[r14-7033 Regression] FAIL: g++.dg/gomp/bad-array-section-4.C -std=c++98 at line 37 (test for warnings, line 35) on Linux/x86_64

[haochen.jiang]

On Linux/x86_64,

1413af02d62182bc1e19698aaa4dae406f8f13bf is the first bad commit
commit 1413af02d62182bc1e19698aaa4dae406f8f13bf
Author: Julian Brown <julian@codesourcery.com>
Date:   Mon Sep 12 17:11:29 2022 +0000

    OpenMP: lvalue parsing for map/to/from clauses (C++)

caused

FAIL: g++.dg/gomp/array-section-1.C  -std=c++14  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] \\[len: [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++17  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] \\[len: [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++20  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] \\[len: [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-1.C  -std=c++98  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] \\[len: [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x != 0 \\? 3 : 5>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++14  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR <x>\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++14  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++17  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR <x>\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++17  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++20  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR <x>\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++20  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++98  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(40 - \\(sizetype\\) SAVE_EXPR <x>\\) \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/array-section-2.C  -std=c++98  scan-tree-dump original "map\\(tofrom:arr1\\[SAVE_EXPR <x>\\] \\[len: \\(sizetype\\) y \\* [0-9]+\\]\\) map\\(firstprivate:arr1 \\[pointer assign, bias: \\(long int\\) &arr1\\[SAVE_EXPR <x>\\] - \\(long int\\) &arr1\\]\\)"
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++14  at line 37 (test for warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++17  at line 37 (test for warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++20  at line 37 (test for warnings, line 35)
FAIL: g++.dg/gomp/bad-array-section-4.C  -std=c++98  at line 37 (test for warnings, line 35)

with GCC configured with

../../gcc/configure --prefix=/export/users/haochenj/src/gcc-bisect/master/master/r14-7033/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=g++.dg/gomp/array-section-1.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-1.C --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-2.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=g++.dg/gomp/array-section-2.C --target_board='unix{-m32\ -march=cascadelake}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=g++.dg/gomp/bad-array-section-4.C --target_board='unix{-m32}'"
$ cd {build_dir}/gcc && make check RUNTESTFLAGS="gomp.exp=g++.dg/gomp/bad-array-section-4.C --target_board='unix{-m32\ -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.)