diff options
| -rw-r--r-- | llvm/lib/Transforms/Scalar/Reassociate.cpp | 2 | ||||
| -rw-r--r-- | llvm/test/Transforms/Reassociate/2019-08-22-FNegAssert.ll | 24 |
2 files changed, 25 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/Reassociate.cpp b/llvm/lib/Transforms/Scalar/Reassociate.cpp index 0d4894732ac..124f625ef7b 100644 --- a/llvm/lib/Transforms/Scalar/Reassociate.cpp +++ b/llvm/lib/Transforms/Scalar/Reassociate.cpp @@ -861,7 +861,7 @@ static Value *NegateValue(Value *V, Instruction *BI, // this use. We do this by moving it to the entry block (if it is a // non-instruction value) or right after the definition. These negates will // be zapped by reassociate later, so we don't need much finesse here. - BinaryOperator *TheNeg = cast<BinaryOperator>(U); + Instruction *TheNeg = cast<Instruction>(U); // Verify that the negate is in this function, V might be a constant expr. if (TheNeg->getParent()->getParent() != BI->getParent()->getParent()) diff --git a/llvm/test/Transforms/Reassociate/2019-08-22-FNegAssert.ll b/llvm/test/Transforms/Reassociate/2019-08-22-FNegAssert.ll new file mode 100644 index 00000000000..345d4e339fc --- /dev/null +++ b/llvm/test/Transforms/Reassociate/2019-08-22-FNegAssert.ll @@ -0,0 +1,24 @@ +; NOTE: Assertions have been autogenerated by utils/update_test_checks.py +; RUN: opt < %s -reassociate -S | FileCheck %s +; D61675 + +define float @test1(float %arg, float %arg1, float %arg2, float %arg3) { +; CHECK-LABEL: @test1( +; CHECK-NEXT: [[TMP5:%.*]] = fneg fast float [[ARG:%.*]] +; CHECK-NEXT: [[TMP1:%.*]] = fsub fast float [[ARG3:%.*]], [[ARG2:%.*]] +; CHECK-NEXT: [[TMP2_NEG:%.*]] = fadd fast float [[TMP5]], 5.000000e+02 +; CHECK-NEXT: [[TMP3:%.*]] = fadd fast float [[TMP2_NEG]], [[TMP1]] +; CHECK-NEXT: [[TMP4:%.*]] = fmul fast float [[TMP3]], [[TMP3]] +; CHECK-NEXT: [[TMP6:%.*]] = fdiv fast float [[TMP5]], [[ARG1:%.*]] +; CHECK-NEXT: [[TMP7:%.*]] = fadd fast float [[TMP4]], [[TMP6]] +; CHECK-NEXT: ret float [[TMP7]] +; + %tmp1 = fsub fast float %arg3, %arg2 + %tmp2 = fadd fast float %arg, -5.000000e+02 + %tmp3 = fsub fast float %tmp1, %tmp2 + %tmp4 = fmul fast float %tmp3, %tmp3 + %tmp5 = fneg fast float %arg + %tmp6 = fdiv fast float %tmp5, %arg1 + %tmp7 = fadd fast float %tmp6, %tmp4 + ret float %tmp7 +} |
