; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
; This test is based on the following code:
;
; class Inner {
; public:
; Inner();
; ~Inner();
; };
; class Outer {
; public:
; Outer();
; ~Outer();
; };
; void test() {
; try {
; Outer outer;
; try {
; Inner inner;
; may_throw();
; } catch (int i) {
; handle_int(i);
; }
; } catch (float f) {
; handle_float(f);
; }
; done();
; }
; ModuleID = 'nested-2.cpp'
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-pc-windows-msvc"
%class.Outer = type { i8 }
%class.Inner = type { i8 }
@_ZTIf = external constant i8*
@_ZTIi = external constant i8*
; The function entry should be rewritten like this.
; CHECK: define void @_Z4testv()
; CHECK: entry:
; CHECK: %outer = alloca %class.Outer, align 1
; CHECK: %inner = alloca %class.Inner, align 1
; CHECK: %i = alloca i32, align 4
; CHECK: %f = alloca float, align 4
; CHECK: call void (...) @llvm.frameescape(float* %f, i32* %i, %class.Outer* %outer, %class.Inner* %inner)
; CHECK: invoke void @_ZN5OuterC1Ev(%class.Outer* %outer)
; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]]
; Function Attrs: uwtable
define void @_Z4testv() #0 {
entry:
%outer = alloca %class.Outer, align 1
%exn.slot = alloca i8*
%ehselector.slot = alloca i32
%inner = alloca %class.Inner, align 1
%i = alloca i32, align 4
%f = alloca float, align 4
invoke void @_ZN5OuterC1Ev(%class.Outer* %outer)
to label %invoke.cont unwind label %lpad
; CHECK: invoke.cont:
; CHECK: invoke void @_ZN5InnerC1Ev(%class.Inner* %inner)
; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]*]]
invoke.cont: ; preds = %entry
invoke void @_ZN5InnerC1Ev(%class.Inner* %inner)
to label %invoke.cont2 unwind label %lpad1
; CHECK: invoke.cont2:
; CHECK: invoke void @_Z9may_throwv()
; CHECK: to label %invoke.cont4 unwind label %[[LPAD3_LABEL:lpad[0-9]*]]
invoke.cont2: ; preds = %invoke.cont
invoke void @_Z9may_throwv()
to label %invoke.cont4 unwind label %lpad3
; CHECK: invoke.cont4:
; CHECK: invoke void @_ZN5InnerD1Ev(%class.Inner* %inner)
; CHECK: to label %invoke.cont5 unwind label %[[LPAD1_LABEL]]
invoke.cont4: ; preds = %invoke.cont2
invoke void @_ZN5InnerD1Ev(%class.Inner* %inner)
to label %invoke.cont5 unwind label %lpad1
; CHECK: invoke.cont5:
; CHECK: br label %try.cont
invoke.cont5: ; preds = %invoke.cont4
br label %try.cont
; CHECK: [[LPAD_LABEL]]:
; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*)
; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont19]
lpad: ; preds = %try.cont, %entry
%tmp = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
catch i8* bitcast (i8** @_ZTIf to i8*)
%tmp1 = extractvalue { i8*, i32 } %tmp, 0
store i8* %tmp1, i8** %exn.slot
%tmp2 = extractvalue { i8*, i32 } %tmp, 1
store i32 %tmp2, i32* %ehselector.slot
br label %catch.dispatch11
; CHECK: [[LPAD1_LABEL]]:
; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK-NEXT: cleanup
; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*)
; CHECK-NEXT: [[RECOVER1:\%.+]] = call i8* (...) @llvm.eh.actions(
; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32 1, i8* (i8*, i8*)* @_Z4testv.catch1,
; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup,
; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
; CHECK-NEXT: indirectbr i8* [[RECOVER1]], [label %try.cont, label %try.cont19]
lpad1: ; preds = %invoke.cont4, %invoke.cont
%tmp3 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
cleanup
catch i8* bitcast (i8** @_ZTIi to i8*)
catch i8* bitcast (i8** @_ZTIf to i8*)
%tmp4 = extractvalue { i8*, i32 } %tmp3, 0
store i8* %tmp4, i8** %exn.slot
%tmp5 = extractvalue { i8*, i32 } %tmp3, 1
store i32 %tmp5, i32* %ehselector.slot
br label %catch.dispatch
; CHECK: [[LPAD3_LABEL]]:
; CHECK: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; CHECK-NEXT: cleanup
; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIf to i8*)
; CHECK-NEXT: [[RECOVER3:\%.+]] = call i8* (...) @llvm.eh.actions(
; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup2,
; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIi to i8*), i32 1, i8* (i8*, i8*)* @_Z4testv.catch1,
; CHECK-SAME: i32 0, void (i8*, i8*)* @_Z4testv.cleanup,
; CHECK-SAME: i32 1, i8* bitcast (i8** @_ZTIf to i8*), i32 0, i8* (i8*, i8*)* @_Z4testv.catch)
; CHECK-NEXT: indirectbr i8* [[RECOVER3]], [label %try.cont, label %try.cont19]
lpad3: ; preds = %invoke.cont2
%tmp6 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
cleanup
catch i8* bitcast (i8** @_ZTIi to i8*)
catch i8* bitcast (i8** @_ZTIf to i8*)
%tmp7 = extractvalue { i8*, i32 } %tmp6, 0
store i8* %tmp7, i8** %exn.slot
%tmp8 = extractvalue { i8*, i32 } %tmp6, 1
store i32 %tmp8, i32* %ehselector.slot
call void @_ZN5InnerD1Ev(%class.Inner* %inner)
br label %catch.dispatch
; CHECK-NOT: catch.dispatch:
catch.dispatch: ; preds = %lpad3, %lpad1
%sel = load i32, i32* %ehselector.slot
%tmp9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) #4
%matches = icmp eq i32 %sel, %tmp9
br i1 %matches, label %catch, label %ehcleanup
; CHECK-NOT: catch:
catch: ; preds = %catch.dispatch
%exn = load i8*, i8** %exn.slot
%i.i8 = bitcast i32* %i to i8*
call void @llvm.eh.begincatch(i8* %exn, i8* %i.i8) #4
%tmp13 = load i32, i32* %i, align 4
invoke void @_Z10handle_inti(i32 %tmp13)
to label %invoke.cont8 unwind label %lpad7
; CHECK-NOT: invoke.cont8:
invoke.cont8: ; preds = %catch
call void @llvm.eh.endcatch() #4
br label %try.cont
; CHECK: try.cont:
; CHECK: invoke void @_ZN5OuterD1Ev(%class.Outer* %outer)
; CHECK: to label %invoke.cont9 unwind label %[[LPAD_LABEL]]
try.cont: ; preds = %invoke.cont8, %invoke.cont5
invoke void @_ZN5OuterD1Ev(%class.Outer* %outer)
to label %invoke.cont9 unwind label %lpad
invoke.cont9: ; preds = %try.cont
br label %try.cont19
; CHECK-NOT: lpad7:
lpad7: ; preds = %catch
%tmp14 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
cleanup
catch i8* bitcast (i8** @_ZTIf to i8*)
%tmp15 = extractvalue { i8*, i32 } %tmp14, 0
store i8* %tmp15, i8** %exn.slot
%tmp16 = extractvalue { i8*, i32 } %tmp14, 1
store i32 %tmp16, i32* %ehselector.slot
call void @llvm.eh.endcatch() #4
br label %ehcleanup
; CHECK-NOT: ehcleanup: ; preds = %lpad7, %catch.dispatch
ehcleanup: ; preds = %lpad7, %catch.dispatch
call void @_ZN5OuterD1Ev(%class.Outer* %outer)
br label %catch.dispatch11
; CHECK-NOT: catch.dispatch11:
catch.dispatch11: ; preds = %ehcleanup, %lpad
%sel12 = load i32, i32* %ehselector.slot
%tmp17 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIf to i8*)) #4
%matches13 = icmp eq i32 %sel12, %tmp17
br i1 %matches13, label %catch14, label %eh.resume
; CHECK-NOT: catch14:
catch14: ; preds = %catch.dispatch11
%exn15 = load i8*, i8** %exn.slot
%f.i8 = bitcast float* %f to i8*
call void @llvm.eh.begincatch(i8* %exn15, i8* %f.i8) #4
%tmp21 = load float, float* %f, align 4
call void @_Z12handle_floatf(float %tmp21)
call void @llvm.eh.endcatch() #4
br label %try.cont19
try.cont19: ; preds = %catch14, %invoke.cont9
call void @_Z4donev()
ret void
; CHECK-NOT: eh.resume:
eh.resume: ; preds = %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: }
}
; This catch handler should be outlined.
; CHECK: define internal i8* @_Z4testv.catch(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_F:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 0)
; CHECK: [[F_PTR:\%.+]] = bitcast i8* [[RECOVER_F]] to float*
; CHECK: [[TMP:\%.+]] = load float, float* [[F_PTR]], align 4
; CHECK: call void @_Z12handle_floatf(float [[TMP]])
; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont19)
; CHECK: }
; This catch handler should be outlined.
; CHECK: define internal i8* @_Z4testv.catch1(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 1)
; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32*
; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4
; CHECK: invoke void @_Z10handle_inti(i32 [[TMP1]])
; CHECK: to label %invoke.cont8 unwind label %[[LPAD7_LABEL:lpad[0-9]*]]
;
; CHECK: invoke.cont8: ; preds = %entry
; CHECK: ret i8* blockaddress(@_Z4testv, %try.cont)
;
; CHECK: [[LPAD7_LABEL]]:{{[ ]+}}; preds = %entry
; CHECK: [[LPAD7_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*)
; (FIXME) The nested handler body isn't being populated yet.
; CHECK: }
; This cleanup handler should be outlined.
; CHECK: define internal void @_Z4testv.cleanup(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_OUTER:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 2)
; CHECK: [[OUTER_PTR:\%.+]] = bitcast i8* [[RECOVER_OUTER]] to %class.Outer*
; CHECK: call void @_ZN5OuterD1Ev(%class.Outer* [[OUTER_PTR]])
; CHECK: ret void
; CHECK: }
; This cleanup handler should be outlined.
; CHECK: define internal void @_Z4testv.cleanup2(i8*, i8*)
; CHECK: entry:
; CHECK: [[RECOVER_INNER:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @_Z4testv to i8*), i8* %1, i32 3)
; CHECK: [[INNER_PTR:\%.+]] = bitcast i8* [[RECOVER_INNER]] to %class.Inner*
; CHECK: call void @_ZN5InnerD1Ev(%class.Inner* [[INNER_PTR]])
; CHECK: ret void
; CHECK: }
declare void @_ZN5OuterC1Ev(%class.Outer*) #1
declare i32 @__CxxFrameHandler3(...)
declare void @_ZN5InnerC1Ev(%class.Inner*) #1
declare void @_Z9may_throwv() #1
declare void @_ZN5InnerD1Ev(%class.Inner*) #1
declare void @llvm.eh.begincatch(i8*, i8*)
; Function Attrs: nounwind readnone
declare i32 @llvm.eh.typeid.for(i8*) #3
declare void @_Z10handle_inti(i32) #1
declare void @llvm.eh.endcatch()
declare void @_ZN5OuterD1Ev(%class.Outer*) #1
declare void @_Z12handle_floatf(float) #1
declare void @_Z4donev() #1
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "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"="true" "no-frame-pointer-elim-non-leaf" "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 = { noinline noreturn nounwind }
attributes #3 = { nounwind readnone }
attributes #4 = { nounwind }
attributes #5 = { noreturn nounwind }
!llvm.ident = !{!0}
!0 = !{!"clang version 3.7.0 (trunk 226027)"}