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; RUN: llc < %s | FileCheck %s
target triple = "i686-pc-win32"
declare i32 @llvm.x86.flags.read.u32()
declare void @llvm.x86.flags.write.u32(i32)
define i32 @read_flags() {
entry:
%flags = call i32 @llvm.x86.flags.read.u32()
ret i32 %flags
}
; CHECK-LABEL: _read_flags:
; CHECK: pushl %ebp
; CHECK-NEXT: movl %esp, %ebp
; CHECK-NEXT: pushfl
; CHECK-NEXT: popl %eax
; CHECK-NEXT: popl %ebp
define x86_fastcallcc void @write_flags(i32 inreg %arg) {
entry:
call void @llvm.x86.flags.write.u32(i32 %arg)
ret void
}
; CHECK-LABEL: @write_flags@4:
; CHECK: pushl %ebp
; CHECK-NEXT: movl %esp, %ebp
; CHECK-NEXT: pushl %ecx
; CHECK-NEXT: popfl
; CHECK-NEXT: popl %ebp
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