Mercurial > hg > CbC > CbC_llvm
diff test/CodeGen/X86/extractelement-load.ll @ 0:95c75e76d11b LLVM3.4
LLVM 3.4
author | Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp> |
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date | Thu, 12 Dec 2013 13:56:28 +0900 |
parents | |
children | 54457678186b |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/CodeGen/X86/extractelement-load.ll Thu Dec 12 13:56:28 2013 +0900 @@ -0,0 +1,25 @@ +; RUN: llc < %s -march=x86 -mattr=+sse2 -mcpu=yonah | FileCheck %s +; RUN: llc < %s -march=x86-64 -mattr=+sse2 -mcpu=core2 | FileCheck %s + +define i32 @t(<2 x i64>* %val) nounwind { +; CHECK-LABEL: t: +; CHECK-NOT: movd +; CHECK: movl 8( +; CHECK-NEXT: ret + %tmp2 = load <2 x i64>* %val, align 16 ; <<2 x i64>> [#uses=1] + %tmp3 = bitcast <2 x i64> %tmp2 to <4 x i32> ; <<4 x i32>> [#uses=1] + %tmp4 = extractelement <4 x i32> %tmp3, i32 2 ; <i32> [#uses=1] + ret i32 %tmp4 +} + +; Case where extractelement of load ends up as undef. +; (Making sure this doesn't crash.) +define i32 @t2(<8 x i32>* %xp) { +; CHECK-LABEL: t2: +; CHECK: ret + %x = load <8 x i32>* %xp + %Shuff68 = shufflevector <8 x i32> %x, <8 x i32> undef, <8 x i32> <i32 +undef, i32 7, i32 9, i32 undef, i32 13, i32 15, i32 1, i32 3> + %y = extractelement <8 x i32> %Shuff68, i32 0 + ret i32 %y +}