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| author | Yingwei Zheng <dtcxzyw2333@gmail.com> | 2025-02-25 22:03:17 +0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-25 22:03:17 +0800 |
| commit | 44d1dbd24c20a0ee93063dcf44d68e2b8f0bf77c (patch) | |
| tree | 1057e960ffce2a0d813ee3ae519ff7235560926f /llvm/lib/Support | |
| parent | d21b2e619a5e23fd2f4cb05f5929990ee517d164 (diff) | |
| download | llvm-44d1dbd24c20a0ee93063dcf44d68e2b8f0bf77c.zip llvm-44d1dbd24c20a0ee93063dcf44d68e2b8f0bf77c.tar.gz llvm-44d1dbd24c20a0ee93063dcf44d68e2b8f0bf77c.tar.bz2 | |
[X86][DAGCombiner] Skip x87 fp80 values in `combineFMulOrFDivWithIntPow2` (#128618)
f80 is not a valid IEEE floating-point type.
Closes https://github.com/llvm/llvm-project/issues/128528.
Diffstat (limited to 'llvm/lib/Support')
| -rw-r--r-- | llvm/lib/Support/APFloat.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Support/APFloat.cpp b/llvm/lib/Support/APFloat.cpp index b0d92ae..cbee7f4 100644 --- a/llvm/lib/Support/APFloat.cpp +++ b/llvm/lib/Support/APFloat.cpp @@ -353,6 +353,11 @@ bool APFloatBase::semanticsHasNaN(const fltSemantics &semantics) { return semantics.nonFiniteBehavior != fltNonfiniteBehavior::FiniteOnly; } +bool APFloatBase::isIEEELikeFP(const fltSemantics &semantics) { + // Keep in sync with Type::isIEEELikeFPTy + return SemanticsToEnum(semantics) <= S_IEEEquad; +} + bool APFloatBase::isRepresentableAsNormalIn(const fltSemantics &Src, const fltSemantics &Dst) { // Exponent range must be larger. |