diff options
| author | Matt Arsenault <Matthew.Arsenault@amd.com> | 2024-04-04 12:50:53 -0400 |
|---|---|---|
| committer | Matt Arsenault <arsenm2@gmail.com> | 2024-04-08 09:32:14 -0400 |
| commit | bdf428af9825e684d9ed22d0137a456c131389f7 (patch) | |
| tree | 5cc5809396318274e4a04268a2726e391cacc545 | |
| parent | f139387fb6e76a5249e8d7c2d124565e6b566ef4 (diff) | |
ValueTracking: Consider demanded elts for vector constants in computeKnownFPClass
| -rw-r--r-- | llvm/lib/Analysis/ValueTracking.cpp | 3 | ||||
| -rw-r--r-- | llvm/test/Transforms/Attributor/nofpclass.ll | 4 |
2 files changed, 5 insertions, 2 deletions
diff --git a/llvm/lib/Analysis/ValueTracking.cpp b/llvm/lib/Analysis/ValueTracking.cpp index 0c8ab4c66cd1..d50ccd8af287 100644 --- a/llvm/lib/Analysis/ValueTracking.cpp +++ b/llvm/lib/Analysis/ValueTracking.cpp @@ -4524,6 +4524,9 @@ void computeKnownFPClass(const Value *V, const APInt &DemandedElts, // For vectors, verify that each element is not NaN. unsigned NumElts = VFVTy->getNumElements(); for (unsigned i = 0; i != NumElts; ++i) { + if (!DemandedElts[i]) + continue; + Constant *Elt = CV->getAggregateElement(i); if (!Elt) { Known = KnownFPClass(); diff --git a/llvm/test/Transforms/Attributor/nofpclass.ll b/llvm/test/Transforms/Attributor/nofpclass.ll index 8f3e9d2fd96b..7828629f9fc0 100644 --- a/llvm/test/Transforms/Attributor/nofpclass.ll +++ b/llvm/test/Transforms/Attributor/nofpclass.ll @@ -1802,7 +1802,7 @@ define float @shufflevector_extractelt3(<2 x float> %arg0, <2 x float> nofpclass define float @shufflevector_constantdatavector_demanded0() { ; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) -; CHECK-LABEL: define nofpclass(snan inf nzero sub nnorm) float @shufflevector_constantdatavector_demanded0 +; CHECK-LABEL: define nofpclass(nan inf zero sub nnorm) float @shufflevector_constantdatavector_demanded0 ; CHECK-SAME: () #[[ATTR3]] { ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <3 x float> <float 1.000000e+00, float 0x7FF8000000000000, float 0.000000e+00>, <3 x float> poison, <2 x i32> <i32 0, i32 2> ; CHECK-NEXT: [[EXTRACT:%.*]] = extractelement <2 x float> [[SHUFFLE]], i32 0 @@ -1815,7 +1815,7 @@ define float @shufflevector_constantdatavector_demanded0() { define float @shufflevector_constantdatavector_demanded1() { ; CHECK: Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) -; CHECK-LABEL: define nofpclass(snan inf nzero sub nnorm) float @shufflevector_constantdatavector_demanded1 +; CHECK-LABEL: define nofpclass(nan inf nzero sub norm) float @shufflevector_constantdatavector_demanded1 ; CHECK-SAME: () #[[ATTR3]] { ; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <3 x float> <float 1.000000e+00, float 0x7FF8000000000000, float 0.000000e+00>, <3 x float> poison, <2 x i32> <i32 0, i32 2> ; CHECK-NEXT: [[EXTRACT:%.*]] = extractelement <2 x float> [[SHUFFLE]], i32 1 |