[r14-8206 Regression] FAIL: gfortran.dg/forall_1.f90 -O3 -g (test for excess errors) on Linux/x86_64

[r14-8206 Regression] FAIL: gfortran.dg/forall_1.f90 -O3 -g (test for excess errors) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

0f38666680d6ad0e40c4a8b6d94b2c93931cdf42 is the first bad commit
commit 0f38666680d6ad0e40c4a8b6d94b2c93931cdf42
Author: Richard Biener <rguenther@suse.de>
Date:   Wed Jan 17 13:24:22 2024 +0100

    tree-optimization/113374 - early break vect and virtual operands

caused

FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error: Segmentation fault)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -g  (internal compiler error: Segmentation fault)
FAIL: gcc.c-torture/execute/20150611-1.c   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/forall_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error: in add_phi_arg, at tree-phinodes.cc:366)
FAIL: gfortran.dg/forall_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/forall_1.f90   -O3 -g  (internal compiler error: in add_phi_arg, at tree-phinodes.cc:366)
FAIL: gfortran.dg/forall_1.f90   -O3 -g  (test for excess errors)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-8206/usr --enable-clocale=gnu --with-system-zlib --with-demangler-in-ld --with-fpmath=sse --enable-languages=c,c++,fortran --enable-cet --without-isl --enable-libmpx x86_64-linux --disable-bootstrap

To reproduce:

$ cd {build_dir}/gcc && make check RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/20150611-1.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="execute.exp=gcc.c-torture/execute/20150611-1.c --target_board='unix{-m64\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/forall_1.f90 --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="dg.exp=gfortran.dg/forall_1.f90 --target_board='unix{-m64\ -march=cascadelake}'"

(Please do not reply to this email, for question about this report, contact me at haochen dot jiang at intel.com.)
(If you met problems with cascadelake related, disabling AVX512F in command line might save that.)
(However, please make sure that there is no potential problems with AVX512.)