zext-trunc.ll
398 Bytes
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown | FileCheck %s
; rdar://7570931
define i64 @foo(i64 %a, i64 %b) nounwind {
; CHECK-LABEL: foo:
; CHECK: # %bb.0:
; CHECK-NEXT: leal (%rdi,%rsi), %eax
; CHECK-NEXT: retq
%c = add i64 %a, %b
%d = trunc i64 %c to i32
%e = zext i32 %d to i64
ret i64 %e
}