From f80bfdcc84707583a66526fb1fb428eb66389359 Mon Sep 17 00:00:00 2001 From: Andrew Carlotti Date: Wed, 9 Nov 2022 15:59:21 +0000 Subject: [PATCH] Expand comment for tree_niter_desc.max This requirement is enforced by a gcc_checking_assert in record_estimate. gcc/ChangeLog: * tree-ssa-loop.h (tree_niter_desc): Update comment. --- gcc/tree-ssa-loop.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/gcc/tree-ssa-loop.h b/gcc/tree-ssa-loop.h index 6c70f79..c24215b 100644 --- a/gcc/tree-ssa-loop.h +++ b/gcc/tree-ssa-loop.h @@ -52,7 +52,8 @@ public: may_be_zero == false), more precisely the number of executions of the latch of the loop. */ widest_int max; /* The upper bound on the number of iterations of - the loop. */ + the loop. If niter is constant, then these values + must agree. */ /* The simplified shape of the exit condition. This information is used by loop unrolling. If CMP is ERROR_MARK, then the loop cannot be unrolled. -- 2.7.4