1; RUN: opt < %s -wasm-lower-em-ehsjlj -enable-emscripten-cxx-exceptions -S | FileCheck %s -DPTR=i32 2; RUN: opt < %s -wasm-lower-em-ehsjlj -enable-emscripten-cxx-exceptions -S --mattr=+atomics,+bulk-memory | FileCheck %s -DPTR=i32 3; RUN: opt < %s -wasm-lower-em-ehsjlj -enable-emscripten-cxx-exceptions --mtriple=wasm64-unknown-unknown -data-layout="e-m:e-p:64:64-i64:64-n32:64-S128" -S | FileCheck %s -DPTR=i64 4 5target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 6target triple = "wasm32-unknown-unknown" 7 8@_ZTIi = external constant ptr 9@_ZTIc = external constant ptr 10; CHECK: @__THREW__ = external thread_local global [[PTR]] 11; __threwValue is only used in Emscripten SjLj, so it shouldn't be generated. 12; CHECK-NOT: @__threwValue = 13 14; Test invoke instruction with clauses (try-catch block) 15define void @clause() personality ptr @__gxx_personality_v0 { 16; CHECK-LABEL: @clause( 17entry: 18 invoke void @foo(i32 3) 19 to label %invoke.cont unwind label %lpad 20; CHECK: entry: 21; CHECK-NEXT: store [[PTR]] 0, ptr @__THREW__ 22; CHECK-NEXT: call cc{{.*}} void @__invoke_void_i32(ptr @foo, i32 3) 23; CHECK-NEXT: %[[__THREW__VAL:.*]] = load [[PTR]], ptr @__THREW__ 24; CHECK-NEXT: store [[PTR]] 0, ptr @__THREW__ 25; CHECK-NEXT: %cmp = icmp eq [[PTR]] %[[__THREW__VAL]], 1 26; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont 27 28invoke.cont: ; preds = %entry 29 br label %try.cont 30 31lpad: ; preds = %entry 32 %0 = landingpad { ptr, i32 } 33 catch ptr @_ZTIi 34 catch ptr null 35 %1 = extractvalue { ptr, i32 } %0, 0 36 %2 = extractvalue { ptr, i32 } %0, 1 37 br label %catch.dispatch 38; CHECK: lpad: 39; CHECK-NEXT: %[[FMC:.*]] = call ptr @__cxa_find_matching_catch_4(ptr @_ZTIi, ptr null) 40; CHECK-NEXT: %[[IVI1:.*]] = insertvalue { ptr, i32 } poison, ptr %[[FMC]], 0 41; CHECK-NEXT: %[[TEMPRET0_VAL:.*]] = call i32 @getTempRet0() 42; CHECK-NEXT: %[[IVI2:.*]] = insertvalue { ptr, i32 } %[[IVI1]], i32 %[[TEMPRET0_VAL]], 1 43; CHECK-NEXT: extractvalue { ptr, i32 } %[[IVI2]], 0 44; CHECK-NEXT: %[[CDR:.*]] = extractvalue { ptr, i32 } %[[IVI2]], 1 45 46catch.dispatch: ; preds = %lpad 47 %3 = call i32 @llvm.eh.typeid.for.p0(ptr @_ZTIi) 48 %matches = icmp eq i32 %2, %3 49 br i1 %matches, label %catch1, label %catch 50; CHECK: catch.dispatch: 51; CHECK-NEXT: %[[TYPEID:.*]] = call i32 @llvm_eh_typeid_for(ptr @_ZTIi) 52; CHECK-NEXT: %matches = icmp eq i32 %[[CDR]], %[[TYPEID]] 53 54catch1: ; preds = %catch.dispatch 55 %4 = call ptr @__cxa_begin_catch(ptr %1) 56 %5 = load i32, ptr %4, align 4 57 call void @__cxa_end_catch() 58 br label %try.cont 59 60try.cont: ; preds = %catch, %catch1, %invoke.cont 61 ret void 62 63catch: ; preds = %catch.dispatch 64 %6 = call ptr @__cxa_begin_catch(ptr %1) 65 call void @__cxa_end_catch() 66 br label %try.cont 67} 68 69; Test invoke instruction with filters (functions with throw(...) declaration) 70; Currently we don't support exception specifications correctly in JS glue code, 71; so we ignore all filters here. 72; See https://github.com/llvm/llvm-project/issues/49740. 73define void @filter() personality ptr @__gxx_personality_v0 { 74; CHECK-LABEL: @filter( 75entry: 76 invoke void @foo(i32 3) 77 to label %invoke.cont unwind label %lpad 78; CHECK: entry: 79; CHECK-NEXT: store [[PTR]] 0, ptr @__THREW__ 80; CHECK-NEXT: call cc{{.*}} void @__invoke_void_i32(ptr @foo, i32 3) 81; CHECK-NEXT: %[[__THREW__VAL:.*]] = load [[PTR]], ptr @__THREW__ 82; CHECK-NEXT: store [[PTR]] 0, ptr @__THREW__ 83; CHECK-NEXT: %cmp = icmp eq [[PTR]] %[[__THREW__VAL]], 1 84; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont 85 86invoke.cont: ; preds = %entry 87 ret void 88 89lpad: ; preds = %entry 90 %0 = landingpad { ptr, i32 } 91 filter [2 x ptr] [ptr @_ZTIi, ptr @_ZTIc] 92 %1 = extractvalue { ptr, i32 } %0, 0 93 %2 = extractvalue { ptr, i32 } %0, 1 94 br label %filter.dispatch 95; CHECK: lpad: 96; We now temporarily ignore filters because of the bug, so we pass nothing to 97; __cxa_find_matching_catch 98; CHECK-NEXT: %[[FMC:.*]] = call ptr @__cxa_find_matching_catch_2() 99 100filter.dispatch: ; preds = %lpad 101 %ehspec.fails = icmp slt i32 %2, 0 102 br i1 %ehspec.fails, label %ehspec.unexpected, label %eh.resume 103 104ehspec.unexpected: ; preds = %filter.dispatch 105 call void @__cxa_call_unexpected(ptr %1) #4 106 unreachable 107 108eh.resume: ; preds = %filter.dispatch 109 %lpad.val = insertvalue { ptr, i32 } poison, ptr %1, 0 110 %lpad.val3 = insertvalue { ptr, i32 } %lpad.val, i32 %2, 1 111 resume { ptr, i32 } %lpad.val3 112; CHECK: eh.resume: 113; CHECK-NEXT: insertvalue 114; CHECK-NEXT: %[[LPAD_VAL:.*]] = insertvalue 115; CHECK-NEXT: %[[LOW:.*]] = extractvalue { ptr, i32 } %[[LPAD_VAL]], 0 116; CHECK-NEXT: call void @__resumeException(ptr %[[LOW]]) 117; CHECK-NEXT: unreachable 118} 119 120; Test if argument attributes indices in newly created call instructions are correct 121define void @arg_attributes() personality ptr @__gxx_personality_v0 { 122; CHECK-LABEL: @arg_attributes( 123entry: 124 %0 = invoke noalias ptr @bar(i8 signext 1, i8 zeroext 2) 125 to label %invoke.cont unwind label %lpad 126; CHECK: entry: 127; CHECK-NEXT: store [[PTR]] 0, ptr @__THREW__ 128; CHECK-NEXT: %0 = call cc{{.*}} noalias ptr @__invoke_ptr_i8_i8(ptr @bar, i8 signext 1, i8 zeroext 2) 129 130invoke.cont: ; preds = %entry 131 br label %try.cont 132 133lpad: ; preds = %entry 134 %1 = landingpad { ptr, i32 } 135 catch ptr @_ZTIi 136 catch ptr null 137 %2 = extractvalue { ptr, i32 } %1, 0 138 %3 = extractvalue { ptr, i32 } %1, 1 139 br label %catch.dispatch 140 141catch.dispatch: ; preds = %lpad 142 %4 = call i32 @llvm.eh.typeid.for.p0(ptr @_ZTIi) 143 %matches = icmp eq i32 %3, %4 144 br i1 %matches, label %catch1, label %catch 145 146catch1: ; preds = %catch.dispatch 147 %5 = call ptr @__cxa_begin_catch(ptr %2) 148 %6 = load i32, ptr %5, align 4 149 call void @__cxa_end_catch() 150 br label %try.cont 151 152try.cont: ; preds = %catch, %catch1, %invoke.cont 153 ret void 154 155catch: ; preds = %catch.dispatch 156 %7 = call ptr @__cxa_begin_catch(ptr %2) 157 call void @__cxa_end_catch() 158 br label %try.cont 159} 160 161declare void @foo(i32) 162declare ptr @bar(i8, i8) 163 164declare i32 @__gxx_personality_v0(...) 165declare i32 @llvm.eh.typeid.for.p0(ptr) 166declare ptr @__cxa_begin_catch(ptr) 167declare void @__cxa_end_catch() 168declare void @__cxa_call_unexpected(ptr) 169 170; JS glue functions and invoke wrappers declaration 171; CHECK-DAG: declare i32 @getTempRet0() 172; CHECK-DAG: declare void @__resumeException(ptr) 173; CHECK-DAG: declare void @__invoke_void_i32(ptr, i32) 174; CHECK-DAG: declare ptr @__cxa_find_matching_catch_4(ptr, ptr) 175