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[SDAG] Remove -enable-fmf-dag

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This is no longer needed as spotted by Sanjay in
https://reviews.llvm.org/D31165.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298963 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet 2017-03-28 23:46:14 +00:00
parent 672fd12613
commit fdcdb2a046
2 changed files with 8 additions and 13 deletions
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19
lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
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@ -84,10 +84,6 @@ LimitFPPrecision("limit-float-precision",
cl::location(LimitFloatPrecision),
cl::init(0));
static cl::opt<bool>
EnableFMFInDAG("enable-fmf-dag", cl::init(true), cl::Hidden,
cl::desc("Enable fast-math-flags for DAG nodes"));
/// Minimum jump table density for normal functions.
static cl::opt<unsigned>
JumpTableDensity("jump-table-density", cl::init(10), cl::Hidden,
@ -2586,14 +2582,13 @@ void SelectionDAGBuilder::visitBinary(const User &I, unsigned OpCode) {
Flags.setNoSignedWrap(nsw);
Flags.setNoUnsignedWrap(nuw);
Flags.setVectorReduction(vec_redux);
if (EnableFMFInDAG) {
Flags.setAllowReciprocal(FMF.allowReciprocal());
Flags.setAllowContract(FMF.allowContract());
Flags.setNoInfs(FMF.noInfs());
Flags.setNoNaNs(FMF.noNaNs());
Flags.setNoSignedZeros(FMF.noSignedZeros());
Flags.setUnsafeAlgebra(FMF.unsafeAlgebra());
}
Flags.setAllowReciprocal(FMF.allowReciprocal());
Flags.setAllowContract(FMF.allowContract());
Flags.setNoInfs(FMF.noInfs());
Flags.setNoNaNs(FMF.noNaNs());
Flags.setNoSignedZeros(FMF.noSignedZeros());
Flags.setUnsafeAlgebra(FMF.unsafeAlgebra());
SDValue BinNodeValue = DAG.getNode(OpCode, getCurSDLoc(), Op1.getValueType(),
Op1, Op2, &Flags);
setValue(&I, BinNodeValue);

2
test/CodeGen/X86/dag-fmf-cse.ll
View File

@ -1,5 +1,5 @@
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=fma -enable-unsafe-fp-math -enable-fmf-dag=1 | FileCheck %s
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=fma -enable-unsafe-fp-math | FileCheck %s
; If fast-math-flags are propagated correctly, the mul1 expression
; should be recognized as a factor in the last fsub, so we should