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[X86] Add test case that was supposed to go with r355116. 

llvm-svn: 355117
This commit is contained in:
Craig Topper 2019-02-28 18:50:16 +00:00
parent 38427c47b9
commit 8b1703fc1d
1 changed files with 22 additions and 0 deletions
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llvm/test/CodeGen/X86/pr40891.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=avx2 | FileCheck %s
; Make sure this sequence doesn't hang in DAG combine.
define <8 x i32> @foo(<8 x i64> %x, <4 x i64> %y) {
; CHECK-LABEL: foo:
; CHECK: # %bb.0:
; CHECK-NEXT: vandps %ymm2, %ymm0, %ymm0
; CHECK-NEXT: vandps {{\.LCPI.*}}, %ymm1, %ymm1
; CHECK-NEXT: vextractf128 $1, %ymm0, %xmm2
; CHECK-NEXT: vshufps {{.*#+}} xmm0 = xmm0[0,2],xmm2[0,2]
; CHECK-NEXT: vextractf128 $1, %ymm1, %xmm2
; CHECK-NEXT: vshufps {{.*#+}} xmm1 = xmm1[0,2],xmm2[0,2]
; CHECK-NEXT: vinsertf128 $1, %xmm1, %ymm0, %ymm0
; CHECK-NEXT: retl
%a = shufflevector <4 x i64> %y, <4 x i64> <i64 12345, i64 67890, i64 13579, i64 24680>, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
%b = and <8 x i64> %x, %a
%c = trunc <8 x i64> %b to <8 x i32>
ret <8 x i32> %c
}