Bug 83735

Summary:	[mesa-10.2.x] broken with llvm-3.5 and old CPUs
Product:	Mesa	Reporter:	Laurent carlier <lordheavym>
Component:	Mesa core	Assignee:	mesa-dev
Status:	RESOLVED FIXED	QA Contact:
Severity:	blocker
Priority:	medium	CC:	evangelos
Version:	10.2
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	[PATCH 1/2] gallivm: Disable workaround for PR12833 on LLVM 3.2+ [PATCH 2/2] gallivm: set mcpu when initializing llvm execution engine

Description Laurent carlier 2014-09-10 20:03:01 UTC

mesa-10.2 fail to run with llvm-3.5 and old CPUs:

$ glxgears
LLVM ERROR: Cannot select: intrinsic %llvm.x86.sse41.pblendvb

it seem that mesa-10.3 branch and git master already provide the fix:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=cad60420d5ea36a4b6fa2e6c91317f71423aa63e

https://bugs.archlinux.org/task/41918

Comment 1 Evangelos Foutras 2014-09-10 22:42:38 UTC

Created attachment 106091 [details] [review]
[PATCH 1/2] gallivm: Disable workaround for PR12833 on LLVM 3.2+

Comment 2 Evangelos Foutras 2014-09-10 22:43:20 UTC

Created attachment 106092 [details] [review]
[PATCH 2/2] gallivm: set mcpu when initializing llvm execution engine

Comment 3 Evangelos Foutras 2014-09-10 22:45:48 UTC

I have attached patches from the master branch. The second patch is slightly modified to apply to the 10.2 branch.

Comment 4 Emil Velikov 2014-09-17 02:32:52 UTC

Thanks gents. I've slightly tweaked the second patch and push both in.
They should be out with mesa 10.2.8 coming this Friday

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