Now that we don't read each component one-by-one, we don't need the
temoprary vgrf for the offset. More importantly, this register was type
UD while the nir source was type D. This broke copy propagation and left
a redundant MOV in the generated code.
Signed-off-by: Kristian Høgsberg Kristensen <k...@bitplanet.net>
---
src/mesa/drivers/dri/i965/brw_fs_nir.cpp | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
index 00f200a..a82c616 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_nir.cpp
@@ -1521,13 +1521,11 @@ fs_visitor::nir_emit_intrinsic(const fs_builder &bld,
nir_intrinsic_instr *instr
}
/* Get the offset to read from */
- fs_reg offset_reg = vgrf(glsl_type::uint_type);
- unsigned const_offset_bytes = 0;
+ fs_reg offset_reg;
if (has_indirect) {
- bld.MOV(offset_reg, get_nir_src(instr->src[1]));
+ offset_reg = get_nir_src(instr->src[1]);
} else {
- const_offset_bytes = instr->const_index[0];
- bld.MOV(offset_reg, fs_reg(const_offset_bytes));
+ offset_reg = fs_reg(instr->const_index[0]);
}
/* Read the vector */
--
2.6.2
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