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-rw-r--r-- | test/Transforms/EarlyCSE/floatingpoint.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/Transforms/EarlyCSE/floatingpoint.ll b/test/Transforms/EarlyCSE/floatingpoint.ll new file mode 100644 index 0000000..2abecd7 --- /dev/null +++ b/test/Transforms/EarlyCSE/floatingpoint.ll @@ -0,0 +1,14 @@ +; RUN: opt < %s -S -early-cse | 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 +} |