[llvm] r297014 - New Test-Case for Region Analysis

[Bruno Cardoso Lopes via llvm-commits]

Hi Tobias,

Seems like this test is now failing:
http://green.lab.llvm.org/green/job/Verify-Machineinstrs_AArch64/4982/consoleFull#-90502495649ba4694-19c4-4d7e-bec5-911270d8a58c

Can you take a look?

Thanks,

On Mon, Mar 6, 2017 at 7:20 AM, Tobias Grosser via llvm-commits
<llvm-commits at lists.llvm.org> wrote:
> Author: grosser
> Date: Mon Mar  6 09:20:38 2017
> New Revision: 297014
>
> URL: http://llvm.org/viewvc/llvm-project?rev=297014&view=rev
> Log:
> New Test-Case for Region Analysis
>
> While working on improvements to region info analysis, this test case caused an
> incorrect region bb2 => bb3 to be detected.
>
> Reviewers: grosser
>
> Contributed-by: Nandini Singhal <cs15mtech01004 at iith.ac.in>
>
> Subscribers: llvm-commits
>
> Differential Revision: https://reviews.llvm.org/D30652
>
> Added:
>     llvm/trunk/test/Analysis/RegionInfo/outgoing_edge_1.ll
>
> Added: llvm/trunk/test/Analysis/RegionInfo/outgoing_edge_1.ll
> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Analysis/RegionInfo/outgoing_edge_1.ll?rev=297014&view=auto
> ==============================================================================
> --- llvm/trunk/test/Analysis/RegionInfo/outgoing_edge_1.ll (added)
> +++ llvm/trunk/test/Analysis/RegionInfo/outgoing_edge_1.ll Mon Mar  6 09:20:38 2017
> @@ -0,0 +1,39 @@
> +; REQUIRES: asserts
> +; RUN: opt -regions -analyze < %s | FileCheck %s
> +; RUN: opt < %s -passes='print<regions>' 2>&1 | FileCheck %s
> +
> +; While working on improvements to region info analysis, this test
> +; case caused an incorrect region bb2 => bb3 to be detected.
> +
> +define internal i8 @main_read() nounwind {
> +bb:
> +   br label %bb1
> +
> +bb1:
> +   br i1 true, label %bb2, label %bb7
> +
> +bb2:
> +  br i1 true, label %bb4, label %bb3
> +
> +bb3:
> +  br i1 true, label %bb4, label %bb8
> +
> +bb4:
> +   br label %bb5
> +
> +bb5:
> +   br label %bb6
> +
> +bb6:
> +   br label %bb1
> +
> +bb7:
> +   br label %bb5
> +
> +bb8:
> +   ret i8 1
> +}
> +
> +; CHECK:    [0] bb => <Function Return>
> +; CHECK-NEXT: [1] bb1 => bb8
> +; CHECK-NEXT: End Region tree
>
>
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-- 
Bruno Cardoso Lopes
http://www.brunocardoso.cc