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| author | Richard Henderson <rth@cygnus.com> | 2000-06-05 19:40:14 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-06-05 19:40:14 -0700 |
| commit | c9d8a8136198b464ef8de88f9ea5d8364d848e8b (patch) | |
| tree | 1e11df212e7a9e31a1b29f36b3c6912ef4daccd4 /gcc/reload1.c | |
| parent | 2aceb30d9029b71a65670c044a9ef43a501786fa (diff) | |
| download | gcc-c9d8a8136198b464ef8de88f9ea5d8364d848e8b.zip gcc-c9d8a8136198b464ef8de88f9ea5d8364d848e8b.tar.gz gcc-c9d8a8136198b464ef8de88f9ea5d8364d848e8b.tar.bz2 | |
reload1.c (choose_reload_regs): Mind CLASS_CANNOT_CHANGE_SIZE while looking for a register to inherit from.
* reload1.c (choose_reload_regs): Mind CLASS_CANNOT_CHANGE_SIZE
while looking for a register to inherit from.
From-SVN: r34420
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 12 |
1 files changed, 11 insertions, 1 deletions
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) |