| ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s |
| |
| ; This test is built from the following code: |
| ; struct A { |
| ; A(int a); |
| ; A(const A &o); |
| ; ~A(); |
| ; int a; |
| ; }; |
| ; |
| ; void may_throw(); |
| ; |
| ; int test(A a) { |
| ; try { |
| ; may_throw(); |
| ; } |
| ; catch (int e) { |
| ; return a.a + e; |
| ; } |
| ; return 0; |
| ; } |
| ; |
| ; The test was built for a 32-bit Windows target and then the reference to |
| ; the inalloca instruction was manually sunk into the landingpad. |
| |
| ; ModuleID = 'cppeh-inalloca.cpp' |
| |
| %rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } |
| %struct.A = type { i32 } |
| |
| $"\01??_R0H@8" = comdat any |
| |
| @"\01??_7type_info@@6B@" = external constant i8* |
| @"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat |
| |
| ; The function entry should be rewritten like this. |
| ; CHECK: define i32 @"\01?test@@YAHUA@@@Z"(<{ %struct.A }>* inalloca) |
| ; CHECK: entry: |
| ; CHECK: [[TMP_REGMEM:\%.+]] = alloca <{ %struct.A }>* |
| ; CHECK: store <{ %struct.A }>* %0, <{ %struct.A }>** [[TMP_REGMEM]] |
| ; CHECK: [[RETVAL:\%.+]] = alloca i32, align 4 |
| ; CHECK: [[E_PTR:\%.+]] = alloca i32, align 4 |
| ; CHECK: [[CLEANUP_SLOT:\%.+]] = alloca i32 |
| ; CHECK: call void (...) @llvm.localescape(i32* %e, <{ %struct.A }>** [[TMP_REGMEM]], i32* [[RETVAL]], i32* [[CLEANUP_SLOT]]) |
| ; CHECK: invoke void @"\01?may_throw@@YAXXZ"() |
| ; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]*]] |
| |
| define i32 @"\01?test@@YAHUA@@@Z"(<{ %struct.A }>* inalloca) #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { |
| entry: |
| %retval = alloca i32, align 4 |
| %exn.slot = alloca i8* |
| %ehselector.slot = alloca i32 |
| %e = alloca i32, align 4 |
| %cleanup.dest.slot = alloca i32 |
| invoke void @"\01?may_throw@@YAXXZ"() |
| to label %invoke.cont unwind label %lpad |
| |
| invoke.cont: ; preds = %entry |
| br label %try.cont |
| |
| ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry |
| ; CHECK: landingpad { i8*, i32 } |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| ; CHECK-NEXT: [[RECOVER:\%recover.*]] = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAHUA@@@Z.catch", i32 0, void (i8*, i8*)* @"\01?test@@YAHUA@@@Z.cleanup") |
| ; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %cleanup] |
| |
| lpad: ; preds = %entry |
| %1 = landingpad { i8*, i32 } |
| cleanup |
| catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| %2 = extractvalue { i8*, i32 } %1, 0 |
| store i8* %2, i8** %exn.slot |
| %3 = extractvalue { i8*, i32 } %1, 1 |
| store i32 %3, i32* %ehselector.slot |
| br label %catch.dispatch |
| |
| ; CHECK-NOT: catch.dispatch: |
| |
| catch.dispatch: ; preds = %lpad |
| %sel = load i32, i32* %ehselector.slot |
| %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 |
| %matches = icmp eq i32 %sel, %4 |
| br i1 %matches, label %catch, label %ehcleanup |
| |
| ; CHECK-NOT: catch: |
| |
| catch: ; preds = %catch.dispatch |
| %exn = load i8*, i8** %exn.slot |
| %e.i8 = bitcast i32* %e to i8* |
| call void @llvm.eh.begincatch(i8* %exn, i8* %e.i8) #3 |
| %a = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 |
| %a1 = getelementptr inbounds %struct.A, %struct.A* %a, i32 0, i32 0 |
| %tmp8 = load i32, i32* %a1, align 4 |
| %tmp9 = load i32, i32* %e, align 4 |
| %add = add nsw i32 %tmp8, %tmp9 |
| store i32 %add, i32* %retval |
| store i32 1, i32* %cleanup.dest.slot |
| call void @llvm.eh.endcatch() #3 |
| br label %cleanup |
| |
| try.cont: ; preds = %invoke.cont |
| store i32 0, i32* %retval |
| store i32 1, i32* %cleanup.dest.slot |
| br label %cleanup |
| |
| ; The cleanup block should be re-written like this. |
| ; CHECK: cleanup:{{[ ]+}}; preds = %[[LPAD_LABEL]], %try.cont |
| ; CHECK: %a2 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 |
| ; CHECK: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %a2) |
| ; CHECK: [[TMP1:\%.+]] = load i32, i32* [[RETVAL]] |
| ; CHECK: ret i32 [[TMP1]] |
| |
| cleanup: ; preds = %try.cont, %catch |
| %a2 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 |
| call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %a2) #3 |
| %tmp10 = load i32, i32* %retval |
| ret i32 %tmp10 |
| |
| ; CHECK-NOT: ehcleanup: |
| |
| ehcleanup: ; preds = %catch.dispatch |
| %a3 = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* %0, i32 0, i32 0 |
| call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* %a3) #3 |
| br label %eh.resume |
| |
| ; CHECK-NOT: eh.resume: |
| |
| eh.resume: ; preds = %ehcleanup |
| %exn2 = load i8*, i8** %exn.slot |
| %sel3 = load i32, i32* %ehselector.slot |
| %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn2, 0 |
| %lpad.val4 = insertvalue { i8*, i32 } %lpad.val, i32 %sel3, 1 |
| resume { i8*, i32 } %lpad.val4 |
| |
| ; CHECK: } |
| } |
| |
| ; The following catch handler should be outlined. |
| ; CHECK: define internal i8* @"\01?test@@YAHUA@@@Z.catch"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: [[RECOVER_E:\%.+]] = call i8* @llvm.localrecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 0) |
| ; CHECK: [[E_PTR:\%.+]] = bitcast i8* [[RECOVER_E]] to i32* |
| ; CHECK: [[RECOVER_EH_TEMP:\%.+]] = call i8* @llvm.localrecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 1) |
| ; CHECK: [[EH_TEMP:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP]] to <{ %struct.A }>** |
| ; CHECK: [[RECOVER_RETVAL:\%.+]] = call i8* @llvm.localrecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 2) |
| ; CHECK: [[RETVAL1:\%.+]] = bitcast i8* [[RECOVER_RETVAL]] to i32* |
| ; CHECK: [[RECOVER_CLEANUPSLOT:\%.+]] = call i8* @llvm.localrecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 3) |
| ; CHECK: [[CLEANUPSLOT1:\%.+]] = bitcast i8* [[RECOVER_CLEANUPSLOT]] to i32* |
| ; CHECK: [[E_I8PTR:\%.+]] = bitcast i32* [[E_PTR]] to i8* |
| ; CHECK: [[TMP_RELOAD:\%.+]] = load <{ %struct.A }>*, <{ %struct.A }>** [[EH_TEMP]] |
| ; CHECK: [[RECOVER_A:\%.+]] = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* [[TMP_RELOAD]], i32 0, i32 0 |
| ; CHECK: [[A1:\%.+]] = getelementptr inbounds %struct.A, %struct.A* [[RECOVER_A]], i32 0, i32 0 |
| ; CHECK: [[TMP2:\%.+]] = load i32, i32* [[A1]], align 4 |
| ; CHECK: [[TMP3:\%.+]] = load i32, i32* [[E_PTR]], align 4 |
| ; CHECK: [[ADD:\%.+]] = add nsw i32 [[TMP2]], [[TMP3]] |
| ; CHECK: store i32 [[ADD]], i32* [[RETVAL1]] |
| ; CHECK: store i32 1, i32* [[CLEANUPSLOT1]] |
| ; CHECK: ret i8* blockaddress(@"\01?test@@YAHUA@@@Z", %cleanup) |
| ; CHECK: } |
| |
| ; The following cleanup handler should be outlined. |
| ; CHECK: define internal void @"\01?test@@YAHUA@@@Z.cleanup"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: [[RECOVER_EH_TEMP1:\%.+]] = call i8* @llvm.localrecover(i8* bitcast (i32 (<{ %struct.A }>*)* @"\01?test@@YAHUA@@@Z" to i8*), i8* %1, i32 1) |
| ; CHECK: [[EH_TEMP1:\%.+]] = bitcast i8* [[RECOVER_EH_TEMP]] to <{ %struct.A }>** |
| ; CHECK: [[TMP_RELOAD1:\%.+]] = load <{ %struct.A }>*, <{ %struct.A }>** [[EH_TEMP1]] |
| ; CHECK: [[A3:\%.+]] = getelementptr inbounds <{ %struct.A }>, <{ %struct.A }>* [[TMP_RELOAD1]], i32 0, i32 0 |
| ; CHECK: call x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A* [[A3]]) |
| ; CHECK: ret void |
| ; CHECK: } |
| |
| declare void @"\01?may_throw@@YAXXZ"() #0 |
| |
| declare i32 @__CxxFrameHandler3(...) |
| |
| ; Function Attrs: nounwind readnone |
| declare i32 @llvm.eh.typeid.for(i8*) #1 |
| |
| declare void @llvm.eh.begincatch(i8*, i8*) |
| |
| declare void @llvm.eh.endcatch() |
| |
| ; Function Attrs: nounwind |
| declare x86_thiscallcc void @"\01??1A@@QAE@XZ"(%struct.A*) #2 |
| |
| attributes #0 = { "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 = { nounwind readnone } |
| attributes #2 = { nounwind "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 #3 = { nounwind } |
| |
| !llvm.ident = !{!0} |
| |
| !0 = !{!"clang version 3.7.0 (trunk 228868)"} |