1 ;RUN: opt < %s -passes=instcombine -S | grep zext
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...
8 target datalayout = "e-p:32:32"
9 @str = internal constant [6 x i8] c"%llx\0A\00" ; <ptr> [#uses=1]
11 declare i32 @printf(ptr, ...)
13 define i32 @main(i32 %x, ptr %a) {
15 %tmp = getelementptr [6 x i8], ptr @str, i32 0, i64 0 ; <ptr> [#uses=1]
16 %tmp1 = load ptr, ptr %a ; <ptr> [#uses=1]
17 %tmp2 = ptrtoint ptr %tmp1 to i32 ; <i32> [#uses=1]
18 %tmp3 = zext i32 %tmp2 to i64 ; <i64> [#uses=1]
19 %tmp.upgrd.1 = call i32 (ptr, ...) @printf( ptr %tmp, i64 %tmp3 ) ; <i32> [#uses=0]