| ; RUN: llvm-as < %s | llc -march=x86-64 | grep mov | count 1 | |
| ; Do eliminate the zero-extension instruction and rely on | |
| ; x86-64's implicit zero-extension! | |
| define i64 @foo(i32* %p) nounwind { | |
| %t = load i32* %p | |
| %n = add i32 %t, 1 | |
| %z = zext i32 %n to i64 | |
| ret i64 %z | |
| } |