From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugzilla-daemon@freedesktop.org Subject: [Bug 90056] Unigine Valley regression since radeon/llvm: Run LLVM's instruction combining pass Date: Wed, 29 Apr 2015 02:06:43 +0000 Message-ID: References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1424007920==" Return-path: Received: from culpepper.freedesktop.org (unknown [131.252.210.165]) by gabe.freedesktop.org (Postfix) with ESMTP id 89E2C6E636 for ; Tue, 28 Apr 2015 19:06:43 -0700 (PDT) In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org --===============1424007920== Content-Type: multipart/alternative; boundary="1430273203.BDEECdc2.32392"; charset="UTF-8" --1430273203.BDEECdc2.32392 Date: Wed, 29 Apr 2015 02:06:43 +0000 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" https://bugs.freedesktop.org/show_bug.cgi?id=90056 --- Comment #12 from Tom Stellard --- (In reply to Andy Furniss from comment #10) > (In reply to Grigori Goronzy from comment #9) > > Created attachment 115409 [details] [review] [review] > > Full shader > > > > That does not help either. Seems to break the SSA somehow. Full shader that > > triggers the bug attached. > > > > The patch I posted earlier help with the the reduced testcase, but not with > > the full shader. Both undef incoming values in phi nodes and undef branch > > conditions cause problems in different ways. > > With the second patch + valley I get - > > valley_x64: LiveVariables.cpp:114: void > llvm::LiveVariables::MarkVirtRegAliveInBlock(llvm::LiveVariables::VarInfo &, > llvm::MachineBasicBlock *, llvm::MachineBasicBlock *, > std::vector &): Assertion `MBB != &MF->front() && > "Can't find reaching def for virtreg"' failed. Did test with only the patch from comment #8 or did you test with both patches? -- You are receiving this mail because: You are the assignee for the bug. --1430273203.BDEECdc2.32392 Date: Wed, 29 Apr 2015 02:06:43 +0000 MIME-Version: 1.0 Content-Type: text/html; charset="UTF-8"

Comment # 12 on bug 90056 from
(In reply to Andy Furniss from comment #10)
> (In reply to Grigori Goronzy from comment #9)
> > Created attachment 115409 [details] [review] [review] [review]
> > Full shader
> > 
> > That does not help either. Seems to break the SSA somehow. Full shader that
> > triggers the bug attached.
> > 
> > The patch I posted earlier help with the the reduced testcase, but not with
> > the full shader. Both undef incoming values in phi nodes and undef branch
> > conditions cause problems in different ways.
> 
> With the second patch + valley I get -
> 
> valley_x64: LiveVariables.cpp:114: void
> llvm::LiveVariables::MarkVirtRegAliveInBlock(llvm::LiveVariables::VarInfo &,
> llvm::MachineBasicBlock *, llvm::MachineBasicBlock *,
> std::vector<MachineBasicBlock *> &): Assertion `MBB != &MF->front() &&
> "Can't find reaching def for virtreg"' failed.

Did test with only the patch from comment #8 or did you test with both patches?


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