From 1a6e930ea4697a0666d4ae728e45b11c42524d5d Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Thu, 21 Aug 2008 23:04:49 +0000 Subject: [PATCH] Testcase for PR2585. llvm-svn: 55151 --- llvm/test/CodeGen/X86/vec_shuffle-21.ll | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 llvm/test/CodeGen/X86/vec_shuffle-21.ll diff --git a/llvm/test/CodeGen/X86/vec_shuffle-21.ll b/llvm/test/CodeGen/X86/vec_shuffle-21.ll new file mode 100644 index 000000000000..5409acf2f7e6 --- /dev/null +++ b/llvm/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 ; :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 +}