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These functions should use shll, not lea.

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llvm-svn: 35203
This commit is contained in:
Chris Lattner 2007-03-20 06:01:41 +00:00
parent 1ed603c0d9
commit 10311baf63
1 changed files with 27 additions and 0 deletions
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27
test/CodeGen/X86/shift-codegen.ll Normal file
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; RUN: llvm-as < %s | llc -relocation-model=static -march=x86 | grep 'shll $3' | wc -l | grep 2
; This should produce two shll instructions, not any lea's.
target triple = "i686-apple-darwin8"
@Y = weak global i32 0 ; <i32*> [#uses=1]
@X = weak global i32 0 ; <i32*> [#uses=2]
implementation ; Functions:
define void @fn1() {
entry:
%tmp = load i32* @Y ; <i32> [#uses=1]
%tmp1 = shl i32 %tmp, 3 ; <i32> [#uses=1]
%tmp2 = load i32* @X ; <i32> [#uses=1]
%tmp3 = or i32 %tmp1, %tmp2 ; <i32> [#uses=1]
store i32 %tmp3, i32* @X
ret void
}
define i32 @fn2(i32 %X, i32 %Y) {
entry:
%tmp2 = shl i32 %Y, 3 ; <i32> [#uses=1]
%tmp4 = or i32 %tmp2, %X ; <i32> [#uses=1]
ret i32 %tmp4
}