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| author | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-08 16:32:28 -0400 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1994-08-08 16:32:28 -0400 |
| commit | 580d3230435c471a2f45d7d7e0789b6373f167c2 (patch) | |
| tree | 0c67e25a4efe6d2c99636347f4337842779eee2c | |
| parent | 899d4140a30fe68457a1e978249e6fc882276577 (diff) | |
| download | gcc-580d3230435c471a2f45d7d7e0789b6373f167c2.zip gcc-580d3230435c471a2f45d7d7e0789b6373f167c2.tar.gz gcc-580d3230435c471a2f45d7d7e0789b6373f167c2.tar.bz2 | |
(CLASS_CANNOT_CHANGE_SIZE): New macro.
From-SVN: r7872
| -rw-r--r-- | gcc/config/rs6000/rs6000.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h index ad550a7..c7cd68a 100644 --- a/gcc/config/rs6000/rs6000.h +++ b/gcc/config/rs6000/rs6000.h @@ -715,6 +715,11 @@ enum reg_class { NO_REGS, BASE_REGS, GENERAL_REGS, FLOAT_REGS, ((CLASS) == FLOAT_REGS \ ? ((GET_MODE_SIZE (MODE) + 2 * UNITS_PER_WORD - 1) / (2 * UNITS_PER_WORD)) \ : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)) + +/* If defined, gives a class of registers that cannot be used as the + operand of a SUBREG that changes the size of the object. */ + +#define CLASS_CANNOT_CHANGE_SIZE FLOAT_REGS /* Stack layout; function entry, exit and calling. */ |