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|
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals
; RUN: opt < %s -passes=simplifycfg -simplifycfg-require-and-preserve-domtree=1 -S | FileCheck %s
declare void @f()
declare void @llvm.foo(i32) nounwind
declare void @ProcessCLRException()
define void @test1() personality ptr @ProcessCLRException {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[EXN_DISPATCH:%.*]]
; CHECK: exn.dispatch:
; CHECK-NEXT: [[CS:%.*]] = catchswitch within none [label %pad1] unwind to caller
; CHECK: pad1:
; CHECK-NEXT: [[CP1:%.*]] = catchpad within [[CS]] [i32 1]
; CHECK-NEXT: call void @llvm.foo(i32 1)
; CHECK-NEXT: catchret from [[CP1]] to label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
invoke void @f()
to label %exit unwind label %exn.dispatch
exn.dispatch:
%cs = catchswitch within none [label %pad1, label %pad2] unwind to caller
pad1:
%cp1 = catchpad within %cs [i32 1]
call void @llvm.foo(i32 1)
catchret from %cp1 to label %exit
pad2:
%cp2 = catchpad within %cs [i32 2]
unreachable
exit:
ret void
}
; Remove unreachble catch2, leave catch1 as-is
; Remove both catchpads and the catchswitch from exn.dispatch
define void @test2() personality ptr @ProcessCLRException {
; CHECK-LABEL: @test2(
; CHECK-NEXT: entry:
; CHECK-NEXT: call void @f()
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[VIA_CATCHSWITCH:%.*]] unwind label [[CLEANUP_INNER:%.*]]
; CHECK: cleanup.inner:
; CHECK-NEXT: [[CP_INNER:%.*]] = cleanuppad within none []
; CHECK-NEXT: call void @llvm.foo(i32 0)
; CHECK-NEXT: cleanupret from [[CP_INNER]] unwind to caller
; CHECK: via.catchswitch:
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[DISPATCH_INNER:%.*]]
; CHECK: dispatch.inner:
; CHECK-NEXT: [[CS_INNER:%.*]] = catchswitch within none [label %pad.inner] unwind to caller
; CHECK: pad.inner:
; CHECK-NEXT: [[CATCH_INNER:%.*]] = catchpad within [[CS_INNER]] [i32 0]
; CHECK-NEXT: call void @llvm.foo(i32 1)
; CHECK-NEXT: catchret from [[CATCH_INNER]] to label [[EXIT]]
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
invoke void @f()
to label %via.cleanup unwind label %exn.dispatch
via.cleanup:
invoke void @f()
to label %via.catchswitch unwind label %cleanup.inner
cleanup.inner:
%cp.inner = cleanuppad within none []
call void @llvm.foo(i32 0)
cleanupret from %cp.inner unwind label %exn.dispatch
via.catchswitch:
invoke void @f()
to label %exit unwind label %dispatch.inner
dispatch.inner:
%cs.inner = catchswitch within none [label %pad.inner] unwind label %exn.dispatch
pad.inner:
%catch.inner = catchpad within %cs.inner [i32 0]
call void @llvm.foo(i32 1)
catchret from %catch.inner to label %exit
exn.dispatch:
%cs = catchswitch within none [label %pad1, label %pad2] unwind to caller
pad1:
catchpad within %cs [i32 1]
unreachable
pad2:
catchpad within %cs [i32 2]
unreachable
exit:
ret void
}
; Same as @test2, but exn.dispatch catchswitch has an unwind dest that
; preds need to be reidrected to
define void @test3() personality ptr @ProcessCLRException {
; CHECK-LABEL: @test3(
; CHECK-NEXT: entry:
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[VIA_CLEANUP:%.*]] unwind label [[CLEANUP:%.*]]
; CHECK: via.cleanup:
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[VIA_CATCHSWITCH:%.*]] unwind label [[CLEANUP_INNER:%.*]]
; CHECK: cleanup.inner:
; CHECK-NEXT: [[CP_INNER:%.*]] = cleanuppad within none []
; CHECK-NEXT: call void @llvm.foo(i32 0)
; CHECK-NEXT: cleanupret from [[CP_INNER]] unwind label [[CLEANUP]]
; CHECK: via.catchswitch:
; CHECK-NEXT: invoke void @f()
; CHECK-NEXT: to label [[EXIT:%.*]] unwind label [[DISPATCH_INNER:%.*]]
; CHECK: dispatch.inner:
; CHECK-NEXT: [[CS_INNER:%.*]] = catchswitch within none [label %pad.inner] unwind label [[CLEANUP]]
; CHECK: pad.inner:
; CHECK-NEXT: [[CATCH_INNER:%.*]] = catchpad within [[CS_INNER]] [i32 0]
; CHECK-NEXT: call void @llvm.foo(i32 1)
; CHECK-NEXT: catchret from [[CATCH_INNER]] to label [[EXIT]]
; CHECK: cleanup:
; CHECK-NEXT: [[CP:%.*]] = cleanuppad within none []
; CHECK-NEXT: call void @llvm.foo(i32 0)
; CHECK-NEXT: cleanupret from [[CP]] unwind to caller
; CHECK: exit:
; CHECK-NEXT: ret void
;
entry:
invoke void @f()
to label %via.cleanup unwind label %exn.dispatch
via.cleanup:
invoke void @f()
to label %via.catchswitch unwind label %cleanup.inner
cleanup.inner:
%cp.inner = cleanuppad within none []
call void @llvm.foo(i32 0)
cleanupret from %cp.inner unwind label %exn.dispatch
via.catchswitch:
invoke void @f()
to label %exit unwind label %dispatch.inner
dispatch.inner:
%cs.inner = catchswitch within none [label %pad.inner] unwind label %exn.dispatch
pad.inner:
%catch.inner = catchpad within %cs.inner [i32 0]
call void @llvm.foo(i32 1)
catchret from %catch.inner to label %exit
exn.dispatch:
%cs = catchswitch within none [label %pad1, label %pad2] unwind label %cleanup
pad1:
catchpad within %cs [i32 1]
unreachable
pad2:
catchpad within %cs [i32 2]
unreachable
cleanup:
%cp = cleanuppad within none []
call void @llvm.foo(i32 0)
cleanupret from %cp unwind to caller
exit:
ret void
}
;.
; CHECK: attributes #[[ATTR0:[0-9]+]] = { nounwind }
;.
|
