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instcombine does memset optzns. 

llvm-svn: 50518
This commit is contained in:
Chris Lattner 2008-05-01 06:16:38 +00:00
parent 4add60753b
commit 9ad872201b
1 changed files with 0 additions and 18 deletions
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18
llvm/test/Transforms/SimplifyLibCalls/MemSet.ll
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@ -1,18 +0,0 @@
; Test that the LLVMMemSetOptimizer works correctly
; RUN: llvm-as < %s | opt -simplify-libcalls | llvm-dis | \
; RUN: not grep {call.*llvm.memset}
; END.
declare void @llvm.memset.i32(i8*, i8, i32, i32)
define i32 @main() {
%target = alloca [1024 x i8] ; <[1024 x i8]*> [#uses=1]
%target_p = getelementptr [1024 x i8]* %target, i32 0, i32 0 ; <i8*> [#uses=5]
call void @llvm.memset.i32( i8* %target_p, i8 1, i32 0, i32 1 )
call void @llvm.memset.i32( i8* %target_p, i8 1, i32 1, i32 1 )
call void @llvm.memset.i32( i8* %target_p, i8 1, i32 2, i32 2 )
call void @llvm.memset.i32( i8* %target_p, i8 1, i32 4, i32 4 )
call void @llvm.memset.i32( i8* %target_p, i8 1, i32 8, i32 8 )
ret i32 0
}