diff --git a/src/amd/compiler/aco_ssa_elimination.cpp b/src/amd/compiler/aco_ssa_elimination.cpp index 8229001168d..477b59ba6be 100644 --- a/src/amd/compiler/aco_ssa_elimination.cpp +++ b/src/amd/compiler/aco_ssa_elimination.cpp @@ -398,6 +398,10 @@ try_optimize_branching_sequence(ssa_elimination_ctx& ctx, Block& block, const in regs_intersect(Definition(exec, ctx.program->lane_mask), def); })) break; + + if (instr->isPseudo() && instr->pseudo().needs_scratch_reg && + regs_intersect(exec_copy_def, Definition(instr->pseudo().scratch_sgpr, s1))) + break; } } @@ -437,6 +441,9 @@ try_optimize_branching_sequence(ssa_elimination_ctx& ctx, Block& block, const in for (const Definition& def : instr->definitions) if (regs_intersect(exec_copy_def, def)) return; + if (instr->isPseudo() && instr->pseudo().needs_scratch_reg && + regs_intersect(exec_copy_def, Definition(instr->pseudo().scratch_sgpr, s1))) + return; } /* Check if the instruction may implicitly read VCC, eg. v_cndmask or add with carry.