1 ; RUN: not llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -exception-model=wasm 2 ; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -exception-model=wasm -mattr=+exception-handling | FileCheck -allow-deprecated-dag-overlap %s 3 4 target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" 5 target triple = "wasm32-unknown-unknown" 6 7 %struct.Cleanup = type { i8 } 8 9 @_ZTIi = external constant i8* 10 11 declare void @llvm.wasm.throw(i32, i8*) 12 13 ; CHECK-LABEL: test_throw: 14 ; CHECK-NEXT: i32.const $push0=, 0 15 ; CHECK-NEXT: throw 0, $pop0 16 define void @test_throw() { 17 call void @llvm.wasm.throw(i32 0, i8* null) 18 ret void 19 } 20 21 ; CHECK-LABEL: test_catch_rethrow: 22 ; CHECK: call foo@FUNCTION 23 ; CHECK: i32.catch $push{{.+}}=, 0 24 ; CHECK-DAG: i32.store __wasm_lpad_context 25 ; CHECK-DAG: i32.store __wasm_lpad_context+4 26 ; CHECK: i32.call $push{{.+}}=, _Unwind_CallPersonality@FUNCTION 27 ; CHECK: i32.call $push{{.+}}=, __cxa_begin_catch@FUNCTION 28 ; CHECK: call __cxa_end_catch@FUNCTION 29 ; CHECK: call __cxa_rethrow@FUNCTION 30 ; CHECK-NEXT: rethrow 31 define void @test_catch_rethrow() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { 32 entry: 33 invoke void @foo() 34 to label %try.cont unwind label %catch.dispatch 35 36 catch.dispatch: ; preds = %entry 37 %0 = catchswitch within none [label %catch.start] unwind to caller 38 39 catch.start: ; preds = %catch.dispatch 40 %1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)] 41 %2 = call i8* @llvm.wasm.get.exception(token %1) 42 %3 = call i32 @llvm.wasm.get.ehselector(token %1) 43 %4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) 44 %matches = icmp eq i32 %3, %4 45 br i1 %matches, label %catch, label %rethrow 46 47 catch: ; preds = %catch.start 48 %5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ] 49 call void @__cxa_end_catch() [ "funclet"(token %1) ] 50 catchret from %1 to label %try.cont 51 52 rethrow: ; preds = %catch.start 53 call void @__cxa_rethrow() [ "funclet"(token %1) ] 54 unreachable 55 56 try.cont: ; preds = %entry, %catch 57 ret void 58 } 59 60 ; CHECK-LABEL: test_cleanup: 61 ; CHECK: call foo@FUNCTION 62 ; CHECK: catch_all 63 ; CHECK: i32.call $push20=, _ZN7CleanupD1Ev@FUNCTION 64 ; CHECK: rethrow 65 define void @test_cleanup() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { 66 entry: 67 %c = alloca %struct.Cleanup, align 1 68 invoke void @foo() 69 to label %invoke.cont unwind label %ehcleanup 70 71 invoke.cont: ; preds = %entry 72 %call = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) 73 ret void 74 75 ehcleanup: ; preds = %entry 76 %0 = cleanuppad within none [] 77 %call1 = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) [ "funclet"(token %0) ] 78 cleanupret from %0 unwind to caller 79 } 80 81 ; - Tests multple terminate pads are merged into one 82 ; - Tests a catch_all terminate pad is created after a catch terminate pad 83 84 ; CHECK-LABEL: test_terminatepad 85 ; CHECK: i32.catch 86 ; CHECK: call __clang_call_terminate@FUNCTION 87 ; CHECK: unreachable 88 ; CHECK: catch_all 89 ; CHECK: call _ZSt9terminatev@FUNCTION 90 ; CHECK-NOT: call __clang_call_terminate@FUNCTION 91 define hidden i32 @test_terminatepad() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) { 92 entry: 93 %c = alloca %struct.Cleanup, align 1 94 %c1 = alloca %struct.Cleanup, align 1 95 invoke void @foo() 96 to label %invoke.cont unwind label %ehcleanup 97 98 invoke.cont: ; preds = %entry 99 %call = invoke %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c1) 100 to label %try.cont unwind label %catch.dispatch 101 102 ehcleanup: ; preds = %entry 103 %0 = cleanuppad within none [] 104 %call4 = invoke %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c1) [ "funclet"(token %0) ] 105 to label %invoke.cont3 unwind label %terminate 106 107 invoke.cont3: ; preds = %ehcleanup 108 cleanupret from %0 unwind label %catch.dispatch 109 110 catch.dispatch: ; preds = %invoke.cont3, %invoke.cont 111 %1 = catchswitch within none [label %catch.start] unwind label %ehcleanup7 112 113 catch.start: ; preds = %catch.dispatch 114 %2 = catchpad within %1 [i8* null] 115 %3 = call i8* @llvm.wasm.get.exception(token %2) 116 %4 = call i32 @llvm.wasm.get.ehselector(token %2) 117 %5 = call i8* @__cxa_begin_catch(i8* %3) [ "funclet"(token %2) ] 118 invoke void @__cxa_end_catch() [ "funclet"(token %2) ] 119 to label %invoke.cont5 unwind label %ehcleanup7 120 121 invoke.cont5: ; preds = %catch.start 122 catchret from %2 to label %try.cont 123 124 try.cont: ; preds = %invoke.cont5, %invoke.cont 125 %call6 = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) 126 ret i32 0 127 128 ehcleanup7: ; preds = %catch.start, %catch.dispatch 129 %6 = cleanuppad within none [] 130 %call9 = invoke %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) [ "funclet"(token %6) ] 131 to label %invoke.cont8 unwind label %terminate10 132 133 invoke.cont8: ; preds = %ehcleanup7 134 cleanupret from %6 unwind to caller 135 136 terminate: ; preds = %ehcleanup 137 %7 = cleanuppad within %0 [] 138 %8 = call i8* @llvm.wasm.get.exception(token %7) 139 call void @__clang_call_terminate(i8* %8) [ "funclet"(token %7) ] 140 unreachable 141 142 terminate10: ; preds = %ehcleanup7 143 %9 = cleanuppad within %6 [] 144 %10 = call i8* @llvm.wasm.get.exception(token %9) 145 call void @__clang_call_terminate(i8* %10) [ "funclet"(token %9) ] 146 unreachable 147 } 148 149 declare void @foo() 150 declare i32 @__gxx_wasm_personality_v0(...) 151 declare i8* @llvm.wasm.get.exception(token) 152 declare i32 @llvm.wasm.get.ehselector(token) 153 declare i32 @llvm.eh.typeid.for(i8*) 154 declare i8* @__cxa_begin_catch(i8*) 155 declare void @__cxa_end_catch() 156 declare void @__cxa_rethrow() 157 declare void @__clang_call_terminate(i8*) 158 declare void @_ZSt9terminatev() 159 declare %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* returned) 160
