* 30_threads/thread/native_handle/typesizes.cc: Do not run on cygwin.

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

diff --git a/gcc/sel-sched.c b/gcc/sel-sched.c
index 92ba222..2af01ae 100644 (file)
--- a/gcc/sel-sched.c
+++ b/gcc/sel-sched.c
@@ -794,8 +794,8 @@ substitute_reg_in_expr (expr_t expr, insn_t insn, bool undo)
          /* Do not allow clobbering the address register of speculative
              insns.  */
          if ((EXPR_SPEC_DONE_DS (expr) & SPECULATIVE)
-              && bitmap_bit_p (VINSN_REG_USES (EXPR_VINSN (expr)),
-                              expr_dest_regno (expr)))
+              && register_unavailable_p (VINSN_REG_USES (EXPR_VINSN (expr)),
+                                        expr_dest_reg (expr)))
            EXPR_TARGET_AVAILABLE (expr) = false;
 
          return true;
@@ -813,18 +813,12 @@ count_occurrences_1 (rtx *cur_rtx, void *arg)
 {
   rtx_search_arg_p p = (rtx_search_arg_p) arg;
 
-  /* The last param FOR_GCSE is true, because otherwise it performs excessive
-    substitutions like
-       r8 = r33
-       r16 = r33
-    for the last insn it presumes r33 equivalent to r8, so it changes it to
-    r33.  Actually, there's no change, but it spoils debugging.  */
-  if (exp_equiv_p (*cur_rtx, p->x, 0, true))
-    {
-      /* Bail out if we occupy more than one register.  */
-      if (REG_P (*cur_rtx)
-          && HARD_REGISTER_P (*cur_rtx)
-          && hard_regno_nregs[REGNO(*cur_rtx)][GET_MODE (*cur_rtx)] > 1)
+  if (REG_P (*cur_rtx) && REGNO (*cur_rtx) == REGNO (p->x))
+    {
+      /* Bail out if mode is different or more than one register is used.  */
+      if (GET_MODE (*cur_rtx) != GET_MODE (p->x)
+          || (HARD_REGISTER_P (*cur_rtx)
+             && hard_regno_nregs[REGNO(*cur_rtx)][GET_MODE (*cur_rtx)] > 1))
         {
           p->n = 0;
           return 1;
@@ -837,7 +831,6 @@ count_occurrences_1 (rtx *cur_rtx, void *arg)
     }
 
   if (GET_CODE (*cur_rtx) == SUBREG
-      && REG_P (p->x)
       && (!REG_P (SUBREG_REG (*cur_rtx))
          || REGNO (SUBREG_REG (*cur_rtx)) == REGNO (p->x)))
     {
@@ -859,6 +852,7 @@ count_occurrences_equiv (rtx what, rtx where)
 {
   struct rtx_search_arg arg;
 
+  gcc_assert (REG_P (what));
   arg.x = what;
   arg.n = 0;
 
@@ -1581,7 +1575,7 @@ verify_target_availability (expr_t expr, regset used_regs,
   regno = expr_dest_regno (expr);
   mode = GET_MODE (EXPR_LHS (expr));
   target_available = EXPR_TARGET_AVAILABLE (expr) == 1;
-  n = reload_completed ? hard_regno_nregs[regno][mode] : 1;
+  n = HARD_REGISTER_NUM_P (regno) ? hard_regno_nregs[regno][mode] : 1;
 
   live_available = hard_available = true;
   for (i = 0; i < n; i++)
@@ -3631,12 +3625,12 @@ av_set_could_be_blocked_by_bookkeeping_p (av_set_t orig_ops, void *static_params
      renaming.  Check with the right register instead.  */
   if (sparams->dest && REG_P (sparams->dest))
     {
-      unsigned regno = REGNO (sparams->dest);
+      rtx reg = sparams->dest;
       vinsn_t failed_vinsn = INSN_VINSN (sparams->failed_insn);
 
-      if (bitmap_bit_p (VINSN_REG_SETS (failed_vinsn), regno)
-         || bitmap_bit_p (VINSN_REG_USES (failed_vinsn), regno)
-         || bitmap_bit_p (VINSN_REG_CLOBBERS (failed_vinsn), regno))
+      if (register_unavailable_p (VINSN_REG_SETS (failed_vinsn), reg)
+         || register_unavailable_p (VINSN_REG_USES (failed_vinsn), reg)
+         || register_unavailable_p (VINSN_REG_CLOBBERS (failed_vinsn), reg))
        return true;
     }