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; Test that the StrChrOptimizer works correctly
; RUN: opt %s -simplify-libcalls -S | \
; RUN: not grep {call.*@strchr}
; This transformation requires the pointer size, as it assumes that size_t is
; the size of a pointer.
target datalayout = "-p:64:64:64"
@hello = constant [14 x i8] c"hello world\5Cn\00" ; <[14 x i8]*> [#uses=1]
@null = constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1]
declare i8* @strchr(i8*, i32)
declare i32 @puts(i8*)
define i32 @main() {
%hello_p = getelementptr [14 x i8]* @hello, i32 0, i32 0 ; <i8*> [#uses=2]
%null_p = getelementptr [1 x i8]* @null, i32 0, i32 0 ; <i8*> [#uses=1]
%world = call i8* @strchr( i8* %hello_p, i32 119 ) ; <i8*> [#uses=1]
%ignore = call i8* @strchr( i8* %null_p, i32 119 ) ; <i8*> [#uses=0]
%len = call i32 @puts( i8* %world ) ; <i32> [#uses=1]
%index = add i32 %len, 112 ; <i32> [#uses=2]
%result = call i8* @strchr( i8* %hello_p, i32 %index ) ; <i8*> [#uses=0]
ret i32 %index
}
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