1 ; RUN: opt < %s -wasm-lower-em-ehsjlj -S | FileCheck %s 2 3 target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 4 target 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) 13 define void @clause() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 14 ; CHECK-LABEL: @clause( 15 entry: 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 26 invoke.cont: ; preds = %entry 27 br label %try.cont 28 29 lpad: ; 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 44 catch.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 52 catch1: ; 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 59 try.cont: ; preds = %catch, %catch1, %invoke.cont 60 ret void 61 62 catch: ; 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) 69 define void @filter() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 70 ; CHECK-LABEL: @filter( 71 entry: 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 82 invoke.cont: ; preds = %entry 83 ret void 84 85 lpad: ; 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 99 filter.dispatch: ; preds = %lpad 100 %ehspec.fails = icmp slt i32 %2, 0 101 br i1 %ehspec.fails, label %ehspec.unexpected, label %eh.resume 102 103 ehspec.unexpected: ; preds = %filter.dispatch 104 call void @__cxa_call_unexpected(i8* %1) #4 105 unreachable 106 107 eh.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 120 define void @arg_attributes() personality i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*) { 121 ; CHECK-LABEL: @arg_attributes( 122 entry: 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) 128 129 invoke.cont: ; preds = %entry 130 br label %try.cont 131 132 lpad: ; 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 139 140 catch.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 144 145 catch1: ; 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 151 152 try.cont: ; preds = %catch, %catch1, %invoke.cont 153 ret void 154 155 catch: ; preds = %catch.dispatch 156 %8 = call i8* @__cxa_begin_catch(i8* %2) 157 call void @__cxa_end_catch() 158 br label %try.cont 159 } 160 161 declare void @foo(i32) 162 declare i8* @bar(i8, i8) 163 164 declare i32 @__gxx_personality_v0(...) 165 declare i32 @llvm.eh.typeid.for(i8*) 166 declare i8* @__cxa_begin_catch(i8*) 167 declare void @__cxa_end_catch() 168 declare 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
