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llvm-project/llvm/test/CodeGen/X86/seh-catchpad.ll

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; RUN: llc < %s | FileCheck %s
; Based on the source:
; extern "C" int puts(const char *);
; extern "C" int printf(const char *, ...);
; extern "C" int do_div(int a, int b) { return a / b; }
; extern "C" int filt();
; int main() {
; __try {
; __try {
; do_div(1, 0);
; } __except (1) {
; __try {
; do_div(1, 0);
; } __finally {
; puts("finally");
; }
; }
; } __except (filt()) {
; puts("caught");
; }
; return 0;
; }
; ModuleID = 't.cpp'
target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
$"\01??_C@_07MKBLAIAL@finally?$AA@" = comdat any
$"\01??_C@_06IBDBCMGJ@caught?$AA@" = comdat any
@"\01??_C@_07MKBLAIAL@finally?$AA@" = linkonce_odr unnamed_addr constant [8 x i8] c"finally\00", comdat, align 1
@"\01??_C@_06IBDBCMGJ@caught?$AA@" = linkonce_odr unnamed_addr constant [7 x i8] c"caught\00", comdat, align 1
; Function Attrs: nounwind readnone
define i32 @do_div(i32 %a, i32 %b) #0 {
entry:
%div = sdiv i32 %a, %b
ret i32 %div
}
define i32 @main() #1 personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) {
entry:
%call = invoke i32 @do_div(i32 1, i32 0) #4
to label %__try.cont.12 unwind label %catch.dispatch
__except.2: ; preds = %__except
%call4 = invoke i32 @do_div(i32 1, i32 0) #4
to label %invoke.cont.3 unwind label %ehcleanup
invoke.cont.3: ; preds = %__except.2
invoke fastcc void @"\01?fin$0@0@main@@"() #4
to label %__try.cont.12 unwind label %catch.dispatch.7
__except.9: ; preds = %__except.ret
%call11 = tail call i32 @puts(i8* nonnull getelementptr inbounds ([7 x i8], [7 x i8]* @"\01??_C@_06IBDBCMGJ@caught?$AA@", i64 0, i64 0))
br label %__try.cont.12
__try.cont.12: ; preds = %invoke.cont.3, %entry, %__except.9
ret i32 0
catch.dispatch: ; preds = %entry
%cs1 = catchswitch within none [label %__except] unwind label %catch.dispatch.7
__except: ; preds = %catch.dispatch
%cp1 = catchpad within %cs1 [i8* null]
catchret from %cp1 to label %__except.2
ehcleanup: ; preds = %__except.2
%cp2 = cleanuppad within none []
invoke fastcc void @"\01?fin$0@0@main@@"() #4 [ "funclet"(token %cp2) ]
to label %invoke.cont.6 unwind label %catch.dispatch.7
invoke.cont.6: ; preds = %ehcleanup
cleanupret from %cp2 unwind label %catch.dispatch.7
catch.dispatch.7:
%cs2 = catchswitch within none [label %__except.ret] unwind to caller
__except.ret: ; preds = %catch.dispatch.7
%cp3 = catchpad within %cs2 [i8* bitcast (i32 (i8*, i8*)* @"\01?filt$0@0@main@@" to i8*)]
catchret from %cp3 to label %__except.9
}
; CHECK: main: # @main
; CHECK: .seh_proc main
; CHECK: .seh_handler __C_specific_handler, @unwind, @except
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK: subq $32, %rsp
; CHECK: .seh_stackalloc 32
; CHECK: leaq 32(%rsp), %rbp
; CHECK: .seh_setframe 5, 32
; CHECK: .seh_endprologue
; CHECK: .Ltmp0:
; CHECK: movl $1, %ecx
; CHECK: xorl %edx, %edx
; CHECK: callq do_div
; CHECK: .Ltmp1:
; CHECK: .LBB1_[[epilogue:[0-9]+]]: # %__try.cont.12
; CHECK: xorl %eax, %eax
; CHECK: addq $32, %rsp
; CHECK: popq %rbp
; CHECK: retq
; CHECK: .LBB1_[[except1bb:[0-9]+]]: # %__except
; CHECK: .Ltmp2:
; CHECK: movl $1, %ecx
; CHECK: xorl %edx, %edx
; CHECK: callq do_div
; CHECK: .Ltmp3:
; CHECK: callq "?fin$0@0@main@@"
; CHECK: jmp .LBB1_[[epilogue]]
; CHECK: .LBB1_[[except2bb:[0-9]+]]: # %__except.ret
; CHECK: leaq "??_C@_06IBDBCMGJ@caught?$AA@"(%rip), %rcx
; CHECK: callq puts
; CHECK: jmp .LBB1_[[epilogue]]
; CHECK: .seh_handlerdata
; CHECK-NEXT: .Lmain$parent_frame_offset = 32
; CHECK-NEXT: .long (.Llsda_end0-.Llsda_begin0)/16
; CHECK-NEXT: .Llsda_begin0:
; CHECK-NEXT: .long .Ltmp0@IMGREL+1
; CHECK-NEXT: .long .Ltmp1@IMGREL+1
; CHECK-NEXT: .long 1
; CHECK-NEXT: .long .LBB1_[[except1bb]]@IMGREL
; CHECK-NEXT: .long .Ltmp0@IMGREL+1
; CHECK-NEXT: .long .Ltmp1@IMGREL+1
; CHECK-NEXT: .long "?filt$0@0@main@@"@IMGREL
; CHECK-NEXT: .long .LBB1_[[except2bb]]@IMGREL
; CHECK-NEXT: .long .Ltmp2@IMGREL+1
; CHECK-NEXT: .long .Ltmp3@IMGREL+1
; CHECK-NEXT: .long "?dtor$[[finbb:[0-9]+]]@?0?main@4HA"@IMGREL
; CHECK-NEXT: .long 0
; CHECK-NEXT: .long .Ltmp2@IMGREL+1
; CHECK-NEXT: .long .Ltmp3@IMGREL+1
; CHECK-NEXT: .long "?filt$0@0@main@@"@IMGREL
; CHECK-NEXT: .long .LBB1_3@IMGREL
; CHECK-NEXT: .long .Ltmp6@IMGREL+1
; CHECK-NEXT: .long .Ltmp7@IMGREL+1
; CHECK-NEXT: .long "?filt$0@0@main@@"@IMGREL
; CHECK-NEXT: .long .LBB1_3@IMGREL
; CHECK-NEXT: .Llsda_end0:
; CHECK: .text
; CHECK: .seh_endproc
; CHECK: "?dtor$[[finbb]]@?0?main@4HA":
; CHECK: .seh_proc "?dtor$[[finbb]]@?0?main@4HA"
; CHECK-NOT: .seh_handler
; CHECK: .LBB1_[[finbb]]: # %ehcleanup
; CHECK: movq %rdx, 16(%rsp)
; CHECK: pushq %rbp
; CHECK: .seh_pushreg 5
; CHECK: subq $32, %rsp
; CHECK: .seh_stackalloc 32
; CHECK: leaq 32(%rdx), %rbp
; CHECK: .seh_endprologue
; CHECK: callq "?fin$0@0@main@@"
; CHECK: nop
; CHECK: addq $32, %rsp
; CHECK: popq %rbp
; CHECK: retq
; CHECK: .seh_handlerdata
; CHECK: .seh_endproc
define internal i32 @"\01?filt$0@0@main@@"(i8* nocapture readnone %exception_pointers, i8* nocapture readnone %frame_pointer) #1 {
entry:
%call = tail call i32 @filt()
ret i32 %call
}
; CHECK: "?filt$0@0@main@@": # @"\01?filt$0@0@main@@"
; CHECK: jmp filt # TAILCALL
declare i32 @filt() #1
declare i32 @__C_specific_handler(...)
; Function Attrs: noinline nounwind
define internal fastcc void @"\01?fin$0@0@main@@"() #2 {
entry:
%call = tail call i32 @puts(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @"\01??_C@_07MKBLAIAL@finally?$AA@", i64 0, i64 0)) #5
ret void
}
; Function Attrs: nounwind
declare i32 @puts(i8* nocapture readonly) #3
attributes #0 = { nounwind readnone "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { noinline nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #3 = { nounwind "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-features"="+sse,+sse2" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #4 = { noinline }
attributes #5 = { nounwind }
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