[Bug c++/96504] New: [coroutines] test failures with glibc-2.32

[xry111 at mengyan1223 dot wang]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96504

            Bug ID: 96504
           Summary: [coroutines] test failures with glibc-2.32
           Product: gcc
           Version: 10.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: xry111 at mengyan1223 dot wang
  Target Milestone: ---

With the state-of-art glibc-2.32, gcc-10.2.0 test suite reports several FAILs
about coroutine:

FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O0  execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O1  execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O2  execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O3 -g  execution
test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -Os  execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O2 -flto
-fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/coroutines/torture/co-ret-17-void-ret-coro.C   -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O0  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O1  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O2  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O3 -g  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -Os  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O2 -flto
-fno-use-linker-plugin -flto-partition=none  execution test
FAIL: g++.dg/coroutines/torture/pr95519-05-gro.C   -O2 -flto
-fuse-linker-plugin -fno-fat-lto-objects  execution test

The test program terminates with SIGABRT.