96 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
			
		
		
	
	
			96 lines
		
	
	
		
			2.5 KiB
		
	
	
	
		
			LLVM
		
	
	
	
| ; RUN: llc -mtriple=x86_64-windows-msvc < %s | FileCheck %s
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| 
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| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
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| target triple = "x86_64-pc-windows-msvc"
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| 
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| define void @"\01?f@@YAXXZ"(i1 %B) personality i32 (...)* @__CxxFrameHandler3 {
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| entry:
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|   invoke void @g()
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|           to label %unreachable unwind label %cleanupblock
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| 
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| cleanupblock:
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|   %cleanp = cleanuppad within none []
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|   call void @g() [ "funclet"(token %cleanp) ]
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|   cleanupret from %cleanp unwind label %catch.dispatch
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| 
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| catch.dispatch:
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|   %cs1 = catchswitch within none [label %catch] unwind to caller
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| 
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| catch:
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|   %cp = catchpad within %cs1 [i8* null, i32 64, i8* null]
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|   call void @g() [ "funclet"(token %cp) ]
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|   catchret from %cp to label %try.cont
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| 
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| try.cont:
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|   ret void
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| 
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| unreachable:
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|   unreachable
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| }
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| 
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| 
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| declare void @g()
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| 
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| declare i32 @__CxxFrameHandler3(...)
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| 
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| ; Destructors need CFI but they shouldn't use the .seh_handler directive.
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| ; CHECK: "?dtor$[[cleanup:[0-9]+]]@?0??f@@YAXXZ@4HA":
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| ; CHECK: .seh_proc "?dtor$[[cleanup]]@?0??f@@YAXXZ@4HA"
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| ; CHECK-NOT: .seh_handler __CxxFrameHandler3
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| ; CHECK: LBB0_[[cleanup]]: # %cleanupblock{{$}}
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| 
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| ; Emit CFI for pushing RBP.
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| ; CHECK: movq    %rdx, 16(%rsp)
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| ; CHECK: pushq   %rbp
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| ; CHECK: .seh_pushreg %rbp
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| 
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| ; Emit CFI for allocating from the stack pointer.
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| ; CHECK: subq    $32, %rsp
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| ; CHECK: .seh_stackalloc 32
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| 
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| ; CHECK: leaq    48(%rdx), %rbp
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| ; CHECK-NOT: .seh_setframe
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| 
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| ; Prologue is done, emit the .seh_endprologue directive.
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| ; CHECK: .seh_endprologue
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| 
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| ; Make sure there is a nop after a call if the call precedes the epilogue.
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| ; CHECK: callq g
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| ; CHECK-NEXT: nop
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| 
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| ; Don't emit a reference to the LSDA.
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| ; CHECK: .seh_handlerdata
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| ; CHECK-NOT:  .long   ("$cppxdata$?f@@YAXXZ")@IMGREL
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| ; CHECK-NEXT: .text
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| ; CHECK: .seh_endproc
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| 
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| ; CHECK: "?catch$[[catch:[0-9]+]]@?0??f@@YAXXZ@4HA":
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| ; CHECK: .seh_proc "?catch$[[catch]]@?0??f@@YAXXZ@4HA"
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| ; CHECK-NEXT: .seh_handler __CxxFrameHandler3, @unwind, @except
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| ; CHECK: LBB0_[[catch]]: # %catch{{$}}
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| 
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| ; Emit CFI for pushing RBP.
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| ; CHECK: movq    %rdx, 16(%rsp)
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| ; CHECK: pushq   %rbp
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| ; CHECK: .seh_pushreg %rbp
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| 
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| ; Emit CFI for allocating from the stack pointer.
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| ; CHECK: subq    $32, %rsp
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| ; CHECK: .seh_stackalloc 32
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| 
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| ; CHECK: leaq    48(%rdx), %rbp
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| ; CHECK-NOT: .seh_setframe
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| 
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| ; Prologue is done, emit the .seh_endprologue directive.
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| ; CHECK: .seh_endprologue
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| 
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| ; Make sure there is at least one instruction after a call before the epilogue.
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| ; CHECK: callq g
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| ; CHECK-NEXT: leaq    .LBB0_{{[0-9]+}}(%rip), %rax
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| 
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| ; Emit a reference to the LSDA.
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| ; CHECK: .seh_handlerdata
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| ; CHECK-NEXT:  .long   ("$cppxdata$?f@@YAXXZ")@IMGREL
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| ; CHECK-NEXT: .text
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| ; CHECK: .seh_endproc
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