* config/rs6000/rs6000.c (rs6000_option_override_internal):

[pf3gnuchains/gcc-fork.git] / gcc / config / rs6000 / rs6000.c

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 6434be5..751ce2c 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -939,7 +939,7 @@ static bool legitimate_lo_sum_address_p (enum machine_mode, rtx, int);
 static struct machine_function * rs6000_init_machine_status (void);
 static bool rs6000_assemble_integer (rtx, unsigned int, int);
 static bool no_global_regs_above (int, bool);
-#if defined (HAVE_GAS_HIDDEN) && !defined (TARGET_MACHO)
+#if defined (HAVE_GAS_HIDDEN) && !TARGET_MACHO
 static void rs6000_assemble_visibility (tree, int);
 #endif
 static int rs6000_ra_ever_killed (void);
@@ -1106,6 +1106,7 @@ static rtx rs6000_debug_legitimize_address (rtx, rtx, enum machine_mode);
 static rtx rs6000_legitimize_tls_address (rtx, enum tls_model);
 static void rs6000_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
 static rtx rs6000_delegitimize_address (rtx);
+static bool rs6000_const_not_ok_for_debug_p (rtx);
 static rtx rs6000_tls_get_addr (void);
 static rtx rs6000_got_sym (void);
 static int rs6000_tls_symbol_ref_1 (rtx *, void *);
@@ -1388,7 +1389,7 @@ static const struct attribute_spec rs6000_attribute_table[] =
 #undef TARGET_ASM_INTEGER
 #define TARGET_ASM_INTEGER rs6000_assemble_integer
 
-#if defined (HAVE_GAS_HIDDEN) && !defined (TARGET_MACHO)
+#if defined (HAVE_GAS_HIDDEN) && !TARGET_MACHO
 #undef TARGET_ASM_ASSEMBLE_VISIBILITY
 #define TARGET_ASM_ASSEMBLE_VISIBILITY rs6000_assemble_visibility
 #endif
@@ -1405,6 +1406,9 @@ static const struct attribute_spec rs6000_attribute_table[] =
 #undef TARGET_DELEGITIMIZE_ADDRESS
 #define TARGET_DELEGITIMIZE_ADDRESS rs6000_delegitimize_address
 
+#undef TARGET_CONST_NOT_OK_FOR_DEBUG_P
+#define TARGET_CONST_NOT_OK_FOR_DEBUG_P rs6000_const_not_ok_for_debug_p
+
 #undef TARGET_ASM_FUNCTION_PROLOGUE
 #define TARGET_ASM_FUNCTION_PROLOGUE rs6000_output_function_prologue
 #undef TARGET_ASM_FUNCTION_EPILOGUE
@@ -1580,7 +1584,7 @@ static const struct attribute_spec rs6000_attribute_table[] =
 #define TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION \
   rs6000_builtin_vectorized_function
 
-#ifndef TARGET_MACHO
+#if !TARGET_MACHO
 #undef TARGET_STACK_PROTECT_FAIL
 #define TARGET_STACK_PROTECT_FAIL rs6000_stack_protect_fail
 #endif
@@ -2960,7 +2964,8 @@ rs6000_option_override_internal (bool global_init_p)
                        && rs6000_cpu != PROCESSOR_POWER6
                        && rs6000_cpu != PROCESSOR_POWER7
                        && rs6000_cpu != PROCESSOR_PPCA2
-                       && rs6000_cpu != PROCESSOR_CELL);
+                       && rs6000_cpu != PROCESSOR_CELL
+                       && rs6000_cpu != PROCESSOR_PPC476);
   rs6000_sched_groups = (rs6000_cpu == PROCESSOR_POWER4
                         || rs6000_cpu == PROCESSOR_POWER5
                         || rs6000_cpu == PROCESSOR_POWER7);
@@ -5815,6 +5820,25 @@ rs6000_delegitimize_address (rtx orig_x)
   return orig_x;
 }
 
+/* Return true if X shouldn't be emitted into the debug info.
+   The linker doesn't like .toc section references from
+   .debug_* sections, so reject .toc section symbols.  */
+
+static bool
+rs6000_const_not_ok_for_debug_p (rtx x)
+{
+  if (GET_CODE (x) == SYMBOL_REF
+      && CONSTANT_POOL_ADDRESS_P (x))
+    {
+      rtx c = get_pool_constant (x);
+      enum machine_mode cmode = get_pool_mode (x);
+      if (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P (c, cmode))
+       return true;
+    }
+
+  return false;
+}
+
 /* Construct the SYMBOL_REF for the tls_get_addr function.  */
 
 static GTY(()) rtx rs6000_tls_symbol;
@@ -15519,7 +15543,7 @@ rs6000_assemble_integer (rtx x, unsigned int size, int aligned_p)
   return default_assemble_integer (x, size, aligned_p);
 }
 
-#if defined (HAVE_GAS_HIDDEN) && !defined (TARGET_MACHO)
+#if defined (HAVE_GAS_HIDDEN) && !TARGET_MACHO
 /* Emit an assembler directive to set symbol visibility for DECL to
    VISIBILITY_TYPE.  */