[r13-2665 Regression] FAIL: c-c++-common/gomp/target-50.c -std=c++98 scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2 on Linux/x86_64

[r13-2665 Regression] FAIL: c-c++-common/gomp/target-50.c -std=c++98 scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2 on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

23baa717c991d77f206a9358ce2c04960ccf9eea is the first bad commit
commit 23baa717c991d77f206a9358ce2c04960ccf9eea
Author: Julian Brown <julian@codesourcery.com>
Date:   Wed Feb 16 09:15:39 2022 -0800

    OpenMP/OpenACC struct sibling list gimplification extension and rework

caused

FAIL: c-c++-common/gomp/target-50.c scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2
FAIL: c-c++-common/gomp/target-50.c  -std=c++14  scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2
FAIL: c-c++-common/gomp/target-50.c  -std=c++17  scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2
FAIL: c-c++-common/gomp/target-50.c  -std=c++20  scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2
FAIL: c-c++-common/gomp/target-50.c  -std=c++98  scan-tree-dump-times gimple "map\\(struct:\\*tmp \\[len: 1\\]\\) map\\(alloc:tmp[._0-9]*->arr \\[len: [0-9]+\\]\\) map\\(tofrom:\\*_[0-9]+ \\[len: [0-9]+\\]\\) map\\(attach:tmp[._0-9]*->arr \\[bias: 0\\]\\)" 2

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r13-2665/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="gomp.exp=c-c++-common/gomp/target-50.c --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=c-c++-common/gomp/target-50.c --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=c-c++-common/gomp/target-50.c --target_board='unix{-m64}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=c-c++-common/gomp/target-50.c --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)