1; RUN: opt < %s -wasm-lower-em-ehsjlj -S | FileCheck %s 2 3target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 4target triple = "wasm32-unknown-unknown" 5 6@_ZTIi = external constant i8* 7@_ZTIc = external constant i8* 8; CHECK-DAG: __THREW__ = weak_odr global i32 0 9; CHECK-DAG: __threwValue = weak_odr global i32 0 10; CHECK-DAG: __tempRet0 = weak_odr global i32 0 11 12; Test invoke instruction with clauses (try-catch block) 13define void @clause() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 14; CHECK-LABEL: @clause( 15entry: 16 invoke void @foo(i32 3) 17 to label %invoke.cont unwind label %lpad 18; CHECK: entry: 19; CHECK-NEXT: store i32 0, i32* @__THREW__ 20; CHECK-NEXT: call void @__invoke_void_i32(void (i32)* @foo, i32 3) 21; CHECK-NEXT: %[[__THREW__VAL:.*]] = load i32, i32* @__THREW__ 22; CHECK-NEXT: store i32 0, i32* @__THREW__ 23; CHECK-NEXT: %cmp = icmp eq i32 %[[__THREW__VAL]], 1 24; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont 25 26invoke.cont: ; preds = %entry 27 br label %try.cont 28 29lpad: ; preds = %entry 30 %0 = landingpad { i8*, i32 } 31 catch i8* bitcast (i8** @_ZTIi to i8*) 32 catch i8* null 33 %1 = extractvalue { i8*, i32 } %0, 0 34 %2 = extractvalue { i8*, i32 } %0, 1 35 br label %catch.dispatch 36; CHECK: lpad: 37; CHECK-NEXT: %[[FMC:.*]] = call i8* @__cxa_find_matching_catch_4(i8* bitcast (i8** @_ZTIi to i8*), i8* null) 38; CHECK-NEXT: %[[IVI1:.*]] = insertvalue { i8*, i32 } undef, i8* %[[FMC]], 0 39; CHECK-NEXT: %[[TEMPRET0_VAL:.*]] = load i32, i32* @__tempRet0 40; CHECK-NEXT: %[[IVI2:.*]] = insertvalue { i8*, i32 } %[[IVI1]], i32 %[[TEMPRET0_VAL]], 1 41; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 0 42; CHECK-NEXT: %[[CDR:.*]] = extractvalue { i8*, i32 } %[[IVI2]], 1 43 44catch.dispatch: ; preds = %lpad 45 %3 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 46 %matches = icmp eq i32 %2, %3 47 br i1 %matches, label %catch1, label %catch 48; CHECK: catch.dispatch: 49; CHECK-NEXT: %[[TYPEID:.*]] = call i32 @llvm_eh_typeid_for(i8* bitcast (i8** @_ZTIi to i8*)) 50; CHECK-NEXT: %matches = icmp eq i32 %[[CDR]], %[[TYPEID]] 51 52catch1: ; preds = %catch.dispatch 53 %4 = call i8* @__cxa_begin_catch(i8* %1) 54 %5 = bitcast i8* %4 to i32* 55 %6 = load i32, i32* %5, align 4 56 call void @__cxa_end_catch() 57 br label %try.cont 58 59try.cont: ; preds = %catch, %catch1, %invoke.cont 60 ret void 61 62catch: ; preds = %catch.dispatch 63 %7 = call i8* @__cxa_begin_catch(i8* %1) 64 call void @__cxa_end_catch() 65 br label %try.cont 66} 67 68; Test invoke instruction with filters (functions with throw(...) declaration) 69define void @filter() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 70; CHECK-LABEL: @filter( 71entry: 72 invoke void @foo(i32 3) 73 to label %invoke.cont unwind label %lpad 74; CHECK: entry: 75; CHECK-NEXT: store i32 0, i32* @__THREW__ 76; CHECK-NEXT: call void @__invoke_void_i32(void (i32)* @foo, i32 3) 77; CHECK-NEXT: %[[__THREW__VAL:.*]] = load i32, i32* @__THREW__ 78; CHECK-NEXT: store i32 0, i32* @__THREW__ 79; CHECK-NEXT: %cmp = icmp eq i32 %[[__THREW__VAL]], 1 80; CHECK-NEXT: br i1 %cmp, label %lpad, label %invoke.cont 81 82invoke.cont: ; preds = %entry 83 ret void 84 85lpad: ; preds = %entry 86 %0 = landingpad { i8*, i32 } 87 filter [2 x i8*] [i8* bitcast (i8** @_ZTIi to i8*), i8* bitcast (i8** @_ZTIc to i8*)] 88 %1 = extractvalue { i8*, i32 } %0, 0 89 %2 = extractvalue { i8*, i32 } %0, 1 90 br label %filter.dispatch 91; CHECK: lpad: 92; CHECK-NEXT: %[[FMC:.*]] = call i8* @__cxa_find_matching_catch_4(i8* bitcast (i8** @_ZTIi to i8*), i8* bitcast (i8** @_ZTIc to i8*)) 93; CHECK-NEXT: %[[IVI1:.*]] = insertvalue { i8*, i32 } undef, i8* %[[FMC]], 0 94; CHECK-NEXT: %[[TEMPRET0_VAL:.*]] = load i32, i32* @__tempRet0 95; CHECK-NEXT: %[[IVI2:.*]] = insertvalue { i8*, i32 } %[[IVI1]], i32 %[[TEMPRET0_VAL]], 1 96; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 0 97; CHECK-NEXT: extractvalue { i8*, i32 } %[[IVI2]], 1 98 99filter.dispatch: ; preds = %lpad 100 %ehspec.fails = icmp slt i32 %2, 0 101 br i1 %ehspec.fails, label %ehspec.unexpected, label %eh.resume 102 103ehspec.unexpected: ; preds = %filter.dispatch 104 call void @__cxa_call_unexpected(i8* %1) #4 105 unreachable 106 107eh.resume: ; preds = %filter.dispatch 108 %lpad.val = insertvalue { i8*, i32 } undef, i8* %1, 0 109 %lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %2, 1 110 resume { i8*, i32 } %lpad.val3 111; CHECK: eh.resume: 112; CHECK-NEXT: insertvalue 113; CHECK-NEXT: %[[LPAD_VAL:.*]] = insertvalue 114; CHECK-NEXT: %[[LOW:.*]] = extractvalue { i8*, i32 } %[[LPAD_VAL]], 0 115; CHECK-NEXT: call void @__resumeException(i8* %[[LOW]]) 116; CHECK-NEXT: unreachable 117} 118 119; Test if argument attributes indices in newly created call instructions are correct 120define void @arg_attributes() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 121; CHECK-LABEL: @arg_attributes( 122entry: 123 %0 = invoke noalias i8* @bar(i8 signext 1, i8 zeroext 2) 124 to label %invoke.cont unwind label %lpad 125; CHECK: entry: 126; CHECK-NEXT: store i32 0, i32* @__THREW__ 127; CHECK-NEXT: %0 = call noalias i8* @"__invoke_i8*_i8_i8"(i8* (i8, i8)* @bar, i8 signext 1, i8 zeroext 2) 128 129invoke.cont: ; preds = %entry 130 br label %try.cont 131 132lpad: ; preds = %entry 133 %1 = landingpad { i8*, i32 } 134 catch i8* bitcast (i8** @_ZTIi to i8*) 135 catch i8* null 136 %2 = extractvalue { i8*, i32 } %1, 0 137 %3 = extractvalue { i8*, i32 } %1, 1 138 br label %catch.dispatch 139 140catch.dispatch: ; preds = %lpad 141 %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 142 %matches = icmp eq i32 %3, %4 143 br i1 %matches, label %catch1, label %catch 144 145catch1: ; preds = %catch.dispatch 146 %5 = call i8* @__cxa_begin_catch(i8* %2) 147 %6 = bitcast i8* %5 to i32* 148 %7 = load i32, i32* %6, 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 %8 = call i8* @__cxa_begin_catch(i8* %2) 157 call void @__cxa_end_catch() 158 br label %try.cont 159} 160 161declare void @foo(i32) 162declare i8* @bar(i8, i8) 163 164declare i32 @__gxx_personality_v0(...) 165declare i32 @llvm.eh.typeid.for(i8*) 166declare i8* @__cxa_begin_catch(i8*) 167declare void @__cxa_end_catch() 168declare void @__cxa_call_unexpected(i8*) 169 170; JS glue functions and invoke wrappers declaration 171; CHECK-DAG: declare void @__resumeException(i8*) 172; CHECK-DAG: declare void @__invoke_void_i32(void (i32)*, i32) 173; CHECK-DAG: declare i8* @__cxa_find_matching_catch_4(i8*, i8*) 174 175; setThrew function creation 176; CHECK-LABEL: define weak_odr void @setThrew(i32 %threw, i32 %value) { 177; CHECK: entry: 178; CHECK-NEXT: %__THREW__.val = load i32, i32* @__THREW__ 179; CHECK-NEXT: %cmp = icmp eq i32 %__THREW__.val, 0 180; CHECK-NEXT: br i1 %cmp, label %if.then, label %if.end 181; CHECK: if.then: 182; CHECK-NEXT: store i32 %threw, i32* @__THREW__ 183; CHECK-NEXT: store i32 %value, i32* @__threwValue 184; CHECK-NEXT: br label %if.end 185; CHECK: if.end: 186; CHECK-NEXT: ret void 187; CHECK: } 188 189; setTempRet0 function creation 190; CHECK-LABEL: define weak_odr void @setTempRet0(i32 %value) { 191; CHECK: entry: 192; CHECK-NEXT: store i32 %value, i32* @__tempRet0 193; CHECK-NEXT: ret void 194; CHECK: } 195