vshift-2.ll
4.43 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.
define void @shift1a(<2 x i64> %val, <2 x i64>* %dst) nounwind {
; X32-LABEL: shift1a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: psrlq $32, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift1a:
; X64: # %bb.0: # %entry
; X64-NEXT: psrlq $32, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%lshr = lshr <2 x i64> %val, < i64 32, i64 32 >
store <2 x i64> %lshr, <2 x i64>* %dst
ret void
}
define void @shift1b(<2 x i64> %val, <2 x i64>* %dst, i64 %amt) nounwind {
; X32-LABEL: shift1b:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: movq {{.*#+}} xmm1 = mem[0],zero
; X32-NEXT: psrlq %xmm1, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift1b:
; X64: # %bb.0: # %entry
; X64-NEXT: movq %rsi, %xmm1
; X64-NEXT: psrlq %xmm1, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%0 = insertelement <2 x i64> undef, i64 %amt, i32 0
%1 = insertelement <2 x i64> %0, i64 %amt, i32 1
%lshr = lshr <2 x i64> %val, %1
store <2 x i64> %lshr, <2 x i64>* %dst
ret void
}
define void @shift2a(<4 x i32> %val, <4 x i32>* %dst) nounwind {
; X32-LABEL: shift2a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: psrld $17, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift2a:
; X64: # %bb.0: # %entry
; X64-NEXT: psrld $17, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%lshr = lshr <4 x i32> %val, < i32 17, i32 17, i32 17, i32 17 >
store <4 x i32> %lshr, <4 x i32>* %dst
ret void
}
define void @shift2b(<4 x i32> %val, <4 x i32>* %dst, i32 %amt) nounwind {
; X32-LABEL: shift2b:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: movd {{.*#+}} xmm1 = mem[0],zero,zero,zero
; X32-NEXT: psrld %xmm1, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift2b:
; X64: # %bb.0: # %entry
; X64-NEXT: movd %esi, %xmm1
; X64-NEXT: psrld %xmm1, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%0 = insertelement <4 x i32> undef, i32 %amt, i32 0
%1 = insertelement <4 x i32> %0, i32 %amt, i32 1
%2 = insertelement <4 x i32> %1, i32 %amt, i32 2
%3 = insertelement <4 x i32> %2, i32 %amt, i32 3
%lshr = lshr <4 x i32> %val, %3
store <4 x i32> %lshr, <4 x i32>* %dst
ret void
}
define void @shift3a(<8 x i16> %val, <8 x i16>* %dst) nounwind {
; X32-LABEL: shift3a:
; X32: # %bb.0: # %entry
; X32-NEXT: movl {{[0-9]+}}(%esp), %eax
; X32-NEXT: psrlw $5, %xmm0
; X32-NEXT: movdqa %xmm0, (%eax)
; X32-NEXT: retl
;
; X64-LABEL: shift3a:
; X64: # %bb.0: # %entry
; X64-NEXT: psrlw $5, %xmm0
; X64-NEXT: movdqa %xmm0, (%rdi)
; X64-NEXT: retq
entry:
%lshr = lshr <8 x i16> %val, < i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5, i16 5 >
store <8 x i16> %lshr, <8 x i16>* %dst
ret void
}
; properly zero extend the shift amount
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: psrlw %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: psrlw %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
%lshr = lshr <8 x i16> %val, %7
store <8 x i16> %lshr, <8 x i16>* %dst
ret void
}