Bug 89784

Summary:	Complex shader compilation fails (spilling related?)
Product:	Mesa	Reporter:	Grigori Goronzy <greg>
Component:	Drivers/Gallium/radeonsi	Assignee:	Default DRI bug account <dri-devel>
Status:	RESOLVED FIXED	QA Contact:	Default DRI bug account <dri-devel>
Severity:	normal
Priority:	medium
Version:	git
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	LLVM assembly of shader

Description Grigori Goronzy 2015-03-26 23:10:37 UTC

Created attachment 114655 [details]
LLVM assembly of shader

The attached shader (LLVM assembly, dumped with R600_DEBUG=ps) fails to compile with latest LLVM trunk. AFAIR it worked at some point with some combination of Mesa and LLVM, but I couldn't reproduce this.

Compile with
> llc -march=amdgcn -mcpu=SI -mattr=+vgpr-spilling -verify-machineinstrs < bug.ll

to reproduce. It looks like it is spilling related.

Comment 1 Grigori Goronzy 2015-04-25 10:51:59 UTC

I can't reproduce this anymore. Closing.

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