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alias.c (find_base_value, [...]): Handle #ifdef POINTERS_EXTEND_UNSIGNED. 

* alias.c (find_base_value, case ZERO_EXTEND, case SIGN_EXTEND):
	Handle #ifdef POINTERS_EXTEND_UNSIGNED.

From-SVN: r49706
This commit is contained in:
Richard Kenner 2002-02-12 15:18:42 +00:00 committed by Richard Kenner
parent aa3aae06f9
commit 0aacc8ed7b
2 changed files with 19 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Tue Feb 12 10:12:56 2002 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* alias.c (find_base_value, case ZERO_EXTEND, case SIGN_EXTEND):
Handle #ifdef POINTERS_EXTEND_UNSIGNED.
2002-02-11 Hans-Peter Nilsson <hp@bitrange.com>
* config/mmix/mmix.c (mmix_assemble_integer) <case 1, 2>: Handle

16
gcc/alias.c
View File

@ -728,6 +728,7 @@ find_base_value (src)
rtx src;
{
unsigned int regno;
switch (GET_CODE (src))
{
case SYMBOL_REF:
@ -846,8 +847,6 @@ find_base_value (src)
if (GET_MODE_SIZE (GET_MODE (src)) < GET_MODE_SIZE (Pmode))
break;
/* Fall through. */
case ZERO_EXTEND:
case SIGN_EXTEND: /* used for NT/Alpha pointers */
case HIGH:
case PRE_INC:
case PRE_DEC:
@ -857,6 +856,19 @@ find_base_value (src)
case POST_MODIFY:
return find_base_value (XEXP (src, 0));
case ZERO_EXTEND:
case SIGN_EXTEND: /* used for NT/Alpha pointers */
{
rtx temp = find_base_value (XEXP (src, 0));
#ifdef POINTERS_EXTEND_UNSIGNED
if (temp != 0 && CONSTANT_P (temp) && GET_MODE (temp) != Pmode)
temp = convert_memory_address (Pmode, temp);
#endif
return temp;
}
default:
break;
}