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authorMatt Turner <[email protected]>2015-01-13 15:35:57 -0800
committerMatt Turner <[email protected]>2015-03-02 18:13:28 -0800
commite214000f258ae564e64d839cccee9418526f226b (patch)
tree23f912e4afb7c38ccd84c5d5d2966cd3522b3d3b /src/mapi/Makefile.am
parentc4925d7f3b66d63fbdd7b7607cd809db1e58bee9 (diff)
i965/fs: Don't use backend_visitor::instructions after creating the CFG.
This is a fix for a regression introduced in commit a9f8296d ("i965/fs: Preserve the CFG in a few more places."). The errata this code works around is described in a comment before the function: "[DevBW, DevCL] Errata: A destination register from a send can not be used as a destination register until after it has been sourced by an instruction with a different destination register. The framebuffer write's sources must be in message registers, which SEND instructions cannot have as a destination. There's no way for this errata to affect anything at the end of the program. Just remove the code. Cc: 10.4, 10.5 <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84613 Reviewed-by: Kenneth Graunke <[email protected]>
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