| ; RUN: opt < %s -winehprepare -demote-catchswitch-only -wasmehprepare -S | FileCheck %s |
| |
| target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" |
| target triple = "wasm32-unknown-unknown" |
| |
| ; CHECK: @__wasm_lpad_context = external global { i32, i8*, i32 } |
| |
| @_ZTIi = external constant i8* |
| %struct.Cleanup = type { i8 } |
| |
| ; A single 'catch (int)' clause. |
| ; A wasm.catch() call, wasm.lsda() call, and personality call to generate a |
| ; selector should all be genereated after the catchpad. |
| define void @test0() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { |
| ; CHECK-LABEL: @test0() |
| entry: |
| invoke void @foo() |
| to label %try.cont unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %0 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)] |
| %2 = call i8* @llvm.wasm.get.exception(token %1) |
| %3 = call i32 @llvm.wasm.get.ehselector(token %1) |
| %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) |
| %matches = icmp eq i32 %3, %4 |
| br i1 %matches, label %catch, label %rethrow |
| ; CHECK: catch.start: |
| ; CHECK-NEXT: %[[CATCHPAD:.*]] = catchpad |
| ; CHECK-NEXT: %[[EXN:.*]] = call i8* @llvm.wasm.catch(i32 0) |
| ; CHECK-NEXT: call void @llvm.wasm.landingpad.index(i32 0) |
| ; CHECK-NEXT: store i32 0, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 0) |
| ; CHECK-NEXT: %[[LSDA:.*]] = call i8* @llvm.wasm.lsda() |
| ; CHECK-NEXT: store i8* %[[LSDA]], i8** getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 1) |
| ; CHECK-NEXT: call i32 @_Unwind_CallPersonality(i8* %[[EXN]]) {{.*}} [ "funclet"(token %[[CATCHPAD]]) ] |
| ; CHECK-NEXT: %[[SELECTOR:.*]] = load i32, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 2) |
| ; CHECK: icmp eq i32 %[[SELECTOR]] |
| |
| catch: ; preds = %catch.start |
| %5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ] |
| call void @__cxa_end_catch() [ "funclet"(token %1) ] |
| catchret from %1 to label %try.cont |
| ; CHECK: catch: |
| ; CHECK-NEXT: call i8* @__cxa_begin_catch(i8* %[[EXN]]) |
| |
| rethrow: ; preds = %catch.start |
| call void @__cxa_rethrow() [ "funclet"(token %1) ] |
| unreachable |
| |
| try.cont: ; preds = %entry, %catch |
| ret void |
| } |
| |
| ; Two try-catches, one of them is with a single 'catch (...)' clause. |
| ; For the catchpad with a single 'catch (...)', only a wasm.catch() call should |
| ; be generated after the catchpad; wasm.landingpad.index() and personality call |
| ; should NOT be generated. For the other catchpad, the argument of |
| ; wasm.landingpad.index() should be not 1 but 0. |
| define void @test1() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { |
| ; CHECK-LABEL: @test1() |
| entry: |
| invoke void @foo() |
| to label %try.cont unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %0 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %1 = catchpad within %0 [i8* null] |
| %2 = call i8* @llvm.wasm.get.exception(token %1) |
| %3 = call i32 @llvm.wasm.get.ehselector(token %1) |
| %4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ] |
| call void @__cxa_end_catch() [ "funclet"(token %1) ] |
| catchret from %1 to label %try.cont |
| ; CHECK: catch.start: |
| ; CHECK-NEXT: catchpad within %0 [i8* null] |
| ; CHECK-NEXT: call i8* @llvm.wasm.catch(i32 0) |
| ; CHECK-NOT: call void @llvm.wasm.landingpad.index |
| ; CHECK-NOT: store {{.*}} @__wasm_lpad_context |
| ; CHECK-NOT: call i8* @llvm.wasm.lsda() |
| ; CHECK-NOT: call i32 @_Unwind_CallPersonality |
| ; CHECK-NOT: load {{.*}} @__wasm_lpad_context |
| |
| try.cont: ; preds = %entry, %catch.start |
| invoke void @foo() |
| to label %try.cont7 unwind label %catch.dispatch2 |
| |
| catch.dispatch2: ; preds = %try.cont |
| %5 = catchswitch within none [label %catch.start3] unwind to caller |
| |
| catch.start3: ; preds = %catch.dispatch2 |
| %6 = catchpad within %5 [i8* bitcast (i8** @_ZTIi to i8*)] |
| %7 = call i8* @llvm.wasm.get.exception(token %6) |
| %8 = call i32 @llvm.wasm.get.ehselector(token %6) |
| %9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) |
| %matches = icmp eq i32 %8, %9 |
| br i1 %matches, label %catch4, label %rethrow |
| ; CHECK: catch.start3: |
| ; CHECK: call void @llvm.wasm.landingpad.index(i32 0) |
| |
| catch4: ; preds = %catch.start3 |
| %10 = call i8* @__cxa_begin_catch(i8* %7) [ "funclet"(token %6) ] |
| call void @__cxa_end_catch() [ "funclet"(token %6) ] |
| catchret from %6 to label %try.cont7 |
| |
| rethrow: ; preds = %catch.start3 |
| call void @__cxa_rethrow() [ "funclet"(token %6) ] |
| unreachable |
| |
| try.cont7: ; preds = %try.cont, %catch4 |
| ret void |
| } |
| |
| ; A nested try-catch within a catch. Within the nested catchpad, wasm.lsda() |
| ; call should NOT be generated. |
| define void @test2() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { |
| ; CHECK-LABEL: @test2() |
| entry: |
| invoke void @foo() |
| to label %try.cont9 unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %0 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)] |
| %2 = call i8* @llvm.wasm.get.exception(token %1) |
| %3 = call i32 @llvm.wasm.get.ehselector(token %1) |
| %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) |
| %matches = icmp eq i32 %3, %4 |
| br i1 %matches, label %catch, label %rethrow |
| ; CHECK: catch.start: |
| ; CHECK: call i8* @llvm.wasm.lsda() |
| |
| catch: ; preds = %catch.start |
| %5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ] |
| invoke void @foo() [ "funclet"(token %1) ] |
| to label %try.cont unwind label %catch.dispatch2 |
| |
| catch.dispatch2: ; preds = %catch |
| %6 = catchswitch within %1 [label %catch.start3] unwind label %ehcleanup |
| |
| catch.start3: ; preds = %catch.dispatch2 |
| %7 = catchpad within %6 [i8* bitcast (i8** @_ZTIi to i8*)] |
| %8 = call i8* @llvm.wasm.get.exception(token %7) |
| %9 = call i32 @llvm.wasm.get.ehselector(token %7) |
| %10 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) |
| %matches4 = icmp eq i32 %9, %10 |
| br i1 %matches4, label %catch6, label %rethrow5 |
| ; CHECK: catch.start3: |
| ; CHECK-NOT: call i8* @llvm.wasm.lsda() |
| |
| catch6: ; preds = %catch.start3 |
| %11 = call i8* @__cxa_begin_catch(i8* %8) [ "funclet"(token %7) ] |
| call void @__cxa_end_catch() [ "funclet"(token %7) ] |
| catchret from %7 to label %try.cont |
| |
| rethrow5: ; preds = %catch.start3 |
| invoke void @__cxa_rethrow() [ "funclet"(token %7) ] |
| to label %unreachable unwind label %ehcleanup |
| |
| try.cont: ; preds = %catch, %catch6 |
| call void @__cxa_end_catch() [ "funclet"(token %1) ] |
| catchret from %1 to label %try.cont9 |
| |
| rethrow: ; preds = %catch.start |
| call void @__cxa_rethrow() [ "funclet"(token %1) ] |
| unreachable |
| |
| try.cont9: ; preds = %entry, %try.cont |
| ret void |
| |
| ehcleanup: ; preds = %rethrow5, %catch.dispatch2 |
| %12 = cleanuppad within %1 [] |
| call void @__cxa_end_catch() [ "funclet"(token %12) ] |
| cleanupret from %12 unwind to caller |
| ; CHECK: ehcleanup: |
| ; CHECK-NEXT: cleanuppad |
| ; CHECK-NOT: call i8* @llvm.wasm.catch(i32 0) |
| ; CHECK-NOT: call void @llvm.wasm.landingpad.index |
| ; CHECK-NOT: store {{.*}} @__wasm_lpad_context |
| ; CHECK-NOT: call i8* @llvm.wasm.lsda() |
| ; CHECK-NOT: call i32 @_Unwind_CallPersonality |
| ; CHECK-NOT: load {{.*}} @__wasm_lpad_context |
| |
| unreachable: ; preds = %rethrow5 |
| unreachable |
| } |
| |
| ; A cleanuppad with a call to __clang_call_terminate(). |
| ; A call to wasm.catch() should be generated after the cleanuppad. |
| define hidden void @test3() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { |
| ; CHECK-LABEL: @test3 |
| entry: |
| invoke void @foo() |
| to label %try.cont unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %0 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %1 = catchpad within %0 [i8* null] |
| %2 = call i8* @llvm.wasm.get.exception(token %1) |
| %3 = call i32 @llvm.wasm.get.ehselector(token %1) |
| %4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ] |
| invoke void @foo() [ "funclet"(token %1) ] |
| to label %invoke.cont1 unwind label %ehcleanup |
| |
| invoke.cont1: ; preds = %catch.start |
| call void @__cxa_end_catch() [ "funclet"(token %1) ] |
| catchret from %1 to label %try.cont |
| |
| try.cont: ; preds = %entry, %invoke.cont1 |
| ret void |
| |
| ehcleanup: ; preds = %catch.start |
| %5 = cleanuppad within %1 [] |
| invoke void @__cxa_end_catch() [ "funclet"(token %5) ] |
| to label %invoke.cont2 unwind label %terminate |
| |
| invoke.cont2: ; preds = %ehcleanup |
| cleanupret from %5 unwind to caller |
| |
| terminate: ; preds = %ehcleanup |
| %6 = cleanuppad within %5 [] |
| %7 = call i8* @llvm.wasm.get.exception(token %6) |
| call void @__clang_call_terminate(i8* %7) [ "funclet"(token %6) ] |
| unreachable |
| ; CHECK: terminate: |
| ; CHECK-NEXT: cleanuppad |
| ; CHECK-NEXT: %[[EXN:.*]] = call i8* @llvm.wasm.catch(i32 0) |
| ; CHECK-NEXT: call void @__clang_call_terminate(i8* %[[EXN]]) |
| } |
| |
| ; PHI demotion test. Only the phi before catchswitch should be demoted; the phi |
| ; before cleanuppad should NOT. |
| define void @test5() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { |
| ; CHECK-LABEL: @test5 |
| entry: |
| %c = alloca %struct.Cleanup, align 1 |
| invoke void @foo() |
| to label %invoke.cont unwind label %ehcleanup |
| |
| invoke.cont: ; preds = %entry |
| invoke void @foo() |
| to label %invoke.cont1 unwind label %ehcleanup |
| |
| invoke.cont1: ; preds = %invoke.cont |
| %call = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) |
| br label %try.cont |
| |
| ehcleanup: ; preds = %invoke.cont, %entry |
| %num.0 = phi i32 [ 2, %invoke.cont ], [ 1, %entry ] |
| %0 = cleanuppad within none [] |
| %call2 = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) [ "funclet"(token %0) ] |
| cleanupret from %0 unwind label %catch.dispatch |
| ; CHECK: ehcleanup: |
| ; CHECK-NEXT: = phi |
| |
| catch.dispatch: ; preds = %ehcleanup |
| %1 = catchswitch within none [label %catch.start] unwind to caller |
| |
| catch.start: ; preds = %catch.dispatch |
| %2 = catchpad within %1 [i8* null] |
| %3 = call i8* @llvm.wasm.get.exception(token %2) |
| %4 = call i32 @llvm.wasm.get.ehselector(token %2) |
| %5 = call i8* @__cxa_begin_catch(i8* %3) [ "funclet"(token %2) ] |
| call void @func(i32 %num.0) [ "funclet"(token %2) ] |
| call void @__cxa_end_catch() [ "funclet"(token %2) ] |
| catchret from %2 to label %try.cont |
| |
| try.cont: ; preds = %catch.start, %invoke.cont1 |
| invoke void @foo() |
| to label %invoke.cont3 unwind label %catch.dispatch5 |
| |
| invoke.cont3: ; preds = %try.cont |
| invoke void @foo() |
| to label %try.cont10 unwind label %catch.dispatch5 |
| |
| catch.dispatch5: ; preds = %invoke.cont3, %try.cont |
| %num.1 = phi i32 [ 2, %invoke.cont3 ], [ 1, %try.cont ] |
| %6 = catchswitch within none [label %catch.start6] unwind to caller |
| ; CHECK: catch.dispatch5: |
| ; CHECK-NOT: = phi |
| |
| catch.start6: ; preds = %catch.dispatch5 |
| %7 = catchpad within %6 [i8* null] |
| %8 = call i8* @llvm.wasm.get.exception(token %7) |
| %9 = call i32 @llvm.wasm.get.ehselector(token %7) |
| %10 = call i8* @__cxa_begin_catch(i8* %8) [ "funclet"(token %7) ] |
| call void @func(i32 %num.1) [ "funclet"(token %7) ] |
| call void @__cxa_end_catch() [ "funclet"(token %7) ] |
| catchret from %7 to label %try.cont10 |
| |
| try.cont10: ; preds = %invoke.cont3, %catch.start6 |
| ret void |
| } |
| |
| declare void @foo() |
| declare void @func(i32) |
| declare %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* returned) |
| declare i32 @__gxx_wasm_personality_v0(...) |
| declare i8* @llvm.wasm.get.exception(token) |
| declare i32 @llvm.wasm.get.ehselector(token) |
| declare i32 @llvm.eh.typeid.for(i8*) |
| declare i8* @__cxa_begin_catch(i8*) |
| declare void @__cxa_end_catch() |
| declare void @__cxa_rethrow() |
| declare void @__clang_call_terminate(i8*) |
| |
| ; CHECK-DAG: declare i8* @llvm.wasm.catch(i32) |
| ; CHECK-DAG: declare void @llvm.wasm.landingpad.index(i32) |
| ; CHECK-DAG: declare i8* @llvm.wasm.lsda() |
| ; CHECK-DAG: declare i32 @_Unwind_CallPersonality(i8*) |
| |
