ConstantEmission result = CGF.tryEmitAsConstant(E)) { |
John McCall | dd2ecee | 2012-03-10 03:05:10 +0000 | [diff] [blame] | 115 | if (result.isReference()) |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 116 | return EmitLoadOfLValue(result.getReferenceLValue(CGF, E), |
| 117 | E->getExprLoc()); |
John McCall | dd2ecee | 2012-03-10 03:05:10 +0000 | [diff] [blame] | 118 | |
Eli Friedman | be6d913 | 2013-07-16 20:19:04 +0000 | [diff] [blame] | 119 | llvm::Constant *pair = result.getValue(); |
| 120 | return ComplexPairTy(pair->getAggregateElement(0U), |
| 121 | pair->getAggregateElement(1U)); |
John McCall | dd2ecee | 2012-03-10 03:05:10 +0000 | [diff] [blame] | 122 | } |
John McCall | f4b88a4 | 2012-03-10 09:33:50 +0000 | [diff] [blame] | 123 | return EmitLoadOfLValue(E); |
John McCall | dd2ecee | 2012-03-10 03:05:10 +0000 | [diff] [blame] | 124 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 125 | ComplexPairTy VisitObjCIvarRefExpr(ObjCIvarRefExpr *E) { |
Daniel Dunbar | 42f963d | 2009-06-10 04:38:50 +0000 | [diff] [blame] | 126 | return EmitLoadOfLValue(E); |
| 127 | } |
Daniel Dunbar | 42f963d | 2009-06-10 04:38:50 +0000 | [diff] [blame] | 128 | ComplexPairTy VisitObjCMessageExpr(ObjCMessageExpr *E) { |
| 129 | return CGF.EmitObjCMessageExpr(E).getComplexVal(); |
| 130 | } |
Chris Lattner | 8bcd723 | 2007-08-21 18:03:58 +0000 | [diff] [blame] | 131 | ComplexPairTy VisitArraySubscriptExpr(Expr *E) { return EmitLoadOfLValue(E); } |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 132 | ComplexPairTy VisitMemberExpr(const Expr *E) { return EmitLoadOfLValue(E); } |
John McCall | e996ffd | 2011-02-16 08:02:54 +0000 | [diff] [blame] | 133 | ComplexPairTy VisitOpaqueValueExpr(OpaqueValueExpr *E) { |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 134 | if (E->isGLValue()) |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 135 | return EmitLoadOfLValue(CGF.getOpaqueLValueMapping(E), E->getExprLoc()); |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 136 | return CGF.getOpaqueRValueMapping(E).getComplexVal(); |
John McCall | e996ffd | 2011-02-16 08:02:54 +0000 | [diff] [blame] | 137 | } |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 138 | |
John McCall | 4b9c2d2 | 2011-11-06 09:01:30 +0000 | [diff] [blame] | 139 | ComplexPairTy VisitPseudoObjectExpr(PseudoObjectExpr *E) { |
| 140 | return CGF.EmitPseudoObjectRValue(E).getComplexVal(); |
| 141 | } |
| 142 | |
Chris Lattner | e73e8e2 | 2007-08-21 22:33:41 +0000 | [diff] [blame] | 143 | // FIXME: CompoundLiteralExpr |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 144 | |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 145 | ComplexPairTy EmitCast(CastExpr::CastKind CK, Expr *Op, QualType DestTy); |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 146 | ComplexPairTy VisitImplicitCastExpr(ImplicitCastExpr *E) { |
| 147 | // Unlike for scalars, we don't have to worry about function->ptr demotion |
| 148 | // here. |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 149 | return EmitCast(E->getCastKind(), E->getSubExpr(), E->getType()); |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 150 | } |
| 151 | ComplexPairTy VisitCastExpr(CastExpr *E) { |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 152 | return EmitCast(E->getCastKind(), E->getSubExpr(), E->getType()); |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 153 | } |
Chris Lattner | 419d25e | 2007-08-23 21:38:16 +0000 | [diff] [blame] | 154 | ComplexPairTy VisitCallExpr(const CallExpr *E); |
Chris Lattner | 7e20d09 | 2007-08-31 22:51:38 +0000 | [diff] [blame] | 155 | ComplexPairTy VisitStmtExpr(const StmtExpr *E); |
| 156 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 157 | // Operators. |
Chris Lattner | 3070f98 | 2007-08-21 22:25:29 +0000 | [diff] [blame] | 158 | ComplexPairTy VisitPrePostIncDec(const UnaryOperator *E, |
Chris Lattner | dd36d32 | 2010-01-09 21:40:03 +0000 | [diff] [blame] | 159 | bool isInc, bool isPre) { |
| 160 | LValue LV = CGF.EmitLValue(E->getSubExpr()); |
| 161 | return CGF.EmitComplexPrePostIncDec(E, LV, isInc, isPre); |
| 162 | } |
Chris Lattner | 3070f98 | 2007-08-21 22:25:29 +0000 | [diff] [blame] | 163 | ComplexPairTy VisitUnaryPostDec(const UnaryOperator *E) { |
| 164 | return VisitPrePostIncDec(E, false, false); |
| 165 | } |
| 166 | ComplexPairTy VisitUnaryPostInc(const UnaryOperator *E) { |
| 167 | return VisitPrePostIncDec(E, true, false); |
| 168 | } |
| 169 | ComplexPairTy VisitUnaryPreDec(const UnaryOperator *E) { |
| 170 | return VisitPrePostIncDec(E, false, true); |
| 171 | } |
| 172 | ComplexPairTy VisitUnaryPreInc(const UnaryOperator *E) { |
| 173 | return VisitPrePostIncDec(E, true, true); |
| 174 | } |
| 175 | ComplexPairTy VisitUnaryDeref(const Expr *E) { return EmitLoadOfLValue(E); } |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 176 | ComplexPairTy VisitUnaryPlus (const UnaryOperator *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 177 | TestAndClearIgnoreReal(); |
| 178 | TestAndClearIgnoreImag(); |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 179 | return Visit(E->getSubExpr()); |
| 180 | } |
| 181 | ComplexPairTy VisitUnaryMinus (const UnaryOperator *E); |
Chris Lattner | e98a11c | 2007-08-21 20:41:44 +0000 | [diff] [blame] | 182 | ComplexPairTy VisitUnaryNot (const UnaryOperator *E); |
Sebastian Redl | 0518999 | 2008-11-11 17:56:53 +0000 | [diff] [blame] | 183 | // LNot,Real,Imag never return complex. |
Chris Lattner | e98a11c | 2007-08-21 20:41:44 +0000 | [diff] [blame] | 184 | ComplexPairTy VisitUnaryExtension(const UnaryOperator *E) { |
| 185 | return Visit(E->getSubExpr()); |
| 186 | } |
Chris Lattner | 0442108 | 2008-04-08 04:40:51 +0000 | [diff] [blame] | 187 | ComplexPairTy VisitCXXDefaultArgExpr(CXXDefaultArgExpr *DAE) { |
| 188 | return Visit(DAE->getExpr()); |
| 189 | } |
Richard Smith | c3bf52c | 2013-04-20 22:23:05 +0000 | [diff] [blame] | 190 | ComplexPairTy VisitCXXDefaultInitExpr(CXXDefaultInitExpr *DIE) { |
| 191 | CodeGenFunction::CXXDefaultInitExprScope Scope(CGF); |
| 192 | return Visit(DIE->getExpr()); |
| 193 | } |
John McCall | 4765fa0 | 2010-12-06 08:20:24 +0000 | [diff] [blame] | 194 | ComplexPairTy VisitExprWithCleanups(ExprWithCleanups *E) { |
John McCall | 1a343eb | 2011-11-10 08:15:53 +0000 | [diff] [blame] | 195 | CGF.enterFullExpression(E); |
| 196 | CodeGenFunction::RunCleanupsScope Scope(CGF); |
| 197 | return Visit(E->getSubExpr()); |
Anders Carlsson | 4b76b4f | 2009-05-31 00:12:05 +0000 | [diff] [blame] | 198 | } |
Douglas Gregor | ed8abf1 | 2010-07-08 06:14:04 +0000 | [diff] [blame] | 199 | ComplexPairTy VisitCXXScalarValueInitExpr(CXXScalarValueInitExpr *E) { |
Argyrios Kyrtzidis | 7267f78 | 2008-08-23 19:35:47 +0000 | [diff] [blame] | 200 | assert(E->getType()->isAnyComplexType() && "Expected complex type!"); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 201 | QualType Elem = E->getType()->castAs<ComplexType>()->getElementType(); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 202 | llvm::Constant *Null = llvm::Constant::getNullValue(CGF.ConvertType(Elem)); |
Argyrios Kyrtzidis | 7267f78 | 2008-08-23 19:35:47 +0000 | [diff] [blame] | 203 | return ComplexPairTy(Null, Null); |
| 204 | } |
Douglas Gregor | 3498bdb | 2009-01-29 17:44:32 +0000 | [diff] [blame] | 205 | ComplexPairTy VisitImplicitValueInitExpr(ImplicitValueInitExpr *E) { |
| 206 | assert(E->getType()->isAnyComplexType() && "Expected complex type!"); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 207 | QualType Elem = E->getType()->castAs<ComplexType>()->getElementType(); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 208 | llvm::Constant *Null = |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 209 | llvm::Constant::getNullValue(CGF.ConvertType(Elem)); |
Douglas Gregor | 3498bdb | 2009-01-29 17:44:32 +0000 | [diff] [blame] | 210 | return ComplexPairTy(Null, Null); |
| 211 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 212 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 213 | struct BinOpInfo { |
| 214 | ComplexPairTy LHS; |
| 215 | ComplexPairTy RHS; |
| 216 | QualType Ty; // Computation Type. |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 217 | }; |
| 218 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 219 | BinOpInfo EmitBinOps(const BinaryOperator *E); |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 220 | LValue EmitCompoundAssignLValue(const CompoundAssignOperator *E, |
| 221 | ComplexPairTy (ComplexExprEmitter::*Func) |
| 222 | (const BinOpInfo &), |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 223 | RValue &Val); |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 224 | ComplexPairTy EmitCompoundAssign(const CompoundAssignOperator *E, |
| 225 | ComplexPairTy (ComplexExprEmitter::*Func) |
| 226 | (const BinOpInfo &)); |
| 227 | |
| 228 | ComplexPairTy EmitBinAdd(const BinOpInfo &Op); |
| 229 | ComplexPairTy EmitBinSub(const BinOpInfo &Op); |
| 230 | ComplexPairTy EmitBinMul(const BinOpInfo &Op); |
| 231 | ComplexPairTy EmitBinDiv(const BinOpInfo &Op); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 232 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 233 | ComplexPairTy VisitBinAdd(const BinaryOperator *E) { |
| 234 | return EmitBinAdd(EmitBinOps(E)); |
| 235 | } |
| 236 | ComplexPairTy VisitBinSub(const BinaryOperator *E) { |
| 237 | return EmitBinSub(EmitBinOps(E)); |
| 238 | } |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 239 | ComplexPairTy VisitBinMul(const BinaryOperator *E) { |
| 240 | return EmitBinMul(EmitBinOps(E)); |
| 241 | } |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 242 | ComplexPairTy VisitBinDiv(const BinaryOperator *E) { |
| 243 | return EmitBinDiv(EmitBinOps(E)); |
| 244 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 245 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 246 | // Compound assignments. |
| 247 | ComplexPairTy VisitBinAddAssign(const CompoundAssignOperator *E) { |
| 248 | return EmitCompoundAssign(E, &ComplexExprEmitter::EmitBinAdd); |
| 249 | } |
| 250 | ComplexPairTy VisitBinSubAssign(const CompoundAssignOperator *E) { |
| 251 | return EmitCompoundAssign(E, &ComplexExprEmitter::EmitBinSub); |
| 252 | } |
| 253 | ComplexPairTy VisitBinMulAssign(const CompoundAssignOperator *E) { |
| 254 | return EmitCompoundAssign(E, &ComplexExprEmitter::EmitBinMul); |
| 255 | } |
| 256 | ComplexPairTy VisitBinDivAssign(const CompoundAssignOperator *E) { |
| 257 | return EmitCompoundAssign(E, &ComplexExprEmitter::EmitBinDiv); |
| 258 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 259 | |
Chris Lattner | 612c40c | 2007-08-26 21:27:07 +0000 | [diff] [blame] | 260 | // GCC rejects rem/and/or/xor for integer complex. |
Chris Lattner | 4034edb | 2007-08-21 17:12:50 +0000 | [diff] [blame] | 261 | // Logical and/or always return int, never complex. |
Chris Lattner | 58dee10 | 2007-08-21 16:57:55 +0000 | [diff] [blame] | 262 | |
| 263 | // No comparisons produce a complex result. |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 264 | |
| 265 | LValue EmitBinAssignLValue(const BinaryOperator *E, |
| 266 | ComplexPairTy &Val); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 267 | ComplexPairTy VisitBinAssign (const BinaryOperator *E); |
Chris Lattner | 756a4d8 | 2007-08-21 17:15:50 +0000 | [diff] [blame] | 268 | ComplexPairTy VisitBinComma (const BinaryOperator *E); |
| 269 | |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 270 | |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 271 | ComplexPairTy |
| 272 | VisitAbstractConditionalOperator(const AbstractConditionalOperator *CO); |
Chris Lattner | d0b1203 | 2007-08-24 02:18:47 +0000 | [diff] [blame] | 273 | ComplexPairTy VisitChooseExpr(ChooseExpr *CE); |
Eli Friedman | c4777f1 | 2008-05-13 23:11:35 +0000 | [diff] [blame] | 274 | |
| 275 | ComplexPairTy VisitInitListExpr(InitListExpr *E); |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 276 | |
Eli Friedman | fce4715 | 2012-02-27 20:26:13 +0000 | [diff] [blame] | 277 | ComplexPairTy VisitCompoundLiteralExpr(CompoundLiteralExpr *E) { |
| 278 | return EmitLoadOfLValue(E); |
| 279 | } |
| 280 | |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 281 | ComplexPairTy VisitVAArgExpr(VAArgExpr *E); |
Eli Friedman | 276b061 | 2011-10-11 02:20:01 +0000 | [diff] [blame] | 282 | |
| 283 | ComplexPairTy VisitAtomicExpr(AtomicExpr *E) { |
| 284 | return CGF.EmitAtomicExpr(E).getComplexVal(); |
| 285 | } |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 286 | }; |
| 287 | } // end anonymous namespace. |
| 288 | |
| 289 | //===----------------------------------------------------------------------===// |
| 290 | // Utilities |
| 291 | //===----------------------------------------------------------------------===// |
| 292 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 293 | /// EmitLoadOfLValue - Given an RValue reference for a complex, emit code to |
Chris Lattner | 46d7d9f | 2007-08-21 17:28:34 +0000 | [diff] [blame] | 294 | /// load the real and imaginary pieces, returning them as Real/Imag. |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 295 | ComplexPairTy ComplexExprEmitter::EmitLoadOfLValue(LValue lvalue, |
| 296 | SourceLocation loc) { |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 297 | assert(lvalue.isSimple() && "non-simple complex l-value?"); |
John McCall | 9eda3ab | 2013-03-07 21:37:17 +0000 | [diff] [blame] | 298 | if (lvalue.getType()->isAtomicType()) |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 299 | return CGF.EmitAtomicLoad(lvalue, loc).getComplexVal(); |
John McCall | 9eda3ab | 2013-03-07 21:37:17 +0000 | [diff] [blame] | 300 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 301 | llvm::Value *SrcPtr = lvalue.getAddress(); |
| 302 | bool isVolatile = lvalue.isVolatileQualified(); |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 303 | unsigned AlignR = lvalue.getAlignment().getQuantity(); |
| 304 | ASTContext &C = CGF.getContext(); |
| 305 | QualType ComplexTy = lvalue.getType(); |
| 306 | unsigned ComplexAlign = C.getTypeAlignInChars(ComplexTy).getQuantity(); |
| 307 | unsigned AlignI = std::min(AlignR, ComplexAlign); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 308 | |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 309 | llvm::Value *Real=0, *Imag=0; |
Chris Lattner | 6b5d0bf | 2007-08-26 22:47:40 +0000 | [diff] [blame] | 310 | |
John McCall | ff624c1 | 2010-11-14 09:40:28 +0000 | [diff] [blame] | 311 | if (!IgnoreReal || isVolatile) { |
Benjamin Kramer | 56a44f7 | 2009-11-29 19:51:45 +0000 | [diff] [blame] | 312 | llvm::Value *RealP = Builder.CreateStructGEP(SrcPtr, 0, |
| 313 | SrcPtr->getName() + ".realp"); |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 314 | Real = Builder.CreateAlignedLoad(RealP, AlignR, isVolatile, |
| 315 | SrcPtr->getName() + ".real"); |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 316 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 317 | |
John McCall | ff624c1 | 2010-11-14 09:40:28 +0000 | [diff] [blame] | 318 | if (!IgnoreImag || isVolatile) { |
Benjamin Kramer | 56a44f7 | 2009-11-29 19:51:45 +0000 | [diff] [blame] | 319 | llvm::Value *ImagP = Builder.CreateStructGEP(SrcPtr, 1, |
| 320 | SrcPtr->getName() + ".imagp"); |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 321 | Imag = Builder.CreateAlignedLoad(ImagP, AlignI, isVolatile, |
| 322 | SrcPtr->getName() + ".imag"); |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 323 | } |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 324 | return ComplexPairTy(Real, Imag); |
| 325 | } |
| 326 | |
Chris Lattner | 46d7d9f | 2007-08-21 17:28:34 +0000 | [diff] [blame] | 327 | /// EmitStoreOfComplex - Store the specified real/imag parts into the |
| 328 | /// specified value pointer. |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 329 | void ComplexExprEmitter::EmitStoreOfComplex(ComplexPairTy Val, |
| 330 | LValue lvalue, |
| 331 | bool isInit) { |
John McCall | 9eda3ab | 2013-03-07 21:37:17 +0000 | [diff] [blame] | 332 | if (lvalue.getType()->isAtomicType()) |
| 333 | return CGF.EmitAtomicStore(RValue::getComplex(Val), lvalue, isInit); |
| 334 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 335 | llvm::Value *Ptr = lvalue.getAddress(); |
Chris Lattner | 36b6a0a | 2008-03-19 05:19:41 +0000 | [diff] [blame] | 336 | llvm::Value *RealPtr = Builder.CreateStructGEP(Ptr, 0, "real"); |
| 337 | llvm::Value *ImagPtr = Builder.CreateStructGEP(Ptr, 1, "imag"); |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 338 | unsigned AlignR = lvalue.getAlignment().getQuantity(); |
| 339 | ASTContext &C = CGF.getContext(); |
| 340 | QualType ComplexTy = lvalue.getType(); |
| 341 | unsigned ComplexAlign = C.getTypeAlignInChars(ComplexTy).getQuantity(); |
| 342 | unsigned AlignI = std::min(AlignR, ComplexAlign); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 343 | |
JF Bastien | ab96e56 | 2013-07-17 05:57:42 +0000 | [diff] [blame] | 344 | Builder.CreateAlignedStore(Val.first, RealPtr, AlignR, |
| 345 | lvalue.isVolatileQualified()); |
| 346 | Builder.CreateAlignedStore(Val.second, ImagPtr, AlignI, |
| 347 | lvalue.isVolatileQualified()); |
Chris Lattner | 46d7d9f | 2007-08-21 17:28:34 +0000 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | |
| 351 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 352 | //===----------------------------------------------------------------------===// |
| 353 | // Visitor Methods |
| 354 | //===----------------------------------------------------------------------===// |
| 355 | |
Chris Lattner | 776c649 | 2007-08-21 18:51:13 +0000 | [diff] [blame] | 356 | ComplexPairTy ComplexExprEmitter::VisitExpr(Expr *E) { |
Fariborz Jahanian | 776b790 | 2011-09-02 20:03:16 +0000 | [diff] [blame] | 357 | CGF.ErrorUnsupported(E, "complex expression"); |
| 358 | llvm::Type *EltTy = |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 359 | CGF.ConvertType(getComplexType(E->getType())->getElementType()); |
Fariborz Jahanian | 776b790 | 2011-09-02 20:03:16 +0000 | [diff] [blame] | 360 | llvm::Value *U = llvm::UndefValue::get(EltTy); |
| 361 | return ComplexPairTy(U, U); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 362 | } |
| 363 | |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 364 | ComplexPairTy ComplexExprEmitter:: |
| 365 | VisitImaginaryLiteral(const ImaginaryLiteral *IL) { |
Chris Lattner | db68f1b | 2007-08-26 03:51:12 +0000 | [diff] [blame] | 366 | llvm::Value *Imag = CGF.EmitScalarExpr(IL->getSubExpr()); |
John McCall | 8d3d6c9 | 2011-01-13 02:03:06 +0000 | [diff] [blame] | 367 | return ComplexPairTy(llvm::Constant::getNullValue(Imag->getType()), Imag); |
Chris Lattner | db68f1b | 2007-08-26 03:51:12 +0000 | [diff] [blame] | 368 | } |
| 369 | |
| 370 | |
Chris Lattner | 419d25e | 2007-08-23 21:38:16 +0000 | [diff] [blame] | 371 | ComplexPairTy ComplexExprEmitter::VisitCallExpr(const CallExpr *E) { |
Anders Carlsson | e9f2f45 | 2009-05-27 03:37:57 +0000 | [diff] [blame] | 372 | if (E->getCallReturnType()->isReferenceType()) |
| 373 | return EmitLoadOfLValue(E); |
| 374 | |
Chris Lattner | 9b65551 | 2007-08-31 22:49:20 +0000 | [diff] [blame] | 375 | return CGF.EmitCallExpr(E).getComplexVal(); |
Chris Lattner | 419d25e | 2007-08-23 21:38:16 +0000 | [diff] [blame] | 376 | } |
| 377 | |
Chris Lattner | 7e20d09 | 2007-08-31 22:51:38 +0000 | [diff] [blame] | 378 | ComplexPairTy ComplexExprEmitter::VisitStmtExpr(const StmtExpr *E) { |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 379 | CodeGenFunction::StmtExprEvaluation eval(CGF); |
Eli Friedman | 2ac2fa7 | 2013-06-10 22:04:49 +0000 | [diff] [blame] | 380 | llvm::Value *RetAlloca = CGF.EmitCompoundStmt(*E->getSubStmt(), true); |
| 381 | assert(RetAlloca && "Expected complex return value"); |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 382 | return EmitLoadOfLValue(CGF.MakeAddrLValue(RetAlloca, E->getType()), |
| 383 | E->getExprLoc()); |
Chris Lattner | 7e20d09 | 2007-08-31 22:51:38 +0000 | [diff] [blame] | 384 | } |
| 385 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 386 | /// EmitComplexToComplexCast - Emit a cast from complex value Val to DestType. |
| 387 | ComplexPairTy ComplexExprEmitter::EmitComplexToComplexCast(ComplexPairTy Val, |
| 388 | QualType SrcType, |
| 389 | QualType DestType) { |
| 390 | // Get the src/dest element type. |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 391 | SrcType = SrcType->castAs<ComplexType>()->getElementType(); |
| 392 | DestType = DestType->castAs<ComplexType>()->getElementType(); |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 393 | |
Daniel Dunbar | 56f0d16 | 2009-01-29 06:44:03 +0000 | [diff] [blame] | 394 | // C99 6.3.1.6: When a value of complex type is converted to another |
Daniel Dunbar | e12d8e3 | 2009-01-26 18:02:34 +0000 | [diff] [blame] | 395 | // complex type, both the real and imaginary parts follow the conversion |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 396 | // rules for the corresponding real types. |
| 397 | Val.first = CGF.EmitScalarConversion(Val.first, SrcType, DestType); |
| 398 | Val.second = CGF.EmitScalarConversion(Val.second, SrcType, DestType); |
| 399 | return Val; |
| 400 | } |
| 401 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 402 | ComplexPairTy ComplexExprEmitter::EmitScalarToComplexCast(llvm::Value *Val, |
| 403 | QualType SrcType, |
| 404 | QualType DestType) { |
| 405 | // Convert the input element to the element type of the complex. |
| 406 | DestType = DestType->castAs<ComplexType>()->getElementType(); |
| 407 | Val = CGF.EmitScalarConversion(Val, SrcType, DestType); |
| 408 | |
| 409 | // Return (realval, 0). |
| 410 | return ComplexPairTy(Val, llvm::Constant::getNullValue(Val->getType())); |
| 411 | } |
| 412 | |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 413 | ComplexPairTy ComplexExprEmitter::EmitCast(CastExpr::CastKind CK, Expr *Op, |
| 414 | QualType DestTy) { |
John McCall | f6a1648 | 2010-12-04 03:47:34 +0000 | [diff] [blame] | 415 | switch (CK) { |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 416 | case CK_Dependent: llvm_unreachable("dependent cast kind in IR gen!"); |
John McCall | f6a1648 | 2010-12-04 03:47:34 +0000 | [diff] [blame] | 417 | |
David Chisnall | 7a7ee30 | 2012-01-16 17:27:18 +0000 | [diff] [blame] | 418 | // Atomic to non-atomic casts may be more than a no-op for some platforms and |
| 419 | // for some types. |
| 420 | case CK_AtomicToNonAtomic: |
| 421 | case CK_NonAtomicToAtomic: |
John McCall | f6a1648 | 2010-12-04 03:47:34 +0000 | [diff] [blame] | 422 | case CK_NoOp: |
| 423 | case CK_LValueToRValue: |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 424 | case CK_UserDefinedConversion: |
John McCall | f6a1648 | 2010-12-04 03:47:34 +0000 | [diff] [blame] | 425 | return Visit(Op); |
| 426 | |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 427 | case CK_LValueBitCast: { |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 428 | LValue origLV = CGF.EmitLValue(Op); |
| 429 | llvm::Value *V = origLV.getAddress(); |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 430 | V = Builder.CreateBitCast(V, |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 431 | CGF.ConvertType(CGF.getContext().getPointerType(DestTy))); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 432 | return EmitLoadOfLValue(CGF.MakeAddrLValue(V, DestTy, |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 433 | origLV.getAlignment()), |
| 434 | Op->getExprLoc()); |
Douglas Gregor | 77d439a | 2010-07-14 21:35:45 +0000 | [diff] [blame] | 435 | } |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 436 | |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 437 | case CK_BitCast: |
| 438 | case CK_BaseToDerived: |
| 439 | case CK_DerivedToBase: |
| 440 | case CK_UncheckedDerivedToBase: |
| 441 | case CK_Dynamic: |
| 442 | case CK_ToUnion: |
| 443 | case CK_ArrayToPointerDecay: |
| 444 | case CK_FunctionToPointerDecay: |
| 445 | case CK_NullToPointer: |
| 446 | case CK_NullToMemberPointer: |
| 447 | case CK_BaseToDerivedMemberPointer: |
| 448 | case CK_DerivedToBaseMemberPointer: |
| 449 | case CK_MemberPointerToBoolean: |
John McCall | 4d4e5c1 | 2012-02-15 01:22:51 +0000 | [diff] [blame] | 450 | case CK_ReinterpretMemberPointer: |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 451 | case CK_ConstructorConversion: |
| 452 | case CK_IntegralToPointer: |
| 453 | case CK_PointerToIntegral: |
| 454 | case CK_PointerToBoolean: |
| 455 | case CK_ToVoid: |
| 456 | case CK_VectorSplat: |
| 457 | case CK_IntegralCast: |
| 458 | case CK_IntegralToBoolean: |
| 459 | case CK_IntegralToFloating: |
| 460 | case CK_FloatingToIntegral: |
| 461 | case CK_FloatingToBoolean: |
| 462 | case CK_FloatingCast: |
John McCall | 1d9b3b2 | 2011-09-09 05:25:32 +0000 | [diff] [blame] | 463 | case CK_CPointerToObjCPointerCast: |
| 464 | case CK_BlockPointerToObjCPointerCast: |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 465 | case CK_AnyPointerToBlockPointerCast: |
| 466 | case CK_ObjCObjectLValueCast: |
| 467 | case CK_FloatingComplexToReal: |
| 468 | case CK_FloatingComplexToBoolean: |
| 469 | case CK_IntegralComplexToReal: |
| 470 | case CK_IntegralComplexToBoolean: |
John McCall | 33e56f3 | 2011-09-10 06:18:15 +0000 | [diff] [blame] | 471 | case CK_ARCProduceObject: |
| 472 | case CK_ARCConsumeObject: |
| 473 | case CK_ARCReclaimReturnedObject: |
| 474 | case CK_ARCExtendBlockObject: |
Douglas Gregor | ac1303e | 2012-02-22 05:02:47 +0000 | [diff] [blame] | 475 | case CK_CopyAndAutoreleaseBlockObject: |
Eli Friedman | a6c66ce | 2012-08-31 00:14:07 +0000 | [diff] [blame] | 476 | case CK_BuiltinFnToFnPtr: |
Guy Benyei | e6b9d80 | 2013-01-20 12:31:11 +0000 | [diff] [blame] | 477 | case CK_ZeroToOCLEvent: |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 478 | llvm_unreachable("invalid cast kind for complex value"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 479 | |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 480 | case CK_FloatingRealToComplex: |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 481 | case CK_IntegralRealToComplex: |
| 482 | return EmitScalarToComplexCast(CGF.EmitScalarExpr(Op), |
| 483 | Op->getType(), DestTy); |
Eli Friedman | 6594942 | 2011-06-25 02:58:47 +0000 | [diff] [blame] | 484 | |
| 485 | case CK_FloatingComplexCast: |
| 486 | case CK_FloatingComplexToIntegralComplex: |
| 487 | case CK_IntegralComplexCast: |
| 488 | case CK_IntegralComplexToFloatingComplex: |
| 489 | return EmitComplexToComplexCast(Visit(Op), Op->getType(), DestTy); |
| 490 | } |
| 491 | |
| 492 | llvm_unreachable("unknown cast resulting in complex value"); |
Chris Lattner | d272ff0 | 2007-08-26 05:57:57 +0000 | [diff] [blame] | 493 | } |
| 494 | |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 495 | ComplexPairTy ComplexExprEmitter::VisitUnaryMinus(const UnaryOperator *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 496 | TestAndClearIgnoreReal(); |
| 497 | TestAndClearIgnoreImag(); |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 498 | ComplexPairTy Op = Visit(E->getSubExpr()); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 499 | |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 500 | llvm::Value *ResR, *ResI; |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 501 | if (Op.first->getType()->isFloatingPointTy()) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 502 | ResR = Builder.CreateFNeg(Op.first, "neg.r"); |
| 503 | ResI = Builder.CreateFNeg(Op.second, "neg.i"); |
| 504 | } else { |
| 505 | ResR = Builder.CreateNeg(Op.first, "neg.r"); |
| 506 | ResI = Builder.CreateNeg(Op.second, "neg.i"); |
| 507 | } |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 508 | return ComplexPairTy(ResR, ResI); |
| 509 | } |
| 510 | |
Chris Lattner | e98a11c | 2007-08-21 20:41:44 +0000 | [diff] [blame] | 511 | ComplexPairTy ComplexExprEmitter::VisitUnaryNot(const UnaryOperator *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 512 | TestAndClearIgnoreReal(); |
| 513 | TestAndClearIgnoreImag(); |
Chris Lattner | e98a11c | 2007-08-21 20:41:44 +0000 | [diff] [blame] | 514 | // ~(a+ib) = a + i*-b |
| 515 | ComplexPairTy Op = Visit(E->getSubExpr()); |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 516 | llvm::Value *ResI; |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 517 | if (Op.second->getType()->isFloatingPointTy()) |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 518 | ResI = Builder.CreateFNeg(Op.second, "conj.i"); |
| 519 | else |
| 520 | ResI = Builder.CreateNeg(Op.second, "conj.i"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 521 | |
Chris Lattner | e98a11c | 2007-08-21 20:41:44 +0000 | [diff] [blame] | 522 | return ComplexPairTy(Op.first, ResI); |
| 523 | } |
Chris Lattner | fa2b9c9 | 2007-08-21 20:08:23 +0000 | [diff] [blame] | 524 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 525 | ComplexPairTy ComplexExprEmitter::EmitBinAdd(const BinOpInfo &Op) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 526 | llvm::Value *ResR, *ResI; |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 527 | |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 528 | if (Op.LHS.first->getType()->isFloatingPointTy()) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 529 | ResR = Builder.CreateFAdd(Op.LHS.first, Op.RHS.first, "add.r"); |
| 530 | ResI = Builder.CreateFAdd(Op.LHS.second, Op.RHS.second, "add.i"); |
| 531 | } else { |
| 532 | ResR = Builder.CreateAdd(Op.LHS.first, Op.RHS.first, "add.r"); |
| 533 | ResI = Builder.CreateAdd(Op.LHS.second, Op.RHS.second, "add.i"); |
| 534 | } |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 535 | return ComplexPairTy(ResR, ResI); |
| 536 | } |
| 537 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 538 | ComplexPairTy ComplexExprEmitter::EmitBinSub(const BinOpInfo &Op) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 539 | llvm::Value *ResR, *ResI; |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 540 | if (Op.LHS.first->getType()->isFloatingPointTy()) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 541 | ResR = Builder.CreateFSub(Op.LHS.first, Op.RHS.first, "sub.r"); |
| 542 | ResI = Builder.CreateFSub(Op.LHS.second, Op.RHS.second, "sub.i"); |
| 543 | } else { |
| 544 | ResR = Builder.CreateSub(Op.LHS.first, Op.RHS.first, "sub.r"); |
| 545 | ResI = Builder.CreateSub(Op.LHS.second, Op.RHS.second, "sub.i"); |
| 546 | } |
Chris Lattner | 6bc1ade | 2007-08-23 23:46:33 +0000 | [diff] [blame] | 547 | return ComplexPairTy(ResR, ResI); |
| 548 | } |
| 549 | |
| 550 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 551 | ComplexPairTy ComplexExprEmitter::EmitBinMul(const BinOpInfo &Op) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 552 | using llvm::Value; |
| 553 | Value *ResR, *ResI; |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 554 | |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 555 | if (Op.LHS.first->getType()->isFloatingPointTy()) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 556 | Value *ResRl = Builder.CreateFMul(Op.LHS.first, Op.RHS.first, "mul.rl"); |
| 557 | Value *ResRr = Builder.CreateFMul(Op.LHS.second, Op.RHS.second,"mul.rr"); |
| 558 | ResR = Builder.CreateFSub(ResRl, ResRr, "mul.r"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 559 | |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 560 | Value *ResIl = Builder.CreateFMul(Op.LHS.second, Op.RHS.first, "mul.il"); |
| 561 | Value *ResIr = Builder.CreateFMul(Op.LHS.first, Op.RHS.second, "mul.ir"); |
| 562 | ResI = Builder.CreateFAdd(ResIl, ResIr, "mul.i"); |
| 563 | } else { |
| 564 | Value *ResRl = Builder.CreateMul(Op.LHS.first, Op.RHS.first, "mul.rl"); |
| 565 | Value *ResRr = Builder.CreateMul(Op.LHS.second, Op.RHS.second,"mul.rr"); |
| 566 | ResR = Builder.CreateSub(ResRl, ResRr, "mul.r"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 567 | |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 568 | Value *ResIl = Builder.CreateMul(Op.LHS.second, Op.RHS.first, "mul.il"); |
| 569 | Value *ResIr = Builder.CreateMul(Op.LHS.first, Op.RHS.second, "mul.ir"); |
| 570 | ResI = Builder.CreateAdd(ResIl, ResIr, "mul.i"); |
| 571 | } |
Chris Lattner | 2823c19 | 2007-08-21 16:34:16 +0000 | [diff] [blame] | 572 | return ComplexPairTy(ResR, ResI); |
| 573 | } |
| 574 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 575 | ComplexPairTy ComplexExprEmitter::EmitBinDiv(const BinOpInfo &Op) { |
| 576 | llvm::Value *LHSr = Op.LHS.first, *LHSi = Op.LHS.second; |
| 577 | llvm::Value *RHSr = Op.RHS.first, *RHSi = Op.RHS.second; |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 578 | |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 579 | |
| 580 | llvm::Value *DSTr, *DSTi; |
Duncan Sands | f177d9d | 2010-02-15 16:14:01 +0000 | [diff] [blame] | 581 | if (Op.LHS.first->getType()->isFloatingPointTy()) { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 582 | // (a+ib) / (c+id) = ((ac+bd)/(cc+dd)) + i((bc-ad)/(cc+dd)) |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 583 | llvm::Value *Tmp1 = Builder.CreateFMul(LHSr, RHSr); // a*c |
| 584 | llvm::Value *Tmp2 = Builder.CreateFMul(LHSi, RHSi); // b*d |
| 585 | llvm::Value *Tmp3 = Builder.CreateFAdd(Tmp1, Tmp2); // ac+bd |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 586 | |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 587 | llvm::Value *Tmp4 = Builder.CreateFMul(RHSr, RHSr); // c*c |
| 588 | llvm::Value *Tmp5 = Builder.CreateFMul(RHSi, RHSi); // d*d |
| 589 | llvm::Value *Tmp6 = Builder.CreateFAdd(Tmp4, Tmp5); // cc+dd |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 590 | |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 591 | llvm::Value *Tmp7 = Builder.CreateFMul(LHSi, RHSr); // b*c |
| 592 | llvm::Value *Tmp8 = Builder.CreateFMul(LHSr, RHSi); // a*d |
| 593 | llvm::Value *Tmp9 = Builder.CreateFSub(Tmp7, Tmp8); // bc-ad |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 594 | |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 595 | DSTr = Builder.CreateFDiv(Tmp3, Tmp6); |
| 596 | DSTi = Builder.CreateFDiv(Tmp9, Tmp6); |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 597 | } else { |
Chris Lattner | 87415d2 | 2009-06-17 06:36:24 +0000 | [diff] [blame] | 598 | // (a+ib) / (c+id) = ((ac+bd)/(cc+dd)) + i((bc-ad)/(cc+dd)) |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 599 | llvm::Value *Tmp1 = Builder.CreateMul(LHSr, RHSr); // a*c |
| 600 | llvm::Value *Tmp2 = Builder.CreateMul(LHSi, RHSi); // b*d |
| 601 | llvm::Value *Tmp3 = Builder.CreateAdd(Tmp1, Tmp2); // ac+bd |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 602 | |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 603 | llvm::Value *Tmp4 = Builder.CreateMul(RHSr, RHSr); // c*c |
| 604 | llvm::Value *Tmp5 = Builder.CreateMul(RHSi, RHSi); // d*d |
| 605 | llvm::Value *Tmp6 = Builder.CreateAdd(Tmp4, Tmp5); // cc+dd |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 606 | |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 607 | llvm::Value *Tmp7 = Builder.CreateMul(LHSi, RHSr); // b*c |
| 608 | llvm::Value *Tmp8 = Builder.CreateMul(LHSr, RHSi); // a*d |
| 609 | llvm::Value *Tmp9 = Builder.CreateSub(Tmp7, Tmp8); // bc-ad |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 610 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 611 | if (Op.Ty->castAs<ComplexType>()->getElementType()->isUnsignedIntegerType()) { |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 612 | DSTr = Builder.CreateUDiv(Tmp3, Tmp6); |
| 613 | DSTi = Builder.CreateUDiv(Tmp9, Tmp6); |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 614 | } else { |
Benjamin Kramer | 578faa8 | 2011-09-27 21:06:10 +0000 | [diff] [blame] | 615 | DSTr = Builder.CreateSDiv(Tmp3, Tmp6); |
| 616 | DSTi = Builder.CreateSDiv(Tmp9, Tmp6); |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 617 | } |
| 618 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 619 | |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 620 | return ComplexPairTy(DSTr, DSTi); |
| 621 | } |
| 622 | |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 623 | ComplexExprEmitter::BinOpInfo |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 624 | ComplexExprEmitter::EmitBinOps(const BinaryOperator *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 625 | TestAndClearIgnoreReal(); |
| 626 | TestAndClearIgnoreImag(); |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 627 | BinOpInfo Ops; |
| 628 | Ops.LHS = Visit(E->getLHS()); |
| 629 | Ops.RHS = Visit(E->getRHS()); |
| 630 | Ops.Ty = E->getType(); |
| 631 | return Ops; |
| 632 | } |
| 633 | |
| 634 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 635 | LValue ComplexExprEmitter:: |
| 636 | EmitCompoundAssignLValue(const CompoundAssignOperator *E, |
| 637 | ComplexPairTy (ComplexExprEmitter::*Func)(const BinOpInfo&), |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 638 | RValue &Val) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 639 | TestAndClearIgnoreReal(); |
| 640 | TestAndClearIgnoreImag(); |
Jeffrey Yasskin | dec0984 | 2011-01-18 02:00:16 +0000 | [diff] [blame] | 641 | QualType LHSTy = E->getLHS()->getType(); |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 642 | |
| 643 | BinOpInfo OpInfo; |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 644 | |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 645 | // Load the RHS and LHS operands. |
| 646 | // __block variables need to have the rhs evaluated first, plus this should |
John McCall | 641ca7d | 2010-11-16 05:45:35 +0000 | [diff] [blame] | 647 | // improve codegen a little. |
Eli Friedman | ab3a852 | 2009-03-28 01:22:36 +0000 | [diff] [blame] | 648 | OpInfo.Ty = E->getComputationResultType(); |
John McCall | 641ca7d | 2010-11-16 05:45:35 +0000 | [diff] [blame] | 649 | |
| 650 | // The RHS should have been converted to the computation type. |
| 651 | assert(OpInfo.Ty->isAnyComplexType()); |
| 652 | assert(CGF.getContext().hasSameUnqualifiedType(OpInfo.Ty, |
| 653 | E->getRHS()->getType())); |
| 654 | OpInfo.RHS = Visit(E->getRHS()); |
Fariborz Jahanian | dfb1eb2 | 2010-03-23 18:08:50 +0000 | [diff] [blame] | 655 | |
Daniel Dunbar | 120bc77 | 2010-06-29 22:44:21 +0000 | [diff] [blame] | 656 | LValue LHS = CGF.EmitLValue(E->getLHS()); |
John McCall | 0e800c9 | 2010-12-04 08:14:53 +0000 | [diff] [blame] | 657 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 658 | // Load from the l-value and convert it. |
| 659 | if (LHSTy->isAnyComplexType()) { |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 660 | ComplexPairTy LHSVal = EmitLoadOfLValue(LHS, E->getExprLoc()); |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 661 | OpInfo.LHS = EmitComplexToComplexCast(LHSVal, LHSTy, OpInfo.Ty); |
| 662 | } else { |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 663 | llvm::Value *LHSVal = CGF.EmitLoadOfScalar(LHS, E->getExprLoc()); |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 664 | OpInfo.LHS = EmitScalarToComplexCast(LHSVal, LHSTy, OpInfo.Ty); |
| 665 | } |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 666 | |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 667 | // Expand the binary operator. |
| 668 | ComplexPairTy Result = (this->*Func)(OpInfo); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 669 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 670 | // Truncate the result and store it into the LHS lvalue. |
| 671 | if (LHSTy->isAnyComplexType()) { |
| 672 | ComplexPairTy ResVal = EmitComplexToComplexCast(Result, OpInfo.Ty, LHSTy); |
| 673 | EmitStoreOfComplex(ResVal, LHS, /*isInit*/ false); |
| 674 | Val = RValue::getComplex(ResVal); |
| 675 | } else { |
| 676 | llvm::Value *ResVal = |
| 677 | CGF.EmitComplexToScalarConversion(Result, OpInfo.Ty, LHSTy); |
| 678 | CGF.EmitStoreOfScalar(ResVal, LHS, /*isInit*/ false); |
| 679 | Val = RValue::get(ResVal); |
| 680 | } |
Daniel Dunbar | 120bc77 | 2010-06-29 22:44:21 +0000 | [diff] [blame] | 681 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 682 | return LHS; |
Chris Lattner | ab340c2 | 2007-08-26 22:09:01 +0000 | [diff] [blame] | 683 | } |
Chris Lattner | 3219c5d | 2007-08-26 21:24:19 +0000 | [diff] [blame] | 684 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 685 | // Compound assignments. |
| 686 | ComplexPairTy ComplexExprEmitter:: |
| 687 | EmitCompoundAssign(const CompoundAssignOperator *E, |
| 688 | ComplexPairTy (ComplexExprEmitter::*Func)(const BinOpInfo&)){ |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 689 | RValue Val; |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 690 | LValue LV = EmitCompoundAssignLValue(E, Func, Val); |
| 691 | |
| 692 | // The result of an assignment in C is the assigned r-value. |
Richard Smith | 7edf9e3 | 2012-11-01 22:30:59 +0000 | [diff] [blame] | 693 | if (!CGF.getLangOpts().CPlusPlus) |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 694 | return Val.getComplexVal(); |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 695 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 696 | // If the lvalue is non-volatile, return the computed value of the assignment. |
| 697 | if (!LV.isVolatileQualified()) |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 698 | return Val.getComplexVal(); |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 699 | |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 700 | return EmitLoadOfLValue(LV, E->getExprLoc()); |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 701 | } |
| 702 | |
| 703 | LValue ComplexExprEmitter::EmitBinAssignLValue(const BinaryOperator *E, |
| 704 | ComplexPairTy &Val) { |
Douglas Gregor | 6398235 | 2010-07-13 18:40:04 +0000 | [diff] [blame] | 705 | assert(CGF.getContext().hasSameUnqualifiedType(E->getLHS()->getType(), |
| 706 | E->getRHS()->getType()) && |
Chris Lattner | 9619662 | 2008-07-26 22:37:01 +0000 | [diff] [blame] | 707 | "Invalid assignment"); |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 708 | TestAndClearIgnoreReal(); |
| 709 | TestAndClearIgnoreImag(); |
| 710 | |
John McCall | cd940a1 | 2010-12-06 06:10:02 +0000 | [diff] [blame] | 711 | // Emit the RHS. __block variables need the RHS evaluated first. |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 712 | Val = Visit(E->getRHS()); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 713 | |
| 714 | // Compute the address to store into. |
| 715 | LValue LHS = CGF.EmitLValue(E->getLHS()); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 716 | |
Daniel Dunbar | 120bc77 | 2010-06-29 22:44:21 +0000 | [diff] [blame] | 717 | // Store the result value into the LHS lvalue. |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 718 | EmitStoreOfComplex(Val, LHS, /*isInit*/ false); |
Daniel Dunbar | 42f963d | 2009-06-10 04:38:50 +0000 | [diff] [blame] | 719 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 720 | return LHS; |
| 721 | } |
Daniel Dunbar | 120bc77 | 2010-06-29 22:44:21 +0000 | [diff] [blame] | 722 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 723 | ComplexPairTy ComplexExprEmitter::VisitBinAssign(const BinaryOperator *E) { |
| 724 | ComplexPairTy Val; |
| 725 | LValue LV = EmitBinAssignLValue(E, Val); |
| 726 | |
| 727 | // The result of an assignment in C is the assigned r-value. |
Richard Smith | 7edf9e3 | 2012-11-01 22:30:59 +0000 | [diff] [blame] | 728 | if (!CGF.getLangOpts().CPlusPlus) |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 729 | return Val; |
| 730 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 731 | // If the lvalue is non-volatile, return the computed value of the assignment. |
| 732 | if (!LV.isVolatileQualified()) |
| 733 | return Val; |
| 734 | |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 735 | return EmitLoadOfLValue(LV, E->getExprLoc()); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 736 | } |
| 737 | |
Chris Lattner | 756a4d8 | 2007-08-21 17:15:50 +0000 | [diff] [blame] | 738 | ComplexPairTy ComplexExprEmitter::VisitBinComma(const BinaryOperator *E) { |
John McCall | 2a41637 | 2010-12-05 02:00:02 +0000 | [diff] [blame] | 739 | CGF.EmitIgnoredExpr(E->getLHS()); |
Chris Lattner | 756a4d8 | 2007-08-21 17:15:50 +0000 | [diff] [blame] | 740 | return Visit(E->getRHS()); |
| 741 | } |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 742 | |
| 743 | ComplexPairTy ComplexExprEmitter:: |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 744 | VisitAbstractConditionalOperator(const AbstractConditionalOperator *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 745 | TestAndClearIgnoreReal(); |
| 746 | TestAndClearIgnoreImag(); |
Daniel Dunbar | 9615ecb | 2008-11-13 01:38:36 +0000 | [diff] [blame] | 747 | llvm::BasicBlock *LHSBlock = CGF.createBasicBlock("cond.true"); |
| 748 | llvm::BasicBlock *RHSBlock = CGF.createBasicBlock("cond.false"); |
| 749 | llvm::BasicBlock *ContBlock = CGF.createBasicBlock("cond.end"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 750 | |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 751 | // Bind the common expression if necessary. |
Eli Friedman | d97927d | 2012-01-06 20:42:20 +0000 | [diff] [blame] | 752 | CodeGenFunction::OpaqueValueMapping binding(CGF, E); |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 753 | |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 754 | CodeGenFunction::ConditionalEvaluation eval(CGF); |
| 755 | CGF.EmitBranchOnBoolExpr(E->getCond(), LHSBlock, RHSBlock); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 756 | |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 757 | eval.begin(CGF); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 758 | CGF.EmitBlock(LHSBlock); |
Fariborz Jahanian | aa3b57e | 2010-09-20 23:50:22 +0000 | [diff] [blame] | 759 | ComplexPairTy LHS = Visit(E->getTrueExpr()); |
Chris Lattner | 5083a53 | 2007-08-21 17:39:38 +0000 | [diff] [blame] | 760 | LHSBlock = Builder.GetInsertBlock(); |
Daniel Dunbar | d57a871 | 2008-11-11 09:41:28 +0000 | [diff] [blame] | 761 | CGF.EmitBranch(ContBlock); |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 762 | eval.end(CGF); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 763 | |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 764 | eval.begin(CGF); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 765 | CGF.EmitBlock(RHSBlock); |
John McCall | 56ca35d | 2011-02-17 10:25:35 +0000 | [diff] [blame] | 766 | ComplexPairTy RHS = Visit(E->getFalseExpr()); |
Chris Lattner | 5083a53 | 2007-08-21 17:39:38 +0000 | [diff] [blame] | 767 | RHSBlock = Builder.GetInsertBlock(); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 768 | CGF.EmitBlock(ContBlock); |
John McCall | 150b462 | 2011-01-26 04:00:11 +0000 | [diff] [blame] | 769 | eval.end(CGF); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 770 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 771 | // Create a PHI node for the real part. |
Jay Foad | bbf3bac | 2011-03-30 11:28:58 +0000 | [diff] [blame] | 772 | llvm::PHINode *RealPN = Builder.CreatePHI(LHS.first->getType(), 2, "cond.r"); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 773 | RealPN->addIncoming(LHS.first, LHSBlock); |
| 774 | RealPN->addIncoming(RHS.first, RHSBlock); |
| 775 | |
| 776 | // Create a PHI node for the imaginary part. |
Jay Foad | bbf3bac | 2011-03-30 11:28:58 +0000 | [diff] [blame] | 777 | llvm::PHINode *ImagPN = Builder.CreatePHI(LHS.first->getType(), 2, "cond.i"); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 778 | ImagPN->addIncoming(LHS.second, LHSBlock); |
| 779 | ImagPN->addIncoming(RHS.second, RHSBlock); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 780 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 781 | return ComplexPairTy(RealPN, ImagPN); |
| 782 | } |
| 783 | |
Chris Lattner | d0b1203 | 2007-08-24 02:18:47 +0000 | [diff] [blame] | 784 | ComplexPairTy ComplexExprEmitter::VisitChooseExpr(ChooseExpr *E) { |
Eli Friedman | a5e6601 | 2013-07-20 00:40:58 +0000 | [diff] [blame] | 785 | return Visit(E->getChosenSubExpr()); |
Chris Lattner | d0b1203 | 2007-08-24 02:18:47 +0000 | [diff] [blame] | 786 | } |
| 787 | |
Eli Friedman | c4777f1 | 2008-05-13 23:11:35 +0000 | [diff] [blame] | 788 | ComplexPairTy ComplexExprEmitter::VisitInitListExpr(InitListExpr *E) { |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 789 | bool Ignore = TestAndClearIgnoreReal(); |
| 790 | (void)Ignore; |
| 791 | assert (Ignore == false && "init list ignored"); |
| 792 | Ignore = TestAndClearIgnoreImag(); |
| 793 | (void)Ignore; |
| 794 | assert (Ignore == false && "init list ignored"); |
Eli Friedman | 0c706c2 | 2011-09-19 23:17:44 +0000 | [diff] [blame] | 795 | |
| 796 | if (E->getNumInits() == 2) { |
| 797 | llvm::Value *Real = CGF.EmitScalarExpr(E->getInit(0)); |
| 798 | llvm::Value *Imag = CGF.EmitScalarExpr(E->getInit(1)); |
| 799 | return ComplexPairTy(Real, Imag); |
| 800 | } else if (E->getNumInits() == 1) { |
Eli Friedman | c4777f1 | 2008-05-13 23:11:35 +0000 | [diff] [blame] | 801 | return Visit(E->getInit(0)); |
Eli Friedman | 0c706c2 | 2011-09-19 23:17:44 +0000 | [diff] [blame] | 802 | } |
Eli Friedman | c4777f1 | 2008-05-13 23:11:35 +0000 | [diff] [blame] | 803 | |
| 804 | // Empty init list intializes to null |
Eli Friedman | 0c706c2 | 2011-09-19 23:17:44 +0000 | [diff] [blame] | 805 | assert(E->getNumInits() == 0 && "Unexpected number of inits"); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 806 | QualType Ty = E->getType()->castAs<ComplexType>()->getElementType(); |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 807 | llvm::Type* LTy = CGF.ConvertType(Ty); |
Owen Anderson | c9c88b4 | 2009-07-31 20:28:54 +0000 | [diff] [blame] | 808 | llvm::Value* zeroConstant = llvm::Constant::getNullValue(LTy); |
Eli Friedman | c4777f1 | 2008-05-13 23:11:35 +0000 | [diff] [blame] | 809 | return ComplexPairTy(zeroConstant, zeroConstant); |
| 810 | } |
| 811 | |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 812 | ComplexPairTy ComplexExprEmitter::VisitVAArgExpr(VAArgExpr *E) { |
Daniel Dunbar | 0785570 | 2009-02-11 22:25:55 +0000 | [diff] [blame] | 813 | llvm::Value *ArgValue = CGF.EmitVAListRef(E->getSubExpr()); |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 814 | llvm::Value *ArgPtr = CGF.EmitVAArg(ArgValue, E->getType()); |
| 815 | |
| 816 | if (!ArgPtr) { |
| 817 | CGF.ErrorUnsupported(E, "complex va_arg expression"); |
Chris Lattner | 2acc6e3 | 2011-07-18 04:24:23 +0000 | [diff] [blame] | 818 | llvm::Type *EltTy = |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 819 | CGF.ConvertType(E->getType()->castAs<ComplexType>()->getElementType()); |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 820 | llvm::Value *U = llvm::UndefValue::get(EltTy); |
| 821 | return ComplexPairTy(U, U); |
| 822 | } |
| 823 | |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 824 | return EmitLoadOfLValue(CGF.MakeNaturalAlignAddrLValue(ArgPtr, E->getType()), |
| 825 | E->getExprLoc()); |
Daniel Dunbar | 4e484b8 | 2009-02-10 03:03:30 +0000 | [diff] [blame] | 826 | } |
| 827 | |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 828 | //===----------------------------------------------------------------------===// |
| 829 | // Entry Point into this File |
| 830 | //===----------------------------------------------------------------------===// |
| 831 | |
| 832 | /// EmitComplexExpr - Emit the computation of the specified expression of |
| 833 | /// complex type, ignoring the result. |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 834 | ComplexPairTy CodeGenFunction::EmitComplexExpr(const Expr *E, bool IgnoreReal, |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 835 | bool IgnoreImag) { |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 836 | assert(E && getComplexType(E->getType()) && |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 837 | "Invalid complex expression to emit"); |
Mike Stump | db52dcd | 2009-09-09 13:00:44 +0000 | [diff] [blame] | 838 | |
John McCall | b418d74 | 2010-11-16 10:08:07 +0000 | [diff] [blame] | 839 | return ComplexExprEmitter(*this, IgnoreReal, IgnoreImag) |
Mike Stump | 7f79f9b | 2009-05-29 15:46:01 +0000 | [diff] [blame] | 840 | .Visit(const_cast<Expr*>(E)); |
Chris Lattner | b6ef18a | 2007-08-21 05:54:00 +0000 | [diff] [blame] | 841 | } |
| 842 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 843 | void CodeGenFunction::EmitComplexExprIntoLValue(const Expr *E, LValue dest, |
| 844 | bool isInit) { |
| 845 | assert(E && getComplexType(E->getType()) && |
Chris Lattner | 23b1cdb | 2007-08-23 23:43:33 +0000 | [diff] [blame] | 846 | "Invalid complex expression to emit"); |
| 847 | ComplexExprEmitter Emitter(*this); |
| 848 | ComplexPairTy Val = Emitter.Visit(const_cast<Expr*>(E)); |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 849 | Emitter.EmitStoreOfComplex(Val, dest, isInit); |
Chris Lattner | 23b1cdb | 2007-08-23 23:43:33 +0000 | [diff] [blame] | 850 | } |
Chris Lattner | 9b65551 | 2007-08-31 22:49:20 +0000 | [diff] [blame] | 851 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 852 | /// EmitStoreOfComplex - Store a complex number into the specified l-value. |
| 853 | void CodeGenFunction::EmitStoreOfComplex(ComplexPairTy V, LValue dest, |
| 854 | bool isInit) { |
| 855 | ComplexExprEmitter(*this).EmitStoreOfComplex(V, dest, isInit); |
Daniel Dunbar | 7f8ea5c | 2008-08-30 05:35:15 +0000 | [diff] [blame] | 856 | } |
| 857 | |
John McCall | 9d232c8 | 2013-03-07 21:37:08 +0000 | [diff] [blame] | 858 | /// EmitLoadOfComplex - Load a complex number from the specified address. |
Nick Lewycky | 4ee7dc2 | 2013-10-02 02:29:49 +0000 | [diff] [blame] | 859 | ComplexPairTy CodeGenFunction::EmitLoadOfComplex(LValue src, |
| 860 | SourceLocation loc) { |
| 861 | return ComplexExprEmitter(*this).EmitLoadOfLValue(src, loc); |
Chris Lattner | 9b65551 | 2007-08-31 22:49:20 +0000 | [diff] [blame] | 862 | } |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 863 | |
| 864 | LValue CodeGenFunction::EmitComplexAssignmentLValue(const BinaryOperator *E) { |
John McCall | 2a41637 | 2010-12-05 02:00:02 +0000 | [diff] [blame] | 865 | assert(E->getOpcode() == BO_Assign); |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 866 | ComplexPairTy Val; // ignored |
John McCall | 2a41637 | 2010-12-05 02:00:02 +0000 | [diff] [blame] | 867 | return ComplexExprEmitter(*this).EmitBinAssignLValue(E, Val); |
| 868 | } |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 869 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 870 | typedef ComplexPairTy (ComplexExprEmitter::*CompoundFunc)( |
| 871 | const ComplexExprEmitter::BinOpInfo &); |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 872 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 873 | static CompoundFunc getComplexOp(BinaryOperatorKind Op) { |
| 874 | switch (Op) { |
| 875 | case BO_MulAssign: return &ComplexExprEmitter::EmitBinMul; |
| 876 | case BO_DivAssign: return &ComplexExprEmitter::EmitBinDiv; |
| 877 | case BO_SubAssign: return &ComplexExprEmitter::EmitBinSub; |
| 878 | case BO_AddAssign: return &ComplexExprEmitter::EmitBinAdd; |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 879 | default: |
| 880 | llvm_unreachable("unexpected complex compound assignment"); |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 881 | } |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 882 | } |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 883 | |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 884 | LValue CodeGenFunction:: |
| 885 | EmitComplexCompoundAssignmentLValue(const CompoundAssignOperator *E) { |
| 886 | CompoundFunc Op = getComplexOp(E->getOpcode()); |
| 887 | RValue Val; |
John McCall | 2a41637 | 2010-12-05 02:00:02 +0000 | [diff] [blame] | 888 | return ComplexExprEmitter(*this).EmitCompoundAssignLValue(E, Op, Val); |
John McCall | 83ce9d4 | 2010-11-16 23:07:28 +0000 | [diff] [blame] | 889 | } |
Eli Friedman | 0934e18 | 2013-06-12 01:40:06 +0000 | [diff] [blame] | 890 | |
| 891 | LValue CodeGenFunction:: |
| 892 | EmitScalarCompooundAssignWithComplex(const CompoundAssignOperator *E, |
| 893 | llvm::Value *&Result) { |
| 894 | CompoundFunc Op = getComplexOp(E->getOpcode()); |
| 895 | RValue Val; |
| 896 | LValue Ret = ComplexExprEmitter(*this).EmitCompoundAssignLValue(E, Op, Val); |
| 897 | Result = Val.getScalarVal(); |
| 898 | return Ret; |
| 899 | } |