From 221d5de01309b261d37ff3c800ce0b3d0e5779b5 Mon Sep 17 00:00:00 2001 From: John McCall Date: Mon, 30 May 2011 01:08:04 +0000 Subject: [PATCH] Add the test case for phis in the outer landing pad during the inliner's forwarding of eh.resume that I promised yesterday. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132307 91177308-0d34-0410-b5e6-96231b3b80d8 --- test/Transforms/Inline/inline_invoke.ll | 112 +++++++++++++++++++++++- 1 file changed, 111 insertions(+), 1 deletion(-) diff --git a/test/Transforms/Inline/inline_invoke.ll b/test/Transforms/Inline/inline_invoke.ll index 93d4ef346c2..110a82823e1 100644 --- a/test/Transforms/Inline/inline_invoke.ll +++ b/test/Transforms/Inline/inline_invoke.ll @@ -4,6 +4,8 @@ ; by appending selectors and forwarding _Unwind_Resume directly to the ; enclosing landing pad. +;; Test 1 - basic functionality. + %struct.A = type { i8 } @_ZTIi = external constant i8* @@ -12,6 +14,8 @@ declare void @_ZN1AC1Ev(%struct.A*) declare void @_ZN1AD1Ev(%struct.A*) +declare void @use(i32) nounwind + declare i8* @llvm.eh.exception() nounwind readonly declare i32 @llvm.eh.selector(i8*, i8*, ...) nounwind @@ -105,4 +109,110 @@ eh.resume: ; CHECK: [[LPAD]]: ; CHECK-NEXT: phi i8* [ ; CHECK-NEXT: phi i32 [ -; CHECK-NEXT: call i32 @llvm.eh.typeid.for( \ No newline at end of file +; CHECK-NEXT: call i32 @llvm.eh.typeid.for( + + +;; Test 2 - Correctly handle phis in outer landing pads. + +define void @test1_out() uwtable ssp { +entry: + invoke void @test0_in() + to label %cont unwind label %lpad + +cont: + invoke void @test0_in() + to label %ret unwind label %lpad + +ret: + ret void + +lpad: + %x = phi i32 [ 0, %entry ], [ 1, %cont ] + %y = phi i32 [ 1, %entry ], [ 4, %cont ] + %exn = call i8* @llvm.eh.exception() nounwind + %eh.selector = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* %exn, i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* bitcast (i8** @_ZTIi to i8*)) nounwind + %0 = call i32 @llvm.eh.typeid.for(i8* bitcast (i8** @_ZTIi to i8*)) nounwind + %1 = icmp eq i32 %eh.selector, %0 + br i1 %1, label %catch, label %eh.resume + +catch: + %ignored = call i8* @__cxa_begin_catch(i8* %exn) nounwind + call void @use(i32 %x) + call void @use(i32 %y) + call void @__cxa_end_catch() nounwind + br label %ret + +eh.resume: + call void @llvm.eh.resume(i8* %exn, i32 %eh.selector) noreturn + unreachable +} + +; CHECK: define void @test1_out() +; CHECK: [[A2:%.*]] = alloca %struct.A, +; CHECK: [[B2:%.*]] = alloca %struct.A, +; CHECK: [[A1:%.*]] = alloca %struct.A, +; CHECK: [[B1:%.*]] = alloca %struct.A, +; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A1]]) +; CHECK-NEXT: unwind label %[[LPAD:[^\s]+]] +; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B1]]) +; CHECK-NEXT: unwind label %[[LPAD1:[^\s]+]] +; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B1]]) +; CHECK-NEXT: unwind label %[[LPAD1]] +; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A1]]) +; CHECK-NEXT: unwind label %[[LPAD]] + +; Inner landing pad from first inlining. +; CHECK: [[LPAD1]]: +; CHECK-NEXT: [[EXN1:%.*]] = call i8* @llvm.eh.exception() +; CHECK-NEXT: [[SEL1:%.*]] = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* [[EXN1]], i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i32 0, i8* bitcast (i8** @_ZTIi to i8*)) +; CHECK-NEXT: invoke void @_ZN1AD1Ev(%struct.A* [[A1]]) +; CHECK-NEXT: to label %[[RESUME1:[^\s]+]] unwind +; CHECK: [[RESUME1]]: +; CHECK-NEXT: br label %[[LPAD_JOIN1:[^\s]+]] + +; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[A2]]) +; CHECK-NEXT: unwind label %[[LPAD]] +; CHECK: invoke void @_ZN1AC1Ev(%struct.A* [[B2]]) +; CHECK-NEXT: unwind label %[[LPAD2:[^\s]+]] +; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[B2]]) +; CHECK-NEXT: unwind label %[[LPAD2]] +; CHECK: invoke void @_ZN1AD1Ev(%struct.A* [[A2]]) +; CHECK-NEXT: unwind label %[[LPAD]] + +; Inner landing pad from second inlining. +; CHECK: [[LPAD2]]: +; CHECK-NEXT: [[EXN2:%.*]] = call i8* @llvm.eh.exception() +; CHECK-NEXT: [[SEL2:%.*]] = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* [[EXN2]], i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i32 0, i8* bitcast (i8** @_ZTIi to i8*)) +; CHECK-NEXT: invoke void @_ZN1AD1Ev(%struct.A* [[A2]]) +; CHECK-NEXT: to label %[[RESUME2:[^\s]+]] unwind +; CHECK: [[RESUME2]]: +; CHECK-NEXT: br label %[[LPAD_JOIN2:[^\s]+]] + +; CHECK: ret void + +; CHECK: [[LPAD]]: +; CHECK-NEXT: [[X:%.*]] = phi i32 [ 0, %entry ], [ 0, {{%.*}} ], [ 1, %cont ], [ 1, {{%.*}} ] +; CHECK-NEXT: [[Y:%.*]] = phi i32 [ 1, %entry ], [ 1, {{%.*}} ], [ 4, %cont ], [ 4, {{%.*}} ] +; CHECK-NEXT: [[EXN:%.*]] = call i8* @llvm.eh.exception() +; CHECK-NEXT: [[SEL:%.*]] = call i32 (i8*, i8*, ...)* @llvm.eh.selector(i8* [[EXN]], i8* bitcast (i32 (...)* @__gxx_personality_v0 to i8*), i8* bitcast (i8** @_ZTIi to i8*)) +; CHECK-NEXT: br label %[[LPAD_JOIN2]] + +; CHECK: [[LPAD_JOIN2]]: +; CHECK-NEXT: [[XJ2:%.*]] = phi i32 [ [[X]], %[[LPAD]] ], [ 1, %[[RESUME2]] ] +; CHECK-NEXT: [[YJ2:%.*]] = phi i32 [ [[Y]], %[[LPAD]] ], [ 4, %[[RESUME2]] ] +; CHECK-NEXT: [[EXNJ2:%.*]] = phi i8* [ [[EXN]], %[[LPAD]] ], [ [[EXN2]], %[[RESUME2]] ] +; CHECK-NEXT: [[SELJ2:%.*]] = phi i32 [ [[SEL]], %[[LPAD]] ], [ [[SEL2]], %[[RESUME2]] ] +; CHECK-NEXT: br label %[[LPAD_JOIN1]] + +; CHECK: [[LPAD_JOIN1]]: +; CHECK-NEXT: [[XJ1:%.*]] = phi i32 [ [[XJ2]], %[[LPAD_JOIN2]] ], [ 0, %[[RESUME1]] ] +; CHECK-NEXT: [[YJ1:%.*]] = phi i32 [ [[YJ2]], %[[LPAD_JOIN2]] ], [ 1, %[[RESUME1]] ] +; CHECK-NEXT: [[EXNJ1:%.*]] = phi i8* [ [[EXNJ2]], %[[LPAD_JOIN2]] ], [ [[EXN1]], %[[RESUME1]] ] +; CHECK-NEXT: [[SELJ1:%.*]] = phi i32 [ [[SELJ2]], %[[LPAD_JOIN2]] ], [ [[SEL1]], %[[RESUME1]] ] +; CHECK-NEXT: [[T:%.*]] = call i32 @llvm.eh.typeid.for( +; CHECK-NEXT: icmp eq i32 [[SELJ1]], [[T]] + +; CHECK: call void @use(i32 [[XJ1]]) +; CHECK: call void @use(i32 [[YJ1]]) + +; CHECK: call void @llvm.eh.resume(i8* [[EXNJ1]], i32 [[SELJ1]]) -- 2.34.1