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-rw-r--r--src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp11
1 files changed, 9 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
index 11571ad3b0a..278ec7b3601 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_copy_propagation.cpp
@@ -73,7 +73,8 @@ is_channel_updated(vec4_instruction *inst, src_reg *values[4], int ch)
}
static bool
-try_constant_propagation(vec4_instruction *inst, int arg, src_reg *values[4])
+try_constant_propagation(struct brw_context *brw, vec4_instruction *inst,
+ int arg, src_reg *values[4])
{
/* For constant propagation, we only handle the same constant
* across all 4 channels. Some day, we should handle the 8-bit
@@ -110,6 +111,12 @@ try_constant_propagation(vec4_instruction *inst, int arg, src_reg *values[4])
inst->src[arg] = value;
return true;
+ case SHADER_OPCODE_POW:
+ case SHADER_OPCODE_INT_QUOTIENT:
+ case SHADER_OPCODE_INT_REMAINDER:
+ if (brw->gen < 8)
+ break;
+ /* fallthrough */
case BRW_OPCODE_DP2:
case BRW_OPCODE_DP3:
case BRW_OPCODE_DP4:
@@ -360,7 +367,7 @@ vec4_visitor::opt_copy_propagation()
if (c != 4)
continue;
- if (try_constant_propagation(inst, i, values) ||
+ if (try_constant_propagation(brw, inst, i, values) ||
try_copy_propagation(inst, i, values))
progress = true;
}