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[X86][SSE] Test case for PR2585 

llvm-svn: 266669
This commit is contained in:
Simon Pilgrim 2016-04-18 21:07:49 +00:00
parent 9e957a0ac6
commit 9c7ea2dfaa
1 changed files with 32 additions and 0 deletions
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32
llvm/test/CodeGen/X86/pr2585.ll Normal file
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X32
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse2 | FileCheck %s --check-prefix=X64
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 @PR2585() {
; X32-LABEL: PR2585:
; X32: # BB#0:
; X32-NEXT: pshuflw {{.*#+}} xmm0 = mem[0,2,2,3,4,5,6,7]
; X32-NEXT: pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,6,7]
; X32-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; X32-NEXT: movq %xmm0, __unnamed_2
; X32-NEXT: retl
;
; X64-LABEL: PR2585:
; X64: # BB#0:
; X64-NEXT: pshuflw {{.*#+}} xmm0 = mem[0,2,2,3,4,5,6,7]
; X64-NEXT: pshufhw {{.*#+}} xmm0 = xmm0[0,1,2,3,4,6,6,7]
; X64-NEXT: pshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; X64-NEXT: movq %xmm0, {{.*}}(%rip)
; X64-NEXT: retq
load <4 x i32>, <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 > ; <<8 x 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
}