| // 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 | |
| /// WebAssembly Floating-point operand code-gen constructs. | |
| /// | |
| //===----------------------------------------------------------------------===// | |
| let Defs = [ARGUMENTS] in { | |
| let isCommutable = 1 in | |
| defm ADD : BinaryFP<fadd, "add ", 0x92, 0xa0>; | |
| defm SUB : BinaryFP<fsub, "sub ", 0x93, 0xa1>; | |
| let isCommutable = 1 in | |
| defm MUL : BinaryFP<fmul, "mul ", 0x94, 0xa2>; | |
| defm DIV : BinaryFP<fdiv, "div ", 0x95, 0xa3>; | |
| defm SQRT : UnaryFP<fsqrt, "sqrt", 0x91, 0x9f>; | |
| defm ABS : UnaryFP<fabs, "abs ", 0x8b, 0x99>; | |
| defm NEG : UnaryFP<fneg, "neg ", 0x8c, 0x9a>; | |
| defm COPYSIGN : BinaryFP<fcopysign, "copysign", 0x98, 0xa6>; | |
| let isCommutable = 1 in { | |
| defm MIN : BinaryFP<fminnan, "min ", 0x96, 0xa4>; | |
| defm MAX : BinaryFP<fmaxnan, "max ", 0x97, 0xa5>; | |
| } // isCommutable = 1 | |
| defm CEIL : UnaryFP<fceil, "ceil", 0x8d, 0x9b>; | |
| defm FLOOR : UnaryFP<ffloor, "floor", 0x8e, 0x9c>; | |
| defm TRUNC : UnaryFP<ftrunc, "trunc", 0x8f, 0x9d>; | |
| defm NEAREST : UnaryFP<fnearbyint, "nearest", 0x90, 0x9e>; | |
| } // 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 ", 0x5b, 0x61>; | |
| defm NE : ComparisonFP<SETUNE, "ne ", 0x5c, 0x62>; | |
| } // isCommutable = 1 | |
| defm LT : ComparisonFP<SETOLT, "lt ", 0x5d, 0x63>; | |
| defm LE : ComparisonFP<SETOLE, "le ", 0x5f, 0x65>; | |
| defm GT : ComparisonFP<SETOGT, "gt ", 0x5e, 0x64>; | |
| defm GE : ComparisonFP<SETOGE, "ge ", 0x60, 0x66>; | |
| } // 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 { | |
| defm SELECT_F32 : I<(outs F32:$dst), (ins F32:$lhs, F32:$rhs, I32:$cond), | |
| (outs), (ins), | |
| [(set F32:$dst, (select I32:$cond, F32:$lhs, F32:$rhs))], | |
| "f32.select\t$dst, $lhs, $rhs, $cond", "f32.select", 0x1b>; | |
| defm SELECT_F64 : I<(outs F64:$dst), (ins F64:$lhs, F64:$rhs, I32:$cond), | |
| (outs), (ins), | |
| [(set F64:$dst, (select I32:$cond, F64:$lhs, F64:$rhs))], | |
| "f64.select\t$dst, $lhs, $rhs, $cond", "f64.select", 0x1b>; | |
| } // Defs = [ARGUMENTS] | |
| // ISD::SELECT requires its operand to conform to getBooleanContents, but | |
| // WebAssembly's select interprets any non-zero value as true, so we can fold | |
| // a setne with 0 into a select. | |
| def : Pat<(select (i32 (setne I32:$cond, 0)), F32:$lhs, F32:$rhs), | |
| (SELECT_F32 F32:$lhs, F32:$rhs, I32:$cond)>; | |
| def : Pat<(select (i32 (setne I32:$cond, 0)), F64:$lhs, F64:$rhs), | |
| (SELECT_F64 F64:$lhs, F64:$rhs, I32:$cond)>; | |
| // And again, this time with seteq instead of setne and the arms reversed. | |
| def : Pat<(select (i32 (seteq I32:$cond, 0)), F32:$lhs, F32:$rhs), | |
| (SELECT_F32 F32:$rhs, F32:$lhs, I32:$cond)>; | |
| def : Pat<(select (i32 (seteq I32:$cond, 0)), F64:$lhs, F64:$rhs), | |
| (SELECT_F64 F64:$rhs, F64:$lhs, I32:$cond)>; |