1 ; RUN: llc < %s -march=x86-64 | FileCheck %s 2 3 ; rdar://9692967 4 5 define void @t1(i64* %p, i32 %b) nounwind { 6 entry: 7 %p.addr = alloca i64*, align 8 8 store i64* %p, i64** %p.addr, align 8 9 %tmp = load i64** %p.addr, align 8 10 ; CHECK: t1: 11 ; CHECK: movl $2147483648, %eax 12 ; CHECK: lock 13 ; CHECK-NEXT: orq %r{{.*}}, (%r{{.*}}) 14 %0 = atomicrmw or i64* %tmp, i64 2147483648 seq_cst 15 ret void 16 } 17 18 define void @t2(i64* %p, i32 %b) nounwind { 19 entry: 20 %p.addr = alloca i64*, align 8 21 store i64* %p, i64** %p.addr, align 8 22 %tmp = load i64** %p.addr, align 8 23 ; CHECK: t2: 24 ; CHECK: lock 25 ; CHECK-NEXT: orq $2147483644, (%r{{.*}}) 26 %0 = atomicrmw or i64* %tmp, i64 2147483644 seq_cst 27 ret void 28 } 29
