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| author | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-01-01 02:32:57 +0000 |
|---|---|---|
| committer | law <law@138bc75d-0d04-0410-961f-82ee72b054a4> | 1996-01-01 02:32:57 +0000 |
| commit | 2836f00621a6b05ba7f9ed67a531a56cc73b3682 (patch) | |
| tree | 6954fbd4d8694312315db4ec5b21e6a62873aec7 /gcc/global.c | |
| parent | 45ca31d6f4658b3f17900c84982602ec3baaeab1 (diff) | |
| download | gcc-2836f00621a6b05ba7f9ed67a531a56cc73b3682.tar.gz | |
* 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.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@10926 138bc75d-0d04-0410-961f-82ee72b054a4
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; |