llvm-mirror/test/CodeGen/X86/extractelement-load.ll
Evan Cheng 9e15622879 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

llvm-svn: 51026
2008-05-13 08:35:03 +00:00

10 lines
428 B
LLVM

; RUN: llvm-as %s -o - | llc -march=x86 -mattr=+sse2 -mcpu=yonah | not grep movd
; RUN: llvm-as %s -o - | llc -march=x86-64 -mattr=+sse2 -mcpu=yonah | not grep movd
define i32 @t(<2 x i64>* %val) nounwind {
%tmp2 = load <2 x i64>* %val, align 16 ; <<2 x i64>> [#uses=1]
%tmp3 = bitcast <2 x i64> %tmp2 to <4 x i32> ; <<4 x i32>> [#uses=1]
%tmp4 = extractelement <4 x i32> %tmp3, i32 2 ; <i32> [#uses=1]
ret i32 %tmp4
}