vshift-4.ll
6.82 KB
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=i686-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X32
; RUN: llc < %s -mtriple=x86_64-unknown -mattr=+sse2 | FileCheck %s --check-prefix=CHECK --check-prefix=X64
; 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 {
; X32-LABEL: shift1a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: psllq %xmm1, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift1a:
; X64: # %bb.0: # %entry
; X64-NEXT: psllq %xmm1, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift1b:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: movdqa %xmm0, %xmm2
; X32-NEXT: psllq %xmm1, %xmm2
; X32-NEXT: pshufd {{.*#+}} xmm1 = xmm1[2,3,0,1]
; X32-NEXT: psllq %xmm1, %xmm0
; X32-NEXT: movsd {{.*#+}} xmm0 = xmm2[0],xmm0[1]
; X32-NEXT: movapd %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift1b:
; X64: # %bb.0: # %entry
; X64-NEXT: movdqa %xmm0, %xmm2
; X64-NEXT: psllq %xmm1, %xmm2
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm1[2,3,0,1]
; X64-NEXT: psllq %xmm1, %xmm0
; X64-NEXT: movsd {{.*#+}} xmm0 = xmm2[0],xmm0[1]
; X64-NEXT: movapd %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift2a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X32-NEXT: xorps %xmm2, %xmm2
; X32-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X32-NEXT: pslld %xmm2, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift2a:
; X64: # %bb.0: # %entry
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X64-NEXT: xorps %xmm2, %xmm2
; X64-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X64-NEXT: pslld %xmm2, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift2b:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X32-NEXT: xorps %xmm2, %xmm2
; X32-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X32-NEXT: pslld %xmm2, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift2b:
; X64: # %bb.0: # %entry
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X64-NEXT: xorps %xmm2, %xmm2
; X64-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X64-NEXT: pslld %xmm2, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift2c:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X32-NEXT: xorps %xmm2, %xmm2
; X32-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X32-NEXT: pslld %xmm2, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift2c:
; X64: # %bb.0: # %entry
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm1[1,1,2,3]
; X64-NEXT: xorps %xmm2, %xmm2
; X64-NEXT: movss {{.*#+}} xmm2 = xmm1[0],xmm2[1,2,3]
; X64-NEXT: pslld %xmm2, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift3a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: pshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
; X32-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm1[0,1]
; X32-NEXT: psrldq {{.*#+}} xmm1 = xmm1[14,15],zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero
; X32-NEXT: psllw %xmm1, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift3a:
; X64: # %bb.0: # %entry
; X64-NEXT: pshufd {{.*#+}} xmm1 = xmm1[3,1,2,3]
; X64-NEXT: pslldq {{.*#+}} xmm1 = zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,xmm1[0,1]
; X64-NEXT: psrldq {{.*#+}} xmm1 = xmm1[14,15],zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero,zero
; X64-NEXT: psllw %xmm1, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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 {
; X32-LABEL: shift3b:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: movzwl {{[0-9]+}}(%esp), %ecx
; X32-NEXT: movd %ecx, %xmm1
; X32-NEXT: psllw %xmm1, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift3b:
; X64: # %bb.0: # %entry
; X64-NEXT: movzwl %si, %eax
; X64-NEXT: movd %eax, %xmm1
; X64-NEXT: psllw %xmm1, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%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
}