| ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py | |
| ; RUN: llc < %s -mtriple=x86_64-- | FileCheck %s | |
| ; Do eliminate the zero-extension instruction and rely on | |
| ; x86-64's implicit zero-extension! | |
| define i64 @foo(ptr %p) nounwind { | |
| ; CHECK-LABEL: foo: | |
| ; CHECK: # %bb.0: | |
| ; CHECK-NEXT: movl (%rdi), %eax | |
| ; CHECK-NEXT: incl %eax | |
| ; CHECK-NEXT: retq | |
| %t = load i32, ptr %p | |
| %n = add i32 %t, 1 | |
| %z = zext i32 %n to i64 | |
| ret i64 %z | |
| } |