llvm-6502/test/CodeGen/X86/sse-align-12.ll
Evan Cheng 77f0b7a50a Instead of a vector load, shuffle and then extract an element. Load the element from address with an offset.
pshufd $1, (%rdi), %xmm0
        movd %xmm0, %eax
=>
        movl 4(%rdi), %eax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-13 08:35:03 +00:00

47 lines
1.9 KiB
LLVM

; RUN: llvm-as < %s | llc -march=x86-64 | grep unpck | count 2
; RUN: llvm-as < %s | llc -march=x86-64 | grep shuf | count 2
; RUN: llvm-as < %s | llc -march=x86-64 | grep ps | count 4
; RUN: llvm-as < %s | llc -march=x86-64 | grep pd | count 4
; RUN: llvm-as < %s | llc -march=x86-64 | grep movup | count 4
define <4 x float> @a(<4 x float>* %y) nounwind {
%x = load <4 x float>* %y, align 4
%a = extractelement <4 x float> %x, i32 0
%b = extractelement <4 x float> %x, i32 1
%c = extractelement <4 x float> %x, i32 2
%d = extractelement <4 x float> %x, i32 3
%p = insertelement <4 x float> undef, float %d, i32 0
%q = insertelement <4 x float> %p, float %c, i32 1
%r = insertelement <4 x float> %q, float %b, i32 2
%s = insertelement <4 x float> %r, float %a, i32 3
ret <4 x float> %s
}
define <4 x float> @b(<4 x float>* %y, <4 x float> %z) nounwind {
%x = load <4 x float>* %y, align 4
%a = extractelement <4 x float> %x, i32 2
%b = extractelement <4 x float> %x, i32 3
%c = extractelement <4 x float> %z, i32 2
%d = extractelement <4 x float> %z, i32 3
%p = insertelement <4 x float> undef, float %c, i32 0
%q = insertelement <4 x float> %p, float %a, i32 1
%r = insertelement <4 x float> %q, float %d, i32 2
%s = insertelement <4 x float> %r, float %b, i32 3
ret <4 x float> %s
}
define <2 x double> @c(<2 x double>* %y) nounwind {
%x = load <2 x double>* %y, align 8
%a = extractelement <2 x double> %x, i32 0
%c = extractelement <2 x double> %x, i32 1
%p = insertelement <2 x double> undef, double %c, i32 0
%r = insertelement <2 x double> %p, double %a, i32 1
ret <2 x double> %r
}
define <2 x double> @d(<2 x double>* %y, <2 x double> %z) nounwind {
%x = load <2 x double>* %y, align 8
%a = extractelement <2 x double> %x, i32 1
%c = extractelement <2 x double> %z, i32 1
%p = insertelement <2 x double> undef, double %c, i32 0
%r = insertelement <2 x double> %p, double %a, i32 1
ret <2 x double> %r
}