On Tue, Jan 30, 2024 at 6:33 PM H.J. Lu hjl.tools@gmail.com wrote:

On Tue, Jan 30, 2024 at 5:45 PM ci_notify@linaro.org wrote:

...

Dear contributor, our automatic CI has detected problems related to your patch(es). Please find some details below. If you have any questions, please follow up on linaro-toolchain@lists.linaro.org mailing list, Libera's #linaro-tcwg channel, or ping your favourite Linaro toolchain developer on the usual project channel.

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In gcc_check master-aarch64 after:

| gcc patch https://patchwork.sourceware.org/patch/85019 | Author: H.J. Lu hjl.tools@gmail.com | Date: Tue Jan 30 04:56:44 2024 -0800 | | Handle private COMDAT function symbol reference in readonly data section | | For a private COMDAT function symbol reference in readonly data section, | instead of putting it in .data.rel.ro or .rodata.cst section, call | function_rodata_section to get the read-only or relocated read-only | data section associated with the function DECL so that the COMDAT | section will be used for the private COMDAT function symbol. | ... 14 lines of the commit log omitted. | ... applied on top of baseline commit: | f2061b2a964 c++: avoid -Wdangling-reference for std::span-like classes [PR110358]

FAIL: 29 regressions

regressions.sum: === gcc tests ===

Running gcc:gcc.c-torture/execute/execute.exp ... FAIL: gcc.c-torture/execute/pr79286.c -Os (internal compiler error: Segmentation fault) FAIL: gcc.c-torture/execute/pr79286.c -Os (test for excess errors) UNRESOLVED: gcc.c-torture/execute/pr79286.c -Os compilation failed to produce executable

Running gcc:gcc.dg/torture/dg-torture.exp ... FAIL: gcc.dg/torture/pr67109.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (internal compiler error: Segmentation fault) FAIL: gcc.dg/torture/pr67109.c -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions (test for excess errors) ... and 25 more entries

I can't reproduce it with a cross compiler on x86-64 configured with

--target=aarch64-linux

But I sent out the v2 patch:

https://patchwork.sourceware.org/project/gcc/list/?series=30393

to check decl non-null before dereferencing it.

-- H.J.

Apparently, this issue can only be reproduced on aarch64 machine. My v2 patch should fix it.