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| author | Jeff Law <law@gcc.gnu.org> | 1995-12-31 19:32:57 -0700 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1995-12-31 19:32:57 -0700 |
| commit | 6cad67d2d0789487217a2091c2f14d48f9e1ad6b (patch) | |
| tree | 6954fbd4d8694312315db4ec5b21e6a62873aec7 /gcc/global.c | |
| parent | 6e81958a66749a62fdd4f50de26e52a10fa559da (diff) | |
| download | gcc-6cad67d2d0789487217a2091c2f14d48f9e1ad6b.tar.gz | |
hard-reg-set.h (losing_caller_save_reg_set): Declare.
* hard-reg-set.h (losing_caller_save_reg_set): Declare.
* regclass.c (losing_caller_save_reg_set): Define.
(init_reg_sets_1): Initialize losing_caller_save_reg_set.
* global.c (find_reg): Avoid caller-saving registers in
LOSING_CALLER_SAVE_REGS if it's defined.
* local-alloc.c (find_free_reg): Avoid caller-saving registers
in losing_caller_save_reg_set.
(CLASS_LIKELY_SPILLED_P): Delete definition. Moved into regs.h.
* regs.h (CLASS_LIKELY_SPILLED_P): Define if not already defined.
From-SVN: r10926
Diffstat (limited to 'gcc/global.c')
| -rw-r--r-- | gcc/global.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/global.c b/gcc/global.c index e9941e6d30f..78da99b99a8 100644 --- a/gcc/global.c +++ b/gcc/global.c @@ -1085,7 +1085,14 @@ find_reg (allocno, losers, alt_regs_p, accept_call_clobbered, retrying) && CALLER_SAVE_PROFITABLE (allocno_n_refs[allocno], allocno_calls_crossed[allocno])) { - find_reg (allocno, losers, alt_regs_p, 1, retrying); + HARD_REG_SET new_losers; + if (! losers) + CLEAR_HARD_REG_SET (new_losers); + else + COPY_HARD_REG_SET (new_losers, losers); + + IOR_HARD_REG_SET(new_losers, losing_caller_save_reg_set); + find_reg (allocno, new_losers, alt_regs_p, 1, retrying); if (reg_renumber[allocno_reg[allocno]] >= 0) { caller_save_needed = 1; |