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1; Check that we can handle edge splits leading into a landingpad2; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s3 4target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"5target triple = "x86_64-unknown-linux-gnu"6 7; CHECK-LABEL: define internal fastcc void @g.resume(8define void @g(i1 %cond, i32 %x, i32 %y) presplitcoroutine personality i32 0 {9entry:10 %id = call token @llvm.coro.id(i32 16, ptr null, ptr null, ptr null)11 %size = tail call i64 @llvm.coro.size.i64()12 %alloc = call ptr @malloc(i64 %size)13 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)14 %sp = call i8 @llvm.coro.suspend(token none, i1 false)15 switch i8 %sp, label %coro.ret [16 i8 0, label %resume17 i8 1, label %cleanup18 ]19 20resume:21 br i1 %cond, label %invoke1, label %invoke222 23invoke1:24 invoke void @may_throw1()25 to label %unreach unwind label %pad.with.phi26invoke2:27 invoke void @may_throw2()28 to label %unreach unwind label %pad.with.phi29 30; Verify that we created cleanuppads on every edge and inserted a reload of the spilled value31 32; CHECK: pad.with.phi.from.invoke2:33; CHECK: %0 = cleanuppad within none []34; CHECK: %y.reload.addr = getelementptr inbounds %g.Frame, ptr %hdl, i32 0, i32 335; CHECK: %y.reload = load i32, ptr %y.reload.addr36; CHECK: cleanupret from %0 unwind label %pad.with.phi37 38; CHECK: pad.with.phi.from.invoke1:39; CHECK: %1 = cleanuppad within none []40; CHECK: %x.reload.addr = getelementptr inbounds %g.Frame, ptr %hdl, i32 0, i32 241; CHECK: %x.reload = load i32, ptr %x.reload.addr42; CHECK: cleanupret from %1 unwind label %pad.with.phi43 44; CHECK: pad.with.phi:45; CHECK: %val = phi i32 [ %x.reload, %pad.with.phi.from.invoke1 ], [ %y.reload, %pad.with.phi.from.invoke2 ]46; CHECK: %tok = cleanuppad within none []47; CHECK: call void @use_val(i32 %val)48; CHECK: cleanupret from %tok unwind to caller49 50pad.with.phi:51 %val = phi i32 [ %x, %invoke1 ], [ %y, %invoke2 ]52 %tok = cleanuppad within none []53 call void @use_val(i32 %val)54 cleanupret from %tok unwind to caller55 56cleanup: ; preds = %invoke.cont15, %if.else, %if.then, %ehcleanup21, %init.suspend57 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)58 call void @free(ptr %mem)59 br label %coro.ret60 61coro.ret:62 call void @llvm.coro.end(ptr null, i1 false, token none)63 ret void64 65unreach:66 unreachable67}68 69; Function Attrs: argmemonly nounwind readonly70declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr)71declare noalias ptr @malloc(i64)72declare i64 @llvm.coro.size.i64()73declare ptr @llvm.coro.begin(token, ptr writeonly)74 75; Function Attrs: nounwind76declare token @llvm.coro.save(ptr)77declare i8 @llvm.coro.suspend(token, i1)78 79; Function Attrs: argmemonly nounwind80declare void @may_throw1()81declare void @may_throw2()82 83declare ptr @__cxa_begin_catch(ptr)84 85declare void @use_val(i32)86declare void @__cxa_end_catch()87 88; Function Attrs: nounwind89declare void @llvm.coro.end(ptr, i1, token)90declare void @free(ptr)91declare ptr @llvm.coro.free(token, ptr nocapture readonly)92