llvm-6502/test/Transforms/InstCombine/memmove.ll
Tanya Lattner f04d8d1593 Upgrade tests to not use llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 03:45:45 +00:00

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LLVM

; This test makes sure that memmove instructions are properly eliminated.
;
; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \
; RUN: not grep {call void @llvm.memmove}
@S = internal constant [33 x i8] c"panic: restorelist inconsistency\00" ; <[33 x i8]*> [#uses=1]
declare void @llvm.memmove.i32(i8*, i8*, i32, i32)
define void @test1(i8* %A, i8* %B, i32 %N) {
call void @llvm.memmove.i32( i8* %A, i8* %B, i32 0, i32 1 )
ret void
}
define void @test2(i8* %A, i32 %N) {
;; dest can't alias source since we can't write to source!
call void @llvm.memmove.i32( i8* %A, i8* getelementptr ([33 x i8]* @S, i32 0, i32 0), i32 %N, i32 1 )
ret void
}