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From: "patrick at rivosinc dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/112598] RISC-V regression testsuite errors with
 rv64gcv_zvl512b
Date: Tue, 21 Nov 2023 17:43:53 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112598

Patrick O'Neill <patrick at rivosinc dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #56625|0                           |1
        is obsolete|                            |

--- Comment #4 from Patrick O'Neill <patrick at rivosinc dot com> ---
Created attachment 56661
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D56661&action=3Dedit
rv64gcv_zvl512b testsuite failures 2023-11-21

This report does not include the fix by Juzhe.
Tested with hash 30d8188e6d1b450533ab0055b951ebfc75022219

Comparison with zvl128b (pr112583):

Resolved failures (present on zvl128b but not zvl512b):
XPASS: g++.dg/tree-ssa/pr83518.C  -std=3Dgnu++14  scan-tree-dump optimized
"return 15;"
XPASS: g++.dg/tree-ssa/pr83518.C  -std=3Dgnu++17  scan-tree-dump optimized
"return 15;"
XPASS: g++.dg/tree-ssa/pr83518.C  -std=3Dgnu++20  scan-tree-dump optimized
"return 15;"
XPASS: g++.dg/tree-ssa/pr83518.C  -std=3Dgnu++98  scan-tree-dump optimized
"return 15;"
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
FAIL: gcc.target/riscv/rvv/autovec/gather-scatter/gather_load_run-12.c
execution test
XPASS: gcc.dg/tree-ssa/pr84512.c scan-tree-dump optimized "return 285;"

New failures (present on zvl512b but not zvl128b):
FAIL: gfortran.dg/class_67.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/matmul_1.f90   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/matmul_1.f90   -O3 -g  execution test
FAIL: gfortran.dg/maxval_char_3.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/maxval_char_3.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/maxval_char_3.f90   -O3 -g  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/maxval_char_3.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/maxval_char_4.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/maxval_char_4.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/maxval_char_4.f90   -O3 -g  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/maxval_char_4.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/minval_char_3.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/minval_char_3.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/minval_char_3.f90   -O3 -g  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/minval_char_3.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/minval_char_4.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/minval_char_4.f90   -O3 -fomit-frame-pointer -funroll-loo=
ps
-fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/minval_char_4.f90   -O3 -g  (internal compiler error: in
duplicate_and_interleave, at tree-vect-slp.cc:8025)
FAIL: gfortran.dg/minval_char_4.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/proc_ptr_comp_12.f90   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/proc_ptr_comp_12.f90   -O3 -g  execution test
FAIL: gcc.c-torture/compile/20090907-1.c   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler
error: in partial_subreg_p, at rtl.h:3187)
FAIL: gcc.c-torture/compile/20090907-1.c   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess
errors)
FAIL: gcc.dg/no-strict-overflow-6.c scan-tree-dump optimized "return 0"
FAIL: gcc.dg/pr30957-1.c execution test
FAIL: gcc.dg/pr30957-1.c scan-rtl-dump loop2_unroll "Expanding Accumulator"
FAIL: gcc.dg/torture/pr58955-2.c   -O3 -fomit-frame-pointer -funroll-loops
-fpeel-loops -ftracer -finline-functions  execution test
FAIL: gcc.dg/tree-ssa/ivopts-lt-2.c scan-tree-dump-times ivopts "PHI <p_" 1
FAIL: gcc.dg/tree-ssa/ivopts-lt-2.c scan-tree-dump-times ivopts "PHI" 1
FAIL: gcc.dg/tree-ssa/ivopts-lt-2.c scan-tree-dump-times ivopts "p_[0-9]* <=
" 1
FAIL: gcc.dg/tree-ssa/scev-12.c scan-tree-dump-times ivopts "=20
Type:\\tREFERENCE ADDRESS\n" 1
FAIL: gcc.dg/vect/slp-reduc-sad-2.c scan-tree-dump-not vect "access with ga=
ps
requires scalar epilogue loop"
FAIL: gcc.dg/vect/trapv-vect-reduc-4.c scan-tree-dump-times vect "using an
in-order \\(fold-left\\) reduction" 1
XPASS: gcc.dg/vect/vect-live-slp-3.c -flto -ffat-lto-objects=20
scan-tree-dump-times vect "vectorizing stmts using SLP" 4
XPASS: gcc.dg/vect/vect-live-slp-3.c scan-tree-dump-times vect "vectorizing
stmts using SLP" 4
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-1.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-1.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-16.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-16.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-17.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-17.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-3.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-3.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-5.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-5.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-6.c execution test
FAIL: gcc.target/riscv/rvv/autovec/partial/slp_run-6.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/reduc/reduc_run-9.c execution test
FAIL: gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-run.c -std=3Dc99 -=
O3
-ftree-vectorize --param riscv-autovec-preference=3Dfixed-vlmax execution t=
est
FAIL: gcc.target/riscv/rvv/autovec/vls-vlmax/vec_extract-runu.c -std=3Dc99 =
-O3
-ftree-vectorize --param riscv-autovec-preference=3Dfixed-vlmax execution t=
est
FAIL: gcc.target/riscv/rvv/autovec/vls-vlmax/vec_set-run.c -std=3Dc99 -O3
-ftree-vectorize --param riscv-autovec-preference=3Dfixed-vlmax execution t=
est
FAIL: gcc.dg/vect/pr65518.c -flto -ffat-lto-objects  scan-tree-dump vect "u=
sing
gather/scatter for strided/grouped access"
FAIL: gcc.dg/vect/pr65518.c -flto -ffat-lto-objects execution test
FAIL: gcc.dg/vect/pr65518.c scan-tree-dump vect "using gather/scatter for
strided/grouped access"
XPASS: gcc.dg/vect/slp-reduc-7.c -flto -ffat-lto-objects  scan-tree-dump-ti=
mes
vect "vectorizing stmts using SLP" 1
XPASS: gcc.dg/vect/slp-reduc-7.c scan-tree-dump-times vect "vectorizing stm=
ts
using SLP" 1
FAIL: gcc.dg/vect/slp-reduc-sad-2.c -flto -ffat-lto-objects  scan-tree-dump=
-not
vect "access with gaps requires scalar epilogue loop"
FAIL: gcc.dg/tree-ssa/pr32044.c scan-tree-dump-times optimized " / " 0

This is outdated since it does not include Juzhe's fix but I'll give a simi=
lar
report next week when I update it again.=