diff options
Diffstat (limited to 'gcc/expr.h')
| -rw-r--r-- | gcc/expr.h | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/gcc/expr.h b/gcc/expr.h index f63b8f3052d..154648e7bff 100644 --- a/gcc/expr.h +++ b/gcc/expr.h @@ -557,11 +557,22 @@ extern rtx change_address (rtx, enum machine_mode, rtx); /* Return a memory reference like MEMREF, but with its mode changed to MODE and its address offset by OFFSET bytes. */ #define adjust_address(MEMREF, MODE, OFFSET) \ - adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1) + adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1, 0) /* Likewise, but the reference is not required to be valid. */ #define adjust_address_nv(MEMREF, MODE, OFFSET) \ - adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1) + adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1, 0) + +/* Return a memory reference like MEMREF, but with its mode changed + to MODE and its address offset by OFFSET bytes. Assume that it's + for a bitfield and conservatively drop the underlying object if we + cannot be sure to stay within its bounds. */ +#define adjust_bitfield_address(MEMREF, MODE, OFFSET) \ + adjust_address_1 (MEMREF, MODE, OFFSET, 1, 1, 1) + +/* Likewise, but the reference is not required to be valid. */ +#define adjust_bitfield_address_nv(MEMREF, MODE, OFFSET) \ + adjust_address_1 (MEMREF, MODE, OFFSET, 0, 1, 1) /* Return a memory reference like MEMREF, but with its mode changed to MODE and its address changed to ADDR, which is assumed to be @@ -573,7 +584,8 @@ extern rtx change_address (rtx, enum machine_mode, rtx); #define adjust_automodify_address_nv(MEMREF, MODE, ADDR, OFFSET) \ adjust_automodify_address_1 (MEMREF, MODE, ADDR, OFFSET, 0) -extern rtx adjust_address_1 (rtx, enum machine_mode, HOST_WIDE_INT, int, int); +extern rtx adjust_address_1 (rtx, enum machine_mode, HOST_WIDE_INT, int, int, + int); extern rtx adjust_automodify_address_1 (rtx, enum machine_mode, rtx, HOST_WIDE_INT, int); |