implement .ll and .bc support for nsw/nuw on shl and exact on lshr/ashr.
Factor some code better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125006 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 6d71c9e..cb4ddcb 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -2286,7 +2286,10 @@
case lltok::kw_fdiv:
case lltok::kw_urem:
case lltok::kw_srem:
- case lltok::kw_frem: {
+ case lltok::kw_frem:
+ case lltok::kw_shl:
+ case lltok::kw_lshr:
+ case lltok::kw_ashr: {
bool NUW = false;
bool NSW = false;
bool Exact = false;
@@ -2294,9 +2297,8 @@
Constant *Val0, *Val1;
Lex.Lex();
LocTy ModifierLoc = Lex.getLoc();
- if (Opc == Instruction::Add ||
- Opc == Instruction::Sub ||
- Opc == Instruction::Mul) {
+ if (Opc == Instruction::Add || Opc == Instruction::Sub ||
+ Opc == Instruction::Mul || Opc == Instruction::Shl) {
if (EatIfPresent(lltok::kw_nuw))
NUW = true;
if (EatIfPresent(lltok::kw_nsw)) {
@@ -2304,7 +2306,8 @@
if (EatIfPresent(lltok::kw_nuw))
NUW = true;
}
- } else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv) {
+ } else if (Opc == Instruction::SDiv || Opc == Instruction::UDiv ||
+ Opc == Instruction::LShr || Opc == Instruction::AShr) {
if (EatIfPresent(lltok::kw_exact))
Exact = true;
}
@@ -2331,6 +2334,9 @@
case Instruction::SDiv:
case Instruction::URem:
case Instruction::SRem:
+ case Instruction::Shl:
+ case Instruction::AShr:
+ case Instruction::LShr:
if (!Val0->getType()->isIntOrIntVectorTy())
return Error(ID.Loc, "constexpr requires integer operands");
break;
@@ -2355,9 +2361,6 @@
}
// Logical Operations
- case lltok::kw_shl:
- case lltok::kw_lshr:
- case lltok::kw_ashr:
case lltok::kw_and:
case lltok::kw_or:
case lltok::kw_xor: {
@@ -3002,55 +3005,38 @@
// Binary Operators.
case lltok::kw_add:
case lltok::kw_sub:
- case lltok::kw_mul: {
- bool NUW = false;
- bool NSW = false;
+ case lltok::kw_mul:
+ case lltok::kw_shl: {
LocTy ModifierLoc = Lex.getLoc();
- if (EatIfPresent(lltok::kw_nuw))
- NUW = true;
- if (EatIfPresent(lltok::kw_nsw)) {
- NSW = true;
- if (EatIfPresent(lltok::kw_nuw))
- NUW = true;
- }
- bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 1);
- if (!Result) {
- if (!Inst->getType()->isIntOrIntVectorTy()) {
- if (NUW)
- return Error(ModifierLoc, "nuw only applies to integer operations");
- if (NSW)
- return Error(ModifierLoc, "nsw only applies to integer operations");
- }
- if (NUW)
- cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
- if (NSW)
- cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
- }
- return Result;
+ bool NUW = EatIfPresent(lltok::kw_nuw);
+ bool NSW = EatIfPresent(lltok::kw_nsw);
+ if (!NUW) NUW = EatIfPresent(lltok::kw_nuw);
+
+ if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true;
+
+ if (NUW) cast<BinaryOperator>(Inst)->setHasNoUnsignedWrap(true);
+ if (NSW) cast<BinaryOperator>(Inst)->setHasNoSignedWrap(true);
+ return false;
}
case lltok::kw_fadd:
case lltok::kw_fsub:
case lltok::kw_fmul: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
case lltok::kw_sdiv:
- case lltok::kw_udiv: {
- bool Exact = false;
- if (EatIfPresent(lltok::kw_exact))
- Exact = true;
- bool Result = ParseArithmetic(Inst, PFS, KeywordVal, 1);
- if (!Result)
- if (Exact)
- cast<BinaryOperator>(Inst)->setIsExact(true);
- return Result;
+ case lltok::kw_udiv:
+ case lltok::kw_lshr:
+ case lltok::kw_ashr: {
+ bool Exact = EatIfPresent(lltok::kw_exact);
+
+ if (ParseArithmetic(Inst, PFS, KeywordVal, 1)) return true;
+ if (Exact) cast<BinaryOperator>(Inst)->setIsExact(true);
+ return false;
}
case lltok::kw_urem:
case lltok::kw_srem: return ParseArithmetic(Inst, PFS, KeywordVal, 1);
case lltok::kw_fdiv:
case lltok::kw_frem: return ParseArithmetic(Inst, PFS, KeywordVal, 2);
- case lltok::kw_shl:
- case lltok::kw_lshr:
- case lltok::kw_ashr:
case lltok::kw_and:
case lltok::kw_or:
case lltok::kw_xor: return ParseLogical(Inst, PFS, KeywordVal);