2021-07-03 03:35:14 +08:00
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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2020-12-18 02:30:37 +08:00
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; RUN: opt < %s -simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
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2019-04-17 12:52:47 +08:00
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declare void @f()
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declare void @llvm.foo(i32) nounwind
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declare void @ProcessCLRException()
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define void @test1() personality void ()* @ProcessCLRException {
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2021-07-03 03:35:14 +08:00
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[EXN_DISPATCH:%.*]]
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; CHECK: exn.dispatch:
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; CHECK-NEXT: [[CS:%.*]] = catchswitch within none [label %pad1] unwind to caller
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; CHECK: pad1:
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; CHECK-NEXT: [[CP1:%.*]] = catchpad within [[CS]] [i32 1]
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; CHECK-NEXT: call void @llvm.foo(i32 1)
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; CHECK-NEXT: catchret from [[CP1]] to label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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2019-04-17 12:52:47 +08:00
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entry:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %exit unwind label %exn.dispatch
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2019-04-17 12:52:47 +08:00
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exn.dispatch:
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%cs = catchswitch within none [label %pad1, label %pad2] unwind to caller
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pad1:
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%cp1 = catchpad within %cs [i32 1]
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call void @llvm.foo(i32 1)
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catchret from %cp1 to label %exit
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pad2:
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%cp2 = catchpad within %cs [i32 2]
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unreachable
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exit:
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ret void
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}
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; Remove unreachble catch2, leave catch1 as-is
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; Remove both catchpads and the catchswitch from exn.dispatch
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define void @test2() personality void ()* @ProcessCLRException {
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2021-07-03 03:35:14 +08:00
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; CHECK-LABEL: @test2(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: call void @f()
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[VIA_CATCHSWITCH:%.*]] unwind label [[CLEANUP_INNER:%.*]]
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; CHECK: cleanup.inner:
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; CHECK-NEXT: [[CP_INNER:%.*]] = cleanuppad within none []
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; CHECK-NEXT: call void @llvm.foo(i32 0)
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; CHECK-NEXT: cleanupret from [[CP_INNER]] unwind to caller
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; CHECK: via.catchswitch:
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[DISPATCH_INNER:%.*]]
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; CHECK: dispatch.inner:
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; CHECK-NEXT: [[CS_INNER:%.*]] = catchswitch within none [label %pad.inner] unwind to caller
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; CHECK: pad.inner:
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; CHECK-NEXT: [[CATCH_INNER:%.*]] = catchpad within [[CS_INNER]] [i32 0]
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; CHECK-NEXT: call void @llvm.foo(i32 1)
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; CHECK-NEXT: catchret from [[CATCH_INNER]] to label [[EXIT]]
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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2019-04-17 12:52:47 +08:00
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entry:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %via.cleanup unwind label %exn.dispatch
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2019-04-17 12:52:47 +08:00
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via.cleanup:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %via.catchswitch unwind label %cleanup.inner
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2019-04-17 12:52:47 +08:00
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cleanup.inner:
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%cp.inner = cleanuppad within none []
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call void @llvm.foo(i32 0)
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cleanupret from %cp.inner unwind label %exn.dispatch
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via.catchswitch:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %exit unwind label %dispatch.inner
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2019-04-17 12:52:47 +08:00
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dispatch.inner:
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%cs.inner = catchswitch within none [label %pad.inner] unwind label %exn.dispatch
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pad.inner:
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%catch.inner = catchpad within %cs.inner [i32 0]
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call void @llvm.foo(i32 1)
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catchret from %catch.inner to label %exit
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exn.dispatch:
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%cs = catchswitch within none [label %pad1, label %pad2] unwind to caller
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pad1:
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catchpad within %cs [i32 1]
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unreachable
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pad2:
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catchpad within %cs [i32 2]
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unreachable
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exit:
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ret void
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}
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; Same as @test2, but exn.dispatch catchswitch has an unwind dest that
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; preds need to be reidrected to
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define void @test3() personality void ()* @ProcessCLRException {
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2021-07-03 03:35:14 +08:00
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; CHECK-LABEL: @test3(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[VIA_CLEANUP:%.*]] unwind label [[CLEANUP:%.*]]
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; CHECK: via.cleanup:
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[VIA_CATCHSWITCH:%.*]] unwind label [[CLEANUP_INNER:%.*]]
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; CHECK: cleanup.inner:
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; CHECK-NEXT: [[CP_INNER:%.*]] = cleanuppad within none []
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; CHECK-NEXT: call void @llvm.foo(i32 0)
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; CHECK-NEXT: cleanupret from [[CP_INNER]] unwind label [[CLEANUP]]
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; CHECK: via.catchswitch:
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; CHECK-NEXT: invoke void @f()
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; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[DISPATCH_INNER:%.*]]
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; CHECK: dispatch.inner:
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; CHECK-NEXT: [[CS_INNER:%.*]] = catchswitch within none [label %pad.inner] unwind label [[CLEANUP]]
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; CHECK: pad.inner:
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; CHECK-NEXT: [[CATCH_INNER:%.*]] = catchpad within [[CS_INNER]] [i32 0]
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; CHECK-NEXT: call void @llvm.foo(i32 1)
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; CHECK-NEXT: catchret from [[CATCH_INNER]] to label [[EXIT]]
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; CHECK: cleanup:
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; CHECK-NEXT: [[CP:%.*]] = cleanuppad within none []
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; CHECK-NEXT: call void @llvm.foo(i32 0)
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; CHECK-NEXT: cleanupret from [[CP]] unwind to caller
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; CHECK: exit:
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; CHECK-NEXT: ret void
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;
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2019-04-17 12:52:47 +08:00
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entry:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %via.cleanup unwind label %exn.dispatch
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2019-04-17 12:52:47 +08:00
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via.cleanup:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %via.catchswitch unwind label %cleanup.inner
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2019-04-17 12:52:47 +08:00
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cleanup.inner:
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%cp.inner = cleanuppad within none []
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call void @llvm.foo(i32 0)
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cleanupret from %cp.inner unwind label %exn.dispatch
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via.catchswitch:
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invoke void @f()
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2021-07-03 03:35:14 +08:00
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to label %exit unwind label %dispatch.inner
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2019-04-17 12:52:47 +08:00
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dispatch.inner:
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%cs.inner = catchswitch within none [label %pad.inner] unwind label %exn.dispatch
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pad.inner:
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%catch.inner = catchpad within %cs.inner [i32 0]
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call void @llvm.foo(i32 1)
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catchret from %catch.inner to label %exit
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exn.dispatch:
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%cs = catchswitch within none [label %pad1, label %pad2] unwind label %cleanup
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pad1:
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catchpad within %cs [i32 1]
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unreachable
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pad2:
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catchpad within %cs [i32 2]
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unreachable
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cleanup:
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%cp = cleanuppad within none []
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call void @llvm.foo(i32 0)
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cleanupret from %cp unwind to caller
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exit:
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ret void
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}
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