Remove unneeded snapshot preps for sunk stores.

1 files changed, 5 insertions, 13 deletions

diff --git a/src/lj_asm_ppc.h b/src/lj_asm_ppc.h
index 85b87bd5..86052577 100644
--- a/src/lj_asm_ppc.h
+++ b/src/lj_asm_ppc.h
@@ -773,7 +773,7 @@ static void asm_newref(ASMState *as, IRIns *ir)
 {
   const CCallInfo *ci = &lj_ir_callinfo[IRCALL_lj_tab_newkey];
   IRRef args[3];
-  if (ir->r == RID_SINK)  /* Sink newref. */
+  if (ir->r == RID_SINK)
     return;
   args[0] = ASMREF_L;     /* lua_State *L */
   args[1] = ir->op1;      /* GCtab *t     */
@@ -894,9 +894,7 @@ static void asm_fload(ASMState *as, IRIns *ir)
 
 static void asm_fstore(ASMState *as, IRIns *ir)
 {
-  if (ir->r == RID_SINK) {  /* Sink store. */
-    asm_snap_prep(as);
-  } else {
+  if (ir->r != RID_SINK) {
     Reg src = ra_alloc1(as, ir->op2, RSET_GPR);
     IRIns *irf = IR(ir->op1);
     Reg idx = ra_alloc1(as, irf->op1, rset_exclude(RSET_GPR, src));
@@ -918,10 +916,8 @@ static void asm_xload(ASMState *as, IRIns *ir)
 static void asm_xstore(ASMState *as, IRIns *ir, int32_t ofs)
 {
   IRIns *irb;
-  if (ir->r == RID_SINK) {  /* Sink store. */
-    asm_snap_prep(as);
+  if (ir->r == RID_SINK)
     return;
-  }
   if (ofs == 0 && mayfuse(as, ir->op2) && (irb = IR(ir->op2))->o == IR_BSWAP &&
       ra_noreg(irb->r) && (irt_isint(ir->t) || irt_isu32(ir->t))) {
     /* Fuse BSWAP with XSTORE to stwbrx. */
@@ -978,10 +974,8 @@ static void asm_ahustore(ASMState *as, IRIns *ir)
   RegSet allow = RSET_GPR;
   Reg idx, src = RID_NONE, type = RID_NONE;
   int32_t ofs = AHUREF_LSX;
-  if (ir->r == RID_SINK) {  /* Sink store. */
-    asm_snap_prep(as);
+  if (ir->r == RID_SINK)
     return;
-  }
   if (irt_isnum(ir->t)) {
     src = ra_alloc1(as, ir->op2, RSET_FPR);
   } else {
@@ -1761,9 +1755,7 @@ static void asm_hiop(ASMState *as, IRIns *ir)
     return;
   } else if ((ir-1)->o == IR_XSTORE) {
     as->curins--;  /* Handle both stores here. */
-    if ((ir-1)->r == RID_SINK) {
-      asm_snap_prep(as);
-    } else {
+    if ((ir-1)->r != RID_SINK) {
       asm_xstore(as, ir, 0);
       asm_xstore(as, ir-1, 4);
     }