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| author | Jeffrey A Law <law@cygnus.com> | 1999-01-27 01:43:17 +0000 |
|---|---|---|
| committer | Jeff Law <law@gcc.gnu.org> | 1999-01-26 18:43:17 -0700 |
| commit | ab87f8c8d19d6b0954516d7f1d8733f42076be81 (patch) | |
| tree | e7daf0f28ecb5da9660b21aee68e6919f846c183 /gcc/reload1.c | |
| parent | 01b4cf2b7a1fe9a3f6f070217be5f93854c54545 (diff) | |
| download | gcc-ab87f8c8d19d6b0954516d7f1d8733f42076be81.zip gcc-ab87f8c8d19d6b0954516d7f1d8733f42076be81.tar.gz gcc-ab87f8c8d19d6b0954516d7f1d8733f42076be81.tar.bz2 | |
Merge in gcc2 snapshot 19980929. See gcc/ChangeLog and gcc/FSFChangeLog for
details.
From-SVN: r24879
Diffstat (limited to 'gcc/reload1.c')
| -rw-r--r-- | gcc/reload1.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/gcc/reload1.c b/gcc/reload1.c index d86c406..914009b 100644 --- a/gcc/reload1.c +++ b/gcc/reload1.c @@ -1175,6 +1175,28 @@ reload (first, global, dumpfile) warning ("frame size too large for reliable stack checking"); } + /* If we are doing stack checking, give a warning if this function's + frame size is larger than we expect. */ + if (flag_stack_check && ! STACK_CHECK_BUILTIN) + { + HOST_WIDE_INT size = get_frame_size () + STACK_CHECK_FIXED_FRAME_SIZE; + static int verbose_warned = 0; + + for (i = 0; i < FIRST_PSEUDO_REGISTER; i++) + if (regs_ever_live[i] && ! fixed_regs[i] && call_used_regs[i]) + size += UNITS_PER_WORD; + + if (size > STACK_CHECK_MAX_FRAME_SIZE) + { + warning ("frame size too large for reliable stack checking"); + if (! verbose_warned) + { + warning ("try reducing the number of local variables"); + verbose_warned = 1; + } + } + } + /* Indicate that we no longer have known memory locations or constants. */ if (reg_equiv_constant) free (reg_equiv_constant); |