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; PruneEH is less powerful than simplify-cfg in terms of cfg simplification,
; so it leaves some of the unreachable stuff hanging around.
; Checking it with CHECK-OLD.
;
; RUN: opt -prune-eh -S < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-OLD
; RUN: opt -passes='function-attrs,function(simplify-cfg)' -S < %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NEW
target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32"
target triple = "i386-pc-windows-msvc"
declare void @neverthrows() nounwind
define void @test1() personality i32 (...)* @__CxxFrameHandler3 {
invoke void @neverthrows()
to label %try.cont unwind label %cleanuppad
try.cont:
ret void
cleanuppad:
%cp = cleanuppad within none []
br label %cleanupret
cleanupret:
cleanupret from %cp unwind to caller
}
; CHECK-LABEL: define void @test1(
; CHECK: call void @neverthrows()
; CHECK-NEW-NEXT: ret void
; CHECK-NEW-NEXT: }
; CHECK-OLD: ret void
; CHECK-OLD: %[[cp:.*]] = cleanuppad within none []
; CHECK-OLD-NEXT: unreachable
; CHECK-OLD: cleanupret from %[[cp]] unwind to caller
define void @test2() personality i32 (...)* @__CxxFrameHandler3 {
invoke void @neverthrows()
to label %try.cont unwind label %catchswitch
try.cont:
ret void
catchswitch:
%cs = catchswitch within none [label %catchpad] unwind to caller
catchpad:
%cp = catchpad within %cs []
unreachable
ret:
ret void
}
; CHECK-LABEL: define void @test2(
; CHECK: call void @neverthrows()
; CHECK-NEW-NEXT: ret void
; CHECK-NEW-NEXT: }
; CHECK-OLD: ret void
; CHECK-OLD: %[[cs:.*]] = catchswitch within none [label
; CHECK-OLD: catchpad within %[[cs]] []
; CHECK-OLD-NEXT: unreachable
; CHECK-OLD:ret void
declare i32 @__CxxFrameHandler3(...)
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