llvm-6502/test/Transforms/SimplifyLibCalls/2009-05-30-memcmp-byte.ll
Chris Lattner 0e98e4d299 fix PR4284, a bug in simplifylibcalls handling memcmp. Patch by
Benjamin Kramer!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72625 91177308-0d34-0410-b5e6-96231b3b80d8
2009-05-30 18:43:04 +00:00

15 lines
396 B
LLVM

; RUN: llvm-as < %s | opt -simplify-libcalls -instcombine | llvm-dis | grep {ret i32 -65}
; PR4284
define i32 @test() nounwind {
entry:
%c0 = alloca i8, align 1 ; <i8*> [#uses=2]
%c2 = alloca i8, align 1 ; <i8*> [#uses=2]
store i8 64, i8* %c0
store i8 -127, i8* %c2
%call = call i32 @memcmp(i8* %c0, i8* %c2, i32 1) ; <i32> [#uses=1]
ret i32 %call
}
declare i32 @memcmp(i8*, i8*, i32)