1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/config/mips/mips.c b/gcc/config/mips/mips.c
index c1cf631..e3100d1 100644
--- a/gcc/config/mips/mips.c
+++ b/gcc/config/mips/mips.c
@@ -3883,6 +3883,33 @@ mips_block_move_loop (rtx dest, rtx src, HOST_WIDE_INT length)
     mips_block_move_straight (dest, src, leftover);
 }
 
+
+/* Expand a loop of synci insns for the address range [BEGIN, END).  */
+
+void
+mips_expand_synci_loop (rtx begin, rtx end)
+{
+  rtx inc, label, cmp, cmp_result;
+
+  /* Load INC with the cache line size (rdhwr INC,$1). */
+  inc = gen_reg_rtx (SImode);
+  emit_insn (gen_rdhwr (inc, const1_rtx));
+
+  /* Loop back to here.  */
+  label = gen_label_rtx ();
+  emit_label (label);
+
+  emit_insn (gen_synci (begin));
+
+  cmp = gen_reg_rtx (Pmode);
+  mips_emit_binary (GTU, cmp, begin, end);
+
+  mips_emit_binary (PLUS, begin, begin, inc);
+
+  cmp_result = gen_rtx_EQ (VOIDmode, cmp, const0_rtx);
+  emit_jump_insn (gen_condjump (cmp_result, label));
+}
+
 /* Expand a movmemsi instruction.  */
 
 bool