* config.gcc (xtensa-*-linux*): Add t-slibgcc-elf-ver to tmake_file.

[pf3gnuchains/gcc-fork.git] / gcc / config / i386 / i386.c

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index e18b1fb..53df089 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -689,18 +689,6 @@ struct stack_local_entry GTY(())
   struct stack_local_entry *next;
 };
 
-
-struct machine_function GTY(())
-{
-  struct stack_local_entry *stack_locals;
-  const char *some_ld_name;
-  int save_varrargs_registers;
-  int accesses_prev_frame;
-};
-
-#define ix86_stack_locals (cfun->machine->stack_locals)
-#define ix86_save_varrargs_registers (cfun->machine->save_varrargs_registers)
-
 /* Structure describing stack frame layout.
    Stack grows downward:
 
@@ -754,12 +742,12 @@ enum tls_dialect ix86_tls_dialect = TLS_DIALECT_GNU;
 enum fpmath_unit ix86_fpmath;
 
 /* Which cpu are we scheduling for.  */
-enum processor_type ix86_cpu;
+enum processor_type ix86_tune;
 /* Which instruction set architecture to use.  */
 enum processor_type ix86_arch;
 
 /* Strings to hold which cpu and instruction set architecture  to use.  */
-const char *ix86_cpu_string;           /* for -mcpu=<xxx> */
+const char *ix86_tune_string;          /* for -mtune=<xxx> */
 const char *ix86_arch_string;          /* for -march=<xxx> */
 const char *ix86_fpmath_string;                /* for -mfpmath=<xxx> */
 
@@ -1148,10 +1136,10 @@ override_options ()
   SUBTARGET_OVERRIDE_OPTIONS;
 #endif
 
-  if (!ix86_cpu_string && ix86_arch_string)
-    ix86_cpu_string = ix86_arch_string;
-  if (!ix86_cpu_string)
-    ix86_cpu_string = cpu_names [TARGET_CPU_DEFAULT];
+  if (!ix86_tune_string && ix86_arch_string)
+    ix86_tune_string = ix86_arch_string;
+  if (!ix86_tune_string)
+    ix86_tune_string = cpu_names [TARGET_CPU_DEFAULT];
   if (!ix86_arch_string)
     ix86_arch_string = TARGET_64BIT ? "k8" : "i386";
 
@@ -1201,7 +1189,7 @@ override_options ()
       {
        ix86_arch = processor_alias_table[i].processor;
        /* Default cpu tuning to the architecture.  */
-       ix86_cpu = ix86_arch;
+       ix86_tune = ix86_arch;
        if (processor_alias_table[i].flags & PTA_MMX
            && !(target_flags_explicit & MASK_MMX))
          target_flags |= MASK_MMX;
@@ -1228,9 +1216,9 @@ override_options ()
     error ("bad value (%s) for -march= switch", ix86_arch_string);
 
   for (i = 0; i < pta_size; i++)
-    if (! strcmp (ix86_cpu_string, processor_alias_table[i].name))
+    if (! strcmp (ix86_tune_string, processor_alias_table[i].name))
       {
-       ix86_cpu = processor_alias_table[i].processor;
+       ix86_tune = processor_alias_table[i].processor;
        if (TARGET_64BIT && !(processor_alias_table[i].flags & PTA_64BIT))
          error ("CPU you selected does not support x86-64 instruction set");
        break;
@@ -1238,14 +1226,14 @@ override_options ()
   if (processor_alias_table[i].flags & PTA_PREFETCH_SSE)
     x86_prefetch_sse = true;
   if (i == pta_size)
-    error ("bad value (%s) for -mcpu= switch", ix86_cpu_string);
+    error ("bad value (%s) for -mtune= switch", ix86_tune_string);
 
   if (optimize_size)
     ix86_cost = &size_cost;
   else
-    ix86_cost = processor_target_table[ix86_cpu].cost;
-  target_flags |= processor_target_table[ix86_cpu].target_enable;
-  target_flags &= ~processor_target_table[ix86_cpu].target_disable;
+    ix86_cost = processor_target_table[ix86_tune].cost;
+  target_flags |= processor_target_table[ix86_tune].target_enable;
+  target_flags &= ~processor_target_table[ix86_tune].target_disable;
 
   /* Arrange to set up i386_stack_locals for all functions.  */
   init_machine_status = ix86_init_machine_status;
@@ -1308,17 +1296,17 @@ override_options ()
   /* Default align_* from the processor table.  */
   if (align_loops == 0)
     {
-      align_loops = processor_target_table[ix86_cpu].align_loop;
-      align_loops_max_skip = processor_target_table[ix86_cpu].align_loop_max_skip;
+      align_loops = processor_target_table[ix86_tune].align_loop;
+      align_loops_max_skip = processor_target_table[ix86_tune].align_loop_max_skip;
     }
   if (align_jumps == 0)
     {
-      align_jumps = processor_target_table[ix86_cpu].align_jump;
-      align_jumps_max_skip = processor_target_table[ix86_cpu].align_jump_max_skip;
+      align_jumps = processor_target_table[ix86_tune].align_jump;
+      align_jumps_max_skip = processor_target_table[ix86_tune].align_jump_max_skip;
     }
   if (align_functions == 0)
     {
-      align_functions = processor_target_table[ix86_cpu].align_func;
+      align_functions = processor_target_table[ix86_tune].align_func;
     }
 
   /* Validate -mpreferred-stack-boundary= value, or provide default.
@@ -1339,7 +1327,7 @@ override_options ()
     }
 
   /* Validate -mbranch-cost= value, or provide default.  */
-  ix86_branch_cost = processor_target_table[ix86_cpu].cost->branch_cost;
+  ix86_branch_cost = processor_target_table[ix86_tune].cost->branch_cost;
   if (ix86_branch_cost_string)
     {
       i = atoi (ix86_branch_cost_string);
@@ -1438,7 +1426,7 @@ override_options ()
       if (x86_3dnow_a & (1 << ix86_arch))
        target_flags |= MASK_3DNOW_A;
     }
-  if ((x86_accumulate_outgoing_args & CPUMASK)
+  if ((x86_accumulate_outgoing_args & TUNEMASK)
       && !(target_flags_explicit & MASK_ACCUMULATE_OUTGOING_ARGS)
       && !optimize_size)
     target_flags |= MASK_ACCUMULATE_OUTGOING_ARGS;
@@ -2480,6 +2468,9 @@ function_arg (cum, mode, type, named)
        break;
 
       case BLKmode:
+       if (bytes < 0)
+         break;
+       /* FALLTHRU */
       case DImode:
       case SImode:
       case HImode:
@@ -4004,7 +3995,7 @@ promotable_binary_operator (op, mode)
     case MULT:
       /* Modern CPUs have same latency for HImode and SImode multiply,
          but 386 and 486 do HImode multiply faster.  */
-      return ix86_cpu > PROCESSOR_I486;
+      return ix86_tune > PROCESSOR_I486;
     case PLUS:
     case AND:
     case IOR:
@@ -4264,7 +4255,7 @@ standard_80387_constant_p (x)
   /* For XFmode constants, try to find a special 80387 instruction on
      those CPUs that benefit from them.  */
   if (GET_MODE (x) == XFmode
-      && x86_ext_80387_constants & CPUMASK)
+      && x86_ext_80387_constants & TUNEMASK)
     {
       REAL_VALUE_TYPE r;
       int i;
@@ -5468,7 +5459,7 @@ ix86_decompose_address (addr, out)
 
   /* Special case: on K6, [%esi] makes the instruction vector decoded.
      Avoid this by transforming to [%esi+0].  */
-  if (ix86_cpu == PROCESSOR_K6 && !optimize_size
+  if (ix86_tune == PROCESSOR_K6 && !optimize_size
       && base && !index && !disp
       && REG_P (base)
       && REGNO_REG_CLASS (REGNO (base)) == SIREG)
@@ -11910,7 +11901,7 @@ ix86_attr_length_address_default (insn)
 static int
 ix86_issue_rate ()
 {
-  switch (ix86_cpu)
+  switch (ix86_tune)
     {
     case PROCESSOR_PENTIUM:
     case PROCESSOR_K6:
@@ -12037,7 +12028,7 @@ ix86_adjust_cost (insn, link, dep_insn, cost)
   insn_type = get_attr_type (insn);
   dep_insn_type = get_attr_type (dep_insn);
 
-  switch (ix86_cpu)
+  switch (ix86_tune)
     {
     case PROCESSOR_PENTIUM:
       /* Address Generation Interlock adds a cycle of latency.  */
@@ -12328,7 +12319,7 @@ ix86_sched_reorder (dump, sched_verbose, ready, n_readyp, clock_var)
       goto out;
     }
 
-  switch (ix86_cpu)
+  switch (ix86_tune)
     {
     default:
       break;
@@ -12353,7 +12344,7 @@ ix86_variable_issue (dump, sched_verbose, insn, can_issue_more)
      int can_issue_more;
 {
   int i;
-  switch (ix86_cpu)
+  switch (ix86_tune)
     {
     default:
       return can_issue_more - 1;
@@ -12420,7 +12411,7 @@ ia32_use_dfa_pipeline_interface ()
 static int
 ia32_multipass_dfa_lookahead ()
 {
-  if (ix86_cpu == PROCESSOR_PENTIUM)
+  if (ix86_tune == PROCESSOR_PENTIUM)
     return 2;
   else
    return 0;