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; RUN: opt -S -simplifycfg < %s | FileCheck %s
declare void @Personality()
declare void @f()
; CHECK-LABEL: define void @test1()
define void @test1() personality i8* bitcast (void ()* @Personality to i8*) {
entry:
; CHECK: call void @f()
invoke void @f()
to label %exit unwind label %unreachable.unwind
exit:
ret void
unreachable.unwind:
cleanuppad []
unreachable
}
; CHECK-LABEL: define void @test2()
define void @test2() personality i8* bitcast (void ()* @Personality to i8*) {
entry:
invoke void @f()
to label %exit unwind label %catch.pad
catch.pad:
; CHECK: catchpad []
; CHECK-NEXT: to label %catch.body unwind label %catch.end
%catch = catchpad []
to label %catch.body unwind label %catch.end
catch.body:
; CHECK: catch.body:
; CHECK-NEXT: call void @f()
; CHECK-NEXT: unreachable
call void @f()
catchret %catch to label %unreachable
catch.end:
; CHECK: catch.end:
; CHECK-NEXT: catchendpad unwind to caller
catchendpad unwind label %unreachable.unwind
exit:
ret void
unreachable.unwind:
cleanuppad []
unreachable
unreachable:
unreachable
}
; CHECK-LABEL: define void @test3()
define void @test3() personality i8* bitcast (void ()* @Personality to i8*) {
entry:
invoke void @f()
to label %exit unwind label %cleanup.pad
cleanup.pad:
; CHECK: %cleanup = cleanuppad []
; CHECK-NEXT: call void @f()
; CHECK-NEXT: unreachable
%cleanup = cleanuppad []
invoke void @f()
to label %cleanup.ret unwind label %cleanup.end
cleanup.ret:
; This cleanupret should be rewritten to unreachable,
; and merged into the pred block.
cleanupret %cleanup unwind label %unreachable.unwind
cleanup.end:
; This cleanupendpad should be rewritten to unreachable,
; causing the invoke to be rewritten to a call.
cleanupendpad %cleanup unwind label %unreachable.unwind
exit:
ret void
unreachable.unwind:
cleanuppad []
unreachable
}
; CHECK-LABEL: define void @test4()
define void @test4() personality i8* bitcast (void ()* @Personality to i8*) {
entry:
invoke void @f()
to label %exit unwind label %terminate.pad
terminate.pad:
; CHECK: terminatepad [] unwind to caller
terminatepad [] unwind label %unreachable.unwind
exit:
ret void
unreachable.unwind:
cleanuppad []
unreachable
}
; CHECK-LABEL: define void @test5()
define void @test5() personality i8* bitcast (void ()* @Personality to i8*) {
entry:
invoke void @f()
to label %exit unwind label %catch.pad
catch.pad:
%catch = catchpad []
to label %catch.body unwind label %catch.end
catch.body:
catchret %catch to label %exit
catch.end:
catchendpad unwind to caller
exit:
unreachable
}
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