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| author | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-01-19 23:24:27 +0000 |
|---|---|---|
| committer | kenner <kenner@138bc75d-0d04-0410-961f-82ee72b054a4> | 1993-01-19 23:24:27 +0000 |
| commit | e65e050b62dae54b202452f5af7867f6e27c194e (patch) | |
| tree | 602aef1fa2aefedc1ad48f0b398316529f9da629 /gcc/global.c | |
| parent | 002902af4b15b1d270a2297c20be6976242e2171 (diff) | |
| download | gcc-e65e050b62dae54b202452f5af7867f6e27c194e.tar.gz | |
(find_reg): Add comment about nonlocal labels.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@3284 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/global.c')
| -rw-r--r-- | gcc/global.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/global.c b/gcc/global.c index a96d3efd593..967526e3c30 100644 --- a/gcc/global.c +++ b/gcc/global.c @@ -1040,7 +1040,11 @@ find_reg (allocno, losers, alt_regs_p, accept_call_clobbered, retrying) } no_prefs: - /* If we haven't succeeded yet, try with caller-saves. */ + /* If we haven't succeeded yet, try with caller-saves. + We need not check to see if the current function has nonlocal + labels because we don't put any pseudos that are live over calls in + registers in that case. */ + if (flag_caller_saves && best_reg < 0) { /* Did not find a register. If it would be profitable to |