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| author | Owen Anderson <resistor@mac.com> | 2015-11-20 08:16:13 +0000 |
|---|---|---|
| committer | Owen Anderson <resistor@mac.com> | 2015-11-20 08:16:13 +0000 |
| commit | 630077ef558317ac85bfc266737040eaecd0bcb0 (patch) | |
| tree | de32cd0ae4432959e87b9a995d5647df30ac4dad /llvm/test/Transforms/Reassociate/fp-expr.ll | |
| parent | 7d0cc2378655423462e33aebb7f7cd13588734a9 (diff) | |
| download | bcm5719-llvm-630077ef558317ac85bfc266737040eaecd0bcb0.tar.gz bcm5719-llvm-630077ef558317ac85bfc266737040eaecd0bcb0.zip | |
Fix a pair of issues that caused an infinite loop in reassociate.
Terrifyingly, one of them is a mishandling of floating point vectors
in Constant::isZero(). How exactly this issue survived this long
is beyond me.
llvm-svn: 253655
Diffstat (limited to 'llvm/test/Transforms/Reassociate/fp-expr.ll')
| -rw-r--r-- | llvm/test/Transforms/Reassociate/fp-expr.ll | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/llvm/test/Transforms/Reassociate/fp-expr.ll b/llvm/test/Transforms/Reassociate/fp-expr.ll new file mode 100644 index 00000000000..ee927069812 --- /dev/null +++ b/llvm/test/Transforms/Reassociate/fp-expr.ll @@ -0,0 +1,20 @@ +; RUN: opt -S -reassociate < %s | FileCheck %s + +define void @test1() { +; CHECK-LABEL: @test1 +; CHECK: call +; CHECK: fsub +; CHECK: fadd + %tmp = tail call <4 x float> @blam() + %tmp23 = fsub fast <4 x float> undef, %tmp + %tmp24 = fadd fast <4 x float> %tmp23, undef + tail call void @wombat(<4 x float> %tmp24) + ret void +} + +; Function Attrs: optsize +declare <4 x float> @blam() + +; Function Attrs: optsize +declare void @wombat(<4 x float>) + |
