xref: /aosp_15_r20/external/llvm/test/CodeGen/X86/x86-64-flags-intrinsics.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58) 
1*9880d681SAndroid Build Coastguard Worker; RUN: llc -verify-machineinstrs < %s | FileCheck %s
2*9880d681SAndroid Build Coastguard Workertarget triple = "x86_64-pc-win32"
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Workerdeclare i64 @llvm.x86.flags.read.u64()
5*9880d681SAndroid Build Coastguard Workerdeclare void @llvm.x86.flags.write.u64(i64)
6*9880d681SAndroid Build Coastguard Worker
7*9880d681SAndroid Build Coastguard Workerdefine i64 @read_flags() {
8*9880d681SAndroid Build Coastguard Workerentry:
9*9880d681SAndroid Build Coastguard Worker  %flags = call i64 @llvm.x86.flags.read.u64()
10*9880d681SAndroid Build Coastguard Worker  ret i64 %flags
11*9880d681SAndroid Build Coastguard Worker}
12*9880d681SAndroid Build Coastguard Worker
13*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: read_flags:
14*9880d681SAndroid Build Coastguard Worker; CHECK:      pushq   %rbp
15*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_pushreg 5
16*9880d681SAndroid Build Coastguard Worker; CHECK:      movq    %rsp, %rbp
17*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_setframe 5, 0
18*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_endprologue
19*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: pushfq
20*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: popq    %rax
21*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: popq    %rbp
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerdefine void @write_flags(i64 %arg) {
24*9880d681SAndroid Build Coastguard Workerentry:
25*9880d681SAndroid Build Coastguard Worker  call void @llvm.x86.flags.write.u64(i64 %arg)
26*9880d681SAndroid Build Coastguard Worker  ret void
27*9880d681SAndroid Build Coastguard Worker}
28*9880d681SAndroid Build Coastguard Worker
29*9880d681SAndroid Build Coastguard Worker; CHECK-LABEL: write_flags:
30*9880d681SAndroid Build Coastguard Worker; CHECK:      pushq   %rbp
31*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_pushreg 5
32*9880d681SAndroid Build Coastguard Worker; CHECK:      movq    %rsp, %rbp
33*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_setframe 5, 0
34*9880d681SAndroid Build Coastguard Worker; CHECK:      .seh_endprologue
35*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: pushq   %rcx
36*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: popfq
37*9880d681SAndroid Build Coastguard Worker; CHECK-NEXT: popq    %rbp
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