[llvm-commits] [llvm] r132307 - /llvm/trunk/test/Transforms/Inline/inline_invoke.ll

[John McCall]

Author: rjmccall
Date: Sun May 29 20:08:04 2011
New Revision: 132307

URL: http://llvm.org/viewvc/llvm-project?rev=132307&view=rev
Log:
Add the test case for phis in the outer landing pad during the inliner's
forwarding of eh.resume that I promised yesterday.


Modified:
    llvm/trunk/test/Transforms/Inline/inline_invoke.ll

Modified: llvm/trunk/test/Transforms/Inline/inline_invoke.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/Inline/inline_invoke.ll?rev=132307&r1=132306&r2=132307&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/Inline/inline_invoke.ll (original)
+++ llvm/trunk/test/Transforms/Inline/inline_invoke.ll Sun May 29 20:08:04 2011
@@ -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 @_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 @@
 ; 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]])