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456 lines
17 KiB
456 lines
17 KiB
; RUN: opt -inline -S %s | FileCheck %s
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declare void @g()
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;;; Test with a call in a funclet that needs to remain a call
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;;; when inlined because the funclet doesn't unwind to caller.
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;;; CHECK-LABEL: define void @test1(
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define void @test1() personality void ()* @g {
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entry:
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; CHECK-NEXT: entry:
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invoke void @test1_inlinee()
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to label %exit unwind label %cleanup
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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cleanupret from %pad unwind to caller
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exit:
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ret void
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}
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define void @test1_inlinee() alwaysinline personality void ()* @g {
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entry:
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invoke void @g()
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to label %exit unwind label %cleanup.inner
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: unwind label %[[cleanup_inner:.+]]
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cleanup.inner:
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%pad.inner = cleanuppad within none []
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call void @g() [ "funclet"(token %pad.inner) ]
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cleanupret from %pad.inner unwind label %cleanup.outer
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; CHECK: [[cleanup_inner]]:
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; The call here needs to remain a call becuase pad.inner has a cleanupret
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; that stays within the inlinee.
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; CHECK-NEXT: %[[pad_inner:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: call void @g() [ "funclet"(token %[[pad_inner]]) ]
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; CHECK-NEXT: cleanupret from %[[pad_inner]] unwind label %[[cleanup_outer:.+]]
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cleanup.outer:
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%pad.outer = cleanuppad within none []
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call void @g() [ "funclet"(token %pad.outer) ]
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cleanupret from %pad.outer unwind to caller
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; CHECK: [[cleanup_outer]]:
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; The call and cleanupret here need to be redirected to caller cleanup
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; CHECK-NEXT: %[[pad_outer:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[pad_outer]]) ]
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; CHECK-NEXT: unwind label %cleanup
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; CHECK: cleanupret from %[[pad_outer]] unwind label %cleanup{{$}}
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exit:
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ret void
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}
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;;; Test with an "unwind to caller" catchswitch in a parent funclet
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;;; that needs to remain "unwind to caller" because the parent
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;;; doesn't unwind to caller.
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;;; CHECK-LABEL: define void @test2(
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define void @test2() personality void ()* @g {
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entry:
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; CHECK-NEXT: entry:
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invoke void @test2_inlinee()
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to label %exit unwind label %cleanup
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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cleanupret from %pad unwind to caller
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exit:
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ret void
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}
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define void @test2_inlinee() alwaysinline personality void ()* @g {
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entry:
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invoke void @g()
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to label %exit unwind label %cleanup1
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: unwind label %[[cleanup1:.+]]
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cleanup1:
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%outer = cleanuppad within none []
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invoke void @g() [ "funclet"(token %outer) ]
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to label %ret1 unwind label %catchswitch
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; CHECK: [[cleanup1]]:
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; CHECK-NEXT: %[[outer:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[outer]]) ]
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; CHECK-NEXT: unwind label %[[catchswitch:.+]]
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catchswitch:
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%cs = catchswitch within %outer [label %catch] unwind to caller
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; CHECK: [[catchswitch]]:
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; The catchswitch here needs to remain "unwind to caller" since %outer
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; has a cleanupret that remains within the inlinee.
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; CHECK-NEXT: %[[cs:[^ ]+]] = catchswitch within %[[outer]] [label %[[catch:.+]]] unwind to caller
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catch:
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%inner = catchpad within %cs []
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call void @g() [ "funclet"(token %inner) ]
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catchret from %inner to label %ret1
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; CHECK: [[catch]]:
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; The call here needs to remain a call since it too is within %outer
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; CHECK: %[[inner:[^ ]+]] = catchpad within %[[cs]]
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; CHECK-NEXT: call void @g() [ "funclet"(token %[[inner]]) ]
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ret1:
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cleanupret from %outer unwind label %cleanup2
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; CHECK: cleanupret from %[[outer]] unwind label %[[cleanup2:.+]]
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cleanup2:
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%later = cleanuppad within none []
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cleanupret from %later unwind to caller
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; CHECK: [[cleanup2]]:
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; The cleanupret here needs to get redirected to the caller cleanup
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; CHECK-NEXT: %[[later:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: cleanupret from %[[later]] unwind label %cleanup{{$}}
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exit:
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ret void
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}
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;;; Test with a call in a cleanup that has no definitive unwind
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;;; destination, that must be rewritten to an invoke.
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;;; CHECK-LABEL: define void @test3(
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define void @test3() personality void ()* @g {
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entry:
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; CHECK-NEXT: entry:
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invoke void @test3_inlinee()
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to label %exit unwind label %cleanup
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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cleanupret from %pad unwind to caller
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exit:
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ret void
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}
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define void @test3_inlinee() alwaysinline personality void ()* @g {
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entry:
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invoke void @g()
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to label %exit unwind label %cleanup
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: unwind label %[[cleanup:.+]]
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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unreachable
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; CHECK: [[cleanup]]:
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; The call must be rewritten to an invoke targeting the caller cleanup
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; because it may well unwind to there.
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; CHECK-NEXT: %[[pad:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[pad]]) ]
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; CHECK-NEXT: unwind label %cleanup{{$}}
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exit:
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ret void
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}
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;;; Test with a catchswitch in a cleanup that has no definitive
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;;; unwind destination, that must be rewritten to unwind to the
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;;; inlined invoke's unwind dest
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;;; CHECK-LABEL: define void @test4(
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define void @test4() personality void ()* @g {
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entry:
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; CHECK-NEXT: entry:
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invoke void @test4_inlinee()
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to label %exit unwind label %cleanup
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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cleanupret from %pad unwind to caller
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exit:
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ret void
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}
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define void @test4_inlinee() alwaysinline personality void ()* @g {
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entry:
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invoke void @g()
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to label %exit unwind label %cleanup
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: unwind label %[[cleanup:.+]]
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cleanup:
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%clean = cleanuppad within none []
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invoke void @g() [ "funclet"(token %clean) ]
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to label %unreachable unwind label %dispatch
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; CHECK: [[cleanup]]:
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; CHECK-NEXT: %[[clean:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[clean]]) ]
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; CHECK-NEXT: unwind label %[[dispatch:.+]]
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dispatch:
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%cs = catchswitch within %clean [label %catch] unwind to caller
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; CHECK: [[dispatch]]:
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; The catchswitch must be rewritten to unwind to %cleanup in the caller
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; because it may well unwind to there.
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; CHECK-NEXT: %[[cs:[^ ]+]] = catchswitch within %[[clean]] [label %[[catch:.+]]] unwind label %cleanup{{$}}
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catch:
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catchpad within %cs []
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br label %unreachable
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unreachable:
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unreachable
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exit:
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ret void
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}
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;;; Test with multiple levels of nesting, and unwind dests
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;;; that need to be inferred from ancestors, descendants,
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;;; and cousins.
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;;; CHECK-LABEL: define void @test5(
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define void @test5() personality void ()* @g {
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entry:
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; CHECK-NEXT: entry:
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invoke void @test5_inlinee()
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to label %exit unwind label %cleanup
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cleanup:
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%pad = cleanuppad within none []
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call void @g() [ "funclet"(token %pad) ]
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cleanupret from %pad unwind to caller
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exit:
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ret void
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}
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define void @test5_inlinee() alwaysinline personality void ()* @g {
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entry:
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invoke void @g()
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to label %cont unwind label %noinfo.root
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: to label %[[cont:[^ ]+]] unwind label %[[noinfo_root:.+]]
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noinfo.root:
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%noinfo.root.pad = cleanuppad within none []
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call void @g() [ "funclet"(token %noinfo.root.pad) ]
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invoke void @g() [ "funclet"(token %noinfo.root.pad) ]
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to label %noinfo.root.cont unwind label %noinfo.left
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; CHECK: [[noinfo_root]]:
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; Nothing under "noinfo.root" has a definitive unwind destination, so
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; we must assume all of it may actually unwind, and redirect unwinds
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; to the cleanup in the caller.
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; CHECK-NEXT: %[[noinfo_root_pad:[^ ]+]] = cleanuppad within none []
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_root_pad]]) ]
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; CHECK-NEXT: to label %[[next:[^ ]+]] unwind label %cleanup{{$}}
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; CHECK: [[next]]:
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_root_pad]]) ]
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; CHECK-NEXT: to label %[[noinfo_root_cont:[^ ]+]] unwind label %[[noinfo_left:.+]]
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noinfo.left:
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%noinfo.left.pad = cleanuppad within %noinfo.root.pad []
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invoke void @g() [ "funclet"(token %noinfo.left.pad) ]
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to label %unreachable unwind label %noinfo.left.child
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; CHECK: [[noinfo_left]]:
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; CHECK-NEXT: %[[noinfo_left_pad:[^ ]+]] = cleanuppad within %[[noinfo_root_pad]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_left_pad]]) ]
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; CHECK-NEXT: unwind label %[[noinfo_left_child:.+]]
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noinfo.left.child:
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%noinfo.left.child.cs = catchswitch within %noinfo.left.pad [label %noinfo.left.child.catch] unwind to caller
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; CHECK: [[noinfo_left_child]]:
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; CHECK-NEXT: %[[noinfo_left_child_cs:[^ ]+]] = catchswitch within %[[noinfo_left_pad]] [label %[[noinfo_left_child_catch:[^ ]+]]] unwind label %cleanup{{$}}
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noinfo.left.child.catch:
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%noinfo.left.child.pad = catchpad within %noinfo.left.child.cs []
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call void @g() [ "funclet"(token %noinfo.left.child.pad) ]
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br label %unreachable
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; CHECK: [[noinfo_left_child_catch]]:
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; CHECK-NEXT: %[[noinfo_left_child_pad:[^ ]+]] = catchpad within %[[noinfo_left_child_cs]] []
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_left_child_pad]]) ]
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; CHECK-NEXT: unwind label %cleanup{{$}}
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noinfo.root.cont:
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invoke void @g() [ "funclet"(token %noinfo.root.pad) ]
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to label %unreachable unwind label %noinfo.right
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; CHECK: [[noinfo_root_cont]]:
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_root_pad]]) ]
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; CHECK-NEXT: unwind label %[[noinfo_right:.+]]
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noinfo.right:
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%noinfo.right.cs = catchswitch within %noinfo.root.pad [label %noinfo.right.catch] unwind to caller
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; CHECK: [[noinfo_right]]:
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; CHECK-NEXT: %[[noinfo_right_cs:[^ ]+]] = catchswitch within %[[noinfo_root_pad]] [label %[[noinfo_right_catch:[^ ]+]]] unwind label %cleanup{{$}}
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noinfo.right.catch:
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%noinfo.right.pad = catchpad within %noinfo.right.cs []
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invoke void @g() [ "funclet"(token %noinfo.right.pad) ]
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to label %unreachable unwind label %noinfo.right.child
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; CHECK: [[noinfo_right_catch]]:
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; CHECK-NEXT: %[[noinfo_right_pad:[^ ]+]] = catchpad within %[[noinfo_right_cs]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_right_pad]]) ]
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; CHECK-NEXT: unwind label %[[noinfo_right_child:.+]]
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noinfo.right.child:
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%noinfo.right.child.pad = cleanuppad within %noinfo.right.pad []
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call void @g() [ "funclet"(token %noinfo.right.child.pad) ]
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br label %unreachable
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; CHECK: [[noinfo_right_child]]:
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; CHECK-NEXT: %[[noinfo_right_child_pad:[^ ]+]] = cleanuppad within %[[noinfo_right_pad]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[noinfo_right_child_pad]]) ]
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; CHECK-NEXT: unwind label %cleanup{{$}}
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cont:
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invoke void @g()
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to label %exit unwind label %implicit.root
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; CHECK: [[cont]]:
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; CHECK-NEXT: invoke void @g()
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; CHECK-NEXT: unwind label %[[implicit_root:.+]]
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implicit.root:
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%implicit.root.pad = cleanuppad within none []
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call void @g() [ "funclet"(token %implicit.root.pad) ]
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invoke void @g() [ "funclet"(token %implicit.root.pad) ]
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to label %implicit.root.cont unwind label %implicit.left
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; CHECK: [[implicit_root]]:
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; There's an unwind edge to %internal in implicit.right, and we need to propagate that
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; fact down to implicit.right.grandchild, up to implicit.root, and down to
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; implicit.left.child.catch, leaving all calls and "unwind to caller" catchswitches
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; alone to so they don't conflict with the unwind edge in implicit.right
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; CHECK-NEXT: %[[implicit_root_pad:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: call void @g() [ "funclet"(token %[[implicit_root_pad]]) ]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[implicit_root_pad]]) ]
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; CHECK-NEXT: to label %[[implicit_root_cont:[^ ]+]] unwind label %[[implicit_left:.+]]
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implicit.left:
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%implicit.left.pad = cleanuppad within %implicit.root.pad []
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invoke void @g() [ "funclet"(token %implicit.left.pad) ]
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to label %unreachable unwind label %implicit.left.child
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; CHECK: [[implicit_left]]:
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; CHECK-NEXT: %[[implicit_left_pad:[^ ]+]] = cleanuppad within %[[implicit_root_pad:[^ ]+]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[implicit_left_pad]]) ]
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; CHECK-NEXT: unwind label %[[implicit_left_child:.+]]
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implicit.left.child:
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%implicit.left.child.cs = catchswitch within %implicit.left.pad [label %implicit.left.child.catch] unwind to caller
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; CHECK: [[implicit_left_child]]:
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; CHECK-NEXT: %[[implicit_left_child_cs:[^ ]+]] = catchswitch within %[[implicit_left_pad]] [label %[[implicit_left_child_catch:[^ ]+]]] unwind to caller
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implicit.left.child.catch:
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%implicit.left.child.pad = catchpad within %implicit.left.child.cs []
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call void @g() [ "funclet"(token %implicit.left.child.pad) ]
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br label %unreachable
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; CHECK: [[implicit_left_child_catch]]:
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; CHECK-NEXT: %[[implicit_left_child_pad:[^ ]+]] = catchpad within %[[implicit_left_child_cs]]
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; CHECK-NEXT: call void @g() [ "funclet"(token %[[implicit_left_child_pad]]) ]
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implicit.root.cont:
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invoke void @g() [ "funclet"(token %implicit.root.pad) ]
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to label %unreachable unwind label %implicit.right
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; CHECK: [[implicit_root_cont]]:
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[implicit_root_pad]]) ]
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; CHECK-NEXT: unwind label %[[implicit_right:.+]]
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implicit.right:
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%implicit.right.cs = catchswitch within %implicit.root.pad [label %implicit.right.catch] unwind label %internal
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; CHECK: [[implicit_right]]:
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; This is the unwind edge (to %internal) whose existence needs to get propagated around the "implicit" tree
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; CHECK-NEXT: %[[implicit_right_cs:[^ ]+]] = catchswitch within %[[implicit_root_pad]] [label %[[implicit_right_catch:[^ ]+]]] unwind label %[[internal:.+]]
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implicit.right.catch:
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%implicit.right.pad = catchpad within %implicit.right.cs []
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invoke void @g() [ "funclet"(token %implicit.right.pad) ]
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to label %unreachable unwind label %implicit.right.child
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; CHECK: [[implicit_right_catch]]:
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; CHECK-NEXT: %[[implicit_right_pad:[^ ]+]] = catchpad within %[[implicit_right_cs]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[implicit_right_pad]]) ]
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; CHECK-NEXT: unwind label %[[implicit_right_child:.+]]
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implicit.right.child:
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%implicit.right.child.pad = cleanuppad within %implicit.right.pad []
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invoke void @g() [ "funclet"(token %implicit.right.child.pad) ]
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to label %unreachable unwind label %implicit.right.grandchild
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; CHECK: [[implicit_right_child]]:
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; CHECK-NEXT: %[[implicit_right_child_pad:[^ ]+]] = cleanuppad within %[[implicit_right_pad]]
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[implicit_right_child_pad]]) ]
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; CHECK-NEXT: unwind label %[[implicit_right_grandchild:.+]]
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implicit.right.grandchild:
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%implicit.right.grandchild.cs = catchswitch within %implicit.right.child.pad [label %implicit.right.grandchild.catch] unwind to caller
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; CHECK: [[implicit_right_grandchild]]:
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; CHECK-NEXT: %[[implicit_right_grandchild_cs:[^ ]+]] = catchswitch within %[[implicit_right_child_pad]] [label %[[implicit_right_grandchild_catch:[^ ]+]]] unwind to caller
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implicit.right.grandchild.catch:
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%implicit.right.grandhcild.pad = catchpad within %implicit.right.grandchild.cs []
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call void @g() [ "funclet"(token %implicit.right.grandhcild.pad) ]
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br label %unreachable
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; CHECK: [[implicit_right_grandchild_catch]]:
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; CHECK-NEXT: %[[implicit_right_grandhcild_pad:[^ ]+]] = catchpad within %[[implicit_right_grandchild_cs]]
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; CHECK-NEXT: call void @g() [ "funclet"(token %[[implicit_right_grandhcild_pad]]) ]
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internal:
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%internal.pad = cleanuppad within none []
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call void @g() [ "funclet"(token %internal.pad) ]
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cleanupret from %internal.pad unwind to caller
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; CHECK: [[internal]]:
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; internal is a cleanup with a "return to caller" cleanuppad; that needs to get redirected
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; to %cleanup in the caller, and the call needs to get similarly rewritten to an invoke.
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; CHECK-NEXT: %[[internal_pad:[^ ]+]] = cleanuppad within none
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; CHECK-NEXT: invoke void @g() [ "funclet"(token %internal.pad.i) ]
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; CHECK-NEXT: to label %[[next:[^ ]+]] unwind label %cleanup{{$}}
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; CHECK: [[next]]:
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; CHECK-NEXT: cleanupret from %[[internal_pad]] unwind label %cleanup{{$}}
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unreachable:
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unreachable
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exit:
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ret void
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}
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declare void @ProcessCLRException()
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; Make sure the logic doesn't get tripped up when the inlined invoke is
|
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; itself within a funclet in the caller.
|
|
; CHECK-LABEL: define void @test6(
|
|
define void @test6() personality void ()* @ProcessCLRException {
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entry:
|
|
invoke void @g()
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|
to label %exit unwind label %callsite_parent
|
|
callsite_parent:
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|
%callsite_parent.pad = cleanuppad within none []
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|
; CHECK: %callsite_parent.pad = cleanuppad within none
|
|
invoke void @test6_inlinee() [ "funclet"(token %callsite_parent.pad) ]
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|
to label %ret unwind label %cleanup
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|
ret:
|
|
cleanupret from %callsite_parent.pad unwind label %cleanup
|
|
cleanup:
|
|
%pad = cleanuppad within none []
|
|
call void @g() [ "funclet"(token %pad) ]
|
|
cleanupret from %pad unwind to caller
|
|
exit:
|
|
ret void
|
|
}
|
|
|
|
define void @test6_inlinee() alwaysinline personality void ()* @ProcessCLRException {
|
|
entry:
|
|
invoke void @g()
|
|
to label %exit unwind label %inlinee_cleanup
|
|
; CHECK-NEXT: invoke void @g() [ "funclet"(token %callsite_parent.pad) ]
|
|
; CHECK-NEXT: unwind label %[[inlinee_cleanup:.+]]
|
|
|
|
inlinee_cleanup:
|
|
%inlinee.pad = cleanuppad within none []
|
|
call void @g() [ "funclet"(token %inlinee.pad) ]
|
|
unreachable
|
|
; CHECK: [[inlinee_cleanup]]:
|
|
; CHECK-NEXT: %[[inlinee_pad:[^ ]+]] = cleanuppad within %callsite_parent.pad
|
|
; CHECK-NEXT: invoke void @g() [ "funclet"(token %[[inlinee_pad]]) ]
|
|
; CHECK-NEXT: unwind label %cleanup{{$}}
|
|
|
|
exit:
|
|
ret void
|
|
}
|