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| author | Richard Henderson <rth@redhat.com> | 2001-01-16 03:15:49 -0800 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2001-01-16 03:15:49 -0800 |
| commit | c55fa4d6b1c66960f3f75195ace7c6e030672ff9 (patch) | |
| tree | 80d197af61d041d04410d977ef7abaf4c0a2c5a0 /gcc | |
| parent | 9607098926e253c5f430a422b3b64d346891e557 (diff) | |
| download | gcc-c55fa4d6b1c66960f3f75195ace7c6e030672ff9.zip gcc-c55fa4d6b1c66960f3f75195ace7c6e030672ff9.tar.gz gcc-c55fa4d6b1c66960f3f75195ace7c6e030672ff9.tar.bz2 | |
unroll.c (precondition_loop_p): Fail if no iteration variable found.
* unroll.c (precondition_loop_p): Fail if no iteration
variable found.
From-SVN: r39064
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/unroll.c | 9 |
2 files changed, 13 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index ff2e283..a4d8d79 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2001-01-16 Richard Henderson <rth@redhat.com> + + * unroll.c (precondition_loop_p): Fail if no iteration + variable found. + 2001-01-16 Phil Edwards <pme@sources.redhat.com> * gcc.c: When -fsyntax-only is given, do not complain about diff --git a/gcc/unroll.c b/gcc/unroll.c index 9289595..ec0a151 100644 --- a/gcc/unroll.c +++ b/gcc/unroll.c @@ -1381,7 +1381,14 @@ precondition_loop_p (loop, initial_value, final_value, increment, mode) return 1; } - if (loop_info->initial_value == 0) + if (loop_info->iteration_var == 0) + { + if (loop_dump_stream) + fprintf (loop_dump_stream, + "Preconditioning: Could not find iteration variable.\n"); + return 0; + } + else if (loop_info->initial_value == 0) { if (loop_dump_stream) fprintf (loop_dump_stream, |