ir3/legalize: Handle inserting (ei) with preamble
Make sure that shaders with a preamble are still considered early-release so that we don't regress them. Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13148>
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@@ -661,6 +661,19 @@ ir3_start_block(struct ir3 *ir)
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return list_first_entry(&ir->block_list, struct ir3_block, node);
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}
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static inline struct ir3_block *
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ir3_after_preamble(struct ir3 *ir)
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{
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struct ir3_block *block = ir3_start_block(ir);
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/* The preamble will have a usually-empty else branch, and we want to skip
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* that to get to the block after the preamble.
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*/
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if (block->brtype == IR3_BRANCH_SHPS)
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return block->successors[1]->successors[0];
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else
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return block;
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}
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void ir3_block_add_predecessor(struct ir3_block *block, struct ir3_block *pred);
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void ir3_block_add_physical_predecessor(struct ir3_block *block,
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struct ir3_block *pred);
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@@ -136,7 +136,7 @@ legalize_block(struct ir3_legalize_ctx *ctx, struct ir3_block *block)
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* with the end of the program.
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*/
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assert(input_count == 0 || !ctx->early_input_release ||
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block == ir3_start_block(block->shader));
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block == ir3_after_preamble(block->shader));
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/* remove all the instructions from the list, we'll be adding
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* them back in as we go
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@@ -953,7 +953,7 @@ ir3_legalize(struct ir3 *ir, struct ir3_shader_variant *so, int *max_bary)
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* a5xx and a6xx do automatically release varying storage at the end.
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*/
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ctx->early_input_release = true;
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struct ir3_block *start_block = ir3_start_block(ir);
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struct ir3_block *start_block = ir3_after_preamble(ir);
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foreach_block (block, &ir->block_list) {
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foreach_instr (instr, &block->instr_list) {
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if (is_input(instr) && block != start_block) {
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