diff options
| author | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2002-02-12 15:18:42 +0000 |
|---|---|---|
| committer | Richard Kenner <kenner@vlsi1.ultra.nyu.edu> | 2002-02-12 15:18:42 +0000 |
| commit | 890d8f7f636bea72168d9dd53842c594426e8441 (patch) | |
| tree | 4b5772fc52aec53078cc0fa032a5b63ccbeacc2d | |
| parent | c693951314fbebe2e8ea22b9cf8e59188d159145 (diff) | |
* alias.c (find_base_value, case ZERO_EXTEND, case SIGN_EXTEND):
Handle #ifdef POINTERS_EXTEND_UNSIGNED.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@49706 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/alias.c | 16 |
2 files changed, 19 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 524c6d09495..5ef7e507b95 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -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 diff --git a/gcc/alias.c b/gcc/alias.c index 95b16ca1ae7..ca533ee4d82 100644 --- a/gcc/alias.c +++ b/gcc/alias.c @@ -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; } |