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; RUN: llc -verify-machineinstrs < %s | FileCheck %s
target triple = "x86_64-pc-win32"
declare i64 @llvm.x86.flags.read.u64()
declare void @llvm.x86.flags.write.u64(i64)
define i64 @read_flags() {
entry:
%flags = call i64 @llvm.x86.flags.read.u64()
ret i64 %flags
}
; CHECK-LABEL: read_flags:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg %rbp
; CHECK: movq %rsp, %rbp
; CHECK: .seh_setframe %rbp, 0
; CHECK: .seh_endprologue
; CHECK-NEXT: pushfq
; CHECK-NEXT: popq %rax
; CHECK-NEXT: popq %rbp
define void @write_flags(i64 %arg) {
entry:
call void @llvm.x86.flags.write.u64(i64 %arg)
ret void
}
; CHECK-LABEL: write_flags:
; CHECK: pushq %rbp
; CHECK: .seh_pushreg %rbp
; CHECK: movq %rsp, %rbp
; CHECK: .seh_setframe %rbp, 0
; CHECK: .seh_endprologue
; CHECK-NEXT: pushq %rcx
; CHECK-NEXT: popfq
; CHECK-NEXT: popq %rbp
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