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; Test that the memcmpOptimizer works correctly
; RUN: opt %s -simplify-libcalls -S | not grep {call.*memcmp}
@h = constant [2 x i8] c"h\00" ; <[2 x i8]*> [#uses=0]
@hel = constant [4 x i8] c"hel\00" ; <[4 x i8]*> [#uses=0]
@hello_u = constant [8 x i8] c"hello_u\00" ; <[8 x i8]*> [#uses=0]
declare i32 @memcmp(i8*, i8*, i32)
define void @test(i8* %P, i8* %Q, i32 %N, i32* %IP, i1* %BP) {
%A = call i32 @memcmp( i8* %P, i8* %P, i32 %N ) ; <i32> [#uses=1]
volatile store i32 %A, i32* %IP
%B = call i32 @memcmp( i8* %P, i8* %Q, i32 0 ) ; <i32> [#uses=1]
volatile store i32 %B, i32* %IP
%C = call i32 @memcmp( i8* %P, i8* %Q, i32 1 ) ; <i32> [#uses=1]
volatile store i32 %C, i32* %IP
%D = call i32 @memcmp( i8* %P, i8* %Q, i32 2 ) ; <i32> [#uses=1]
%E = icmp eq i32 %D, 0 ; <i1> [#uses=1]
volatile store i1 %E, i1* %BP
ret void
}
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