More improvements to sparc VIS vec_init code generation.

[pf3gnuchains/gcc-fork.git] / gcc / gcse.c

diff --git a/gcc/gcse.c b/gcc/gcse.c
index fd1455f..8adbc38 100644 (file)
--- a/gcc/gcse.c
+++ b/gcc/gcse.c
@@ -732,7 +732,7 @@ want_to_gcse_p (rtx x, int *max_distance_ptr)
   /* GCSE'ing constants:
 
      We do not specifically distinguish between constant and non-constant
   /* GCSE'ing constants:
 
      We do not specifically distinguish between constant and non-constant

-     expressions in PRE and Hoist.  We use rtx_cost below to limit
+     expressions in PRE and Hoist.  We use set_src_cost below to limit

      the maximum distance simple expressions can travel.
 
      Nevertheless, constants are much easier to GCSE, and, hence,
      the maximum distance simple expressions can travel.
 
      Nevertheless, constants are much easier to GCSE, and, hence,


@@ -773,7 +773,7 @@ want_to_gcse_p (rtx x, int *max_distance_ptr)
 
          gcc_assert (!optimize_function_for_speed_p (cfun)
                      && optimize_function_for_size_p (cfun));
 
          gcc_assert (!optimize_function_for_speed_p (cfun)
                      && optimize_function_for_size_p (cfun));

-         cost = rtx_cost (x, SET, 0);
+         cost = set_src_cost (x, 0);

 
          if (cost < COSTS_N_INSNS (GCSE_UNRESTRICTED_COST))
            {
 
          if (cost < COSTS_N_INSNS (GCSE_UNRESTRICTED_COST))
            {


@@ -3713,17 +3713,15 @@ static bool
 gate_rtl_pre (void)
 {
   return optimize > 0 && flag_gcse
 gate_rtl_pre (void)
 {
   return optimize > 0 && flag_gcse

-         && optimize_function_for_speed_p (cfun);
+    && !cfun->calls_setjmp
+    && optimize_function_for_speed_p (cfun)
+    && dbg_cnt (pre);

 }
 
 static unsigned int
 execute_rtl_pre (void)
 {
   int changed;
 }
 
 static unsigned int
 execute_rtl_pre (void)
 {
   int changed;

-
-  if (cfun->calls_setjmp || !dbg_cnt (pre))
-    return 0;
-

   delete_unreachable_blocks ();
   df_analyze ();
   changed = one_pre_gcse_pass ();
   delete_unreachable_blocks ();
   df_analyze ();
   changed = one_pre_gcse_pass ();


@@ -3737,20 +3735,18 @@ static bool
 gate_rtl_hoist (void)
 {
   return optimize > 0 && flag_gcse
 gate_rtl_hoist (void)
 {
   return optimize > 0 && flag_gcse

-        /* It does not make sense to run code hoisting unless we are optimizing
-         for code size -- it rarely makes programs faster, and can make then
-         bigger if we did PRE (when optimizing for space, we don't run PRE).  */
-        && optimize_function_for_size_p (cfun);
+    && !cfun->calls_setjmp
+    /* It does not make sense to run code hoisting unless we are optimizing
+       for code size -- it rarely makes programs faster, and can make then
+       bigger if we did PRE (when optimizing for space, we don't run PRE).  */
+    && optimize_function_for_size_p (cfun)
+    && dbg_cnt (hoist);

 }
 
 static unsigned int
 execute_rtl_hoist (void)
 {
   int changed;
 }
 
 static unsigned int
 execute_rtl_hoist (void)
 {
   int changed;

-
-  if (cfun->calls_setjmp || !dbg_cnt (hoist))
-      return 0;
-

   delete_unreachable_blocks ();
   df_analyze ();
   changed = one_code_hoisting_pass ();
   delete_unreachable_blocks ();
   df_analyze ();
   changed = one_code_hoisting_pass ();


@@ -3776,7 +3772,6 @@ struct rtl_opt_pass pass_rtl_pre =
   0,                                    /* properties_destroyed */
   0,                                    /* todo_flags_start */
   TODO_df_finish | TODO_verify_rtl_sharing |
   0,                                    /* properties_destroyed */
   0,                                    /* todo_flags_start */
   TODO_df_finish | TODO_verify_rtl_sharing |

-  TODO_dump_func |

   TODO_verify_flow | TODO_ggc_collect   /* todo_flags_finish */
  }
 };
   TODO_verify_flow | TODO_ggc_collect   /* todo_flags_finish */
  }
 };


@@ -3797,7 +3792,6 @@ struct rtl_opt_pass pass_rtl_hoist =
   0,                                    /* properties_destroyed */
   0,                                    /* todo_flags_start */
   TODO_df_finish | TODO_verify_rtl_sharing |
   0,                                    /* properties_destroyed */
   0,                                    /* todo_flags_start */
   TODO_df_finish | TODO_verify_rtl_sharing |

-  TODO_dump_func |

   TODO_verify_flow | TODO_ggc_collect   /* todo_flags_finish */
  }
 };
   TODO_verify_flow | TODO_ggc_collect   /* todo_flags_finish */
  }
 };