Bug 90631

Summary: Compilation failure for fragment shader with many branches on Sandy Bridge
Product: Mesa Reporter: Link Mauve <bugs>
Component: Drivers/DRI/i965Assignee: Ian Romanick <idr>
Status: RESOLVED FIXED QA Contact: Intel 3D Bugs Mailing List <intel-3d-bugs>
Severity: normal    
Priority: medium    
Version: git   
Hardware: Other   
OS: All   
Whiteboard:
i915 platform: i915 features:
Attachments: apitrace of Citra trying to compile that fragment shader

Description Link Mauve 2015-05-25 15:54:21 UTC 
Created attachment 116029 [details]
apitrace of Citra trying to compile that fragment shader

“Mesa 10.7.0-devel implementation error: Failed to compile fragment shader: FS compile failed: Register spilling not supported with m14 used”

In the attached apitrace, the fragment shader in question is at 1320.

Or alternatively, at https://github.com/citra-emu/citra/blob/master/src/video_core/renderer_opengl/gl_shaders.h#L66
Comment 1 Tapani Pälli 2015-05-26 10:30:53 UTC 
probably same issue as with bug #86469
Comment 2 Link Mauve 2015-10-10 00:29:27 UTC 
I can confirm the commit linked in bug 86469#c16 fixed Citra’s huge shader as well, thanks!

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