[PATCH] Update documentation for -ftree-loop-vectorize and -ftree-slp-vectorize which are enabled by default at -02.

[liuhongt]

Bootstrappend on x86_64-pc-linux-gnu{-m32,}
Ok for trunk?

gcc/ChangeLog:

	PR tree-optimization/103077
	* doc/invoke.texi (Options That Control Optimization):
	Update documentation for -ftree-loop-vectorize and
	-ftree-slp-vectorize which are enabled by default at -02.
---
 gcc/doc/invoke.texi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index c5730228821..22d17090641 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -11958,13 +11958,13 @@ and @option{-ftree-slp-vectorize} if not explicitly specified.
 @item -ftree-loop-vectorize
 @opindex ftree-loop-vectorize
 Perform loop vectorization on trees. This flag is enabled by default at
-@option{-O3} and by @option{-ftree-vectorize}, @option{-fprofile-use},
+@option{-O2} and by @option{-ftree-vectorize}, @option{-fprofile-use},
 and @option{-fauto-profile}.
 
 @item -ftree-slp-vectorize
 @opindex ftree-slp-vectorize
 Perform basic block vectorization on trees. This flag is enabled by default at
-@option{-O3} and by @option{-ftree-vectorize}, @option{-fprofile-use},
+@option{-O2} and by @option{-ftree-vectorize}, @option{-fprofile-use},
 and @option{-fauto-profile}.
 
 @item -ftrivial-auto-var-init=@var{choice}
-- 
2.18.1