diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/reload1.c | 12 |
2 files changed, 16 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c74aaf9..c0040dd 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-06-05 Richard Henderson <rth@cygnus.com> + + * reload1.c (choose_reload_regs): Mind CLASS_CANNOT_CHANGE_SIZE + while looking for a register to inherit from. + 2000-06-05 Jason Merrill <jason@casey.soma.redhat.com> * Makefile.in (libgcc.ready): Lose. diff --git a/gcc/reload1.c b/gcc/reload1.c index 3378a68..6f73aea 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -5308,8 +5308,18 @@ choose_reload_regs (chain) i = REGNO (last_reg) + word; last_class = REGNO_REG_CLASS (i); - if ((GET_MODE_SIZE (GET_MODE (last_reg)) + if ( +#ifdef CLASS_CANNOT_CHANGE_SIZE + (TEST_HARD_REG_BIT + (reg_class_contents[CLASS_CANNOT_CHANGE_SIZE], i) + ? (GET_MODE_SIZE (GET_MODE (last_reg)) + == GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) + : (GET_MODE_SIZE (GET_MODE (last_reg)) + >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD)) +#else + (GET_MODE_SIZE (GET_MODE (last_reg)) >= GET_MODE_SIZE (mode) + word * UNITS_PER_WORD) +#endif && reg_reloaded_contents[i] == regno && TEST_HARD_REG_BIT (reg_reloaded_valid, i) && HARD_REGNO_MODE_OK (i, rld[r].mode) |