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31357e0018
Sort the enums in preparation for moving the attributes to a table-gen file. rdar://problem/19836465 llvm-svn: 252692
349 lines
11 KiB
LLVM
349 lines
11 KiB
LLVM
; RUN: opt < %s -inline -S | FileCheck %s
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; Test that the inliner correctly handles inlining into invoke sites
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; by appending selectors and forwarding _Unwind_Resume directly to the
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; enclosing landing pad.
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;; Test 0 - basic functionality.
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%struct.A = type { i8 }
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@_ZTIi = external constant i8*
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declare void @_ZN1AC1Ev(%struct.A*)
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declare void @_ZN1AD1Ev(%struct.A*)
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declare void @use(i32) nounwind
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declare void @opaque()
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declare i32 @llvm.eh.typeid.for(i8*) nounwind
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declare i32 @__gxx_personality_v0(...)
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declare i8* @__cxa_begin_catch(i8*)
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declare void @__cxa_end_catch()
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declare void @_ZSt9terminatev()
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define internal void @test0_in() alwaysinline uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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%a = alloca %struct.A, align 1
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%b = alloca %struct.A, align 1
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call void @_ZN1AC1Ev(%struct.A* %a)
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invoke void @_ZN1AC1Ev(%struct.A* %b)
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to label %invoke.cont unwind label %lpad
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invoke.cont:
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invoke void @_ZN1AD1Ev(%struct.A* %b)
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to label %invoke.cont1 unwind label %lpad
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invoke.cont1:
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call void @_ZN1AD1Ev(%struct.A* %a)
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ret void
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lpad:
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%exn = landingpad {i8*, i32}
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cleanup
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invoke void @_ZN1AD1Ev(%struct.A* %a)
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to label %invoke.cont2 unwind label %terminate.lpad
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invoke.cont2:
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resume { i8*, i32 } %exn
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terminate.lpad:
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%exn1 = landingpad {i8*, i32}
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catch i8* null
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call void @_ZSt9terminatev() noreturn nounwind
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unreachable
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}
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define void @test0_out() uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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invoke void @test0_in()
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to label %ret unwind label %lpad
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ret:
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ret void
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lpad: ; preds = %entry
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%exn = landingpad {i8*, i32}
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%eh.exc = extractvalue { i8*, i32 } %exn, 0
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%eh.selector = extractvalue { i8*, i32 } %exn, 1
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%0 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
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%1 = icmp eq i32 %eh.selector, %0
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br i1 %1, label %catch, label %eh.resume
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catch:
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%ignored = call i8* @__cxa_begin_catch(i8* %eh.exc) nounwind
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call void @__cxa_end_catch() nounwind
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br label %ret
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eh.resume:
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resume { i8*, i32 } %exn
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}
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; CHECK: define void @test0_out()
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; CHECK: [[A:%.*]] = alloca %struct.A,
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; CHECK: [[B:%.*]] = alloca %struct.A,
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A]])
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B]])
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B]])
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A]])
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: invoke void @_ZN1AD1Ev(%struct.A* [[A]])
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; CHECK-NEXT: to label %[[LBL:[^\s]+]] unwind
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; CHECK: [[LBL]]:
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; CHECK-NEXT: br label %[[LPAD:[^\s]+]]
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; CHECK: ret void
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: br label %[[LPAD]]
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; CHECK: [[LPAD]]:
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; CHECK-NEXT: phi { i8*, i32 } [
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; CHECK-NEXT: extractvalue { i8*, i32 }
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; CHECK-NEXT: extractvalue { i8*, i32 }
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; CHECK-NEXT: call i32 @llvm.eh.typeid.for(
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;; Test 1 - Correctly handle phis in outer landing pads.
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define void @test1_out() uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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invoke void @test0_in()
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to label %cont unwind label %lpad
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cont:
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invoke void @test0_in()
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to label %ret unwind label %lpad
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ret:
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ret void
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lpad:
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%x = phi i32 [ 0, %entry ], [ 1, %cont ]
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%y = phi i32 [ 1, %entry ], [ 4, %cont ]
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%exn = landingpad {i8*, i32}
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catch i8* bitcast (i8** @_ZTIi to i8*)
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%eh.exc = extractvalue { i8*, i32 } %exn, 0
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%eh.selector = extractvalue { i8*, i32 } %exn, 1
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%0 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind
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%1 = icmp eq i32 %eh.selector, %0
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br i1 %1, label %catch, label %eh.resume
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catch:
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%ignored = call i8* @__cxa_begin_catch(i8* %eh.exc) nounwind
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call void @use(i32 %x)
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call void @use(i32 %y)
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call void @__cxa_end_catch() nounwind
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br label %ret
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eh.resume:
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resume { i8*, i32 } %exn
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}
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; CHECK: define void @test1_out()
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; CHECK: [[A2:%.*]] = alloca %struct.A,
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; CHECK: [[B2:%.*]] = alloca %struct.A,
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; CHECK: [[A1:%.*]] = alloca %struct.A,
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; CHECK: [[B1:%.*]] = alloca %struct.A,
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A1]])
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; CHECK-NEXT: unwind label %[[LPAD:[^\s]+]]
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B1]])
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; CHECK-NEXT: unwind label %[[LPAD1:[^\s]+]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B1]])
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; CHECK-NEXT: unwind label %[[LPAD1]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A1]])
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; CHECK-NEXT: unwind label %[[LPAD]]
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; Inner landing pad from first inlining.
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; CHECK: [[LPAD1]]:
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; CHECK-NEXT: [[LPADVAL1:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: invoke void @_ZN1AD1Ev(%struct.A* [[A1]])
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; CHECK-NEXT: to label %[[RESUME1:[^\s]+]] unwind
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; CHECK: [[RESUME1]]:
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; CHECK-NEXT: br label %[[LPAD_JOIN1:[^\s]+]]
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A2]])
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; CHECK-NEXT: unwind label %[[LPAD]]
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B2]])
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; CHECK-NEXT: unwind label %[[LPAD2:[^\s]+]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B2]])
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; CHECK-NEXT: unwind label %[[LPAD2]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A2]])
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; CHECK-NEXT: unwind label %[[LPAD]]
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; Inner landing pad from second inlining.
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; CHECK: [[LPAD2]]:
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; CHECK-NEXT: [[LPADVAL2:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: invoke void @_ZN1AD1Ev(%struct.A* [[A2]])
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; CHECK-NEXT: to label %[[RESUME2:[^\s]+]] unwind
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; CHECK: [[RESUME2]]:
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; CHECK-NEXT: br label %[[LPAD_JOIN2:[^\s]+]]
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; CHECK: ret void
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; CHECK: [[LPAD]]:
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; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, %entry ], [ 0, {{%.*}} ], [ 1, %cont ], [ 1, {{%.*}} ]
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; CHECK-NEXT: [[Y:%.*]] = phi i32 [ 1, %entry ], [ 1, {{%.*}} ], [ 4, %cont ], [ 4, {{%.*}} ]
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; CHECK-NEXT: [[LPADVAL:%.*]] = landingpad { i8*, i32 }
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: br label %[[LPAD_JOIN2]]
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; CHECK: [[LPAD_JOIN2]]:
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; CHECK-NEXT: [[XJ2:%.*]] = phi i32 [ [[X]], %[[LPAD]] ], [ 1, %[[RESUME2]] ]
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; CHECK-NEXT: [[YJ2:%.*]] = phi i32 [ [[Y]], %[[LPAD]] ], [ 4, %[[RESUME2]] ]
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; CHECK-NEXT: [[EXNJ2:%.*]] = phi { i8*, i32 } [ [[LPADVAL]], %[[LPAD]] ], [ [[LPADVAL2]], %[[RESUME2]] ]
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; CHECK-NEXT: br label %[[LPAD_JOIN1]]
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; CHECK: [[LPAD_JOIN1]]:
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; CHECK-NEXT: [[XJ1:%.*]] = phi i32 [ [[XJ2]], %[[LPAD_JOIN2]] ], [ 0, %[[RESUME1]] ]
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; CHECK-NEXT: [[YJ1:%.*]] = phi i32 [ [[YJ2]], %[[LPAD_JOIN2]] ], [ 1, %[[RESUME1]] ]
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; CHECK-NEXT: [[EXNJ1:%.*]] = phi { i8*, i32 } [ [[EXNJ2]], %[[LPAD_JOIN2]] ], [ [[LPADVAL1]], %[[RESUME1]] ]
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; CHECK-NEXT: extractvalue { i8*, i32 } [[EXNJ1]], 0
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; CHECK-NEXT: [[SELJ1:%.*]] = extractvalue { i8*, i32 } [[EXNJ1]], 1
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; CHECK-NEXT: [[T:%.*]] = call i32 @llvm.eh.typeid.for(
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; CHECK-NEXT: icmp eq i32 [[SELJ1]], [[T]]
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; CHECK: call void @use(i32 [[XJ1]])
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; CHECK: call void @use(i32 [[YJ1]])
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; CHECK: resume { i8*, i32 }
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;; Test 2 - Don't make invalid IR for inlines into landing pads without eh.exception calls
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define void @test2_out() uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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invoke void @test0_in()
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to label %ret unwind label %lpad
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ret:
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ret void
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lpad:
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%exn = landingpad {i8*, i32}
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cleanup
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call void @_ZSt9terminatev()
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unreachable
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}
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; CHECK: define void @test2_out()
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; CHECK: [[A:%.*]] = alloca %struct.A,
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; CHECK: [[B:%.*]] = alloca %struct.A,
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A]])
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; CHECK-NEXT: unwind label %[[LPAD:[^\s]+]]
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; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B]])
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; CHECK-NEXT: unwind label %[[LPAD2:[^\s]+]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B]])
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; CHECK-NEXT: unwind label %[[LPAD2]]
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; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A]])
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; CHECK-NEXT: unwind label %[[LPAD]]
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;; Test 3 - Deal correctly with split unwind edges.
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define void @test3_out() uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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invoke void @test0_in()
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to label %ret unwind label %lpad
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ret:
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ret void
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lpad:
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%exn = landingpad {i8*, i32}
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catch i8* bitcast (i8** @_ZTIi to i8*)
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br label %lpad.cont
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lpad.cont:
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call void @_ZSt9terminatev()
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unreachable
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}
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; CHECK: define void @test3_out()
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: invoke void @_ZN1AD1Ev(
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; CHECK-NEXT: to label %[[L:[^\s]+]] unwind
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; CHECK: [[L]]:
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; CHECK-NEXT: br label %[[JOIN:[^\s]+]]
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; CHECK: [[JOIN]]:
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; CHECK-NEXT: phi { i8*, i32 }
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; CHECK-NEXT: br label %lpad.cont
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; CHECK: lpad.cont:
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; CHECK-NEXT: call void @_ZSt9terminatev()
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;; Test 4 - Split unwind edges with a dominance problem
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define void @test4_out() uwtable ssp personality i32 (...)* @__gxx_personality_v0 {
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entry:
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invoke void @test0_in()
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to label %cont unwind label %lpad.crit
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cont:
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invoke void @opaque()
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to label %ret unwind label %lpad
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ret:
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ret void
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lpad.crit:
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%exn = landingpad {i8*, i32}
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catch i8* bitcast (i8** @_ZTIi to i8*)
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call void @opaque() nounwind
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br label %terminate
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lpad:
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%exn2 = landingpad {i8*, i32}
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catch i8* bitcast (i8** @_ZTIi to i8*)
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br label %terminate
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terminate:
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%phi = phi i32 [ 0, %lpad.crit ], [ 1, %lpad ]
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call void @use(i32 %phi)
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call void @_ZSt9terminatev()
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unreachable
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}
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; CHECK: define void @test4_out()
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; CHECK: landingpad { i8*, i32 }
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; CHECK-NEXT: cleanup
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: invoke void @_ZN1AD1Ev(
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; CHECK-NEXT: to label %[[L:[^\s]+]] unwind
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; CHECK: [[L]]:
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; CHECK-NEXT: br label %[[JOIN:[^\s]+]]
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; CHECK: invoke void @opaque()
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; CHECK-NEXT: unwind label %lpad
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; CHECK: lpad.crit:
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; CHECK-NEXT: landingpad { i8*, i32 }
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: br label %[[JOIN]]
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; CHECK: [[JOIN]]:
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; CHECK-NEXT: phi { i8*, i32 }
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; CHECK-NEXT: call void @opaque() [[NUW:#[0-9]+]]
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; CHECK-NEXT: br label %[[FIX:[^\s]+]]
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; CHECK: lpad:
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; CHECK-NEXT: landingpad { i8*, i32 }
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; CHECK-NEXT: catch i8* bitcast (i8** @_ZTIi to i8*)
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; CHECK-NEXT: br label %[[FIX]]
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; CHECK: [[FIX]]:
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; CHECK-NEXT: [[T1:%.*]] = phi i32 [ 0, %[[JOIN]] ], [ 1, %lpad ]
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; CHECK-NEXT: call void @use(i32 [[T1]])
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; CHECK-NEXT: call void @_ZSt9terminatev()
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; CHECK: attributes [[NUW]] = { nounwind }
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; CHECK: attributes #1 = { nounwind readnone }
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; CHECK: attributes #2 = { ssp uwtable }
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; CHECK: attributes #3 = { argmemonly nounwind }
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; CHECK: attributes #4 = { noreturn nounwind }
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