[llvm-dev] Fwd: [LLVMdev] SelectionDAG viewers, filter-view-dags question

[Daniel Sanders via llvm-dev]

Hi,

It's changed a few times over the last year. I believe xdg-open spawns whichever application your desktop environment would use to open the file so you should be able to tell it to use dotty.

From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Ryan Taylor via llvm-dev
Sent: 11 August 2015 00:30
To: llvm-dev at lists.llvm.org
Subject: [llvm-dev] Fwd: [LLVMdev] SelectionDAG viewers, filter-view-dags question


Ok, I'm getting this error now, it won't open in dotty like it used to in 3.4. Did the program preference order change?

says:

/usr/bin/xdg-open: line 402: htmlview: command not found
console.error
  [CustomizableUI]
  Custom widget with id loop-button does not return a valid node

Has anyone else run into this issue? (again, this problem does not exist if I revert to 3.4 but I'm not sure it's an llvm issue either, I really don't know)

Thanks.

On Sat, Aug 1, 2015 at 3:47 PM, Ryan Taylor <ryta1203 at gmail.com<mailto:ryta1203 at gmail.com>> wrote:

Ah, I missed that subltety. Thanks.
On Aug 1, 2015 2:43 PM, "Mehdi Amini" <mehdi.amini at apple.com<mailto:mehdi.amini at apple.com>> wrote:
The diff is not only the && and || but also the leading !:


diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 58f029fbe9fc..7ee06fc153b2 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -659,7 +659,7 @@ void SelectionDAGISel::CodeGenAndEmitDAG() {
   (void)BlockNumber;
   bool MatchFilterBB = false; (void)MatchFilterBB;
 #ifndef NDEBUG
-  MatchFilterBB = (!FilterDAGBasicBlockName.empty() &&
+  MatchFilterBB = (FilterDAGBasicBlockName.empty() ||
                    FilterDAGBasicBlockName ==
                        FuncInfo->MBB->getBasicBlock()->getName().str());
 #endif

—
Mehdi




On Aug 1, 2015, at 11:07 AM, Ryan Taylor <ryta1203 at gmail.com<mailto:ryta1203 at gmail.com>> wrote:

Simply replacing the && with || did not fix the issue. This issue still exists after making those changes. There is maybe some other code that needs to be changed also?

Thanks.

On Mon, Jul 27, 2015 at 12:45 PM, Ryan Taylor <ryta1203 at gmail.com<mailto:ryta1203 at gmail.com>> wrote:
Daniel,

  Ok, thanks. Simple fix. We'll just make correction in local copy for now, one less thing to port later :)

Thanks.

On Mon, Jul 27, 2015 at 12:29 PM, Daniel Sanders <Daniel.Sanders at imgtec.com<mailto:Daniel.Sanders at imgtec.com>> wrote:
I've just looked at my checkout of 3.6 and it looks like the fix wasn't merged. I don't have the revision number for the fix to hand but in lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp, this:
  MatchFilterBB = (!FilterDAGBasicBlockName.empty() &&
                   FilterDAGBasicBlockName ==
                       FuncInfo->MBB->getBasicBlock()->getName().str());
Should be:
  MatchFilterBB = (FilterDAGBasicBlockName.empty() ||
                   FilterDAGBasicBlockName ==
                       FuncInfo->MBB->getBasicBlock()->getName().str());

The trunk has the correct code so the option should be ok for LLVM 3.7.

From: Ryan Taylor [mailto:ryta1203 at gmail.com<mailto:ryta1203 at gmail.com>]
Sent: 27 July 2015 17:20
To: Daniel Sanders
Cc: llvmdev at cs.uiuc.edu<mailto:llvmdev at cs.uiuc.edu>
Subject: Re: [LLVMdev] SelectionDAG viewers, filter-view-dags question

Daniel,

  We are using 3.6. Someone also pointed out that it was mandatory in 3.6.2 but I have not verified that.


On Mon, Jul 27, 2015 at 12:10 PM, Daniel Sanders <Daniel.Sanders at imgtec.com<mailto:Daniel.Sanders at imgtec.com>> wrote:
It's not supposed to be. There was a short period where it was unintentionally mandatory but this was fixed after I pointed it out during post-commit review.

Which version/revision are you using?

From: llvmdev-bounces at cs.uiuc.edu<mailto:llvmdev-bounces at cs.uiuc.edu> [mailto:llvmdev-bounces at cs.uiuc.edu<mailto:llvmdev-bounces at cs.uiuc.edu>] On Behalf Of Ryan Taylor
Sent: 27 July 2015 16:27
To: llvmdev at cs.uiuc.edu<mailto:llvmdev at cs.uiuc.edu>
Subject: [LLVMdev] SelectionDAG viewers, filter-view-dags question

Is this option currently mandatory? If so, why? If not, I'm not sure what's been added that I need to do differently.

-view-isel-dags opened just fine in dotty in 3.4 and now this does nothing without the filter-view-dags 'option' and now has a different priority program list or something.

I'm just curious why this option should be mandatory?

Thanks.



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