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| author | Richard Henderson <rth@cygnus.com> | 2000-08-08 01:28:00 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-08-08 01:28:00 -0700 |
| commit | 2a3e384f15e6f10fc62b27c6671d899b083fed97 (patch) | |
| tree | bef654b1dd4f2327e04b2250df973c7f458204ae /gcc/reload1.c | |
| parent | 43d1e05928a16e48e017625e8dad6aeca2a31282 (diff) | |
| download | gcc-2a3e384f15e6f10fc62b27c6671d899b083fed97.zip gcc-2a3e384f15e6f10fc62b27c6671d899b083fed97.tar.gz gcc-2a3e384f15e6f10fc62b27c6671d899b083fed97.tar.bz2 | |
tm.texi (LOCAL_REGNO): Document.
* tm.texi (LOCAL_REGNO): Document.
* flow.c (LOCAL_REGNO, EPILOGUE_USES): Provide default.
(mark_regs_live_at_end): Don't mark LOCAL_REGNO registers.
* reload1.c (reload): Likewise when considering nonlocal labels.
* config/ia64/ia64.h (LOCAL_REGNO): New.
* config/sparc/sparc.h (LOCAL_REGNO): New.
From-SVN: r35564
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index d77d08e..fb7d2f5 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -85,6 +85,10 @@ Boston, MA 02111-1307, USA. */ #ifndef REGISTER_MOVE_COST #define REGISTER_MOVE_COST(x, y) 2 #endif + +#ifndef LOCAL_REGNO +#define LOCAL_REGNO(REGNO) 0 +#endif /* During reload_as_needed, element N contains a REG rtx for the hard reg into which reg N has been reloaded (perhaps for a previous insn). */ @@ -654,10 +658,8 @@ reload (first, global, dumpfile) registers. */ if (current_function_has_nonlocal_label) for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) - { - if (! call_used_regs[i] && ! fixed_regs[i]) - regs_ever_live[i] = 1; - } + if (! call_used_regs[i] && ! fixed_regs[i] && ! LOCAL_REGNO (i)) + regs_ever_live[i] = 1; /* Find all the pseudo registers that didn't get hard regs but do have known equivalent constants or memory slots. |