1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
|
; RUN: llc < %s -march=x86-64 -verify-machineinstrs | FileCheck %s
; rdar://9692967
define void @t1(i64* %p, i32 %b) nounwind {
entry:
%p.addr = alloca i64*, align 8
store i64* %p, i64** %p.addr, align 8
%tmp = load i64*, i64** %p.addr, align 8
; CHECK-LABEL: t1:
; CHECK: movl $2147483648, %eax
; CHECK: lock orq %r{{.*}}, (%r{{.*}})
%0 = atomicrmw or i64* %tmp, i64 2147483648 seq_cst
ret void
}
define void @t2(i64* %p, i32 %b) nounwind {
entry:
%p.addr = alloca i64*, align 8
store i64* %p, i64** %p.addr, align 8
%tmp = load i64*, i64** %p.addr, align 8
; CHECK-LABEL: t2:
; CHECK: lock orq $2147483644, (%r{{.*}})
%0 = atomicrmw or i64* %tmp, i64 2147483644 seq_cst
ret void
}
|
