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Diffstat (limited to 'contrib/llvm/lib/Target/WebAssembly/WebAssemblyInstrFloat.td')
| -rw-r--r-- | contrib/llvm/lib/Target/WebAssembly/WebAssemblyInstrFloat.td | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/WebAssembly/WebAssemblyInstrFloat.td b/contrib/llvm/lib/Target/WebAssembly/WebAssemblyInstrFloat.td new file mode 100644 index 0000000..5520c6d --- /dev/null +++ b/contrib/llvm/lib/Target/WebAssembly/WebAssemblyInstrFloat.td @@ -0,0 +1,101 @@ +// 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)>; |
