1;RUN: opt < %s -passes=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 8target datalayout = "e-p:32:32" 9@str = internal constant [6 x i8] c"%llx\0A\00" ; <ptr> [#uses=1] 10 11declare i32 @printf(ptr, ...) 12 13define i32 @main(i32 %x, ptr %a) { 14entry: 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] 20 ret i32 0 21} 22 23