Improves performance of a dolphin emulator trace I had laying around by
3.60131% +/- 0.995887% (n=128).
---
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp | 23 ++++++++++++++++++-----
1 file changed, 18 insertions(+), 5 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
index 3bdb242..0de53ec 100644
--- a/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+++ b/src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
@@ -1582,14 +1582,27 @@ vec4_visitor::visit(ir_expression *ir)
emit(SHR(dst_reg(offset), op[1], src_reg(4)));
}
- vec4_instruction *pull =
+ if (brw->gen >= 7) {
+ dst_reg grf_offset = dst_reg(this, glsl_type::int_type);
+ grf_offset.type = offset.type;
+
+ emit(MOV(grf_offset, offset));
+
emit(new(mem_ctx) vec4_instruction(this,
- VS_OPCODE_PULL_CONSTANT_LOAD,
+ VS_OPCODE_PULL_CONSTANT_LOAD_GEN7,
dst_reg(packed_consts),
surf_index,
- offset));
- pull->base_mrf = 14;
- pull->mlen = 1;
+ src_reg(grf_offset)));
+ } else {
+ vec4_instruction *pull =
+ emit(new(mem_ctx) vec4_instruction(this,
+ VS_OPCODE_PULL_CONSTANT_LOAD,
+ dst_reg(packed_consts),
+ surf_index,
+ offset));
+ pull->base_mrf = 14;
+ pull->mlen = 1;
+ }
packed_consts.swizzle = swizzle_for_size(ir->type->vector_elements);
packed_consts.swizzle += BRW_SWIZZLE4(const_offset % 16 / 4,
--
1.9.rc1
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