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i965/fs: don't propagate 64-bit immediates

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They can only be used with 1-src instructions, which practically (since
we should've constant-propagated away all 1-src instructions with 64-bit
immediates in NIR) means that they must be kept in separate MOV's and
can't be propagated.

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Connor Abbott 2015-08-03 14:53:05 -07:00 • committed by Samuel Iglesias Gonsálvez
parent 0f1690fd95
commit 0f2e227d5c
1 changed files with 2 additions and 0 deletions
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2
src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
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@ -508,6 +508,8 @@ fs_visitor::try_constant_propagate(fs_inst *inst, acp_entry *entry)
if (entry->src.file != IMM)
return false;
if (type_sz(entry->src.type) > 4)
return false;
if (entry->saturate)
return false;