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From: "kugan at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/114653] Not vectorizing the loop with openmp
 reduction.
Date: Wed, 10 Apr 2024 03:55:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114653

--- Comment #2 from kugan at gcc dot gnu.org ---
Thanks. I see the following in the log:
test.cpp:33:53: missed:   not vectorized: relevant stmt not supported: _54 =
=3D
.MASK_LOAD (_53, 32B, _171);
test.cpp:22:19: missed:  bad operation or unsupported loop bound.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode V4SF


test.cpp:22:19: note:   =3D=3D=3D vect_analyze_data_ref_dependences =3D=3D=
=3D
test.cpp:22:19: missed:  bad data dependence.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode VNx16QI

test.cpp:33:53: missed:   not vectorized: relevant stmt not supported: _54 =
=3D
.MASK_LOAD (_53, 32B, _171);
test.cpp:22:19: missed:  bad operation or unsupported loop bound.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode V8QI

test.cpp:22:19: note:   =3D=3D=3D vect_analyze_data_ref_dependences =3D=3D=
=3D
test.cpp:22:19: missed:  bad data dependence.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode VNx8QI

test.cpp:33:53: missed:   not vectorized: relevant stmt not supported: _54 =
=3D
.MASK_LOAD (_53, 32B, _171);
test.cpp:22:19: missed:  bad operation or unsupported loop bound.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode V4HI

test.cpp:22:19: note:   =3D=3D=3D vect_analyze_data_ref_dependences =3D=3D=
=3D
test.cpp:22:19: missed:  bad data dependence.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode VNx4QI

test.cpp:33:53: missed:   not vectorized: relevant stmt not supported: _54 =
=3D
.MASK_LOAD (_53, 32B, _171);
test.cpp:22:19: missed:  bad operation or unsupported loop bound.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode V2SI

test.cpp:22:19: note:   worklist: examine stmt: _57 =3D D.4803[_20];
test.cpp:22:19: note:   =3D=3D=3D vect_analyze_data_ref_dependences =3D=3D=
=3D
test.cpp:22:19: missed:  bad data dependence.
test.cpp:22:19: note:  ***** Analysis  failed with vector mode VNx2QI
test.cpp:22:19: missed: couldn't vectorize loop
test.cpp:22:19: missed: bad data dependence.=