; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s ; This test is based on the following code: ; ; struct SomeData { ; int a; ; int b; ; }; ; ; void may_throw(); ; void does_not_throw(int i); ; void dump(int *, int, SomeData&); ; ; void test() { ; int NumExceptions = 0; ; int ExceptionVal[10]; ; SomeData Data = { 0, 0 }; ; ; for (int i = 0; i < 10; ++i) { ; try { ; may_throw(); ; Data.a += i; ; } ; catch (int e) { ; ExceptionVal[NumExceptions] = e; ; ++NumExceptions; ; if (e == i) ; Data.b += e; ; else ; Data.a += e; ; } ; does_not_throw(NumExceptions); ; } ; dump(ExceptionVal, NumExceptions, Data); ; } ; ModuleID = 'cppeh-frame-vars.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] } %struct.SomeData = type { i32, i32 } ; This structure should be declared for the frame allocation block. ; CHECK: %"struct.\01?test@@YAXXZ.ehdata" = type { i32, i8*, i32, i32, [10 x i32], i32, %struct.SomeData } $"\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 void @"\01?test@@YAXXZ"() #0 { ; CHECK: entry: ; CHECK: %frame.alloc = call i8* @llvm.frameallocate(i32 80) ; CHECK: %eh.data = bitcast i8* %frame.alloc to %"struct.\01?test@@YAXXZ.ehdata"* ; CHECK-NOT: %NumExceptions = alloca i32, align 4 ; CHECK: %NumExceptions = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 3 ; CHECK-NOT: %ExceptionVal = alloca [10 x i32], align 16 ; CHECK: %ExceptionVal = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 4 ; CHECK-NOT: %Data = alloca %struct.SomeData, align 4 ; CHECK: %Data = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 6 ; CHECK: %i = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 5 ; CHECK: %exn.slot = alloca i8* ; CHECK: %ehselector.slot = alloca i32 ; CHECK-NOT: %e = alloca i32, align 4 ; CHECK: %e = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 2 ; Function Attrs: uwtable define void @"\01?test@@YAXXZ"() #0 { entry: %NumExceptions = alloca i32, align 4 %ExceptionVal = alloca [10 x i32], align 16 %Data = alloca %struct.SomeData, align 4 %i = alloca i32, align 4 %exn.slot = alloca i8* %ehselector.slot = alloca i32 %e = alloca i32, align 4 store i32 0, i32* %NumExceptions, align 4 %0 = bitcast %struct.SomeData* %Data to i8* call void @llvm.memset(i8* %0, i8 0, i64 8, i32 4, i1 false) store i32 0, i32* %i, align 4 br label %for.cond for.cond: ; preds = %for.inc, %entry %1 = load i32, i32* %i, align 4 %cmp = icmp slt i32 %1, 10 br i1 %cmp, label %for.body, label %for.end for.body: ; preds = %for.cond invoke void @"\01?may_throw@@YAXXZ"() to label %invoke.cont unwind label %lpad invoke.cont: ; preds = %for.body %2 = load i32, i32* %i, align 4 %a = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 %3 = load i32, i32* %a, align 4 %add = add nsw i32 %3, %2 store i32 %add, i32* %a, align 4 br label %try.cont lpad: ; preds = %for.body %4 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) %5 = extractvalue { i8*, i32 } %4, 0 store i8* %5, i8** %exn.slot %6 = extractvalue { i8*, i32 } %4, 1 store i32 %6, i32* %ehselector.slot br label %catch.dispatch catch.dispatch: ; preds = %lpad %sel = load i32, i32* %ehselector.slot %7 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #1 %matches = icmp eq i32 %sel, %7 br i1 %matches, label %catch, label %eh.resume catch: ; preds = %catch.dispatch %exn = load i8*, i8** %exn.slot %8 = call i8* @llvm.eh.begincatch(i8* %exn) #1 %9 = bitcast i8* %8 to i32* %10 = load i32, i32* %9, align 4 store i32 %10, i32* %e, align 4 %11 = load i32, i32* %e, align 4 %12 = load i32, i32* %NumExceptions, align 4 %idxprom = sext i32 %12 to i64 %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i64 %idxprom store i32 %11, i32* %arrayidx, align 4 %13 = load i32, i32* %NumExceptions, align 4 %inc = add nsw i32 %13, 1 store i32 %inc, i32* %NumExceptions, align 4 %14 = load i32, i32* %e, align 4 %15 = load i32, i32* %i, align 4 %cmp1 = icmp eq i32 %14, %15 br i1 %cmp1, label %if.then, label %if.else if.then: ; preds = %catch %16 = load i32, i32* %e, align 4 %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 1 %17 = load i32, i32* %b, align 4 %add2 = add nsw i32 %17, %16 store i32 %add2, i32* %b, align 4 br label %if.end if.else: ; preds = %catch %18 = load i32, i32* %e, align 4 %a3 = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 %19 = load i32, i32* %a3, align 4 %add4 = add nsw i32 %19, %18 store i32 %add4, i32* %a3, align 4 br label %if.end if.end: ; preds = %if.else, %if.then call void @llvm.eh.endcatch() #1 br label %try.cont try.cont: ; preds = %if.end, %invoke.cont %20 = load i32, i32* %NumExceptions, align 4 call void @"\01?does_not_throw@@YAXH@Z"(i32 %20) br label %for.inc for.inc: ; preds = %try.cont %21 = load i32, i32* %i, align 4 %inc5 = add nsw i32 %21, 1 store i32 %inc5, i32* %i, align 4 br label %for.cond for.end: ; preds = %for.cond %22 = load i32, i32* %NumExceptions, align 4 %arraydecay = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i32 0 call void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32* %arraydecay, i32 %22, %struct.SomeData* dereferenceable(8) %Data) ret void eh.resume: ; preds = %catch.dispatch %exn6 = load i8*, i8** %exn.slot %sel7 = load i32, i32* %ehselector.slot %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn6, 0 %lpad.val8 = insertvalue { i8*, i32 } %lpad.val, i32 %sel7, 1 resume { i8*, i32 } %lpad.val8 } ; The following catch handler should be outlined. ; CHECK: define i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) { ; CHECK: catch.entry: ; CHECK: %eh.alloc = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1) ; CHECK: %eh.data = bitcast i8* %eh.alloc to %"struct.\01?test@@YAXXZ.ehdata"* ; CHECK: %eh.obj.ptr = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 1 ; CHECK: %eh.obj = load i8*, i8** %eh.obj.ptr ; CHECK: %e = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 2 ; CHECK: %NumExceptions = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 3 ; CHECK: %ExceptionVal = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 4 ; CHECK: %i = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 5 ; CHECK: %Data = getelementptr inbounds %"struct.\01?test@@YAXXZ.ehdata", %"struct.\01?test@@YAXXZ.ehdata"* %eh.data, i32 0, i32 6 ; CHECK: %2 = bitcast i8* %eh.obj to i32* ; CHECK: %3 = load i32, i32* %2, align 4 ; CHECK: store i32 %3, i32* %e, align 4 ; CHECK: %4 = load i32, i32* %e, align 4 ; CHECK: %5 = load i32, i32* %NumExceptions, align 4 ; CHECK: %idxprom = sext i32 %5 to i64 ; CHECK: %arrayidx = getelementptr inbounds [10 x i32], [10 x i32]* %ExceptionVal, i32 0, i64 %idxprom ; CHECK: store i32 %4, i32* %arrayidx, align 4 ; CHECK: %6 = load i32, i32* %NumExceptions, align 4 ; CHECK: %inc = add nsw i32 %6, 1 ; CHECK: store i32 %inc, i32* %NumExceptions, align 4 ; CHECK: %7 = load i32, i32* %e, align 4 ; CHECK: %8 = load i32, i32* %i, align 4 ; CHECK: %cmp1 = icmp eq i32 %7, %8 ; CHECK: br i1 %cmp1, label %if.then, label %if.else ; ; CHECK: if.then: ; preds = %catch.entry ; CHECK: %9 = load i32, i32* %e, align 4 ; CHECK: %b = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 1 ; CHECK: %10 = load i32, i32* %b, align 4 ; CHECK: %add2 = add nsw i32 %10, %9 ; CHECK: store i32 %add2, i32* %b, align 4 ; CHECK: br label %if.end ; ; CHECK: if.else: ; preds = %catch.entry ; CHECK: %11 = load i32, i32* %e, align 4 ; CHECK: %a3 = getelementptr inbounds %struct.SomeData, %struct.SomeData* %Data, i32 0, i32 0 ; CHECK: %12 = load i32, i32* %a3, align 4 ; CHECK: %add4 = add nsw i32 %12, %11 ; CHECK: store i32 %add4, i32* %a3, align 4 ; CHECK: br label %if.end ; ; CHECK: if.end: ; preds = %if.else, %if.then ; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) ; CHECK: } ; Function Attrs: nounwind declare void @llvm.memset(i8* nocapture, i8, i64, i32, i1) #1 declare void @"\01?may_throw@@YAXXZ"() #2 declare i32 @__CxxFrameHandler3(...) ; Function Attrs: nounwind readnone declare i32 @llvm.eh.typeid.for(i8*) #3 declare i8* @llvm.eh.begincatch(i8*) declare void @llvm.eh.endcatch() declare void @"\01?does_not_throw@@YAXH@Z"(i32) #2 declare void @"\01?dump@@YAXPEAHHAEAUSomeData@@@Z"(i32*, i32, %struct.SomeData* dereferenceable(8)) #2 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 = { nounwind } attributes #2 = { "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 #3 = { nounwind readnone } !llvm.module.flags = !{!0} !llvm.ident = !{!1} !0 = !{i32 1, !"PIC Level", i32 2} !1 = !{!"clang version 3.7.0 (trunk 228868)"}