seh_funclet_x1.ll
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; RUN: llc -o - %s -verify-machineinstrs -mtriple=aarch64-windows | FileCheck %s
; Windows runtime passes the establisher frame as the second argument to the
; termination handler. Check that we copy it into fp.
; CHECK: ?dtor$3@?0?main@4HA":
; CHECK: .seh_proc "?dtor$3@?0?main@4HA"
; CHECK: stp x29, x30, [sp, #-16]! ; 16-byte Folded Spill
; CHECK-NEXT: .seh_save_fplr_x 16
; CHECK-NEXT: .seh_endprologue
; CHECK-NEXT: mov x29, x1
target datalayout = "e-m:w-p:64:64-i32:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-windows-msvc19.15.26732"
; Function Attrs: noinline nounwind optnone uwtable
define dso_local i32 @main() #0 personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
entry:
%retval = alloca i32, align 4
%Counter = alloca i32, align 4
%__exception_code = alloca i32, align 4
call void (...) @llvm.localescape(i32* %Counter)
store i32 0, i32* %retval, align 4
store i32 0, i32* %Counter, align 4
%call = invoke i32 bitcast (i32 (...)* @RaiseStatus to i32 (i32)*)(i32 -1073741675) #3
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %entry
%0 = call i8* @llvm.localaddress()
invoke void @"?fin$0@0@main@@"(i8 0, i8* %0) #3
to label %invoke.cont1 unwind label %catch.dispatch
invoke.cont1: ; preds = %invoke.cont
br label %__try.cont
ehcleanup: ; preds = %entry
%1 = cleanuppad within none []
%2 = call i8* @llvm.localaddress()
invoke void @"?fin$0@0@main@@"(i8 1, i8* %2) #3 [ "funclet"(token %1) ]
to label %invoke.cont2 unwind label %catch.dispatch
invoke.cont2: ; preds = %ehcleanup
cleanupret from %1 unwind label %catch.dispatch
catch.dispatch: ; preds = %invoke.cont2, %ehcleanup, %invoke.cont
%3 = catchswitch within none [label %__except] unwind to caller
__except: ; preds = %catch.dispatch
%4 = catchpad within %3 [i8* null]
catchret from %4 to label %__except3
__except3: ; preds = %__except
%5 = call i32 @llvm.eh.exceptioncode(token %4)
store i32 %5, i32* %__exception_code, align 4
%6 = load i32, i32* %Counter, align 4
%add = add nsw i32 %6, 5
store i32 %add, i32* %Counter, align 4
br label %__try.cont
__try.cont: ; preds = %__except3, %invoke.cont1
%7 = load i32, i32* %retval, align 4
ret i32 %7
}
define internal void @"?fin$0@0@main@@"(i8 %abnormal_termination, i8* %frame_pointer) {
entry:
%frame_pointer.addr = alloca i8*, align 8
%abnormal_termination.addr = alloca i8, align 1
%0 = call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %frame_pointer, i32 0)
%Counter = bitcast i8* %0 to i32*
store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
store i8 %abnormal_termination, i8* %abnormal_termination.addr, align 1
store i32 3, i32* %Counter, align 4
call void @"?fin$1@0@main@@"(i8 0, i8* %frame_pointer)
%1 = load i32, i32* %Counter, align 4
%add = add nsw i32 %1, 2
store i32 %add, i32* %Counter, align 4
%call = call i32 bitcast (i32 (...)* @RaiseStatus to i32 (i32)*)(i32 -1073741675)
ret void
}
; Function Attrs: nounwind readnone
declare i8* @llvm.localrecover(i8*, i8*, i32) #1
define internal void @"?fin$1@0@main@@"(i8 %abnormal_termination, i8* %frame_pointer) {
entry:
%frame_pointer.addr = alloca i8*, align 8
%abnormal_termination.addr = alloca i8, align 1
%0 = call i8* @llvm.localrecover(i8* bitcast (i32 ()* @main to i8*), i8* %frame_pointer, i32 0)
%Counter = bitcast i8* %0 to i32*
store i8* %frame_pointer, i8** %frame_pointer.addr, align 8
store i8 %abnormal_termination, i8* %abnormal_termination.addr, align 1
%1 = load i32, i32* %Counter, align 4
%cmp = icmp eq i32 %1, 3
br i1 %cmp, label %if.then, label %if.end
if.then: ; preds = %entry
%2 = load i32, i32* %Counter, align 4
%add = add nsw i32 %2, 1
store i32 %add, i32* %Counter, align 4
br label %if.end
if.end: ; preds = %if.then, %entry
ret void
}
declare dso_local i32 @RaiseStatus(...)
declare dso_local i32 @__C_specific_handler(...)
; Function Attrs: nounwind readnone
declare i8* @llvm.localaddress() #1
; Function Attrs: nounwind readnone
declare i32 @llvm.eh.exceptioncode(token) #1
; Function Attrs: nounwind
declare void @llvm.localescape(...) #2
attributes #0 = { noinline nounwind optnone uwtable }
attributes #1 = { nounwind readnone }
attributes #2 = { nounwind }
attributes #3 = { noinline }