* tree-cfg.c (tree_duplicate_sese_region): Update profile.

[pf3gnuchains/gcc-fork.git] / gcc / sched-deps.c

diff --git a/gcc/sched-deps.c b/gcc/sched-deps.c
index 933d74d..6b54fc8 100644 (file)
--- a/gcc/sched-deps.c
+++ b/gcc/sched-deps.c
@@ -534,6 +534,15 @@ sched_analyze_1 (struct deps *deps, rtx x, rtx insn)
     {
       regno = REGNO (dest);
 
+#ifdef STACK_REGS
+      /* Treat all writes to a stack register as modifying the TOS.  */
+      if (regno >= FIRST_STACK_REG && regno <= LAST_STACK_REG)
+       {
+         SET_REGNO_REG_SET (reg_pending_uses, FIRST_STACK_REG);
+         regno = FIRST_STACK_REG;
+       }
+#endif
+
       /* A hard reg in a wide mode may really be multiple registers.
          If so, mark all of them just like the first.  */
       if (regno < FIRST_PSEUDO_REGISTER)
@@ -684,6 +693,16 @@ sched_analyze_2 (struct deps *deps, rtx x, rtx insn)
     case REG:
       {
        int regno = REGNO (x);
+
+#ifdef STACK_REGS
+      /* Treat all reads of a stack register as modifying the TOS.  */
+      if (regno >= FIRST_STACK_REG && regno <= LAST_STACK_REG)
+       {
+         SET_REGNO_REG_SET (reg_pending_sets, FIRST_STACK_REG);
+         regno = FIRST_STACK_REG;
+       }
+#endif
+
        if (regno < FIRST_PSEUDO_REGISTER)
          {
            int i = hard_regno_nregs[regno][GET_MODE (x)];