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llvm-6502/test/CodeGen/WinEH/cppeh-nested-3.ll
David Majnemer 0a8ff297ad [WinEH] Run cleanup handlers when an exception is thrown 
Generate tables in the .xdata section representing what actions to take
when an exception is thrown.  This currently fills in state for
cleanups, catch handlers are still unfinished.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@233636 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-30 22:58:10 +00:00

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; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
; XFAIL: *
; This test is based on the following code:
;
;void test()
;{
; try {
; try {
; may_throw();
; } catch (int i) {
; try {
; may_throw();
; }
; catch (int j) {
; i = j;
; }
; handle_int(i);
; }
; } catch (float f) {
; handle_float(f);
; }
; done();
;}
; ModuleID = 'cppeh-nested-3.cpp'
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
$"\01??_R0M@8" = comdat any
$"\01??_R0H@8" = comdat any
@"\01??_7type_info@@6B@" = external constant i8*
@"\01??_R0M@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".M\00" }, comdat
@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
; CHECK: define void @"\01?test@@YAXXZ"()
; CHECK: entry:
; CHECK: %i = alloca i32, align 4
; ------------================= FAIL here =================------------
; CHECK: %j = alloca i32, align 4
; CHECK: %f = alloca float, align 4
; ------------================= FAIL here =================------------
; CHECK: call void (...)* @llvm.frameescape(i32* %i, float* %f, int32* %j)
; CHECK: invoke void @"\01?may_throw@@YAXXZ"()
; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]]
; Function Attrs: uwtable
define void @"\01?test@@YAXXZ"() #0 {
entry:
%exn.slot = alloca i8*
%ehselector.slot = alloca i32
%i = alloca i32, align 4
%j = alloca i32, align 4
%f = alloca float, align 4
invoke void @"\01?may_throw@@YAXXZ"()
to label %invoke.cont unwind label %lpad
invoke.cont: ; preds = %entry
br label %try.cont10
; CHECK: [[LPAD_LABEL]]:
; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
; CHECK: [[RECOVER:\%.+]] = call i8* (...)* @llvm.eh.actions(i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* %i, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch" to i8*), i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* %f, i8* bitcast (i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1")
; CHECK: indirectbr i8* [[RECOVER]], [label %try.cont10, label %try.cont19]
lpad: ; preds = %entry
%0 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
%1 = extractvalue { i8*, i32 } %0, 0
store i8* %1, i8** %exn.slot
%2 = extractvalue { i8*, i32 } %0, 1
store i32 %2, i32* %ehselector.slot
br label %catch.dispatch
; CHECK-NOT: catch.dispatch:
catch.dispatch: ; preds = %lpad
%sel = load i32, i32* %ehselector.slot
%3 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3
%matches = icmp eq i32 %sel, %3
br i1 %matches, label %catch, label %catch.dispatch11
; CHECK-NOT: catch:
catch: ; preds = %catch.dispatch
%exn = load i8*, i8** %exn.slot
%4 = bitcast i32* %i to i8*
call void @llvm.eh.begincatch(i8* %exn, i8* %4) #3
invoke void @"\01?may_throw@@YAXXZ"()
to label %invoke.cont2 unwind label %lpad1
; CHECK-NOT: invoke.cont2:
invoke.cont2: ; preds = %catch
br label %try.cont
; CHECK-NOT: lpad1:
lpad1: ; preds = %catch
%5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
%6 = extractvalue { i8*, i32 } %5, 0
store i8* %6, i8** %exn.slot
%7 = extractvalue { i8*, i32 } %5, 1
store i32 %7, i32* %ehselector.slot
br label %catch.dispatch3
; CHECK-NOT: catch.dispatch3:
catch.dispatch3: ; preds = %lpad1
%sel4 = load i32, i32* %ehselector.slot
%8 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3
%matches5 = icmp eq i32 %sel4, %8
br i1 %matches5, label %catch6, label %catch.dispatch11
; CHECK-NOT: catch6:
catch6: ; preds = %catch.dispatch3
%exn7 = load i8*, i8** %exn.slot
%9 = bitcast i32* %j to i8*
call void @llvm.eh.begincatch(i8* %exn7, i8* %9) #3
%10 = load i32, i32* %j, align 4
store i32 %10, i32* %i, align 4
call void @llvm.eh.endcatch() #3
br label %try.cont
; CHECK-NOT: try.cont:
try.cont: ; preds = %catch6, %invoke.cont2
%11 = load i32, i32* %i, align 4
invoke void @"\01?handle_int@@YAXH@Z"(i32 %11)
to label %invoke.cont9 unwind label %lpad8
; CHECK-NOT: invoke.cont9:
invoke.cont9: ; preds = %try.cont
call void @llvm.eh.endcatch() #3
br label %try.cont10
try.cont10: ; preds = %invoke.cont9, %invoke.cont
br label %try.cont19
; CHECK-NOT: lpad8:
lpad8: ; preds = %try.cont
%12 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
%13 = extractvalue { i8*, i32 } %12, 0
store i8* %13, i8** %exn.slot
%14 = extractvalue { i8*, i32 } %12, 1
store i32 %14, i32* %ehselector.slot
call void @llvm.eh.endcatch() #3
br label %catch.dispatch11
; CHECK-NOT: catch.dispatch11:
catch.dispatch11: ; preds = %lpad8, %catch.dispatch3, %catch.dispatch
%sel12 = load i32, i32* %ehselector.slot
%15 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)) #3
%matches13 = icmp eq i32 %sel12, %15
br i1 %matches13, label %catch14, label %eh.resume
; CHECK-NOT: catch14:
catch14: ; preds = %catch.dispatch11
%exn15 = load i8*, i8** %exn.slot
%16 = bitcast float* %f to i8*
call void @llvm.eh.begincatch(i8* %exn15, i8* %16) #3
%17 = load float, float* %f, align 4
call void @"\01?handle_float@@YAXM@Z"(float %17)
call void @llvm.eh.endcatch() #3
br label %try.cont19
try.cont19: ; preds = %catch14, %try.cont10
call void @"\01?done@@YAXXZ"()
ret void
; CHECK-NOT: eh.resume:
eh.resume: ; preds = %lpad16, %catch.dispatch11
%exn20 = load i8*, i8** %exn.slot
%sel21 = load i32, i32* %ehselector.slot
%lpad.val = insertvalue { i8*, i32 } undef, i8* %exn20, 0
%lpad.val22 = insertvalue { i8*, i32 } %lpad.val, i32 %sel21, 1
resume { i8*, i32 } %lpad.val22
; CHECK: }
}
; CHECK: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0)
; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32*
; ------------================= FAIL here =================------------
; CHECK: [[RECOVER_F:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1)
; CHECK: [[F_PTR:\%.+]] = bitcast i8* [[RECOVER_F]] to float*
; ------------================= FAIL here =================------------
; CHECK: [[RECOVER_J:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2)
; CHECK: [[J_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32*
; CHECK: invoke void @"\01?may_throw@@YAXXZ"()
; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]*]]
;
; CHECK: invoke.cont2: ; preds = %entry
; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4
; CHECK: invoke void @"\01?handle_int@@YAXH@Z"(i32 [[TMP1]])
; CHECK: to label %invoke.cont9 unwind label %[[LPAD8_LABEL:lpad[0-9]*]]
;
; CHECK: [[LPAD1_LABEL]]:{{[ ]+}}; preds = %entry
; CHECK: [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)
; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
; ------------================= FAIL here =================------------
; CHECK: [[RECOVER1:\%.+]] = call i8* (...)* @llvm.eh.actions({ i8*, i32 } [[LPAD1_VAL]], i32 0, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32* [[J_PTR]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch2" to i8*), i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* [[F_PTR1]], i8* bitcast (i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1")
; CHECK: indirectbr i8* [[RECOVER1]], []
;
; CHECK: invoke.cont9:
; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont10)
;
; CHECK: [[LPAD8_LABEL]]:{{[ ]+}}; preds = %invoke.cont2
; CHECK: [[LPAD8_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*)
; ------------================= FAIL here =================------------
; CHECK: [[RECOVER2:\%.+]] = call i8* (...)* @llvm.eh.actions({ i8*, i32 } [[LPAD8_VAL]], i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0M@8" to i8*), float* [[F_PTR1]], i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1")
; CHECK: indirectbr i8* [[RECOVER2]], []
;
; CHECK: }
; CHECK: define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_F1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1)
; CHECK: [[F_PTR1:\%.+]] = bitcast i8* [[RECOVER_F1]] to float*
; CHECK: [[TMP2:\%.+]] = load float, float* [[F_PTR1]], align 4
; CHECK: call void @"\01?handle_float@@YAXM@Z"(float [[TMP2]])
; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont19)
; CHECK: }
; CHECK: define internal i8* @"\01?test@@YAXXZ.catch2"(i8*, i8*)
; CHECK: entry:
; ------------================= FAIL here =================------------
; SHOULD-CHECK: [[J_PTR1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2)
; CHECK: [[RECOVER_I1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0)
; CHECK: [[I_PTR1:\%.+]] = bitcast i8* [[RECOVER_I1]] to i32*
; CHECK: [[TMP3:\%.+]] = load i32, i32* [[J_PTR1]], align 4
; CHECK: store i32 [[TMP3]], i32* [[I_PTR1]]
; ------------================= FAIL here =================------------
; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ.catch", %invoke.cont2)
; CHECK: }
declare void @"\01?may_throw@@YAXXZ"() #1
declare i32 @__CxxFrameHandler3(...)
; Function Attrs: nounwind readnone
declare i32 @llvm.eh.typeid.for(i8*) #2
; Function Attrs: nounwind
declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3
; Function Attrs: nounwind
declare void @llvm.eh.endcatch() #3
declare void @"\01?handle_int@@YAXH@Z"(i32) #1
declare void @"\01?handle_float@@YAXM@Z"(float) #1
declare void @"\01?done@@YAXXZ"() #1
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #2 = { nounwind readnone }
attributes #3 = { nounwind }
!llvm.module.flags = !{!0}
!llvm.ident = !{!1}
!0 = !{i32 1, !"PIC Level", i32 2}
!1 = !{!"clang version 3.7.0 (trunk 232069) (llvm/trunk 232070)"}
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