1 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2 ; RUN: llc < %s | FileCheck %s
4 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
5 target triple = "x86_64-apple-macosx10.12.0"
7 @a = common local_unnamed_addr global i16 0, align 4
8 @b = common local_unnamed_addr global i16 0, align 4
10 define i32 @PR32420() {
11 ; CHECK-LABEL: PR32420:
13 ; CHECK-NEXT: movq _a@{{.*}}(%rip), %rax
14 ; CHECK-NEXT: movzwl (%rax), %eax
15 ; CHECK-NEXT: movl %eax, %ecx
16 ; CHECK-NEXT: shll $12, %ecx
17 ; CHECK-NEXT: sarw $12, %cx
18 ; CHECK-NEXT: movq _b@{{.*}}(%rip), %rdx
19 ; CHECK-NEXT: movl %ecx, %esi
20 ; CHECK-NEXT: orw (%rdx), %si
21 ; CHECK-NEXT: andl %ecx, %esi
22 ; CHECK-NEXT: movw %si, (%rdx)
24 %load2 = load i16, i16* @a, align 4
25 %shl3 = shl i16 %load2, 12
26 %ashr4 = ashr i16 %shl3, 12
27 %t2 = load volatile i16, i16* @b, align 4
28 %conv8 = or i16 %t2, %ashr4
29 %load9 = load i16, i16* @a, align 4
30 %shl10 = shl i16 %load9, 12
31 %ashr11 = ashr i16 %shl10, 12
32 %and = and i16 %conv8, %ashr11
33 store i16 %and, i16* @b, align 4
34 %cast1629 = zext i16 %load2 to i32