Re: GCC optimization and speedup capabilities
Simon Richter <[email protected]> Wed, 20 May 2026 12:12:44 +0900
| Newsgroups | gmane.comp.gcc.help |
|---|---|
| Message-ID | <[email protected]> |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------cYB8BWvPD1j05PALWaGd2RYk Content-Type: multipart/mixed; boundary="------------iVCaCd5fTgShmoXumj9e6O30"; protected-headers="v1" From: Simon Richter <[email protected]> To: [email protected] Message-ID: <[email protected]> Subject: Re: GCC optimization and speedup capabilities References: <tza_G6Al-iXMnXyic_I_4kXR266iS5ARjnTqxmj1T5Z02tVDi9EyIpcsqm2CmMIOmzw2DBAjaqZTCWCAWaVYfzsu3zRfBrR7V-nKfTTJJ-s=@protonmail.com> In-Reply-To: <tza_G6Al-iXMnXyic_I_4kXR266iS5ARjnTqxmj1T5Z02tVDi9EyIpcsqm2CmMIOmzw2DBAjaqZTCWCAWaVYfzsu3zRfBrR7V-nKfTTJJ-s=@protonmail.com> --------------iVCaCd5fTgShmoXumj9e6O30 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGksDQoNCk9uIDUvMjAvMjYgMDc6NDEsIEhlaW1lIHZpYSBHY2MtaGVscCB3cm90ZToNCg0K PiBHQ0MgY2FuIGFkZCBvcHRpbWlzYXRpb25zIGZvciBhIHByb2dyYW0gYXV0b21hdGljYWxs eS4gIElzIGl0IGNhcGFibGUNCj4gb2YgdGFraW5nIGFkdmFudGFnZSBvZiBtdWx0aXBsZSB0 aHJlYWRzIGFuZCBhdmFpbGFibGUgY29yZXMsIHdpdGhvdXQNCj4gdGhlIGRldmVsb3BlciBo YXZpbmcgdG8gY29kZSB0aGVtIG9uIGEgc2luZ2xlIG1hY2hpbmU/DQoNClRoZXJlIGlzIE9w ZW5NUCwgd2hpY2ggYWxsb3dzIHVzaW5nIGFuIGF0dHJpYnV0ZS1saWtlIHN5bnRheCBvbiBh IGxvb3AgDQp0byBpbmRpY2F0ZSB0aGF0IGl0IHNob3VsZCBiZSBwYXJhbGxlbGl6ZWQgYWNy b3NzIG11bHRpcGxlIHRocmVhZHMuDQoNClRoaXMgZG9lcyByZXF1aXJlIHByb2dyYW1tZXIg YWN0aW9uIHRvIHNwZWNpZnkgd2hpY2ggbG9vcCwgYnV0IHZlcnkgDQpsaXR0bGUgb3RoZXIg Y29kZSBjaGFuZ2VzLCBzbyBpdCBjYW4gYmUgdXNlZCBmb3Igc29tZSBxdWljayBnYWlucy4N Cg0KVGhpcyBpcyBnZW5lcmFsbHkgb25seSB3b3J0aCBpdCBpZiB5b3VyIHByb2dyYW0gaGFz IHNvbWUgbG9vcCB0aGF0IHJ1bnMgDQpmb3IgYSBsb25nIHRpbWUgYW5kIHdoZXJlIGVhY2gg aXRlcmF0aW9uIGlzIG5vdCBkZXBlbmRlbnQgb24gYSBwcmV2aW91cyANCm9uZS4gVGhvc2Ug a2luZCBvZiB3b3JrbG9hZHMgYXJlIGFsc28gdXN1YWxseSBzdWl0YWJsZSBmb3IgR1BVcywg c28geW91IA0Kd2lsbCBmaW5kIHRoYXQgcmF0aGVyIGZldyBwZW9wbGUgdXNlIE9wZW5NUCwg YW5kIGluc3RlYWQgc3dpdGNoIHRvIA0KT3BlbkNMLCBWdWxrYW4sIG9yIG9uZSBvZiB0aGUg dmVuZG9yIEFQSXMuDQoNCkluIGFuIGFic3RyYWN0IHdheSwgbG9vcCBvcHRpbWl6YXRpb25z IHR1cm4gb25lIGxvb3AgaW50byBuZXN0ZWQgbG9vcHMgbGlrZQ0KDQogICAgIGZvcihpbnQg aSA9IDA7IGkgPCBjb3VudDsgKytpKQ0KDQpiZWNvbWVzDQoNCiAgICAgZm9yKGludCBsID0g MDsgbCA8IGNvdW50OyBsICs9IHVucm9sbCpiYXRjaCpucHJvYykNCiAgICAgICAgIC8vIHJ1 biB0aGlzIG9uICJucHJvYyIgZGlmZmVyZW50IENQVXMgaW4gcGFyYWxsZWwNCiAgICAgICAg IGZvcihpbnQgayA9IGw7IGsgPCBsICsgdW5yb2xsKmJhdGNoKm5wcm9jOyBhdG9taWNfYWRk KGssIA0KdW5yb2xsKmJhdGNoKSkNCiAgICAgICAgICAgICBmb3IoaW50IGogPSBrOyBqIDwg ayArIHVucm9sbCpiYXRjaDsgaiArPSB1bnJvbGwpDQogICAgICAgICAgICAgICAgIGZvcihp bnQgaSA9IGo7IGkgPCBqICsgdW5yb2xsOyArK2kpDQogICAgICAgICAgICAgICAgICAgICBp ZihpIDwgY291bnQpDQoNCndoZXJlIHdlIHNlbGVjdCAidW5yb2xsIiBzbyB0aGF0IHRoZSBu dW1iZXIgb2YgcmVnaXN0ZXJzIHVzZWQgaW4gdGhlIA0KaW5uZXIgbG9vcCwgdGltZXMgInVu cm9sbCIsIGlzIHNtYWxsZXIgdGhhbiB0aGUgbnVtYmVyIG9mIENQVSByZWdpc3RlcnMgDQph dmFpbGFibGUuIFRoYXQgaXMgaW5mb3JtYXRpb24gd2UgaGF2ZSBhdmFpbGFibGUgYXQgY29t cGlsZSB0aW1lLCBhbmQgDQplc3BlY2lhbGx5IGlmIHdlIGNhbiB1c2UgU0lNRCBpbnN0cnVj dGlvbnMgYW5kIHJlZ2lzdGVycywgdGhhdCBudW1iZXIgDQpjYW4gZWFzaWx5IGdvIHRvIDE2 IG9yIDMyLg0KDQoiY291bnQiIGFuZCAibnByb2MiIG9uIHRoZSBvdGhlciBoYW5kLCBhcmUg cnVudGltZSBwYXJhbWV0ZXJzLCBzbyB3ZSANCmNhbm5vdCBhbnRpY2lwYXRlIHRoZW0sIGFu ZCAiYmF0Y2giIGlzIGEgcGVyZm9ybWFuY2UgdHVuaW5nIHBhcmFtZXRlciANCihzbWFsbCBi YXRjaGVzIG1lYW4gbW9yZSBjYWxscyB0byBhdG9taWNfYWRkIHRvIHN5bmNocm9uaXplIHdp dGggb3RoZXIgDQpjb3JlcywgbGFyZ2UgYmF0Y2hlcyBtZWFuIHRoYXQgd29ya2xvYWRzIGNh biBnZXQgdW5iYWxhbmNlZCkuDQoNClRoZSBub3JtYWwgbG9vcCBvcHRpbWl6YXRpb25zIGFz c3VtZSB0aGF0ICJucHJvYyIgYW5kICJiYXRjaCIgYXJlIDEsIA0KYmVjYXVzZSBpdCBpcyBu b3Qga25vd24gaWYgImNvdW50IiBpcyBsYXJnZSBlbm91Z2ggdGhhdCBzdGFydGluZyANCmFk ZGl0aW9uYWwgdGhyZWFkcyBpcyB3b3J0aCBpdCwgYW5kICJiYXRjaCIgb25seSBiZWNvbWVz IHJlbGV2YW50IGlmIA0KdGhlcmUgaXMgcGFyYWxsZWwgcHJvY2Vzc2luZy4NCg0KSW4gcHJp bmNpcGxlLCB0aGVzZSB2YWx1ZXMgY291bGQgYmUgZGVyaXZlZCBmcm9tIHByb2ZpbGluZyBp bmZvcm1hdGlvbiwgDQp3aGlsZSBpbiBwcmFjdGljZSB0aGUgcmVtYWluaW5nIHVzZXJzIHRo YXQgaGF2ZSBub3Qgc3dpdGNoZWQgdG8gR1BVIA0KY29tcHV0YXRpb24gKGUuZy4gYmVjYXVz ZSB0aGVpciB3b3JrbG9hZCBpcyBHUFUgaG9zdGlsZSkgcHJlZmVyIHRvIA0KZWl0aGVyIHdy aXRlIGFuIGV4cGxpY2l0IGpvYiBzY2hlZHVsZXIsIG9yIHNwZWNpZnkgdGhlIHZhbHVlcyB2 aWEgT3Blbk1QLg0KDQpTbyB5ZXMsIHRoZXJlIGlzIHNvbWUgc3VwcG9ydCwgYnV0IHVubGlr ZSB1bnJvbGxpbmcgdGhlIGlubmVyIGxvb3AsIHRoZSANCm9wdGltYWwgY2hvaWNlIGZvciBk aXN0cmlidXRpbmcgd29ya2xvYWRzIGFjcm9zcyBtdWx0aXBsZSB0aHJlYWRzIA0KZGVwZW5k cyBvbiBydW50aW1lIHBhcmFtZXRlcnMsIHNvIGFkZGl0aW9uYWwgaW5mb3JtYXRpb24gaXMg bmVlZGVkIA0KYmVmb3JlIHRob3NlIG9wdGltaXphdGlvbnMgY2FuIGJlIGFwcGxpZWQsIGFu ZCB2ZXJ5IGZldyB3b3JrbG9hZHMgDQpxdWFsaWZ5LCBzbyB0aGlzIGlzIG5vdCBlbmFibGVk IGJ5IGRlZmF1bHQuDQoNCiAgICBTaW1vbg0K --------------iVCaCd5fTgShmoXumj9e6O30-- --------------cYB8BWvPD1j05PALWaGd2RYk Content-Type: application/pgp-signature; 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