llvm-6502/test/CodeGen/X86/vshift-4.ll
Simon Pilgrim ab18d0e7cb [X86][SSE] Avoid scalarization of v2i64 vector shifts (REAPPLIED)
Fixed broken tests.

Differential Revision: http://reviews.llvm.org/D8416

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232682 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-18 22:18:51 +00:00

91 lines
3.0 KiB
LLVM

; RUN: llc < %s -march=x86 -mcpu=core2 | FileCheck %s
; test vector shifts converted to proper SSE2 vector shifts when the shift
; amounts are the same when using a shuffle splat.
define void @shift1a(<2 x i64> %val, <2 x i64>* %dst, <2 x i64> %sh) nounwind {
entry:
; CHECK-LABEL: shift1a:
; CHECK: psllq
%shamt = shufflevector <2 x i64> %sh, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
%shl = shl <2 x i64> %val, %shamt
store <2 x i64> %shl, <2 x i64>* %dst
ret void
}
; shift1b can't use a packed shift but can shift lanes separately and shuffle back together
define void @shift1b(<2 x i64> %val, <2 x i64>* %dst, <2 x i64> %sh) nounwind {
entry:
; CHECK-LABEL: shift1b:
; CHECK: pshufd {{.*#+}} xmm2 = xmm1[2,3,0,1]
; CHECK-NEXT: movdqa %xmm0, %xmm3
; CHECK-NEXT: psllq %xmm2, %xmm3
; CHECK-NEXT: movq {{.*#+}} xmm1 = xmm1[0],zero
; CHECK-NEXT: psllq %xmm1, %xmm0
; CHECK-NEXT: movsd {{.*#+}} xmm3 = xmm0[0],xmm3[1]
%shamt = shufflevector <2 x i64> %sh, <2 x i64> undef, <2 x i32> <i32 0, i32 1>
%shl = shl <2 x i64> %val, %shamt
store <2 x i64> %shl, <2 x i64>* %dst
ret void
}
define void @shift2a(<4 x i32> %val, <4 x i32>* %dst, <2 x i32> %amt) nounwind {
entry:
; CHECK-LABEL: shift2a:
; CHECK: pslld
%shamt = shufflevector <2 x i32> %amt, <2 x i32> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
%shl = shl <4 x i32> %val, %shamt
store <4 x i32> %shl, <4 x i32>* %dst
ret void
}
define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, <2 x i32> %amt) nounwind {
entry:
; CHECK-LABEL: shift2b:
; CHECK: pslld
%shamt = shufflevector <2 x i32> %amt, <2 x i32> undef, <4 x i32> <i32 1, i32 undef, i32 1, i32 1>
%shl = shl <4 x i32> %val, %shamt
store <4 x i32> %shl, <4 x i32>* %dst
ret void
}
define void @shift2c(<4 x i32> %val, <4 x i32>* %dst, <2 x i32> %amt) nounwind {
entry:
; CHECK-LABEL: shift2c:
; CHECK: pslld
%shamt = shufflevector <2 x i32> %amt, <2 x i32> undef, <4 x i32> <i32 1, i32 1, i32 1, i32 1>
%shl = shl <4 x i32> %val, %shamt
store <4 x i32> %shl, <4 x i32>* %dst
ret void
}
define void @shift3a(<8 x i16> %val, <8 x i16>* %dst, <8 x i16> %amt) nounwind {
entry:
; CHECK-LABEL: shift3a:
; CHECK: pextrw $6
; CHECK: psllw
%shamt = shufflevector <8 x i16> %amt, <8 x i16> undef, <8 x i32> <i32 6, i32 6, i32 6, i32 6, i32 6, i32 6, i32 6, i32 6>
%shl = shl <8 x i16> %val, %shamt
store <8 x i16> %shl, <8 x i16>* %dst
ret void
}
define void @shift3b(<8 x i16> %val, <8 x i16>* %dst, i16 %amt) nounwind {
entry:
; CHECK-LABEL: shift3b:
; CHECK: movzwl
; CHECK: psllw
%0 = insertelement <8 x i16> undef, i16 %amt, i32 0
%1 = insertelement <8 x i16> %0, i16 %amt, i32 1
%2 = insertelement <8 x i16> %1, i16 %amt, i32 2
%3 = insertelement <8 x i16> %2, i16 %amt, i32 3
%4 = insertelement <8 x i16> %3, i16 %amt, i32 4
%5 = insertelement <8 x i16> %4, i16 %amt, i32 5
%6 = insertelement <8 x i16> %5, i16 %amt, i32 6
%7 = insertelement <8 x i16> %6, i16 %amt, i32 7
%shl = shl <8 x i16> %val, %7
store <8 x i16> %shl, <8 x i16>* %dst
ret void
}