diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp index ceaaf5f..6aec506 100644 --- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp +++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp @@ -538,6 +538,14 @@ fs_visitor::try_constant_propagate(fs_inst *inst, acp_entry *entry) entry->dst, entry->regs_written)) continue; + /* If the type sizes don't match each channel of the instruction is + * either extracting a portion of the constant (which could be handled + * with some effort but the code below doesn't) or reading multiple + * channels of the source at once. + */ + if (type_sz(inst->src[i].type) != type_sz(entry->dst.type)) + continue; + fs_reg val = entry->src; val.type = inst->src[i].type; |