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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: Mon, 27 Nov 2023 17:51:13 +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 #56661|0                           |1
        is obsolete|                            |

--- Comment #16 from Patrick O'Neill <patrick at rivosinc dot com> ---
Created attachment 56700
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D56700&action=3Dedit
rv64gcv_zvl512b testsuite failures 2023-11-25

Tested with hash 9866c98e1015d98b8fc346d7cf73a0070cce5f69
CI run:
https://github.com/patrick-rivos/gcc-postcommit-ci/actions/runs/6988591247

Comparison with zvl128b (pr112583):

Resolved failures (present on zvl128b but not zvl256b):
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;"
XPASS: gcc.dg/tree-ssa/pr84512.c scan-tree-dump optimized "return 285;"

New failures (present on zvl256b 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/pr32044.c scan-tree-dump-times optimized " / " 0
FAIL: gcc.dg/tree-ssa/scev-12.c scan-tree-dump-times ivopts "=20
Type:\\tREFERENCE ADDRESS\n" 1
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 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/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/base/cpymem-1.c check-function-bodies f3
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f1
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f2
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f3


Comparison with hash 30d8188e6d1b450533ab0055b951ebfc75022219 zvl256b (prev=
ious
report):

Resolved failures (improved from 30d8188e6d1b450533ab0055b951ebfc75022219)
FAIL: gfortran.dg/gomp/pr27573.f90   -O  (internal compiler error:
verify_gimple failed)
FAIL: gfortran.dg/gomp/pr27573.f90   -O  (test for excess errors)
FAIL: gcc.dg/gomp/pr27573.c (internal compiler error: verify_gimple failed)
FAIL: gcc.dg/gomp/pr27573.c (test for excess errors)
ERROR: gcc.dg/tree-ssa/return-value-range-1.c: 1: syntax error for " dg-do 1
ling "
ERROR: gcc.dg/tree-ssa/return-value-range-1.c: 1: syntax error for " dg-do 1
ling "
FAIL: gcc.dg/tree-ssa/ssa-lim-11.c scan-tree-dump-times lim2 "Executing sto=
re
motion of __gcov0.access_buf\\[[12]\\] from loop 1" 2
FAIL: gcc.dg/vect/pr65518.c -flto -ffat-lto-objects execution test
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

New failures (regression from 30d8188e6d1b450533ab0055b951ebfc75022219)
FAIL: gcc.dg/tree-prof/time-profiler-3.c scan-ipa-dump-times profile "Read
tp_first_run: 0" 1
FAIL: gcc.dg/tree-prof/time-profiler-3.c scan-ipa-dump-times profile "Read
tp_first_run: 2" 1
FAIL: gcc.target/riscv/rvv/base/cpymem-1.c check-function-bodies f3
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f1
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f2
FAIL: gcc.target/riscv/rvv/base/cpymem-2.c check-function-bodies f3

The time-profiler-3.c issue is generic and recorded here: pr112689

This commit is slightly outdated and does not include the fix for pr112661.=