https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68573
Bug ID: 68573
Summary: [4.8/4.9/5/6 Regression] -ftree-vectorizer-verbose=<n>
discarded without notice
Product: gcc
Version: 5.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
[forwarded from https://bugs.debian.org/PR805044]
In 4.7, -ftree-vectorizer-verbose=<n> had some output, however in newer
versions this option is just discarded without giving any output.
Test case from PR50680.
$ gcc-4.7 -Ofast -ftree-vectorizer-verbose=1 --std=c99 -msse -c vectorizeme.c
|tail
Analyzing loop at vectorizeme.c:54
Analyzing loop at vectorizeme.c:58
Vectorizing loop at vectorizeme.c:58
58: LOOP VECTORIZED.
vectorizeme.c:57: note: vectorized 1 loops in function.
Analyzing loop at vectorizeme.c:62
Vectorizing loop at vectorizeme.c:62
62: LOOP VECTORIZED.
vectorizeme.c:61: note: vectorized 1 loops in function.
