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-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp40
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.h1
2 files changed, 11 insertions, 30 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 68bcbd08051..8f2056ee049 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1766,21 +1766,21 @@ fs_visitor::compact_virtual_grfs()
return progress;
}
-/*
- * Implements array access of uniforms by inserting a
- * PULL_CONSTANT_LOAD instruction.
+/**
+ * Assign UNIFORM file registers to either push constants or pull constants.
*
- * Unlike temporary GRF array access (where we don't support it due to
- * the difficulty of doing relative addressing on instruction
- * destinations), we could potentially do array access of uniforms
- * that were loaded in GRF space as push constants. In real-world
- * usage we've seen, though, the arrays being used are always larger
- * than we could load as push constants, so just always move all
- * uniform array access out to a pull constant buffer.
+ * We allow a fragment shader to have more than the specified minimum
+ * maximum number of fragment shader uniform components (64). If
+ * there are too many of these, they'd fill up all of register space.
+ * So, this will push some of them out to the pull constant buffer and
+ * update the program to load them. We also use pull constants for all
+ * indirect constant loads because we don't support indirect accesses in
+ * registers yet.
*/
void
-fs_visitor::move_uniform_array_access_to_pull_constants()
+fs_visitor::assign_constant_locations()
{
+ /* Only the first compile (SIMD8 mode) gets to decide on locations. */
if (dispatch_width != 8)
return;
@@ -1817,23 +1817,6 @@ fs_visitor::move_uniform_array_access_to_pull_constants()
}
}
}
-}
-
-/**
- * Assign UNIFORM file registers to either push constants or pull constants.
- *
- * We allow a fragment shader to have more than the specified minimum
- * maximum number of fragment shader uniform components (64). If
- * there are too many of these, they'd fill up all of register space.
- * So, this will push some of them out to the pull constant buffer and
- * update the program to load them.
- */
-void
-fs_visitor::assign_constant_locations()
-{
- /* Only the first compile (SIMD8 mode) gets to decide on locations. */
- if (dispatch_width != 8)
- return;
/* Find which UNIFORM registers are still in use. */
bool is_live[uniforms];
@@ -4805,7 +4788,6 @@ fs_visitor::optimize()
split_virtual_grfs();
- move_uniform_array_access_to_pull_constants();
assign_constant_locations();
demote_pull_constants();
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 6bca762951f..31f39fe0adc 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -146,7 +146,6 @@ public:
void spill_reg(int spill_reg);
void split_virtual_grfs();
bool compact_virtual_grfs();
- void move_uniform_array_access_to_pull_constants();
void assign_constant_locations();
void demote_pull_constants();
void invalidate_live_intervals();