diff options
Diffstat (limited to 'llvm/test/Transforms/EarlyCSE/floatingpoint.ll')
| -rw-r--r-- | llvm/test/Transforms/EarlyCSE/floatingpoint.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/llvm/test/Transforms/EarlyCSE/floatingpoint.ll b/llvm/test/Transforms/EarlyCSE/floatingpoint.ll new file mode 100644 index 00000000000..d6811a3d648 --- /dev/null +++ b/llvm/test/Transforms/EarlyCSE/floatingpoint.ll @@ -0,0 +1,15 @@ +; RUN: opt < %s -S -early-cse | FileCheck %s +; RUN: opt < %s -S -basicaa -early-cse-memssa | FileCheck %s + +; Ensure we don't simplify away additions vectors of +0.0's (same as scalars). +define <4 x float> @fV( <4 x float> %a) { + ; CHECK: %b = fadd <4 x float> %a, zeroinitializer + %b = fadd <4 x float> %a, <float 0.0,float 0.0,float 0.0,float 0.0> + ret <4 x float> %b +} + +define <4 x float> @fW( <4 x float> %a) { + ; CHECK: ret <4 x float> %a + %b = fadd <4 x float> %a, <float -0.0,float -0.0,float -0.0,float -0.0> + ret <4 x float> %b +} |
