Author: pfg
Date: Mon Dec 30 02:52:43 2013
New Revision: 260073
URL: http://svnweb.freebsd.org/changeset/base/260073

Log:
  gcc: small diff reduction wrt gcc43 and Apple GCC.
  
  Obtained from:        gcc 4.3 (rev. 121464, 122528, 124106; GPLv2)
  MFC after:    3 weeks

Modified:
  head/contrib/gcc/ChangeLog.gcc43
  head/contrib/gcc/cp/ChangeLog
  head/contrib/gcc/cp/g++spec.c
  head/contrib/gcc/libgcc2.c
  head/contrib/gcc/libgcc2.h
  head/contrib/gcc/loop-init.c
  head/contrib/gcc/toplev.c
  head/contrib/gcc/tree-ssa-address.c

Modified: head/contrib/gcc/ChangeLog.gcc43
==============================================================================
--- head/contrib/gcc/ChangeLog.gcc43    Mon Dec 30 02:19:48 2013        
(r260072)
+++ head/contrib/gcc/ChangeLog.gcc43    Mon Dec 30 02:52:43 2013        
(r260073)
@@ -156,6 +156,15 @@
        * reload1.c (merge_assigned_reloads) : Do not merge a RELOAD_OTHER
        instruction with a RELOAD_FOR_OPERAND_ADDRESS instruction.
 
+2007-04-24  Richard Henderson  <r...@redhat.com> (r124106)
+
+       * libgcc2.h (AVOID_FP_TYPE_CONVERSION): Rename from 
+       IS_IBM_EXTENDED.  Also define in terms of WIDEST_HARDWARE_FP_SIZE.
+       * libgcc2.c (__floatdisf): Avoid double-word arithmetic when
+       looking for non-zero bits shifted out.  Avoid a recursive call
+       when constructing the scalar.
+       (__floatundisf): Likewise.
+
 2007-04-16  Lawrence Crowl  <cr...@google.com> (r123909)
 
        * doc/invoke.texi (Debugging Options): Add documentation for the
@@ -248,6 +257,11 @@
        * tree-vrp.c (vrp_int_const_binop): Handle PLUS_EXPR and
        the *_DIV_EXPR codes correctly with overflow infinities.
 
+2007-03-04  Zdenek Dvorak  <dvor...@suse.cz> (r122528)
+
+       * tree-ssa-address.c (create_mem_ref): Do not put an expression
+       containing a cast to the base of TARGET_MEM_REF.
+
 2007-02-09  Dwarakanath Rajagopal <dwarak.rajago...@amd.com> (r121763)
 
        * config/i386/driver-i386.c: Turn on -mtune=native for AMDFAM10.
@@ -424,6 +438,11 @@
        and amdfam10.
        * doc/extend.texi: Add documentation for SSE4A builtins.
 
+2007-02-01  Zdenek Dvorak <dvor...@suse.cz> (r121464)
+
+       * toplev.c (lang_dependent_init): Call init_set_costs.
+       * loop-init.c (loop_optimizer_init): Do not call init_set_costs.
+
 2007-01-24  Jakub Jelinek  <ja...@redhat.com> (r121140)
 
        * config/i386/i386.h (x86_cmpxchg16b): Remove const.

Modified: head/contrib/gcc/cp/ChangeLog
==============================================================================
--- head/contrib/gcc/cp/ChangeLog       Mon Dec 30 02:19:48 2013        
(r260072)
+++ head/contrib/gcc/cp/ChangeLog       Mon Dec 30 02:52:43 2013        
(r260073)
@@ -314,6 +314,12 @@
        PR c++/30895
        * tree.c (cp_tree_equal): Properly handle COMPLEX_CST trees.
 
+2007-03-02  Geoffrey Keating  <geo...@apple.com> (r122488)
+
+       * g++spec.c (lang_specific_driver): Add -lstdc++ when compiling
+       Objective-C++.  Don't exit early if -shared-libgcc needs to be
+       added.
+
 2007-02-22  Simon Martin  <simar...@users.sourceforge.net>
 
        PR c++/29475

Modified: head/contrib/gcc/cp/g++spec.c
==============================================================================
--- head/contrib/gcc/cp/g++spec.c       Mon Dec 30 02:19:48 2013        
(r260072)
+++ head/contrib/gcc/cp/g++spec.c       Mon Dec 30 02:52:43 2013        
(r260073)
@@ -159,11 +159,19 @@ lang_specific_driver (int *in_argc, cons
                arg = "";
              if (library == 0
                  && (strcmp (arg, "c++") == 0
-                     || strcmp (arg, "c++-cpp-output") == 0))
+                     || strcmp (arg, "c++-cpp-output") == 0
+                     || strcmp (arg, "objective-c++") == 0
+                     || strcmp (arg, "objective-c++-cpp-output") == 0))
                library = 1;
                
              saw_speclang = 1;
            }
+         else if (strcmp (argv[i], "-ObjC++") == 0)
+           {
+             if (library == 0)
+               library = 1;
+             saw_speclang = 1;
+           }
          /* Arguments that go directly to the linker might be .o files,
             or something, and so might cause libstdc++ to be needed.  */
          else if (strcmp (argv[i], "-Xlinker") == 0)
@@ -237,13 +245,6 @@ lang_specific_driver (int *in_argc, cons
   if (quote)
     fatal ("argument to '%s' missing\n", quote);
 
-  /* If we know we don't have to do anything, bail now.  */
-  if (! added && library <= 0)
-    {
-      free (args);
-      return;
-    }
-
   /* There's no point adding -shared-libgcc if we don't have a shared
      libgcc.  */
 #ifndef ENABLE_SHARED_LIBGCC

Modified: head/contrib/gcc/libgcc2.c
==============================================================================
--- head/contrib/gcc/libgcc2.c  Mon Dec 30 02:19:48 2013        (r260072)
+++ head/contrib/gcc/libgcc2.c  Mon Dec 30 02:52:43 2013        (r260073)
@@ -1420,11 +1420,7 @@ __floatunditf (UDWtype u)
 #define F_MODE_OK(SIZE) \
   (SIZE < DI_SIZE                                                      \
    && SIZE > (DI_SIZE - SIZE + FSSIZE)                                 \
-   /* Don't use IBM Extended Double TFmode for TI->SF calculations.    \
-      The conversion from long double to float suffers from double     \
-      rounding, because we convert via double.  In any case, the       \
-      fallback code is faster.  */                                     \
-   && !IS_IBM_EXTENDED (SIZE))
+   && !AVOID_FP_TYPE_CONVERSION(SIZE))
 #if defined(L_floatdisf)
 #define FUNC __floatdisf
 #define FSTYPE SFtype
@@ -1515,13 +1511,21 @@ FUNC (DWtype u)
   hi = u >> shift;
 
   /* If we lost any nonzero bits, set the lsb to ensure correct rounding.  */
-  if (u & (((DWtype)1 << shift) - 1))
+  if ((UWtype)u << (W_TYPE_SIZE - shift))
     hi |= 1;
 
   /* Convert the one word of data, and rescale.  */
-  FSTYPE f = hi;
-  f *= (UDWtype)1 << shift;
-  return f;
+  FSTYPE f = hi, e;
+  if (shift == W_TYPE_SIZE)
+    e = Wtype_MAXp1_F;
+  /* The following two cases could be merged if we knew that the target
+     supported a native unsigned->float conversion.  More often, we only
+     have a signed conversion, and have to add extra fixup code.  */
+  else if (shift == W_TYPE_SIZE - 1)
+    e = Wtype_MAXp1_F / 2;
+  else
+    e = (Wtype)1 << shift;
+  return f * e;
 #endif
 }
 #endif
@@ -1532,11 +1536,7 @@ FUNC (DWtype u)
 #define F_MODE_OK(SIZE) \
   (SIZE < DI_SIZE                                                      \
    && SIZE > (DI_SIZE - SIZE + FSSIZE)                                 \
-   /* Don't use IBM Extended Double TFmode for TI->SF calculations.    \
-      The conversion from long double to float suffers from double     \
-      rounding, because we convert via double.  In any case, the       \
-      fallback code is faster.  */                                     \
-   && !IS_IBM_EXTENDED (SIZE))
+   && !AVOID_FP_TYPE_CONVERSION(SIZE))
 #if defined(L_floatundisf)
 #define FUNC __floatundisf
 #define FSTYPE SFtype
@@ -1620,13 +1620,21 @@ FUNC (UDWtype u)
   hi = u >> shift;
 
   /* If we lost any nonzero bits, set the lsb to ensure correct rounding.  */
-  if (u & (((UDWtype)1 << shift) - 1))
+  if ((UWtype)u << (W_TYPE_SIZE - shift))
     hi |= 1;
 
   /* Convert the one word of data, and rescale.  */
-  FSTYPE f = hi;
-  f *= (UDWtype)1 << shift;
-  return f;
+  FSTYPE f = hi, e;
+  if (shift == W_TYPE_SIZE)
+    e = Wtype_MAXp1_F;
+  /* The following two cases could be merged if we knew that the target
+     supported a native unsigned->float conversion.  More often, we only
+     have a signed conversion, and have to add extra fixup code.  */
+  else if (shift == W_TYPE_SIZE - 1)
+    e = Wtype_MAXp1_F / 2;
+  else
+    e = (Wtype)1 << shift;
+  return f * e;
 #endif
 }
 #endif

Modified: head/contrib/gcc/libgcc2.h
==============================================================================
--- head/contrib/gcc/libgcc2.h  Mon Dec 30 02:19:48 2013        (r260072)
+++ head/contrib/gcc/libgcc2.h  Mon Dec 30 02:52:43 2013        (r260073)
@@ -119,10 +119,16 @@ extern short int __get_eh_table_version 
 
 /* FIXME: This #ifdef probably should be removed, ie. enable the test
    for mips too.  */
+/* Don't use IBM Extended Double TFmode for TI->SF calculations.
+   The conversion from long double to float suffers from double
+   rounding, because we convert via double.  In other cases, going
+   through the software fp routines is much slower than the fallback.  */
 #ifdef __powerpc__
-#define IS_IBM_EXTENDED(SIZE) (SIZE == 106)
+#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE == 106)
+#elif defined(WIDEST_HARDWARE_FP_SIZE)
+#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE > WIDEST_HARDWARE_FP_SIZE)
 #else
-#define IS_IBM_EXTENDED(SIZE) 0
+#define AVOID_FP_TYPE_CONVERSION(SIZE) 0
 #endif
 
 /* In the first part of this file, we are interfacing to calls generated

Modified: head/contrib/gcc/loop-init.c
==============================================================================
--- head/contrib/gcc/loop-init.c        Mon Dec 30 02:19:48 2013        
(r260072)
+++ head/contrib/gcc/loop-init.c        Mon Dec 30 02:52:43 2013        
(r260073)
@@ -43,13 +43,6 @@ loop_optimizer_init (unsigned flags)
   struct loops *loops = XCNEW (struct loops);
   edge e;
   edge_iterator ei;
-  static bool first_time = true;
-
-  if (first_time)
-    {
-      first_time = false;
-      init_set_costs ();
-    }
 
   /* Avoid annoying special cases of edges going to exit
      block.  */

Modified: head/contrib/gcc/toplev.c
==============================================================================
--- head/contrib/gcc/toplev.c   Mon Dec 30 02:19:48 2013        (r260072)
+++ head/contrib/gcc/toplev.c   Mon Dec 30 02:52:43 2013        (r260073)
@@ -1948,6 +1948,11 @@ lang_dependent_init (const char *name)
      provide a dummy function context for them.  */
   init_dummy_function_start ();
   init_expr_once ();
+
+  /* Although the actions of init_set_costs are language-independent,
+     it uses optabs, so we cannot call it from backend_init.  */
+  init_set_costs ();
+
   expand_dummy_function_end ();
 
   /* If dbx symbol table desired, initialize writing it and output the

Modified: head/contrib/gcc/tree-ssa-address.c
==============================================================================
--- head/contrib/gcc/tree-ssa-address.c Mon Dec 30 02:19:48 2013        
(r260072)
+++ head/contrib/gcc/tree-ssa-address.c Mon Dec 30 02:52:43 2013        
(r260073)
@@ -569,7 +569,7 @@ create_mem_ref (block_stmt_iterator *bsi
                struct affine_tree_combination *addr)
 {
   tree mem_ref, tmp;
-  tree addr_type = build_pointer_type (type), atype;
+  tree atype;
   struct mem_address parts;
 
   addr_to_parts (addr, &parts);
@@ -597,18 +597,23 @@ create_mem_ref (block_stmt_iterator *bsi
 
   if (parts.symbol)
     {
-      tmp = fold_convert (addr_type,
-                         build_addr (parts.symbol, current_function_decl));
+      tmp = build_addr (parts.symbol, current_function_decl);
+      gcc_assert (is_gimple_val (tmp));
     
       /* Add the symbol to base, eventually forcing it to register.  */
       if (parts.base)
        {
+         gcc_assert (TREE_TYPE (parts.base) == sizetype);
+
          if (parts.index)
-           parts.base = force_gimple_operand_bsi (bsi,
-                       fold_build2 (PLUS_EXPR, addr_type,
-                                    fold_convert (addr_type, parts.base),
+           {
+             atype = TREE_TYPE (tmp);
+             parts.base = force_gimple_operand_bsi (bsi,
+                       fold_build2 (PLUS_EXPR, atype,
+                                    fold_convert (atype, parts.base),
                                     tmp),
                        true, NULL_TREE);
+           }
          else
            {
              parts.index = parts.base;
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