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author | obrien <obrien@FreeBSD.org> | 1999-07-10 23:03:59 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 1999-07-10 23:03:59 +0000 |
commit | d4db5fb866b7ad5216abd5047774a3973b9901a9 (patch) | |
tree | edca008aa0e9cdfae2ef7478f9109ca7f3a2a028 /contrib/gcc/unroll.c | |
parent | b822db150531f5b7067d4d970080b7358e07ae89 (diff) | |
download | FreeBSD-src-d4db5fb866b7ad5216abd5047774a3973b9901a9.zip FreeBSD-src-d4db5fb866b7ad5216abd5047774a3973b9901a9.tar.gz |
Virgin import of GCC 2.7.2.3
Diffstat (limited to 'contrib/gcc/unroll.c')
-rw-r--r-- | contrib/gcc/unroll.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/contrib/gcc/unroll.c b/contrib/gcc/unroll.c index c598578..4ba6efb 100644 --- a/contrib/gcc/unroll.c +++ b/contrib/gcc/unroll.c @@ -2908,12 +2908,19 @@ find_splittable_givs (bl, unroll_type, loop_start, loop_end, increment, #endif } - /* Givs are only updated once by definition. Mark it so if this is + /* Unreduced givs are only updated once by definition. Reduced givs + are updated as many times as their biv is. Mark it so if this is a splittable register. Don't need to do anything for address givs where this may not be a register. */ if (GET_CODE (v->new_reg) == REG) - splittable_regs_updates[REGNO (v->new_reg)] = 1; + { + int count = 1; + if (! v->ignore) + count = reg_biv_class[REGNO (v->src_reg)]->biv_count; + + splittable_regs_updates[REGNO (v->new_reg)] = count; + } result++; |