1 ; Test that the SPrintFOptimizer works correctly 2 ; RUN: opt < %s -simplify-libcalls -S | \ 3 ; RUN: not grep {call.*sprintf} 4 5 ; This transformation requires the pointer size, as it assumes that size_t is 6 ; the size of a pointer. 7 target datalayout = "-p:64:64:64" 8 9 @hello = constant [6 x i8] c"hello\00" ; <[6 x i8]*> [#uses=1] 10 @null = constant [1 x i8] zeroinitializer ; <[1 x i8]*> [#uses=1] 11 @null_hello = constant [7 x i8] c"\00hello\00" ; <[7 x i8]*> [#uses=1] 12 @fmt1 = constant [3 x i8] c"%s\00" ; <[3 x i8]*> [#uses=1] 13 @fmt2 = constant [3 x i8] c"%c\00" ; <[3 x i8]*> [#uses=1] 14 15 declare i32 @sprintf(i8*, i8*, ...) 16 17 declare i32 @puts(i8*) 18 19 define i32 @foo(i8* %p) { 20 %target = alloca [1024 x i8] ; <[1024 x i8]*> [#uses=1] 21 %target_p = getelementptr [1024 x i8]* %target, i32 0, i32 0 ; <i8*> [#uses=7] 22 %hello_p = getelementptr [6 x i8]* @hello, i32 0, i32 0 ; <i8*> [#uses=2] 23 %null_p = getelementptr [1 x i8]* @null, i32 0, i32 0 ; <i8*> [#uses=1] 24 %nh_p = getelementptr [7 x i8]* @null_hello, i32 0, i32 0 ; <i8*> [#uses=1] 25 %fmt1_p = getelementptr [3 x i8]* @fmt1, i32 0, i32 0 ; <i8*> [#uses=2] 26 %fmt2_p = getelementptr [3 x i8]* @fmt2, i32 0, i32 0 ; <i8*> [#uses=1] 27 store i8 0, i8* %target_p 28 %r1 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %hello_p ) ; <i32> [#uses=1] 29 %r2 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %null_p ) ; <i32> [#uses=1] 30 %r3 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %nh_p ) ; <i32> [#uses=1] 31 %r4 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %fmt1_p, i8* %hello_p ) ; <i32> [#uses=1] 32 %r4.1 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %fmt1_p, i8* %p ) ; <i32> [#uses=1] 33 %r5 = call i32 (i8*, i8*, ...)* @sprintf( i8* %target_p, i8* %fmt2_p, i32 82 ) ; <i32> [#uses=1] 34 %r6 = add i32 %r1, %r2 ; <i32> [#uses=1] 35 %r7 = add i32 %r3, %r6 ; <i32> [#uses=1] 36 %r8 = add i32 %r5, %r7 ; <i32> [#uses=1] 37 %r9 = add i32 %r8, %r4 ; <i32> [#uses=1] 38 %r10 = add i32 %r9, %r4.1 ; <i32> [#uses=1] 39 ret i32 %r10 40 } 41
