diff options
Diffstat (limited to 'llvm/test/Transforms/InstCombine/pow-sqrt.ll')
| -rw-r--r-- | llvm/test/Transforms/InstCombine/pow-sqrt.ll | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/llvm/test/Transforms/InstCombine/pow-sqrt.ll b/llvm/test/Transforms/InstCombine/pow-sqrt.ll index 1e6166c5f11..52175f1b124 100644 --- a/llvm/test/Transforms/InstCombine/pow-sqrt.ll +++ b/llvm/test/Transforms/InstCombine/pow-sqrt.ll @@ -9,5 +9,14 @@ define double @pow_half(double %x) { ; CHECK-NEXT: %sqrt = call fast double @sqrt(double %x) ; CHECK-NEXT: ret double %sqrt -declare double @llvm.pow.f64(double, double) +define double @pow_neghalf(double %x) { + %pow = call fast double @llvm.pow.f64(double %x, double -5.000000e-01) + ret double %pow +} +; CHECK-LABEL: define double @pow_neghalf( +; CHECK-NEXT: %sqrt = call fast double @sqrt(double %x) #0 +; CHECK-NEXT: %sqrtrecip = fdiv fast double 1.000000e+00, %sqrt +; CHECK-NEXT: ret double %sqrtrecip + +declare double @llvm.pow.f64(double, double) |
