1 ; RUN: llc -verify-machineinstrs < %s | FileCheck %s 2 target triple = "x86_64-pc-win32" 3 4 declare i64 @llvm.x86.flags.read.u64() 5 declare void @llvm.x86.flags.write.u64(i64) 6 7 define i64 @read_flags() { 8 entry: 9 %flags = call i64 @llvm.x86.flags.read.u64() 10 ret i64 %flags 11 } 12 13 ; CHECK-LABEL: read_flags: 14 ; CHECK: pushq %rbp 15 ; CHECK: .seh_pushreg 5 16 ; CHECK: movq %rsp, %rbp 17 ; CHECK: .seh_setframe 5, 0 18 ; CHECK: .seh_endprologue 19 ; CHECK-NEXT: pushfq 20 ; CHECK-NEXT: popq %rax 21 ; CHECK-NEXT: popq %rbp 22 23 define void @write_flags(i64 %arg) { 24 entry: 25 call void @llvm.x86.flags.write.u64(i64 %arg) 26 ret void 27 } 28 29 ; CHECK-LABEL: write_flags: 30 ; CHECK: pushq %rbp 31 ; CHECK: .seh_pushreg 5 32 ; CHECK: movq %rsp, %rbp 33 ; CHECK: .seh_setframe 5, 0 34 ; CHECK: .seh_endprologue 35 ; CHECK-NEXT: pushq %rcx 36 ; CHECK-NEXT: popfq 37 ; CHECK-NEXT: popq %rbp 38
