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buildroot/buildroot-2016.08.1/package/gcc/4.7.4/843-gcc-4.7.3-Fix-PR-target-58595.patch 2.95 KB
6b13f685e   김민수   BSP 최초 추가
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  commit 4fa1f8926227d4e79975b674dc4292b9bec4b137
  Author: jakub <jakub@138bc75d-0d04-0410-961f-82ee72b054a4>
  Date:   Thu Mar 6 12:07:07 2014 +0000
  
      	PR target/58595
      	* config/arm/arm.c (arm_tls_symbol_p): Remove.
      	(arm_legitimize_address): Call legitimize_tls_address for any
      	arm_tls_referenced_p expression, handle constant addend.  Call it
      	before testing for !TARGET_ARM.
      	(thumb_legitimize_address): Don't handle arm_tls_symbol_p here.
      
      	* gcc.dg/tls/pr58595.c: New test.
      
      
      git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@208380 138bc75d-0d04-0410-961f-82ee72b054a4
  
  diff --git a/gcc/config/arm/arm.c b/gcc/config/arm/arm.c
  index ce24bfe..af5666b 100644
  --- a/gcc/config/arm/arm.c
  +++ b/gcc/config/arm/arm.c
  @@ -235,7 +235,6 @@ static tree arm_gimplify_va_arg_expr (tree, tree, gimple_seq *, gimple_seq *);
   static void arm_option_override (void);
   static unsigned HOST_WIDE_INT arm_shift_truncation_mask (enum machine_mode);
   static bool arm_cannot_copy_insn_p (rtx);
  -static bool arm_tls_symbol_p (rtx x);
   static int arm_issue_rate (void);
   static void arm_output_dwarf_dtprel (FILE *, int, rtx) ATTRIBUTE_UNUSED;
   static bool arm_output_addr_const_extra (FILE *, rtx);
  @@ -7336,6 +7335,32 @@ legitimize_tls_address (rtx x, rtx reg)
   rtx
   arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
   {
  +  if (arm_tls_referenced_p (x))
  +    {
  +      rtx addend = NULL;
  +
  +      if (GET_CODE (x) == CONST && GET_CODE (XEXP (x, 0)) == PLUS)
  +	{
  +	  addend = XEXP (XEXP (x, 0), 1);
  +	  x = XEXP (XEXP (x, 0), 0);
  +	}
  +
  +      if (GET_CODE (x) != SYMBOL_REF)
  +	return x;
  +
  +      gcc_assert (SYMBOL_REF_TLS_MODEL (x) != 0);
  +
  +      x = legitimize_tls_address (x, NULL_RTX);
  +
  +      if (addend)
  +	{
  +	  x = gen_rtx_PLUS (SImode, x, addend);
  +	  orig_x = x;
  +	}
  +      else
  +	return x;
  +    }
  +
     if (!TARGET_ARM)
       {
         /* TODO: legitimize_address for Thumb2.  */
  @@ -7344,9 +7369,6 @@ arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
         return thumb_legitimize_address (x, orig_x, mode);
       }
   
  -  if (arm_tls_symbol_p (x))
  -    return legitimize_tls_address (x, NULL_RTX);
  -
     if (GET_CODE (x) == PLUS)
       {
         rtx xop0 = XEXP (x, 0);
  @@ -7459,9 +7481,6 @@ arm_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
   rtx
   thumb_legitimize_address (rtx x, rtx orig_x, enum machine_mode mode)
   {
  -  if (arm_tls_symbol_p (x))
  -    return legitimize_tls_address (x, NULL_RTX);
  -
     if (GET_CODE (x) == PLUS
         && CONST_INT_P (XEXP (x, 1))
         && (INTVAL (XEXP (x, 1)) >= 32 * GET_MODE_SIZE (mode)
  @@ -7756,20 +7775,6 @@ thumb_legitimize_reload_address (rtx *x_p,
   
   /* Test for various thread-local symbols.  */
   
  -/* Return TRUE if X is a thread-local symbol.  */
  -
  -static bool
  -arm_tls_symbol_p (rtx x)
  -{
  -  if (! TARGET_HAVE_TLS)
  -    return false;
  -
  -  if (GET_CODE (x) != SYMBOL_REF)
  -    return false;
  -
  -  return SYMBOL_REF_TLS_MODEL (x) != 0;
  -}
  -
   /* Helper for arm_tls_referenced_p.  */
   
   static int