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; RUN: llc < %s -mtriple=i686-pc-windows-msvc | FileCheck %s -check-prefix=X86
; RUN: llc < %s -mtriple=x86_64-pc-windows-msvc | FileCheck %s -check-prefixes=X64
; Control Flow Guard is currently only available on Windows
; funclets only supported in MSVC env.
; Test that Control Flow Guard Checks are added well for targets in try-catch.
declare i32 @target_func()
%eh.ThrowInfo = type { i32, ptr, ptr, ptr }
declare i32 @__CxxFrameHandler3(...)
declare void @_CxxThrowException(ptr, ptr)
define i32 @func_cf_exception() personality ptr @__CxxFrameHandler3 {
entry:
%func_ptr = alloca ptr, align 8
store ptr @target_func, ptr %func_ptr, align 8
invoke void @_CxxThrowException(ptr null, ptr null) #11
to label %unreachable unwind label %ehcleanup
ehcleanup:
%0 = cleanuppad within none []
%isnull = icmp eq ptr %func_ptr, null
br i1 %isnull, label %exit, label %callfn
callfn:
%1 = load ptr, ptr %func_ptr, align 8
%2 = call i32 %1() #9 [ "funclet"(token %0) ]
br label %exit
exit:
cleanupret from %0 unwind label %catch.dispatch
unreachable:
unreachable
catch.dispatch:
%3 = catchswitch within none [label %catch] unwind to caller
catch:
%4 = catchpad within %3 [ptr null, i32 64, ptr null]
catchret from %4 to label %try.cont
try.cont:
ret i32 0
; X86-LABEL: func_cf_exception
; X86: calll *___guard_check_icall_fptr
; X86-NEXT: calll *%ecx
; X64-LABEL: func_cf_exception
; X64: callq *__guard_dispatch_icall_fptr(%rip)
; X64-NOT: callq
}
!llvm.module.flags = !{!0}
!0 = !{i32 2, !"cfguard", i32 2}
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