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glsl: Remove optimize_swizzles.

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It will get turned into SSA and copy-propagated in NIR, no need to walk
the IR collapsing it here.

iris shader-db results appear to be noise:

total instructions in shared programs: 8932195 -> 8932147 (<.01%)
instructions in affected programs: 537 -> 489 (-8.94%)
LOST:   12
GAINED: 11

lost/gained are simd32 switches in unigine, l4d2, portal2, asphalt9.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17613>
This commit is contained in:
Emma Anholt
2022-07-18 22:12:36 -07:00
committed by Marge Bot
parent 4123ee3c71
commit 74aea0b840
6 changed files with 1 additions and 125 deletions
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1
src/compiler/glsl/ir_optimization.h
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@@ -105,7 +105,6 @@ bool opt_flatten_nested_if_blocks(exec_list *instructions);
bool do_mat_op_to_vec(exec_list *instructions);
bool do_minmax_prune(exec_list *instructions);
bool do_structure_splitting(exec_list *instructions);
bool optimize_swizzles(exec_list *instructions);
bool do_tree_grafting(exec_list *instructions);
bool do_vec_index_to_cond_assign(exec_list *instructions);
bool do_vec_index_to_swizzle(exec_list *instructions);