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| author | Sanjay Patel <spatel@rotateright.com> | 2019-05-07 22:58:31 +0000 |
|---|---|---|
| committer | Sanjay Patel <spatel@rotateright.com> | 2019-05-07 22:58:31 +0000 |
| commit | e088d03b9c8b25589bbf35545399ae28a34df182 (patch) | |
| tree | ee6008603c4b897a1b38cd1d5990b3cf413f32b9 /llvm/test | |
| parent | 0d8ae1e3435accab5130d71dfc872507043ca4f1 (diff) | |
| download | bcm5719-llvm-e088d03b9c8b25589bbf35545399ae28a34df182.tar.gz bcm5719-llvm-e088d03b9c8b25589bbf35545399ae28a34df182.zip | |
[ValueTracking] add logic for known-never-nan with minnum/maxnum
From the LangRef: "Returns NaN only if both operands are NaN."
llvm-svn: 360206
Diffstat (limited to 'llvm/test')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/floating-point-compare.ll | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/llvm/test/Transforms/InstSimplify/floating-point-compare.ll b/llvm/test/Transforms/InstSimplify/floating-point-compare.ll index a2785fab84d..1a1afbe9133 100644 --- a/llvm/test/Transforms/InstSimplify/floating-point-compare.ll +++ b/llvm/test/Transforms/InstSimplify/floating-point-compare.ll @@ -487,9 +487,7 @@ define i1 @orderedLessZeroMaximum(float, float) { define i1 @minnum_non_nan(float %x) { ; CHECK-LABEL: @minnum_non_nan( -; CHECK-NEXT: [[MIN:%.*]] = call float @llvm.minnum.f32(float 5.000000e-01, float [[X:%.*]]) -; CHECK-NEXT: [[CMP:%.*]] = fcmp ord float [[MIN]], 1.000000e+00 -; CHECK-NEXT: ret i1 [[CMP]] +; CHECK-NEXT: ret i1 true ; %min = call float @llvm.minnum.f32(float 0.5, float %x) %cmp = fcmp ord float %min, 1.0 @@ -498,9 +496,7 @@ define i1 @minnum_non_nan(float %x) { define i1 @maxnum_non_nan(float %x) { ; CHECK-LABEL: @maxnum_non_nan( -; CHECK-NEXT: [[MIN:%.*]] = call float @llvm.maxnum.f32(float [[X:%.*]], float 4.200000e+01) -; CHECK-NEXT: [[CMP:%.*]] = fcmp uno float [[MIN]], 1.200000e+01 -; CHECK-NEXT: ret i1 [[CMP]] +; CHECK-NEXT: ret i1 false ; %min = call float @llvm.maxnum.f32(float %x, float 42.0) %cmp = fcmp uno float %min, 12.0 |
