Remove pow() splitting and cleanup backends.

1 files changed, 0 insertions, 21 deletions

diff --git a/src/lj_opt_split.c b/src/lj_opt_split.c
index e526b49d..7925cfa5 100644
--- a/src/lj_opt_split.c
+++ b/src/lj_opt_split.c
@@ -403,27 +403,6 @@ static void split_ir(jit_State *J)
         hi = split_call_li(J, hisubst, oir, ir, IRCALL_lj_vm_powi);
         break;
       case IR_FPMATH:
-        /* Try to rejoin pow from EXP2, MUL and LOG2. */
-        if (nir->op2 == IRFPM_EXP2 && nir->op1 > J->loopref) {
-          IRIns *irp = IR(nir->op1);
-          if (irp->o == IR_CALLN && irp->op2 == IRCALL_softfp_mul) {
-            IRIns *irm4 = IR(irp->op1);
-            IRIns *irm3 = IR(irm4->op1);
-            IRIns *irm12 = IR(irm3->op1);
-            IRIns *irl1 = IR(irm12->op1);
-            if (irm12->op1 > J->loopref && irl1->o == IR_CALLN &&
-                irl1->op2 == IRCALL_lj_vm_log2) {
-              IRRef tmp = irl1->op1;  /* Recycle first two args from LOG2. */
-              IRRef arg3 = irm3->op2, arg4 = irm4->op2;
-              J->cur.nins--;
-              tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, arg3);
-              tmp = split_emit(J, IRT(IR_CARG, IRT_NIL), tmp, arg4);
-              ir->prev = tmp = split_emit(J, IRTI(IR_CALLN), tmp, IRCALL_pow);
-              hi = split_emit(J, IRT(IR_HIOP, IRT_SOFTFP), tmp, tmp);
-              break;
-            }
-          }
-        }
         hi = split_call_l(J, hisubst, oir, ir, IRCALL_lj_vm_floor + ir->op2);
         break;
       case IR_LDEXP: