1; Test that the StrChrOptimizer works correctly 2; RUN: opt < %s -simplify-libcalls -S | FileCheck %s 3 4; This transformation requires the pointer size, as it assumes that size_t is 5; the size of a pointer. 6target datalayout = "-p:64:64:64" 7 8@hello = constant [14 x i8] c"hello world\5Cn\00" 9@null = constant [1 x i8] zeroinitializer 10 11declare i8* @strchr(i8*, i32) 12 13define i32 @foo(i32 %index) { 14 %hello_p = getelementptr [14 x i8]* @hello, i32 0, i32 0 15 %null_p = getelementptr [1 x i8]* @null, i32 0, i32 0 16 %world = call i8* @strchr(i8* %hello_p, i32 119) 17; CHECK: getelementptr i8* %hello_p, i64 6 18 %ignore = call i8* @strchr(i8* %null_p, i32 119) 19; CHECK-NOT: call i8* strchr 20 %null = call i8* @strchr(i8* %hello_p, i32 0) 21; CHECK: getelementptr i8* %hello_p, i64 13 22 %result = call i8* @strchr(i8* %hello_p, i32 %index) 23; CHECK: call i8* @memchr(i8* %hello_p, i32 %index, i64 14) 24 ret i32 %index 25} 26 27