[Bug ipa/116333] unused result of pure function is not optimized out because of inlining

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116333 --- Comment #3 from Pali Rohár --- Hello Andrew, have you checked if this is really duplicate?

[Bug ipa/116333] unused result of pure function is not optimized out because of inlining

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116333 --- Comment #2 from Pali Rohár --- Hello Andrew, you have wrote that this function is not optimized out because of inlining. I tried to mark _winshowcmd() function with __attribute__((noinline)) but result is similar. Function _winshowcmd() is p

[Bug lto/116334] New: LTO dllimport generates ureferenced symbol and unused code

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116334 Bug ID: 116334 Summary: LTO dllimport generates ureferenced symbol and unused code Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal

[Bug lto/116333] New: unused result of pure function is not optimized out

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116333 Bug ID: 116333 Summary: unused result of pure function is not optimized out Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Compo

[Bug target/108866] Allow to pass Windows resource file (.rc) as input to gcc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108866 --- Comment #9 from Pali Rohár --- (In reply to peter0x44 from comment #7) > 5) windres --help has this list of "supported targets": > x86_64-w64-mingw32-windres: supported targets: pe-x86-64 pei-x86-64 > pe-bigobj-x86-64 elf64-x86-64 pe-i386 pe

[Bug middle-end/114449] bswap64 not optimized

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114449 --- Comment #3 from Pali Rohár --- Note that clang optimizes it just with -O2 and does not require any special pragma.

[Bug middle-end/114449] bswap64 not optimized

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114449 --- Comment #2 from Pali Rohár --- Interesting... I was expecting that some -O3 or better -Ofast option tells gcc to optimize the code as much as possible. I added that pragma before for-loop in the first example and then gcc really optimized t

[Bug middle-end/114449] New: bswap64 not optimized

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114449 Bug ID: 114449 Summary: bswap64 not optimized Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Ass

[Bug middle-end/114448] New: Roundup not optimized

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114448 Bug ID: 114448 Summary: Roundup not optimized Product: gcc Version: 13.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Ass

[Bug target/108866] Allow to pass Windows resource file (.rc) as input to gcc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108866 --- Comment #8 from Pali Rohár --- Thank you for input, as you already figured out there is lot of work for this. And I think I'm not skilled enough to implement everything properly, so I would have to let this to gcc developers. I will answer q

[Bug target/108866] Allow to pass Windows resource file (.rc) as input to gcc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108866 --- Comment #5 from Pali Rohár --- Thank you for info, I read that blog post and based on those details I adjusted spec file $ x86_64-w64-mingw32-gcc -dumpspecs > test.spec by adding additional lines to test.spec: .rc: x86_64-w64-mingw32-wind

[Bug target/109317] -Os generates bigger code than -O2 on 32-bit ARM

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109317 --- Comment #3 from Pali Rohár --- Do you need some more input or test data about this issue?

[Bug target/108866] Allow to pass Windows resource file (.rc) as input to gcc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108866 --- Comment #2 from Pali Rohár --- Andrew, I do not know what is gcc driver nor what to do for it. But if you can show me some pointers, I can try it. Or if you need more details about files, usage, etc... please let me know.

[Bug target/108849] __declspec(code_seg("segname")) does not work

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108849 --- Comment #3 from Pali Rohár --- Arsen, so based on my understooding (please correct me if I'm wrong), gcc's "section" can be used on both code (functions) and data (global variables). And ms's "code_seg" can be used only on code (functions).

[Bug middle-end/114319] htobe64-like function is not optimized on 32-bit x86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114319 --- Comment #8 from Pali Rohár --- Thanks for quick response and fixup of this issue.

[Bug middle-end/114319] htobe64-like function is not optimized on 32-bit x86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114319 --- Comment #3 from Pali Rohár --- For details, here is the compiler which produces the mentioned code: $ gcc -v Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/12/lto-wrapper OFFLOAD_TARGET_NAMES=nvptx-n

[Bug target/114319] New: htobe64-like function is not optimized on 32-bit x86

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114319 Bug ID: 114319 Summary: htobe64-like function is not optimized on 32-bit x86 Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Comp

[Bug target/108849] __declspec(code_seg("segname")) does not work

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108849 --- Comment #2 from Pali Rohár --- `section` is the best option. MS says about it: https://learn.microsoft.com/en-us/cpp/cpp/code-seg-declspec > The code_seg declaration attribute names an executable text segment in the > .obj file in which t

[Bug target/108851] gcc -pie generates unwanted PE export table

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108851 Pali Rohár changed: What|Removed |Added See Also|https://sourceware.org/bugz |https://sourceware.org/bugz

[Bug target/108853] Add new -mcpu=e500 alias for -mcpu=8540

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108853 --- Comment #5 from Pali Rohár --- Back to the original question. Can gcc add a new option -mcpu=e500 as alias to -mcpu=8540 ?

[Bug target/108851] gcc -pie generates unwanted PE export table

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108851 --- Comment #3 from Pali Rohár --- Or do you have any other suggestions?

[Bug target/109317] -Os generates bigger code than -O2 on 32-bit ARM

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109317 --- Comment #2 from Pali Rohár --- Any idea what can be done with this?

[Bug lto/109369] LTO drops explicitly referenced symbol _pei386_runtime_relocator

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109369 --- Comment #10 from Pali Rohár --- > I would suggest to move the bug to the Binutils Bugzilla. Done: https://sourceware.org/bugzilla/show_bug.cgi?id=30343

[Bug lto/109369] LTO drops explicitly referenced symbol _pei386_runtime_relocator

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109369 --- Comment #8 from Pali Rohár --- So from the discussion, do I understand correctly that this is rather LD linker issue?

[Bug target/108851] gcc -pie generates unwanted PE export table

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108851 --- Comment #2 from Pali Rohár --- So should I report this issue to binutils bugtracker then?

[Bug lto/109369] LTO drops explicitly referenced symbol _pei386_runtime_relocator

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109369 --- Comment #4 from Pali Rohár --- I wanted to point that marking _pei386_runtime_relocator() function with __attribute__((used)) is working fine. And whether _pei386_runtime_relocator() should participate in LTO at all? I would rather ask, why

[Bug lto/109368] LTO drops entry point symbol

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109368 --- Comment #4 from Pali Rohár --- Reported to binutils: https://sourceware.org/bugzilla/show_bug.cgi?id=30300

[Bug lto/109368] LTO drops entry point symbol

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109368 --- Comment #2 from Pali Rohár --- I do not know. The issue happens when LTO is enabled for GCC.

[Bug lto/109369] New: LTO drops explicitly referenced symbol _pei386_runtime_relocator

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109369 Bug ID: 109369 Summary: LTO drops explicitly referenced symbol _pei386_runtime_relocator Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal

[Bug lto/109368] New: LTO drops entry point symbol

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109368 Bug ID: 109368 Summary: LTO drops entry point symbol Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: lto Ass

[Bug target/109317] New: -Os generates bigger code than -O2 on 32-bit ARM

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109317 Bug ID: 109317 Summary: -Os generates bigger code than -O2 on 32-bit ARM Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug target/108853] Add new -mcpu=e500 alias for -mcpu=8540

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108853 --- Comment #3 from Pali Rohár --- I'm still using processors with e500 cores with recent Linux kernel versions and I know also other people who also still using them. Note that NXP still supports some QorIQ processors which have integrated e50

[Bug c/108866] New: Allow to pass Windows resource file (.rc) as input to gcc

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108866 Bug ID: 108866 Summary: Allow to pass Windows resource file (.rc) as input to gcc Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal P

[Bug c/108849] New: __declspec(code_seg("segname")) does not work

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108849 Bug ID: 108849 Summary: __declspec(code_seg("segname")) does not work Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug target/108853] New: Add new -mcpu=e500 alias for -mcpu=8540

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108853 Bug ID: 108853 Summary: Add new -mcpu=e500 alias for -mcpu=8540 Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target

[Bug c/108852] New: Add gcc option for building NT kernel driver

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108852 Bug ID: 108852 Summary: Add gcc option for building NT kernel driver Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c

[Bug c/108851] New: gcc -pie generates unwanted PE export table

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108851 Bug ID: 108851 Summary: gcc -pie generates unwanted PE export table Product: gcc Version: 12.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c