| // WebAssemblyInstrFloat.td-WebAssembly Float codegen support ---*- tablegen -*- |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \file |
| /// \brief WebAssembly Floating-point operand code-gen constructs. |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| let Defs = [ARGUMENTS] in { |
| |
| let isCommutable = 1 in |
| defm ADD : BinaryFP<fadd, "add ">; |
| defm SUB : BinaryFP<fsub, "sub ">; |
| let isCommutable = 1 in |
| defm MUL : BinaryFP<fmul, "mul ">; |
| defm DIV : BinaryFP<fdiv, "div ">; |
| defm SQRT : UnaryFP<fsqrt, "sqrt">; |
| |
| defm ABS : UnaryFP<fabs, "abs ">; |
| defm NEG : UnaryFP<fneg, "neg ">; |
| defm COPYSIGN : BinaryFP<fcopysign, "copysign">; |
| |
| let isCommutable = 1 in { |
| defm MIN : BinaryFP<fminnan, "min ">; |
| defm MAX : BinaryFP<fmaxnan, "max ">; |
| } // isCommutable = 1 |
| |
| defm CEIL : UnaryFP<fceil, "ceil">; |
| defm FLOOR : UnaryFP<ffloor, "floor">; |
| defm TRUNC : UnaryFP<ftrunc, "trunc">; |
| defm NEAREST : UnaryFP<fnearbyint, "nearest">; |
| |
| } // Defs = [ARGUMENTS] |
| |
| // DAGCombine oddly folds casts into the rhs of copysign. Unfold them. |
| def : Pat<(fcopysign F64:$lhs, F32:$rhs), |
| (COPYSIGN_F64 F64:$lhs, (F64_PROMOTE_F32 F32:$rhs))>; |
| def : Pat<(fcopysign F32:$lhs, F64:$rhs), |
| (COPYSIGN_F32 F32:$lhs, (F32_DEMOTE_F64 F64:$rhs))>; |
| |
| // WebAssembly doesn't expose inexact exceptions, so map frint to fnearbyint. |
| def : Pat<(frint f32:$src), (NEAREST_F32 f32:$src)>; |
| def : Pat<(frint f64:$src), (NEAREST_F64 f64:$src)>; |
| |
| let Defs = [ARGUMENTS] in { |
| |
| let isCommutable = 1 in { |
| defm EQ : ComparisonFP<SETOEQ, "eq ">; |
| defm NE : ComparisonFP<SETUNE, "ne ">; |
| } // isCommutable = 1 |
| defm LT : ComparisonFP<SETOLT, "lt ">; |
| defm LE : ComparisonFP<SETOLE, "le ">; |
| defm GT : ComparisonFP<SETOGT, "gt ">; |
| defm GE : ComparisonFP<SETOGE, "ge ">; |
| |
| } // Defs = [ARGUMENTS] |
| |
| // Don't care floating-point comparisons, supported via other comparisons. |
| def : Pat<(seteq f32:$lhs, f32:$rhs), (EQ_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(setne f32:$lhs, f32:$rhs), (NE_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(setlt f32:$lhs, f32:$rhs), (LT_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(setle f32:$lhs, f32:$rhs), (LE_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(setgt f32:$lhs, f32:$rhs), (GT_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(setge f32:$lhs, f32:$rhs), (GE_F32 f32:$lhs, f32:$rhs)>; |
| def : Pat<(seteq f64:$lhs, f64:$rhs), (EQ_F64 f64:$lhs, f64:$rhs)>; |
| def : Pat<(setne f64:$lhs, f64:$rhs), (NE_F64 f64:$lhs, f64:$rhs)>; |
| def : Pat<(setlt f64:$lhs, f64:$rhs), (LT_F64 f64:$lhs, f64:$rhs)>; |
| def : Pat<(setle f64:$lhs, f64:$rhs), (LE_F64 f64:$lhs, f64:$rhs)>; |
| def : Pat<(setgt f64:$lhs, f64:$rhs), (GT_F64 f64:$lhs, f64:$rhs)>; |
| def : Pat<(setge f64:$lhs, f64:$rhs), (GE_F64 f64:$lhs, f64:$rhs)>; |
| |
| let Defs = [ARGUMENTS] in { |
| |
| def SELECT_F32 : I<(outs F32:$dst), (ins I32:$cond, F32:$lhs, F32:$rhs), |
| [(set F32:$dst, (select I32:$cond, F32:$lhs, F32:$rhs))], |
| "f32.select\t$dst, $cond, $lhs, $rhs">; |
| def SELECT_F64 : I<(outs F64:$dst), (ins I32:$cond, F64:$lhs, F64:$rhs), |
| [(set F64:$dst, (select I32:$cond, F64:$lhs, F64:$rhs))], |
| "f64.select\t$dst, $cond, $lhs, $rhs">; |
| |
| } // Defs = [ARGUMENTS] |
| |
| // ISD::SELECT requires its operand to conform to getBooleanContents, but |
| // WebAssembly's select interprets any non-zero value as true, so we can fold |
| // a setne with 0 into a select. |
| def : Pat<(select (i32 (setne I32:$cond, 0)), F32:$lhs, F32:$rhs), |
| (SELECT_F32 I32:$cond, F32:$lhs, F32:$rhs)>; |
| def : Pat<(select (i32 (setne I32:$cond, 0)), F64:$lhs, F64:$rhs), |
| (SELECT_F64 I32:$cond, F64:$lhs, F64:$rhs)>; |
| |
| // And again, this time with seteq instead of setne and the arms reversed. |
| def : Pat<(select (i32 (seteq I32:$cond, 0)), F32:$lhs, F32:$rhs), |
| (SELECT_F32 I32:$cond, F32:$rhs, F32:$lhs)>; |
| def : Pat<(select (i32 (seteq I32:$cond, 0)), F64:$lhs, F64:$rhs), |
| (SELECT_F64 I32:$cond, F64:$rhs, F64:$lhs)>; |