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