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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 22223e1..2a38854 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -521,6 +521,26 @@ fs_inst::is_send_from_grf() const
}
bool
+fs_inst::is_copy_payload(const brw::simple_allocator &grf_alloc) const
+{
+ if (this->opcode != SHADER_OPCODE_LOAD_PAYLOAD)
+ return false;
+
+ fs_reg reg = this->src[0];
+ if (reg.file != GRF || reg.reg_offset != 0 || reg.stride == 0)
+ return false;
+
+ if (grf_alloc.sizes[reg.reg] != this->regs_written)
+ return false;
+
+ for (int i = 1; i < this->sources; i++)
+ if (!this->src[i].equals(::offset(reg, i)))
+ return false;
+
+ return true;
+}
+
+bool
fs_inst::can_do_source_mods(const struct brw_device_info *devinfo)
{
if (devinfo->gen == 6 && is_math())