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| -rw-r--r-- | test/CodeGen/X86/vec_shuffle-21.ll | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/test/CodeGen/X86/vec_shuffle-21.ll b/test/CodeGen/X86/vec_shuffle-21.ll new file mode 100644 index 0000000000..5409acf2f7 --- /dev/null +++ b/test/CodeGen/X86/vec_shuffle-21.ll @@ -0,0 +1,21 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 -o %t -f +; RUN: grep pshuflw %t | count 1 +; RUN: grep pextrw %t | count 2 +; RUN: grep pinsrw %t | count 2 +; PR2585 + +; FIXME: This testcase produces icky code. It can be made much better! + +external constant <4 x i32> ; <<4 x i32>*>:0 [#uses=1] +external constant <4 x i16> ; <<4 x i16>*>:1 [#uses=1] + +define internal void @""() { + load <4 x i32>* @0, align 16 ; <<4 x i32>>:1 [#uses=1] + bitcast <4 x i32> %1 to <8 x i16> ; <<8 x i16>>:2[#uses=1] + shufflevector <8 x i16> %2, <8 x i16> undef, <8 x i32> < i32 0, i32 2, i32 4, i32 6, i32 undef, i32 undef, i32 undef, i32 undef > ; <<8x i16>>:3 [#uses=1] + bitcast <8 x i16> %3 to <2 x i64> ; <<2 x i64>>:4 [#uses=1] + extractelement <2 x i64> %4, i32 0 ; <i64>:5 [#uses=1] + bitcast i64 %5 to <4 x i16> ; <<4 x i16>>:6 [#uses=1] + store <4 x i16> %6, <4 x i16>* @1, align 8 + ret void +} |