1286425Sdim// WebAssemblyInstrFloat.td-WebAssembly Float codegen support ---*- tablegen -*- 2286425Sdim// 3353358Sdim// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4353358Sdim// See https://llvm.org/LICENSE.txt for license information. 5353358Sdim// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6286425Sdim// 7286425Sdim//===----------------------------------------------------------------------===// 8286425Sdim/// 9286425Sdim/// \file 10341825Sdim/// WebAssembly Floating-point operand code-gen constructs. 11286425Sdim/// 12286425Sdim//===----------------------------------------------------------------------===// 13286425Sdim 14344779Sdimmulticlass UnaryFP<SDNode node, string name, bits<32> f32Inst, 15344779Sdim bits<32> f64Inst> { 16344779Sdim defm _F32 : I<(outs F32:$dst), (ins F32:$src), (outs), (ins), 17344779Sdim [(set F32:$dst, (node F32:$src))], 18344779Sdim !strconcat("f32.", !strconcat(name, "\t$dst, $src")), 19344779Sdim !strconcat("f32.", name), f32Inst>; 20344779Sdim defm _F64 : I<(outs F64:$dst), (ins F64:$src), (outs), (ins), 21344779Sdim [(set F64:$dst, (node F64:$src))], 22344779Sdim !strconcat("f64.", !strconcat(name, "\t$dst, $src")), 23344779Sdim !strconcat("f64.", name), f64Inst>; 24344779Sdim} 25344779Sdimmulticlass BinaryFP<SDNode node, string name, bits<32> f32Inst, 26344779Sdim bits<32> f64Inst> { 27344779Sdim defm _F32 : I<(outs F32:$dst), (ins F32:$lhs, F32:$rhs), (outs), (ins), 28344779Sdim [(set F32:$dst, (node F32:$lhs, F32:$rhs))], 29344779Sdim !strconcat("f32.", !strconcat(name, "\t$dst, $lhs, $rhs")), 30344779Sdim !strconcat("f32.", name), f32Inst>; 31344779Sdim defm _F64 : I<(outs F64:$dst), (ins F64:$lhs, F64:$rhs), (outs), (ins), 32344779Sdim [(set F64:$dst, (node F64:$lhs, F64:$rhs))], 33344779Sdim !strconcat("f64.", !strconcat(name, "\t$dst, $lhs, $rhs")), 34344779Sdim !strconcat("f64.", name), f64Inst>; 35344779Sdim} 36344779Sdimmulticlass ComparisonFP<CondCode cond, string name, bits<32> f32Inst, bits<32> f64Inst> { 37344779Sdim defm _F32 : I<(outs I32:$dst), (ins F32:$lhs, F32:$rhs), (outs), (ins), 38344779Sdim [(set I32:$dst, (setcc F32:$lhs, F32:$rhs, cond))], 39344779Sdim !strconcat("f32.", !strconcat(name, "\t$dst, $lhs, $rhs")), 40344779Sdim !strconcat("f32.", name), f32Inst>; 41344779Sdim defm _F64 : I<(outs I32:$dst), (ins F64:$lhs, F64:$rhs), (outs), (ins), 42344779Sdim [(set I32:$dst, (setcc F64:$lhs, F64:$rhs, cond))], 43344779Sdim !strconcat("f64.", !strconcat(name, "\t$dst, $lhs, $rhs")), 44344779Sdim !strconcat("f64.", name), f64Inst>; 45344779Sdim} 46286425Sdim 47296417Sdimlet isCommutable = 1 in 48314564Sdimdefm ADD : BinaryFP<fadd, "add ", 0x92, 0xa0>; 49314564Sdimdefm SUB : BinaryFP<fsub, "sub ", 0x93, 0xa1>; 50296417Sdimlet isCommutable = 1 in 51314564Sdimdefm MUL : BinaryFP<fmul, "mul ", 0x94, 0xa2>; 52314564Sdimdefm DIV : BinaryFP<fdiv, "div ", 0x95, 0xa3>; 53314564Sdimdefm SQRT : UnaryFP<fsqrt, "sqrt", 0x91, 0x9f>; 54286425Sdim 55314564Sdimdefm ABS : UnaryFP<fabs, "abs ", 0x8b, 0x99>; 56314564Sdimdefm NEG : UnaryFP<fneg, "neg ", 0x8c, 0x9a>; 57314564Sdimdefm COPYSIGN : BinaryFP<fcopysign, "copysign", 0x98, 0xa6>; 58286425Sdim 59296417Sdimlet isCommutable = 1 in { 60344779Sdimdefm MIN : BinaryFP<fminimum, "min ", 0x96, 0xa4>; 61344779Sdimdefm MAX : BinaryFP<fmaximum, "max ", 0x97, 0xa5>; 62296417Sdim} // isCommutable = 1 63296417Sdim 64314564Sdimdefm CEIL : UnaryFP<fceil, "ceil", 0x8d, 0x9b>; 65314564Sdimdefm FLOOR : UnaryFP<ffloor, "floor", 0x8e, 0x9c>; 66314564Sdimdefm TRUNC : UnaryFP<ftrunc, "trunc", 0x8f, 0x9d>; 67314564Sdimdefm NEAREST : UnaryFP<fnearbyint, "nearest", 0x90, 0x9e>; 68296417Sdim 69296417Sdim// DAGCombine oddly folds casts into the rhs of copysign. Unfold them. 70296417Sdimdef : Pat<(fcopysign F64:$lhs, F32:$rhs), 71296417Sdim (COPYSIGN_F64 F64:$lhs, (F64_PROMOTE_F32 F32:$rhs))>; 72296417Sdimdef : Pat<(fcopysign F32:$lhs, F64:$rhs), 73296417Sdim (COPYSIGN_F32 F32:$lhs, (F32_DEMOTE_F64 F64:$rhs))>; 74296417Sdim 75296417Sdim// WebAssembly doesn't expose inexact exceptions, so map frint to fnearbyint. 76296417Sdimdef : Pat<(frint f32:$src), (NEAREST_F32 f32:$src)>; 77296417Sdimdef : Pat<(frint f64:$src), (NEAREST_F64 f64:$src)>; 78296417Sdim 79296417Sdimlet isCommutable = 1 in { 80314564Sdimdefm EQ : ComparisonFP<SETOEQ, "eq ", 0x5b, 0x61>; 81314564Sdimdefm NE : ComparisonFP<SETUNE, "ne ", 0x5c, 0x62>; 82296417Sdim} // isCommutable = 1 83314564Sdimdefm LT : ComparisonFP<SETOLT, "lt ", 0x5d, 0x63>; 84321369Sdimdefm LE : ComparisonFP<SETOLE, "le ", 0x5f, 0x65>; 85321369Sdimdefm GT : ComparisonFP<SETOGT, "gt ", 0x5e, 0x64>; 86314564Sdimdefm GE : ComparisonFP<SETOGE, "ge ", 0x60, 0x66>; 87296417Sdim 88296417Sdim// Don't care floating-point comparisons, supported via other comparisons. 89296417Sdimdef : Pat<(seteq f32:$lhs, f32:$rhs), (EQ_F32 f32:$lhs, f32:$rhs)>; 90296417Sdimdef : Pat<(setne f32:$lhs, f32:$rhs), (NE_F32 f32:$lhs, f32:$rhs)>; 91296417Sdimdef : Pat<(setlt f32:$lhs, f32:$rhs), (LT_F32 f32:$lhs, f32:$rhs)>; 92296417Sdimdef : Pat<(setle f32:$lhs, f32:$rhs), (LE_F32 f32:$lhs, f32:$rhs)>; 93296417Sdimdef : Pat<(setgt f32:$lhs, f32:$rhs), (GT_F32 f32:$lhs, f32:$rhs)>; 94296417Sdimdef : Pat<(setge f32:$lhs, f32:$rhs), (GE_F32 f32:$lhs, f32:$rhs)>; 95296417Sdimdef : Pat<(seteq f64:$lhs, f64:$rhs), (EQ_F64 f64:$lhs, f64:$rhs)>; 96296417Sdimdef : Pat<(setne f64:$lhs, f64:$rhs), (NE_F64 f64:$lhs, f64:$rhs)>; 97296417Sdimdef : Pat<(setlt f64:$lhs, f64:$rhs), (LT_F64 f64:$lhs, f64:$rhs)>; 98296417Sdimdef : Pat<(setle f64:$lhs, f64:$rhs), (LE_F64 f64:$lhs, f64:$rhs)>; 99296417Sdimdef : Pat<(setgt f64:$lhs, f64:$rhs), (GT_F64 f64:$lhs, f64:$rhs)>; 100296417Sdimdef : Pat<(setge f64:$lhs, f64:$rhs), (GE_F64 f64:$lhs, f64:$rhs)>; 101296417Sdim 102341825Sdimdefm SELECT_F32 : I<(outs F32:$dst), (ins F32:$lhs, F32:$rhs, I32:$cond), 103341825Sdim (outs), (ins), 104341825Sdim [(set F32:$dst, (select I32:$cond, F32:$lhs, F32:$rhs))], 105341825Sdim "f32.select\t$dst, $lhs, $rhs, $cond", "f32.select", 0x1b>; 106341825Sdimdefm SELECT_F64 : I<(outs F64:$dst), (ins F64:$lhs, F64:$rhs, I32:$cond), 107341825Sdim (outs), (ins), 108341825Sdim [(set F64:$dst, (select I32:$cond, F64:$lhs, F64:$rhs))], 109341825Sdim "f64.select\t$dst, $lhs, $rhs, $cond", "f64.select", 0x1b>; 110296417Sdim 111296417Sdim// ISD::SELECT requires its operand to conform to getBooleanContents, but 112296417Sdim// WebAssembly's select interprets any non-zero value as true, so we can fold 113296417Sdim// a setne with 0 into a select. 114296417Sdimdef : Pat<(select (i32 (setne I32:$cond, 0)), F32:$lhs, F32:$rhs), 115309124Sdim (SELECT_F32 F32:$lhs, F32:$rhs, I32:$cond)>; 116296417Sdimdef : Pat<(select (i32 (setne I32:$cond, 0)), F64:$lhs, F64:$rhs), 117309124Sdim (SELECT_F64 F64:$lhs, F64:$rhs, I32:$cond)>; 118296417Sdim 119296417Sdim// And again, this time with seteq instead of setne and the arms reversed. 120296417Sdimdef : Pat<(select (i32 (seteq I32:$cond, 0)), F32:$lhs, F32:$rhs), 121309124Sdim (SELECT_F32 F32:$rhs, F32:$lhs, I32:$cond)>; 122296417Sdimdef : Pat<(select (i32 (seteq I32:$cond, 0)), F64:$lhs, F64:$rhs), 123309124Sdim (SELECT_F64 F64:$rhs, F64:$lhs, I32:$cond)>; 124