1 ;RUN: opt < %s -instcombine -S | grep zext 2 3 ; Make sure the uint isn't removed. Instcombine in llvm 1.9 was dropping the 4 ; uint cast which was causing a sign extend. This only affected code with 5 ; pointers in the high half of memory, so it wasn't noticed much 6 ; compile a kernel though... 7 8 target datalayout = "e-p:32:32" 9 @str = internal constant [6 x i8] c"%llx\0A\00" ; <[6 x i8]*> [#uses=1] 10 11 declare i32 @printf(i8*, ...) 12 13 define i32 @main(i32 %x, i8** %a) { 14 entry: 15 %tmp = getelementptr [6 x i8], [6 x i8]* @str, i32 0, i64 0 ; <i8*> [#uses=1] 16 %tmp1 = load i8*, i8** %a ; <i8*> [#uses=1] 17 %tmp2 = ptrtoint i8* %tmp1 to i32 ; <i32> [#uses=1] 18 %tmp3 = zext i32 %tmp2 to i64 ; <i64> [#uses=1] 19 %tmp.upgrd.1 = call i32 (i8*, ...) @printf( i8* %tmp, i64 %tmp3 ) ; <i32> [#uses=0] 20 ret i32 0 21 } 22 23
