diff options
Diffstat (limited to 'test/CodeGen/X86/pshufd-combine-crash.ll')
| -rw-r--r-- | test/CodeGen/X86/pshufd-combine-crash.ll | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/X86/pshufd-combine-crash.ll b/test/CodeGen/X86/pshufd-combine-crash.ll new file mode 100644 index 0000000..84c69e3 --- /dev/null +++ b/test/CodeGen/X86/pshufd-combine-crash.ll @@ -0,0 +1,14 @@ +; RUN: llc < %s -march=x86-64 -mcpu=corei7 -debug + +; REQUIRES: asserts + +; Test that the dag combiner doesn't assert if we try to replace a sequence of two +; v4f32 X86ISD::PSHUFD nodes with a single PSHUFD. + + +define <4 x float> @test(<4 x float> %V) { + %1 = shufflevector <4 x float> %V, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1> + %2 = shufflevector <4 x float> %1, <4 x float> undef, <4 x i32> <i32 3, i32 0, i32 2, i32 1> + ret <4 x float> %2 +} + |