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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -o - %s -mtriple=x86_64--unknown-linux-gnu | FileCheck %s
; When compiled and run this should print zero.
@c = common dso_local local_unnamed_addr global i32 0, align 4
@f = common dso_local local_unnamed_addr global i32 0, align 4
@e = common dso_local local_unnamed_addr global i32 0, align 4
@.str.1 = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1
; We should only see a single store to f (a bytes store to f+3).
define dso_local void @k(i32 %l) {
; CHECK-LABEL: k:
; CHECK: # %bb.0:
; CHECK-NEXT: movl e(%rip), %eax
; CHECK-NEXT: orl f(%rip), %eax
; CHECK-NEXT: shrl $24, %eax
; CHECK-NEXT: movb %al, f+3(%rip)
; CHECK-NEXT: retq
%load = load i32, i32* @c, align 4
%load6 = load i32, i32* @f, align 4
%clear7 = and i32 %load6, 16777215
store i32 %clear7, i32* @c, align 4
%neg = and i32 %load6, 2097151
%value = xor i32 %neg, 2097151
store i32 %load, i32* @c, align 4
%t0 = load i32, i32* @e, align 4
%value15 = xor i32 %t0, %value
%clear16 = and i32 %load6, -16777216
%set17 = or i32 %value15, %clear16
store i32 %set17, i32* @f, align 4
%clear25 = and i32 %set17, -16777216
%set26 = or i32 %clear25, %clear7
store i32 %set26, i32* @f, align 4
ret void
}
declare i32 @printf(i8* nocapture readonly, ...)
define dso_local i32 @main() {
; CHECK-LABEL: main:
; CHECK: # %bb.0:
; CHECK-NEXT: pushq %rax
; CHECK-NEXT: .cfi_def_cfa_offset 16
; CHECK-NEXT: movl $1, %edi
; CHECK-NEXT: callq k
; CHECK-NEXT: movl f(%rip), %esi
; CHECK-NEXT: movl $.L.str.1, %edi
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: callq printf@PLT
; CHECK-NEXT: xorl %eax, %eax
; CHECK-NEXT: popq %rcx
; CHECK-NEXT: .cfi_def_cfa_offset 8
; CHECK-NEXT: retq
tail call void @k(i32 1)
%load = load i32, i32* @f, align 4
%call = tail call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %load)
ret i32 0
}
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