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TheRock/compiler/amd-llvm/llvm/test/CodeGen/X86/win-funclet-cfi.ll
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derek.holloway 7502bf64a4
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

98 lines
2.6 KiB
LLVM

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