[PATCH] r600g: reorder LIT instructions to support src == dst

[Pierre-Eric Pelloux-Prayer]

Hi,

the attached patch should be an improvement over Vadim Girlin's patch
fixing LIT instruction for r600g (commit
2fe39b46e73aea37152777fe11d489e0b1bc3f92).

Instructions used in tgsi_lit have been reordered to always write to a
dst channel after the same channel in src has been read (so if src ==
dst, input values are not overwritten before being used).

I've sent the accompagnying test case to piglit ML.

Pierre-Eric
-------------- next part --------------
A non-text attachment was scrubbed...
Name: 0001-r600g-reorder-LIT-instructions-to-support-src-dst.patch
Type: text/x-patch
Size: 3201 bytes
Desc: not available
URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20110620/c9d11834/attachment.bin>