From e7d6cd9216eb83805fa617c0e36257c6834ce080 Mon Sep 17 00:00:00 2001 From: Georg Lehmann Date: Wed, 28 Feb 2024 17:44:39 +0100 Subject: [PATCH] aco/post-ra: track pseudo scratch sgpr/scc clobber MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Foz-DB Navi31: Totals from 1439 (1.84% of 78112) affected shaders: Instrs: 1994854 -> 1996650 (+0.09%) CodeSize: 11376864 -> 11383384 (+0.06%) Latency: 14996299 -> 14999317 (+0.02%); split: -0.00%, +0.02% InvThroughput: 2061294 -> 2061518 (+0.01%); split: -0.00%, +0.01% Cc: mesa-stable Reviewed-by: Timur Kristóf Reviewed-by: Daniel Schürmann Part-of: --- src/amd/compiler/aco_optimizer_postRA.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/amd/compiler/aco_optimizer_postRA.cpp b/src/amd/compiler/aco_optimizer_postRA.cpp index 60b20b3cd72..bcc8b333ae9 100644 --- a/src/amd/compiler/aco_optimizer_postRA.cpp +++ b/src/amd/compiler/aco_optimizer_postRA.cpp @@ -157,6 +157,12 @@ save_reg_writes(pr_opt_ctx& ctx, aco_ptr& instr) std::fill(ctx.instr_idx_by_regs[ctx.current_block->index].begin() + r, ctx.instr_idx_by_regs[ctx.current_block->index].begin() + r + dw_size, idx); } + if (instr->isPseudo() && instr->pseudo().needs_scratch_reg) { + if (!instr->pseudo().tmp_in_scc) + ctx.instr_idx_by_regs[ctx.current_block->index][scc] = overwritten_unknown_instr; + ctx.instr_idx_by_regs[ctx.current_block->index][instr->pseudo().scratch_sgpr] = + overwritten_unknown_instr; + } } Idx