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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s | FileCheck %s
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.12.0"
@a = common local_unnamed_addr global i16 0, align 4
@b = common local_unnamed_addr global i16 0, align 4
define i32 @PR32420() {
; CHECK-LABEL: PR32420:
; CHECK: ## %bb.0:
; CHECK-NEXT: movq _a@{{.*}}(%rip), %rcx
; CHECK-NEXT: movzwl (%rcx), %eax
; CHECK-NEXT: movl %eax, %edx
; CHECK-NEXT: shll $12, %edx
; CHECK-NEXT: movswl %dx, %edx
; CHECK-NEXT: shrl $12, %edx
; CHECK-NEXT: movq _b@{{.*}}(%rip), %rsi
; CHECK-NEXT: orw (%rsi), %dx
; CHECK-NEXT: movl (%rcx), %ecx
; CHECK-NEXT: shll $12, %ecx
; CHECK-NEXT: movswl %cx, %ecx
; CHECK-NEXT: shrl $12, %ecx
; CHECK-NEXT: andl %edx, %ecx
; CHECK-NEXT: movw %cx, (%rsi)
; CHECK-NEXT: retq
%load2 = load i16, i16* @a, align 4
%shl3 = shl i16 %load2, 12
%ashr4 = ashr i16 %shl3, 12
%t2 = load volatile i16, i16* @b, align 4
%conv8 = or i16 %t2, %ashr4
%load9 = load i16, i16* @a, align 4
%shl10 = shl i16 %load9, 12
%ashr11 = ashr i16 %shl10, 12
%and = and i16 %conv8, %ashr11
store i16 %and, i16* @b, align 4
%cast1629 = zext i16 %load2 to i32
ret i32 %cast1629
}
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