forked from OSchip/llvm-project
90 lines
3.2 KiB
LLVM
90 lines
3.2 KiB
LLVM
; RUN: llc < %s -asm-verbose=false -disable-wasm-fallthrough-return-opt -exception-model=wasm | 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.Cleanup = type { i8 }
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@_ZTIi = external constant i8*
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declare void @llvm.wasm.throw(i32, i8*)
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; CHECK-LABEL: test_throw:
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; CHECK-NEXT: i32.const $push0=, 0
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; CHECK-NEXT: throw 0, $pop0
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define void @test_throw() {
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call void @llvm.wasm.throw(i32 0, i8* null)
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ret void
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}
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; CHECK-LABEL: test_catch:
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; CHECK: call foo@FUNCTION
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; CHECK: i32.catch $push{{.+}}=, 0
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; CHECK-DAG: i32.store __wasm_lpad_context
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; CHECK-DAG: i32.store __wasm_lpad_context+4
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; CHECK: i32.call $push{{.+}}=, _Unwind_CallPersonality@FUNCTION
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; CHECK: i32.call $push{{.+}}=, __cxa_begin_catch@FUNCTION
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; CHECK: call __cxa_end_catch@FUNCTION
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; CHECK: call __cxa_rethrow@FUNCTION
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define void @test_catch() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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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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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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rethrow: ; preds = %catch.start
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call void @__cxa_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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; CHECK-LABEL: test_cleanup:
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; CHECK: call foo@FUNCTION
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; CHECK: return
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; CHECK: i32.call $push20=, _ZN7CleanupD1Ev@FUNCTION
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; CHECK: rethrow 0
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define void @test_cleanup() personality i8* bitcast (i32 (...)* @__gxx_wasm_personality_v0 to i8*) {
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entry:
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%c = alloca %struct.Cleanup, align 1
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invoke void @foo()
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to label %invoke.cont unwind label %ehcleanup
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invoke.cont: ; preds = %entry
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%call = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c)
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ret void
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ehcleanup: ; preds = %entry
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%0 = cleanuppad within none []
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%call1 = call %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* %c) [ "funclet"(token %0) ]
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cleanupret from %0 unwind to caller
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}
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declare void @foo()
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declare void @func(i32)
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declare i32 @__gxx_wasm_personality_v0(...)
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declare i8* @llvm.wasm.get.exception(token)
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declare i32 @llvm.wasm.get.ehselector(token)
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declare i32 @llvm.eh.typeid.for(i8*)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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declare void @__cxa_rethrow()
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declare void @__clang_call_terminate(i8*)
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declare %struct.Cleanup* @_ZN7CleanupD1Ev(%struct.Cleanup* returned)
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