615 lines
23 KiB
LLVM
615 lines
23 KiB
LLVM
; RUN: opt < %s -winehprepare -demote-catchswitch-only -wasmehprepare -S | FileCheck %s
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target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
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target triple = "wasm32-unknown-unknown"
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; CHECK: @__wasm_lpad_context = external global { i32, i8*, i32 }
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@_ZTIi = external constant i8*
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%struct.Temp = type { i8 }
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; A single 'catch (int)' clause.
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; A wasm.catch() call, wasm.lsda() call, and personality call to generate a
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; selector should all be genereated after the catchpad.
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;
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; void foo();
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; void test0() {
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; try {
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; foo();
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; } catch (int) {
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; }
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; }
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define void @test0() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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; CHECK-LABEL: @test0()
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entry:
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invoke void @foo()
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch.start] unwind to caller
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catch.start: ; preds = %catch.dispatch
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%1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)]
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%2 = call i8* @llvm.wasm.get.exception(token %1)
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%3 = call i32 @llvm.wasm.get.ehselector(token %1)
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %3, %4
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br i1 %matches, label %catch, label %rethrow
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; CHECK: catch.start:
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; CHECK-NEXT: %[[CATCHPAD:.*]] = catchpad
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; CHECK-NEXT: %[[EXN:.*]] = call i8* @llvm.wasm.catch(i32 0)
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; CHECK-NEXT: call void @llvm.wasm.landingpad.index(token %[[CATCHPAD]], i32 0)
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; CHECK-NEXT: store i32 0, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 0)
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; CHECK-NEXT: %[[LSDA:.*]] = call i8* @llvm.wasm.lsda()
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; CHECK-NEXT: store i8* %[[LSDA]], i8** getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 1)
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; CHECK-NEXT: call i32 @_Unwind_CallPersonality(i8* %[[EXN]]) {{.*}} [ "funclet"(token %[[CATCHPAD]]) ]
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; CHECK-NEXT: %[[SELECTOR:.*]] = load i32, i32* getelementptr inbounds ({ i32, i8*, i32 }, { i32, i8*, i32 }* @__wasm_lpad_context, i32 0, i32 2)
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; CHECK: icmp eq i32 %[[SELECTOR]]
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catch: ; preds = %catch.start
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%5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
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call void @__cxa_end_catch() [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont
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; CHECK: catch:
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; CHECK-NEXT: call i8* @__cxa_begin_catch(i8* %[[EXN]])
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rethrow: ; preds = %catch.start
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call void @llvm.wasm.rethrow() [ "funclet"(token %1) ]
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unreachable
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try.cont: ; preds = %entry, %catch
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ret void
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}
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; Two try-catches.
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; For the catchpad with a single 'catch (...)', only a wasm.catch() call should
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; be generated after the catchpad; wasm.landingpad.index() and personality call
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; should NOT be generated. For the other catchpad, the argument of
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; wasm.landingpad.index() should be not 1 but 0.
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;
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; void foo();
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; void test1() {
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; try {
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; foo();
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; } catch (...) {
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; }
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; try {
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; foo();
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; } catch (int) {
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; }
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; }
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define void @test1() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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; CHECK-LABEL: @test1()
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entry:
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invoke void @foo()
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to label %try.cont unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch.start] unwind to caller
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catch.start: ; preds = %catch.dispatch
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%1 = catchpad within %0 [i8* null]
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%2 = call i8* @llvm.wasm.get.exception(token %1)
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%3 = call i32 @llvm.wasm.get.ehselector(token %1)
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%4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
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call void @__cxa_end_catch() [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont
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; CHECK: catch.start:
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; CHECK-NEXT: catchpad within %0 [i8* null]
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; CHECK-NOT: call void @llvm.wasm.landingpad.index
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; CHECK-NOT: store {{.*}} @__wasm_lpad_context
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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; CHECK-NOT: call i32 @_Unwind_CallPersonality
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; CHECK-NOT: load {{.*}} @__wasm_lpad_context
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try.cont: ; preds = %entry, %catch.start
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invoke void @foo()
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to label %try.cont7 unwind label %catch.dispatch2
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catch.dispatch2: ; preds = %try.cont
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%5 = catchswitch within none [label %catch.start3] unwind to caller
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catch.start3: ; preds = %catch.dispatch2
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%6 = catchpad within %5 [i8* bitcast (i8** @_ZTIi to i8*)]
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%7 = call i8* @llvm.wasm.get.exception(token %6)
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%8 = call i32 @llvm.wasm.get.ehselector(token %6)
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%9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %8, %9
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br i1 %matches, label %catch4, label %rethrow
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; CHECK: catch.start3:
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; CHECK: call void @llvm.wasm.landingpad.index(token %{{.+}}, i32 0)
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catch4: ; preds = %catch.start3
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%10 = call i8* @__cxa_begin_catch(i8* %7) [ "funclet"(token %6) ]
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call void @__cxa_end_catch() [ "funclet"(token %6) ]
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catchret from %6 to label %try.cont7
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rethrow: ; preds = %catch.start3
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call void @llvm.wasm.rethrow() [ "funclet"(token %6) ]
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unreachable
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try.cont7: ; preds = %try.cont, %catch4
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ret void
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}
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; A nested try-catch within a catch. The outer catch catches 'int'.
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;
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; void foo();
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; void test2() {
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; try {
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; foo();
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; } catch (int) {
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; try {
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; foo();
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; } catch (int) {
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; }
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; }
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; }
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; Within the nested catchpad, wasm.lsda() call should NOT be generated.
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define void @test2() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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; CHECK-LABEL: @test2()
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entry:
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invoke void @foo()
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to label %try.cont9 unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch.start] unwind to caller
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catch.start: ; preds = %catch.dispatch
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%1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)]
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%2 = call i8* @llvm.wasm.get.exception(token %1)
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%3 = call i32 @llvm.wasm.get.ehselector(token %1)
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %3, %4
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br i1 %matches, label %catch, label %rethrow
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; CHECK: catch.start:
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; CHECK: call i8* @llvm.wasm.lsda()
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catch: ; preds = %catch.start
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%5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
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invoke void @foo() [ "funclet"(token %1) ]
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to label %try.cont unwind label %catch.dispatch2
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catch.dispatch2: ; preds = %catch
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%6 = catchswitch within %1 [label %catch.start3] unwind label %ehcleanup
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catch.start3: ; preds = %catch.dispatch2
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%7 = catchpad within %6 [i8* bitcast (i8** @_ZTIi to i8*)]
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%8 = call i8* @llvm.wasm.get.exception(token %7)
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%9 = call i32 @llvm.wasm.get.ehselector(token %7)
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%10 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches4 = icmp eq i32 %9, %10
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br i1 %matches4, label %catch6, label %rethrow5
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; CHECK: catch.start3:
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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catch6: ; preds = %catch.start3
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%11 = call i8* @__cxa_begin_catch(i8* %8) [ "funclet"(token %7) ]
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call void @__cxa_end_catch() [ "funclet"(token %7) ]
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catchret from %7 to label %try.cont
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rethrow5: ; preds = %catch.start3
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invoke void @llvm.wasm.rethrow() [ "funclet"(token %7) ]
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to label %unreachable unwind label %ehcleanup
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try.cont: ; preds = %catch, %catch6
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call void @__cxa_end_catch() [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont9
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rethrow: ; preds = %catch.start
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call void @llvm.wasm.rethrow() [ "funclet"(token %1) ]
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unreachable
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try.cont9: ; preds = %entry, %try.cont
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ret void
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ehcleanup: ; preds = %rethrow5, %catch.dispatch2
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%12 = cleanuppad within %1 []
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call void @__cxa_end_catch() [ "funclet"(token %12) ]
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cleanupret from %12 unwind to caller
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; CHECK: ehcleanup:
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; CHECK-NEXT: cleanuppad
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; CHECK-NOT: call void @llvm.wasm.landingpad.index
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; CHECK-NOT: store {{.*}} @__wasm_lpad_context
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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; CHECK-NOT: call i32 @_Unwind_CallPersonality
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; CHECK-NOT: load {{.*}} @__wasm_lpad_context
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unreachable: ; preds = %rethrow5
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unreachable
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}
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; A nested try-catch within a catch. The outer catch is (...).
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;
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; void foo();
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; void test2() {
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; try {
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; foo();
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; } catch (...) {
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; try {
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; foo();
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; } catch (int) {
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; }
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; }
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; }
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; Within the innermost catchpad, wasm.lsda() call should be generated, because
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; the outer catch is 'catch (...)', which does not need wasm.lsda() call.
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define void @test3() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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; CHECK-LABEL: @test3()
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entry:
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invoke void @foo()
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to label %try.cont8 unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch.start] unwind to caller
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catch.start: ; preds = %catch.dispatch
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%1 = catchpad within %0 [i8* null]
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%2 = call i8* @llvm.wasm.get.exception(token %1)
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%3 = call i32 @llvm.wasm.get.ehselector(token %1)
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%4 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
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invoke void @foo() [ "funclet"(token %1) ]
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to label %try.cont unwind label %catch.dispatch2
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; CHECK: catch.start:
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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catch.dispatch2: ; preds = %catch.start
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%5 = catchswitch within %1 [label %catch.start3] unwind label %ehcleanup
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catch.start3: ; preds = %catch.dispatch2
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%6 = catchpad within %5 [i8* bitcast (i8** @_ZTIi to i8*)]
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%7 = call i8* @llvm.wasm.get.exception(token %6)
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%8 = call i32 @llvm.wasm.get.ehselector(token %6)
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%9 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %8, %9
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br i1 %matches, label %catch4, label %rethrow
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; CHECK: catch.start3:
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; CHECK: call i8* @llvm.wasm.lsda()
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catch4: ; preds = %catch.start3
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%10 = call i8* @__cxa_begin_catch(i8* %7) [ "funclet"(token %6) ]
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%11 = bitcast i8* %10 to i32*
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%12 = load i32, i32* %11, align 4
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call void @__cxa_end_catch() [ "funclet"(token %6) ]
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catchret from %6 to label %try.cont
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rethrow: ; preds = %catch.start3
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invoke void @llvm.wasm.rethrow() [ "funclet"(token %6) ]
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to label %unreachable unwind label %ehcleanup
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try.cont: ; preds = %catch.start, %catch4
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call void @__cxa_end_catch() [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont8
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try.cont8: ; preds = %entry, %try.cont
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ret void
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ehcleanup: ; preds = %rethrow, %catch.dispatch2
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%13 = cleanuppad within %1 []
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invoke void @__cxa_end_catch() [ "funclet"(token %13) ]
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to label %invoke.cont6 unwind label %terminate
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invoke.cont6: ; preds = %ehcleanup
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cleanupret from %13 unwind to caller
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unreachable: ; preds = %rethrow
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unreachable
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terminate: ; preds = %ehcleanup
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%14 = cleanuppad within %13 []
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%15 = call i8* @llvm.wasm.get.exception(token %14)
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call void @__clang_call_terminate(i8* %15) [ "funclet"(token %14) ]
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unreachable
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}
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; void foo();
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; void test4() {
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; try {
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; foo();
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; } catch (int) {
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; try {
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; foo();
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; } catch (...) {
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; try {
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; foo();
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; } catch (int) {
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; }
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; }
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; }
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; }
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; wasm.lsda() call should be generated only once in the outermost catchpad. The
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; innermost 'catch (int)' can reuse the wasm.lsda() generated in the outermost
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; catch.
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define void @test4() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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; CHECK-LABEL: @test4()
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entry:
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invoke void @foo()
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to label %try.cont19 unwind label %catch.dispatch
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catch.dispatch: ; preds = %entry
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%0 = catchswitch within none [label %catch.start] unwind to caller
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catch.start: ; preds = %catch.dispatch
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%1 = catchpad within %0 [i8* bitcast (i8** @_ZTIi to i8*)]
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%2 = call i8* @llvm.wasm.get.exception(token %1)
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%3 = call i32 @llvm.wasm.get.ehselector(token %1)
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%4 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches = icmp eq i32 %3, %4
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br i1 %matches, label %catch, label %rethrow
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; CHECK: catch.start:
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; CHECK: call i8* @llvm.wasm.lsda()
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catch: ; preds = %catch.start
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%5 = call i8* @__cxa_begin_catch(i8* %2) [ "funclet"(token %1) ]
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%6 = bitcast i8* %5 to i32*
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%7 = load i32, i32* %6, align 4
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invoke void @foo() [ "funclet"(token %1) ]
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to label %try.cont16 unwind label %catch.dispatch2
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catch.dispatch2: ; preds = %catch
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%8 = catchswitch within %1 [label %catch.start3] unwind label %ehcleanup17
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catch.start3: ; preds = %catch.dispatch2
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%9 = catchpad within %8 [i8* null]
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%10 = call i8* @llvm.wasm.get.exception(token %9)
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%11 = call i32 @llvm.wasm.get.ehselector(token %9)
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%12 = call i8* @__cxa_begin_catch(i8* %10) [ "funclet"(token %9) ]
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invoke void @foo() [ "funclet"(token %9) ]
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to label %try.cont unwind label %catch.dispatch7
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; CHECK: catch.start3:
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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catch.dispatch7: ; preds = %catch.start3
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%13 = catchswitch within %9 [label %catch.start8] unwind label %ehcleanup
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catch.start8: ; preds = %catch.dispatch7
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%14 = catchpad within %13 [i8* bitcast (i8** @_ZTIi to i8*)]
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%15 = call i8* @llvm.wasm.get.exception(token %14)
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%16 = call i32 @llvm.wasm.get.ehselector(token %14)
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%17 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*))
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%matches9 = icmp eq i32 %16, %17
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br i1 %matches9, label %catch11, label %rethrow10
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; CHECK: catch.start8:
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; CHECK-NOT: call i8* @llvm.wasm.lsda()
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catch11: ; preds = %catch.start8
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%18 = call i8* @__cxa_begin_catch(i8* %15) [ "funclet"(token %14) ]
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%19 = bitcast i8* %18 to i32*
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%20 = load i32, i32* %19, align 4
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call void @__cxa_end_catch() [ "funclet"(token %14) ]
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catchret from %14 to label %try.cont
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rethrow10: ; preds = %catch.start8
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invoke void @llvm.wasm.rethrow() [ "funclet"(token %14) ]
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to label %unreachable unwind label %ehcleanup
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try.cont: ; preds = %catch.start3, %catch11
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invoke void @__cxa_end_catch() [ "funclet"(token %9) ]
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to label %invoke.cont13 unwind label %ehcleanup17
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invoke.cont13: ; preds = %try.cont
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catchret from %9 to label %try.cont16
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try.cont16: ; preds = %catch, %invoke.cont13
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call void @__cxa_end_catch() [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont19
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rethrow: ; preds = %catch.start
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call void @llvm.wasm.rethrow() [ "funclet"(token %1) ]
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unreachable
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try.cont19: ; preds = %entry, %try.cont16
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ret void
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ehcleanup: ; preds = %rethrow10, %catch.dispatch7
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%21 = cleanuppad within %9 []
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invoke void @__cxa_end_catch() [ "funclet"(token %21) ]
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to label %invoke.cont14 unwind label %terminate
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invoke.cont14: ; preds = %ehcleanup
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cleanupret from %21 unwind label %ehcleanup17
|
|
|
|
ehcleanup17: ; preds = %invoke.cont14, %try.cont, %catch.dispatch2
|
|
%22 = cleanuppad within %1 []
|
|
call void @__cxa_end_catch() [ "funclet"(token %22) ]
|
|
cleanupret from %22 unwind to caller
|
|
|
|
unreachable: ; preds = %rethrow10
|
|
unreachable
|
|
|
|
terminate: ; preds = %ehcleanup
|
|
%23 = cleanuppad within %21 []
|
|
%24 = call i8* @llvm.wasm.get.exception(token %23)
|
|
call void @__clang_call_terminate(i8* %24) [ "funclet"(token %23) ]
|
|
unreachable
|
|
}
|
|
|
|
; A cleanuppad with a call to __clang_call_terminate().
|
|
;
|
|
; void foo();
|
|
; void test5() {
|
|
; try {
|
|
; foo();
|
|
; } catch (...) {
|
|
; foo();
|
|
; }
|
|
; }
|
|
define void @test5() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
|
|
; CHECK-LABEL: @test5
|
|
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
|
|
; 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.
|
|
;
|
|
; void foo();
|
|
; int bar(int) noexcept;
|
|
; struct Temp {
|
|
; ~Temp() {}
|
|
; };
|
|
;
|
|
; void test6() {
|
|
; int num;
|
|
; try {
|
|
; Temp t;
|
|
; num = 1;
|
|
; foo();
|
|
; num = 2;
|
|
; foo();
|
|
; } catch (...) {
|
|
; bar(num);
|
|
; }
|
|
; try {
|
|
; foo();
|
|
; num = 1;
|
|
; foo();
|
|
; num = 2;
|
|
; } catch (...) {
|
|
; bar(num);
|
|
; }
|
|
; }
|
|
define void @test6() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
|
|
; CHECK-LABEL: @test6
|
|
entry:
|
|
%t = alloca %struct.Temp, 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.Temp* @_ZN4TempD2Ev(%struct.Temp* %t)
|
|
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.Temp* @_ZN4TempD2Ev(%struct.Temp* %t) [ "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 @bar(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 @bar(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
|
|
}
|
|
|
|
; Tests if instructions after a call to @llvm.wasm.throw are deleted and the
|
|
; BB's dead children are deleted.
|
|
|
|
; CHECK-LABEL: @test7
|
|
define i32 @test7(i1 %b, i8* %p) {
|
|
entry:
|
|
br i1 %b, label %bb.true, label %bb.false
|
|
|
|
; CHECK: bb.true:
|
|
; CHECK-NEXT: call void @llvm.wasm.throw(i32 0, i8* %p)
|
|
; CHECK-NEXT: unreachable
|
|
bb.true: ; preds = %entry
|
|
call void @llvm.wasm.throw(i32 0, i8* %p)
|
|
br label %bb.true.0
|
|
|
|
; CHECK-NOT: bb.true.0
|
|
bb.true.0: ; preds = %bb.true
|
|
br label %merge
|
|
|
|
; CHECK: bb.false
|
|
bb.false: ; preds = %entry
|
|
br label %merge
|
|
|
|
; CHECK: merge
|
|
merge: ; preds = %bb.true.0, %bb.false
|
|
ret i32 0
|
|
}
|
|
|
|
declare void @foo()
|
|
declare void @bar(i32)
|
|
declare %struct.Temp* @_ZN4TempD2Ev(%struct.Temp* 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 void @llvm.wasm.throw(i32, i8*)
|
|
declare void @llvm.wasm.rethrow()
|
|
declare i8* @__cxa_begin_catch(i8*)
|
|
declare void @__cxa_end_catch()
|
|
declare void @__clang_call_terminate(i8*)
|
|
|
|
; CHECK-DAG: declare void @llvm.wasm.landingpad.index(token, i32 immarg)
|
|
; CHECK-DAG: declare i8* @llvm.wasm.lsda()
|
|
; CHECK-DAG: declare i32 @_Unwind_CallPersonality(i8*)
|