X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=ir.c;h=4c41c8c478e82532395d354b10fab01687723c95;hb=0f190026e8a0c3612dc619d83cb40d27b1ddea23;hp=a641310644dc950712894eef33cfe9965c9c1d09;hpb=7fc88cfe5b53e6c9740f48335206d5a2b7d03bcb;p=xonotic%2Fgmqcc.git

diff --git a/ir.c b/ir.c
index a641310..4c41c8c 100644
--- a/ir.c
+++ b/ir.c
@@ -600,6 +600,13 @@ bool ir_function_pass_peephole(ir_function *self)
                 if (!instr_is_operation(oper->opcode))
                     continue;
 
+                if (OPTS_FLAG(LEGACY_VECTOR_MATHS)) {
+                    if (oper->opcode == INSTR_MUL_VF && oper->_ops[2]->memberof == oper->_ops[1])
+                        continue;
+                    if (oper->opcode == INSTR_MUL_FV && oper->_ops[1]->memberof == oper->_ops[2])
+                        continue;
+                }
+
                 value = oper->_ops[0];
 
                 /* only do it for SSA values */
@@ -2554,7 +2561,7 @@ static bool ir_block_life_propagate(ir_block *self, ir_block *prev, bool *change
             if (value->memberof && ir_value_life_merge(value->memberof, instr->eid+1))
                 *changed = true;
         }
-        else if (instr->opcode == INSTR_MUL_FV)
+        else if (instr->opcode == INSTR_MUL_FV || instr->opcode == INSTR_LOAD_V)
         {
             value = instr->_ops[1];
             /* the float source will get an additional lifetime */