Hi,
this patch fixes the header comment of canonicalize_loop_ivs. The
generated IV is not guaranteed to be unsigned since the fix for PR49471.
Thanks,
- Tom
Remove 'unsigned' in header comment canonicalize_loop_ivs
2015-06-25 Tom de Vries <t...@codesourcery.com>
* tree-ssa-loop-manip.c (canonicalize_loop_ivs): Don't claim in header
comment that the generated IV is unsigned.
---
gcc/tree-ssa-loop-manip.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
diff --git a/gcc/tree-ssa-loop-manip.c b/gcc/tree-ssa-loop-manip.c
index 29f701c..a72b779 100644
--- a/gcc/tree-ssa-loop-manip.c
+++ b/gcc/tree-ssa-loop-manip.c
@@ -1319,15 +1319,14 @@ rewrite_all_phi_nodes_with_iv (loop_p loop, tree main_iv)
free (bbs);
}
-/* Bases all the induction variables in LOOP on a single induction
- variable (unsigned with base 0 and step 1), whose final value is
- compared with *NIT. When the IV type precision has to be larger
- than *NIT type precision, *NIT is converted to the larger type, the
- conversion code is inserted before the loop, and *NIT is updated to
- the new definition. When BUMP_IN_LATCH is true, the induction
- variable is incremented in the loop latch, otherwise it is
- incremented in the loop header. Return the induction variable that
- was created. */
+/* Bases all the induction variables in LOOP on a single induction variable
+ (with base 0 and step 1), whose final value is compared with *NIT. When the
+ IV type precision has to be larger than *NIT type precision, *NIT is
+ converted to the larger type, the conversion code is inserted before the
+ loop, and *NIT is updated to the new definition. When BUMP_IN_LATCH is true,
+ the induction variable is incremented in the loop latch, otherwise it is
+ incremented in the loop header. Return the induction variable that was
+ created. */
tree
canonicalize_loop_ivs (struct loop *loop, tree *nit, bool bump_in_latch)
--
1.9.1
