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authorFrancisco Jerez <currojerez@riseup.net>2015-07-28 11:25:59 +0300
committerFrancisco Jerez <currojerez@riseup.net>2015-07-29 13:27:12 +0300
commitd0a42b457fb905ce2cc12bb05110ef63656221c9 (patch)
treeb10ffa55d164fda19e13cc4164d0844c29319ac4 /src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp
parent2294ba9565fbae49f1fc77ca171e9d6aafa34005 (diff)
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i965/fs: Detect multi-register MOVs correctly in register_coalesce.
register_coalesce() was considering the exec_size of the MOV instruction alone to decide whether the register at offset+1 of the source VGRF was being copied to inst->dst.reg_offset+1 of the destination VGRF, which is only a valid assumption if the move has a 32-bit execution type. Use regs_read() instead to find out the number of registers copied by the instruction. Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp b/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp
index a253c81..4f00b7f 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_register_coalesce.cpp
@@ -195,7 +195,7 @@ fs_visitor::register_coalesce()
continue;
}
reg_to_offset[offset] = inst->dst.reg_offset;
- if (inst->exec_size == 16)
+ if (inst->regs_written > 1)
reg_to_offset[offset + 1] = inst->dst.reg_offset + 1;
mov[offset] = inst;
channels_remaining -= inst->regs_written;