1// WebAssemblyInstrFloat.td-WebAssembly Float codegen support ---*- tablegen -*- 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9/// 10/// \file 11/// WebAssembly Floating-point operand code-gen constructs. 12/// 13//===----------------------------------------------------------------------===// 14 15let Defs = [ARGUMENTS] in { 16 17let isCommutable = 1 in 18defm ADD : BinaryFP<fadd, "add ", 0x92, 0xa0>; 19defm SUB : BinaryFP<fsub, "sub ", 0x93, 0xa1>; 20let isCommutable = 1 in 21defm MUL : BinaryFP<fmul, "mul ", 0x94, 0xa2>; 22defm DIV : BinaryFP<fdiv, "div ", 0x95, 0xa3>; 23defm SQRT : UnaryFP<fsqrt, "sqrt", 0x91, 0x9f>; 24 25defm ABS : UnaryFP<fabs, "abs ", 0x8b, 0x99>; 26defm NEG : UnaryFP<fneg, "neg ", 0x8c, 0x9a>; 27defm COPYSIGN : BinaryFP<fcopysign, "copysign", 0x98, 0xa6>; 28 29let isCommutable = 1 in { 30defm MIN : BinaryFP<fminnan, "min ", 0x96, 0xa4>; 31defm MAX : BinaryFP<fmaxnan, "max ", 0x97, 0xa5>; 32} // isCommutable = 1 33 34defm CEIL : UnaryFP<fceil, "ceil", 0x8d, 0x9b>; 35defm FLOOR : UnaryFP<ffloor, "floor", 0x8e, 0x9c>; 36defm TRUNC : UnaryFP<ftrunc, "trunc", 0x8f, 0x9d>; 37defm NEAREST : UnaryFP<fnearbyint, "nearest", 0x90, 0x9e>; 38 39} // Defs = [ARGUMENTS] 40 41// DAGCombine oddly folds casts into the rhs of copysign. Unfold them. 42def : Pat<(fcopysign F64:$lhs, F32:$rhs), 43 (COPYSIGN_F64 F64:$lhs, (F64_PROMOTE_F32 F32:$rhs))>; 44def : Pat<(fcopysign F32:$lhs, F64:$rhs), 45 (COPYSIGN_F32 F32:$lhs, (F32_DEMOTE_F64 F64:$rhs))>; 46 47// WebAssembly doesn't expose inexact exceptions, so map frint to fnearbyint. 48def : Pat<(frint f32:$src), (NEAREST_F32 f32:$src)>; 49def : Pat<(frint f64:$src), (NEAREST_F64 f64:$src)>; 50 51let Defs = [ARGUMENTS] in { 52 53let isCommutable = 1 in { 54defm EQ : ComparisonFP<SETOEQ, "eq ", 0x5b, 0x61>; 55defm NE : ComparisonFP<SETUNE, "ne ", 0x5c, 0x62>; 56} // isCommutable = 1 57defm LT : ComparisonFP<SETOLT, "lt ", 0x5d, 0x63>; 58defm LE : ComparisonFP<SETOLE, "le ", 0x5f, 0x65>; 59defm GT : ComparisonFP<SETOGT, "gt ", 0x5e, 0x64>; 60defm GE : ComparisonFP<SETOGE, "ge ", 0x60, 0x66>; 61 62} // Defs = [ARGUMENTS] 63 64// Don't care floating-point comparisons, supported via other comparisons. 65def : Pat<(seteq f32:$lhs, f32:$rhs), (EQ_F32 f32:$lhs, f32:$rhs)>; 66def : Pat<(setne f32:$lhs, f32:$rhs), (NE_F32 f32:$lhs, f32:$rhs)>; 67def : Pat<(setlt f32:$lhs, f32:$rhs), (LT_F32 f32:$lhs, f32:$rhs)>; 68def : Pat<(setle f32:$lhs, f32:$rhs), (LE_F32 f32:$lhs, f32:$rhs)>; 69def : Pat<(setgt f32:$lhs, f32:$rhs), (GT_F32 f32:$lhs, f32:$rhs)>; 70def : Pat<(setge f32:$lhs, f32:$rhs), (GE_F32 f32:$lhs, f32:$rhs)>; 71def : Pat<(seteq f64:$lhs, f64:$rhs), (EQ_F64 f64:$lhs, f64:$rhs)>; 72def : Pat<(setne f64:$lhs, f64:$rhs), (NE_F64 f64:$lhs, f64:$rhs)>; 73def : Pat<(setlt f64:$lhs, f64:$rhs), (LT_F64 f64:$lhs, f64:$rhs)>; 74def : Pat<(setle f64:$lhs, f64:$rhs), (LE_F64 f64:$lhs, f64:$rhs)>; 75def : Pat<(setgt f64:$lhs, f64:$rhs), (GT_F64 f64:$lhs, f64:$rhs)>; 76def : Pat<(setge f64:$lhs, f64:$rhs), (GE_F64 f64:$lhs, f64:$rhs)>; 77 78let Defs = [ARGUMENTS] in { 79 80defm SELECT_F32 : I<(outs F32:$dst), (ins F32:$lhs, F32:$rhs, I32:$cond), 81 (outs), (ins), 82 [(set F32:$dst, (select I32:$cond, F32:$lhs, F32:$rhs))], 83 "f32.select\t$dst, $lhs, $rhs, $cond", "f32.select", 0x1b>; 84defm SELECT_F64 : I<(outs F64:$dst), (ins F64:$lhs, F64:$rhs, I32:$cond), 85 (outs), (ins), 86 [(set F64:$dst, (select I32:$cond, F64:$lhs, F64:$rhs))], 87 "f64.select\t$dst, $lhs, $rhs, $cond", "f64.select", 0x1b>; 88 89} // Defs = [ARGUMENTS] 90 91// ISD::SELECT requires its operand to conform to getBooleanContents, but 92// WebAssembly's select interprets any non-zero value as true, so we can fold 93// a setne with 0 into a select. 94def : Pat<(select (i32 (setne I32:$cond, 0)), F32:$lhs, F32:$rhs), 95 (SELECT_F32 F32:$lhs, F32:$rhs, I32:$cond)>; 96def : Pat<(select (i32 (setne I32:$cond, 0)), F64:$lhs, F64:$rhs), 97 (SELECT_F64 F64:$lhs, F64:$rhs, I32:$cond)>; 98 99// And again, this time with seteq instead of setne and the arms reversed. 100def : Pat<(select (i32 (seteq I32:$cond, 0)), F32:$lhs, F32:$rhs), 101 (SELECT_F32 F32:$rhs, F32:$lhs, I32:$cond)>; 102def : Pat<(select (i32 (seteq I32:$cond, 0)), F64:$lhs, F64:$rhs), 103 (SELECT_F64 F64:$rhs, F64:$lhs, I32:$cond)>; 104