[AArch64][1/2] Rename SYMBOL_SMALL_GOT to SYMBOL_SMALL_GOT_4G

2015-06-26  Jiong Wang  <jiong.wang@arm.com>

	* config/aarch64/aarch64-protos.h (aarch64_symbol_type): Rename
	SYMBOL_SMALL_GOT to SYMBOL_SMALL_GOT_4G.
	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately): Ditto.
	(aarch64_expand_mov_immediate): Ditto.
	(aarch64_print_operand): Ditto.
	(aarch64_classify_symbol): Ditto.

From-SVN: r225013

gcc/ChangeLog

+2015-06-26  Jiong Wang  <jiong.wang@arm.com>
+
+	* config/aarch64/aarch64-protos.h (aarch64_symbol_type): Rename
+	SYMBOL_SMALL_GOT to SYMBOL_SMALL_GOT_4G.
+	* config/aarch64/aarch64.c (aarch64_load_symref_appropriately): Ditto.
+	(aarch64_expand_mov_immediate): Ditto.
+	(aarch64_print_operand): Ditto.
+	(aarch64_classify_symbol): Ditto.
+
 2015-06-26  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* config/nvptx/nvptx.md (call_operation): Remove unused variables.

gcc/config/aarch64/aarch64-protos.h

@@ -49,12 +49,13 @@ enum aarch64_symbol_context
 
    This corresponds to the small code model of the compiler.
 
-   SYMBOL_SMALL_GOT: Similar to the one above but this
+   SYMBOL_SMALL_GOT_4G: Similar to the one above but this
    gives us the GOT entry of the symbol being referred to :
    Thus calculating the GOT entry for foo is done using the
    following sequence of instructions.  The ADRP instruction
    gets us to the page containing the GOT entry of the symbol
-   and the got_lo12 gets us the actual offset in it.
+   and the got_lo12 gets us the actual offset in it, together
+   the base and offset, we can address 4G size GOT table.
 
    adrp  x0, :got:foo
    ldr   x0, [x0, :gotoff_lo12:foo]
@@ -94,7 +95,7 @@ enum aarch64_symbol_context
 enum aarch64_symbol_type
 {
   SYMBOL_SMALL_ABSOLUTE,
-  SYMBOL_SMALL_GOT,
+  SYMBOL_SMALL_GOT_4G,
   SYMBOL_SMALL_TLSGD,
   SYMBOL_SMALL_TLSDESC,
   SYMBOL_SMALL_GOTTPREL,

gcc/config/aarch64/aarch64.c

@@ -826,7 +826,7 @@ aarch64_load_symref_appropriately (rtx dest, rtx imm,
       emit_insn (gen_rtx_SET (dest, imm));
       return;
 
-    case SYMBOL_SMALL_GOT:
+    case SYMBOL_SMALL_GOT_4G:
       {
 	/* In ILP32, the mode of dest can be either SImode or DImode,
 	   while the got entry is always of SImode size.  The mode of
@@ -1478,7 +1478,7 @@ aarch64_expand_mov_immediate (rtx dest, rtx imm)
         case SYMBOL_SMALL_TLSGD:
         case SYMBOL_SMALL_TLSDESC:
         case SYMBOL_SMALL_GOTTPREL:
-	case SYMBOL_SMALL_GOT:
+	case SYMBOL_SMALL_GOT_4G:
 	case SYMBOL_TINY_GOT:
 	  if (offset != const0_rtx)
 	    {
@@ -4359,7 +4359,7 @@ aarch64_print_operand (FILE *f, rtx x, char code)
 
       switch (aarch64_classify_symbolic_expression (x, SYMBOL_CONTEXT_ADR))
 	{
-	case SYMBOL_SMALL_GOT:
+	case SYMBOL_SMALL_GOT_4G:
 	  asm_fprintf (asm_out_file, ":got:");
 	  break;
 
@@ -4392,7 +4392,7 @@ aarch64_print_operand (FILE *f, rtx x, char code)
     case 'L':
       switch (aarch64_classify_symbolic_expression (x, SYMBOL_CONTEXT_ADR))
 	{
-	case SYMBOL_SMALL_GOT:
+	case SYMBOL_SMALL_GOT_4G:
 	  asm_fprintf (asm_out_file, ":lo12:");
 	  break;
 
@@ -7403,7 +7403,7 @@ aarch64_classify_symbol (rtx x, rtx offset,
 
 	case AARCH64_CMODEL_SMALL_PIC:
 	  if (!aarch64_symbol_binds_local_p (x))
-	    return SYMBOL_SMALL_GOT;
+	    return SYMBOL_SMALL_GOT_4G;
 	  return SYMBOL_SMALL_ABSOLUTE;
 
 	default: