| ; RUN: opt < %s -codegenprepare -S -mtriple=x86_64-unknown-unknown | FileCheck %s |
| target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-apple-macosx10.13.0" |
| |
| declare void @bar(i64) |
| |
| @b = global i16 0, align 2 |
| |
| ; This test case is extracted from PR38125. |
| ; %or is reachable by both a sext and zext that are going to be promoted. |
| ; It ensures correct operation on PromotedInsts. |
| |
| ; CHECK: %promoted = trunc i32 %or to i16 |
| ; CHECK-NEXT: %c = sext i16 %promoted to i64 |
| define i32 @foo(i16 %kkk) { |
| entry: |
| %t4 = load i16, i16* @b, align 2 |
| %conv4 = zext i16 %t4 to i32 |
| %or = or i16 %kkk, %t4 |
| %c = sext i16 %or to i64 |
| call void @bar(i64 %c) |
| %t5 = and i16 %or, 5 |
| %z = zext i16 %t5 to i32 |
| ret i32 %z |
| } |
