71 lines
2.8 KiB
LLVM
71 lines
2.8 KiB
LLVM
; RUN: not --crash opt < %s -wasm-lower-em-ehsjlj -wasm-enable-eh -wasm-enable-sjlj -S 2>&1 | 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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%struct.__jmp_buf_tag = type { [6 x i32], i32, [32 x i32] }
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@_ZTIi = external constant i8*
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define void @setjmp_within_catch() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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entry:
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%buf = alloca [1 x %struct.__jmp_buf_tag], align 16
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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*)) #0
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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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catch: ; preds = %catch.start
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%5 = call i8* @__cxa_begin_catch(i8* %2) #0 [ "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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%arraydecay = getelementptr inbounds [1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* %buf, i32 0, i32 0
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; CHECK: LLVM ERROR: In function setjmp_within_catch: setjmp within a catch clause is not supported in Wasm EH
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; CHECK-NEXT: %call = invoke i32 @setjmp
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%call = invoke i32 @setjmp(%struct.__jmp_buf_tag* noundef %arraydecay) #2 [ "funclet"(token %1) ]
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to label %invoke.cont1 unwind label %ehcleanup
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invoke.cont1: ; preds = %catch
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call void @__cxa_end_catch() #0 [ "funclet"(token %1) ]
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catchret from %1 to label %try.cont
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rethrow: ; preds = %catch.start
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call void @llvm.wasm.rethrow() #1 [ "funclet"(token %1) ]
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unreachable
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try.cont: ; preds = %entry, %invoke.cont1
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ret void
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ehcleanup: ; preds = %catch
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%8 = cleanuppad within %1 []
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call void @__cxa_end_catch() #0 [ "funclet"(token %8) ]
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cleanupret from %8 unwind to caller
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}
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declare void @foo()
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declare i32 @__gxx_wasm_personality_v0(...)
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; Function Attrs: nounwind
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declare i8* @llvm.wasm.get.exception(token) #0
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; Function Attrs: nounwind
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declare i32 @llvm.wasm.get.ehselector(token) #0
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; Function Attrs: nounwind
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declare i32 @llvm.eh.typeid.for(i8*) #0
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; Function Attrs: noreturn
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declare void @llvm.wasm.rethrow() #1
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declare i8* @__cxa_begin_catch(i8*)
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; Function Attrs: returns_twice
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declare i32 @setjmp(%struct.__jmp_buf_tag* noundef) #2
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declare void @__cxa_end_catch()
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attributes #0 = { nounwind }
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attributes #1 = { noreturn }
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attributes #2 = { returns_twice }
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