2012-10-30 01:01:57 +01:00
|
|
|
; RUN: llc < %s -march=x86 -mattr=+avx | FileCheck %s
|
2009-02-04 02:16:59 +01:00
|
|
|
|
2012-10-30 01:01:57 +01:00
|
|
|
; CHECK: test
|
2009-02-04 02:16:59 +01:00
|
|
|
; Test case when creating pshufhw, we incorrectly set the higher order bit
|
|
|
|
; for an undef,
|
2009-09-09 01:05:44 +02:00
|
|
|
define void @test(<8 x i16>* %dest, <8 x i16> %in) nounwind {
|
2009-02-04 02:16:59 +01:00
|
|
|
entry:
|
2012-10-30 01:01:57 +01:00
|
|
|
; CHECK-NOT: vmovaps
|
|
|
|
; CHECK: vmovlpd
|
|
|
|
; CHECK: vpshufhw $-95
|
2009-02-04 02:16:59 +01:00
|
|
|
%0 = load <8 x i16>* %dest
|
|
|
|
%1 = shufflevector <8 x i16> %0, <8 x i16> %in, <8 x i32> < i32 0, i32 1, i32 2, i32 3, i32 13, i32 undef, i32 14, i32 14>
|
|
|
|
store <8 x i16> %1, <8 x i16>* %dest
|
|
|
|
ret void
|
2012-10-30 01:01:57 +01:00
|
|
|
}
|
2009-02-04 02:16:59 +01:00
|
|
|
|
2012-10-30 01:01:57 +01:00
|
|
|
; CHECK: test2
|
2009-02-04 02:16:59 +01:00
|
|
|
; A test case where we shouldn't generate a punpckldq but a pshufd and a pslldq
|
2009-09-09 01:05:44 +02:00
|
|
|
define void @test2(<4 x i32>* %dest, <4 x i32> %in) nounwind {
|
2009-02-04 02:16:59 +01:00
|
|
|
entry:
|
2012-10-30 01:01:57 +01:00
|
|
|
; CHECK-NOT: pslldq
|
|
|
|
; CHECK: shufps
|
2009-02-04 02:16:59 +01:00
|
|
|
%0 = shufflevector <4 x i32> %in, <4 x i32> <i32 0, i32 0, i32 0, i32 0>, <4 x i32> < i32 undef, i32 5, i32 undef, i32 2>
|
|
|
|
store <4 x i32> %0, <4 x i32>* %dest
|
|
|
|
ret void
|
2009-04-27 20:41:29 +02:00
|
|
|
}
|