1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py 2; RUN: llc < %s -mtriple=x86_64-- -verify-machineinstrs | FileCheck %s 3 4; rdar://9692967 5 6define void @t1(ptr %p, i32 %b) nounwind { 7; CHECK-LABEL: t1: 8; CHECK: # %bb.0: # %entry 9; CHECK-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) 10; CHECK-NEXT: movl $2147483648, %eax # imm = 0x80000000 11; CHECK-NEXT: lock orq %rax, (%rdi) 12; CHECK-NEXT: retq 13entry: 14 %p.addr = alloca ptr, align 8 15 store ptr %p, ptr %p.addr, align 8 16 %tmp = load ptr, ptr %p.addr, align 8 17 %0 = atomicrmw or ptr %tmp, i64 2147483648 seq_cst 18 ret void 19} 20 21define void @t2(ptr %p, i32 %b) nounwind { 22; CHECK-LABEL: t2: 23; CHECK: # %bb.0: # %entry 24; CHECK-NEXT: movq %rdi, -{{[0-9]+}}(%rsp) 25; CHECK-NEXT: lock orq $2147483644, (%rdi) # imm = 0x7FFFFFFC 26; CHECK-NEXT: retq 27entry: 28 %p.addr = alloca ptr, align 8 29 store ptr %p, ptr %p.addr, align 8 30 %tmp = load ptr, ptr %p.addr, align 8 31 %0 = atomicrmw or ptr %tmp, i64 2147483644 seq_cst 32 ret void 33} 34