[Bug c++/99459] New: [11 Regression] Many coroutines regressions on armv7hl-linux-gnueabi

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99459

            Bug ID: 99459
           Summary: [11 Regression] Many coroutines regressions on
                    armv7hl-linux-gnueabi
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jakub at gcc dot gnu.org
  Target Milestone: ---

Seems likely one of the last weeks coroutines change broke a lot of coroutine
tests on 32-bit arm:
FAIL: g++.dg/coroutines/coro-missing-initial-suspend.C (test for excess errors)
FAIL: g++.dg/coroutines/pr94886-folly-3.C (internal compiler error)
FAIL: g++.dg/coroutines/pr94886-folly-3.C (test for excess errors)
FAIL: g++.dg/coroutines/pr95599.C (internal compiler error)
FAIL: g++.dg/coroutines/pr95599.C (test for excess errors)
FAIL: g++.dg/coroutines/pr95616-2.C (internal compiler error)
FAIL: g++.dg/coroutines/pr95616-2.C  (test for errors, line 28)
FAIL: g++.dg/coroutines/pr95616-2.C (test for excess errors)
FAIL: g++.dg/coroutines/pr95616-3.C (internal compiler error)
FAIL: g++.dg/coroutines/pr95616-3.C  (test for errors, line 19)
FAIL: g++.dg/coroutines/pr95616-3.C (test for excess errors)
FAIL: g++.dg/coroutines/pr95616-4.C (internal compiler error)
FAIL: g++.dg/coroutines/pr95616-4.C  (test for errors, line 20)
FAIL: g++.dg/coroutines/pr95616-4.C (test for excess errors)
...
FAIL: g++.dg/coroutines/torture/pr95003.C   -O1  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O1  (test for excess errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2  (test for excess errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler
error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O3 -fomit-frame-pointer
-funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess
errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O3 -g  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O3 -g  (test for excess errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -Os  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -Os  (test for excess errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2 -flto -fno-use-linker-plugin
-flto-partition=none  (test for excess errors)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  (internal compiler error)
FAIL: g++.dg/coroutines/torture/pr95003.C   -O2 -flto -fuse-linker-plugin
-fno-fat-lto-objects  (test for excess errors)

Typical ICEs are like:
0x3c7de7 crash_signal
        ../../gcc/toplev.c:328
0x1e301b build_co_await
        ../../gcc/cp/coroutines.cc:871
0x1e52ab build_init_or_final_await
        ../../gcc/cp/coroutines.cc:2628
0x1e52ab coro_rewrite_function_body
        ../../gcc/cp/coroutines.cc:4023
0x1e52ab morph_fn_to_coro(tree_node*, tree_node**, tree_node**)
        ../../gcc/cp/coroutines.cc:4166
0x7b045f finish_function(bool)
        ../../gcc/cp/decl.c:17207

or
0x3c7de7 crash_signal
        ../../gcc/toplev.c:328
0x1e34af build_co_await
        ../../gcc/cp/coroutines.cc:1034
0x1e52ab build_init_or_final_await
        ../../gcc/cp/coroutines.cc:2628
0x1e52ab coro_rewrite_function_body
        ../../gcc/cp/coroutines.cc:4023
0x1e52ab morph_fn_to_coro(tree_node*, tree_node**, tree_node**)
        ../../gcc/cp/coroutines.cc:4166
0x7b045f finish_function(bool)
        ../../gcc/cp/decl.c:17207