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https://github.com/c64scene-ar/llvm-6502.git
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cc714e2142
The personality routine currently lives in the LandingPadInst. This isn't desirable because: - All LandingPadInsts in the same function must have the same personality routine. This means that each LandingPadInst beyond the first has an operand which produces no additional information. - There is ongoing work to introduce EH IR constructs other than LandingPadInst. Moving the personality routine off of any one particular Instruction and onto the parent function seems a lot better than have N different places a personality function can sneak onto an exceptional function. Differential Revision: http://reviews.llvm.org/D10429 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239940 91177308-0d34-0410-b5e6-96231b3b80d8
227 lines
10 KiB
LLVM
227 lines
10 KiB
LLVM
; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s
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; This test is based on the following code:
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;
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; void test()
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; {
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; try {
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; may_throw();
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; } catch (int i) {
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; handle_int(i);
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; } catch (long long ll) {
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; handle_long_long(ll);
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; } catch (SomeClass &obj) {
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; handle_obj(&obj);
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; } catch (...) {
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; handle_exception();
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; }
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; }
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;
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; The catch handlers were edited to insert 'ret void' after the endcatch call.
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; ModuleID = 'catch-with-type.cpp'
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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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%rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] }
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%eh.HandlerMapEntry = type { i32, i32 }
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%rtti.TypeDescriptor3 = type { i8**, i8*, [4 x i8] }
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%rtti.TypeDescriptor15 = type { i8**, i8*, [16 x i8] }
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%class.SomeClass = type { i8 }
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$"\01??_R0H@8" = comdat any
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$"\01??_R0_J@8" = comdat any
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$"\01??_R0?AVSomeClass@@@8" = comdat any
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@"\01??_7type_info@@6B@" = external constant i8*
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@"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat
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@__ImageBase = external constant i8
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@llvm.eh.handlermapentry.H = private unnamed_addr constant %eh.HandlerMapEntry { i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section "llvm.metadata"
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@"\01??_R0_J@8" = linkonce_odr global %rtti.TypeDescriptor3 { i8** @"\01??_7type_info@@6B@", i8* null, [4 x i8] c"._J\00" }, comdat
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@llvm.eh.handlermapentry._J = private unnamed_addr constant %eh.HandlerMapEntry { i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor3* @"\01??_R0_J@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section "llvm.metadata"
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@"\01??_R0?AVSomeClass@@@8" = linkonce_odr global %rtti.TypeDescriptor15 { i8** @"\01??_7type_info@@6B@", i8* null, [16 x i8] c".?AVSomeClass@@\00" }, comdat
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@"llvm.eh.handlermapentry.reference.?AVSomeClass@@" = private unnamed_addr constant %eh.HandlerMapEntry { i32 8, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor15* @"\01??_R0?AVSomeClass@@@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section "llvm.metadata"
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; CHECK: define void @"\01?test@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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; CHECK: entry:
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; CHECK: [[OBJ_PTR:\%.+]] = alloca %class.SomeClass*, align 8
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; CHECK: [[LL_PTR:\%.+]] = alloca i64, align 8
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; CHECK: [[I_PTR:\%.+]] = alloca i32, align 4
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; CHECK: call void (...) @llvm.frameescape(i32* [[I_PTR]], i64* [[LL_PTR]], %class.SomeClass** [[OBJ_PTR]])
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; CHECK: invoke void @"\01?may_throw@@YAXXZ"()
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; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]]
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; Function Attrs: uwtable
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define void @"\01?test@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) {
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entry:
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%exn.slot = alloca i8*
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%ehselector.slot = alloca i32
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%obj = alloca %class.SomeClass*, align 8
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%ll = alloca i64, align 8
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%i = alloca i32, align 4
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invoke void @"\01?may_throw@@YAXXZ"()
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to label %invoke.cont unwind label %lpad
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invoke.cont: ; preds = %entry
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br label %try.cont
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; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: catch %eh.HandlerMapEntry* @llvm.eh.handlermapentry.H
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; CHECK-NEXT: catch %eh.HandlerMapEntry* @llvm.eh.handlermapentry._J
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; CHECK-NEXT: catch %eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@"
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; CHECK-NEXT: catch i8* null
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; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(
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; CHECK-SAME: i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry.H to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch",
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; CHECK-SAME: i32 1, i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry._J to i8*), i32 1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch.1",
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; CHECK-SAME: i32 1, i8* bitcast (%eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@" to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch.2",
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; CHECK-SAME: i32 1, i8* null, i32 -1, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch.3")
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; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %ret]
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lpad: ; preds = %entry
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%0 = landingpad { i8*, i32 }
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catch %eh.HandlerMapEntry* @llvm.eh.handlermapentry.H
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catch %eh.HandlerMapEntry* @llvm.eh.handlermapentry._J
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catch %eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@"
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catch i8* null
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%1 = extractvalue { i8*, i32 } %0, 0
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store i8* %1, i8** %exn.slot
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%2 = extractvalue { i8*, i32 } %0, 1
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store i32 %2, i32* %ehselector.slot
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br label %catch.dispatch
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; CHECK-NOT: catch.dispatch:
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catch.dispatch: ; preds = %lpad
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%sel = load i32, i32* %ehselector.slot
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%3 = call i32 @llvm.eh.typeid.for(i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry.H to i8*)) #3
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%matches = icmp eq i32 %sel, %3
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br i1 %matches, label %catch14, label %catch.fallthrough
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ret:
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ret void
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; CHECK-NOT: catch14:
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; CHECK: ret:
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; CHECK-NEXT: ret void
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catch14: ; preds = %catch.dispatch
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%exn15 = load i8*, i8** %exn.slot
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%4 = bitcast i32* %i to i8*
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call void @llvm.eh.begincatch(i8* %exn15, i8* %4) #3
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%5 = load i32, i32* %i, align 4
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call void @"\01?handle_int@@YAXH@Z"(i32 %5)
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call void @llvm.eh.endcatch() #3
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br label %ret
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try.cont: ; preds = %invoke.cont
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br label %ret
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; CHECK-NOT: catch.fallthrough:
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catch.fallthrough: ; preds = %catch.dispatch
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%6 = call i32 @llvm.eh.typeid.for(i8* bitcast (%eh.HandlerMapEntry* @llvm.eh.handlermapentry._J to i8*)) #3
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%matches1 = icmp eq i32 %sel, %6
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br i1 %matches1, label %catch10, label %catch.fallthrough2
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; CHECK-NOT: catch10:
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catch10: ; preds = %catch.fallthrough
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%exn11 = load i8*, i8** %exn.slot
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%7 = bitcast i64* %ll to i8*
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call void @llvm.eh.begincatch(i8* %exn11, i8* %7) #3
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%8 = load i64, i64* %ll, align 8
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call void @"\01?handle_long_long@@YAX_J@Z"(i64 %8)
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call void @llvm.eh.endcatch() #3
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br label %ret
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; CHECK-NOT: catch.fallthrough2:
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catch.fallthrough2: ; preds = %catch.fallthrough
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%9 = call i32 @llvm.eh.typeid.for(i8* bitcast (%eh.HandlerMapEntry* @"llvm.eh.handlermapentry.reference.?AVSomeClass@@" to i8*)) #3
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%matches3 = icmp eq i32 %sel, %9
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br i1 %matches3, label %catch6, label %catch
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; CHECK-NOT: catch6:
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catch6: ; preds = %catch.fallthrough2
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%exn7 = load i8*, i8** %exn.slot
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%10 = bitcast %class.SomeClass** %obj to i8*
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call void @llvm.eh.begincatch(i8* %exn7, i8* %10) #3
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%11 = load %class.SomeClass*, %class.SomeClass** %obj, align 8
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call void @"\01?handle_obj@@YAXPEAVSomeClass@@@Z"(%class.SomeClass* %11)
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call void @llvm.eh.endcatch() #3
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br label %ret
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; CHECK-NOT: catch:
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catch: ; preds = %catch.fallthrough2
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%exn = load i8*, i8** %exn.slot
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call void @llvm.eh.begincatch(i8* %exn, i8* null) #3
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call void @"\01?handle_exception@@YAXXZ"() call void @llvm.eh.endcatch() #3
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br label %ret
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; CHECK: }
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}
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; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*)
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; CHECK: entry:
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; CHECK: [[RECOVER_I:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0)
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; CHECK: [[I_PTR:\%.+]] = bitcast i8* [[RECOVER_I]] to i32*
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; CHECK: [[TMP1:\%.+]] = load i32, i32* [[I_PTR]], align 4
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; CHECK: call void @"\01?handle_int@@YAXH@Z"(i32 [[TMP1]])
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; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %ret)
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; CHECK: }
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; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch.1"(i8*, i8*)
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; CHECK: entry:
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; CHECK: [[RECOVER_LL:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1)
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; CHECK: [[LL_PTR:\%.+]] = bitcast i8* [[RECOVER_LL]] to i64*
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; CHECK: [[TMP2:\%.+]] = load i64, i64* [[LL_PTR]], align 8
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; CHECK: call void @"\01?handle_long_long@@YAX_J@Z"(i64 [[TMP2]])
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; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %ret)
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; CHECK: }
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; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch.2"(i8*, i8*)
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; CHECK: entry:
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; CHECK: [[RECOVER_OBJ:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2)
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; CHECK: [[OBJ_PTR:\%.+]] = bitcast i8* [[RECOVER_OBJ]] to %class.SomeClass**
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; CHECK: [[TMP3:\%.+]] = load %class.SomeClass*, %class.SomeClass** [[OBJ_PTR]], align 8
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; CHECK: call void @"\01?handle_obj@@YAXPEAVSomeClass@@@Z"(%class.SomeClass* [[TMP3]])
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; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %ret)
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; CHECK: }
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; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch.3"(i8*, i8*)
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; CHECK: entry:
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; CHECK: call void @"\01?handle_exception@@YAXXZ"()
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; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %ret)
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; CHECK: }
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declare void @"\01?may_throw@@YAXXZ"() #1
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declare i32 @__CxxFrameHandler3(...)
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; Function Attrs: nounwind readnone
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declare i32 @llvm.eh.typeid.for(i8*) #2
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; Function Attrs: nounwind
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declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3
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declare void @"\01?handle_exception@@YAXXZ"() #1
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; Function Attrs: nounwind
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declare void @llvm.eh.endcatch() #3
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declare void @"\01?handle_obj@@YAXPEAVSomeClass@@@Z"(%class.SomeClass*) #1
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declare void @"\01?handle_long_long@@YAX_J@Z"(i64) #1
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declare void @"\01?handle_int@@YAXH@Z"(i32) #1
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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" }
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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" }
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attributes #2 = { nounwind readnone }
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attributes #3 = { nounwind }
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!llvm.module.flags = !{!0}
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!llvm.ident = !{!1}
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!0 = !{i32 1, !"PIC Level", i32 2}
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!1 = !{!"clang version 3.7.0 (trunk 233155) (llvm/trunk 233153)"}
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