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* [Bug target/103421] New: -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option
@ 2021-11-25 7:52 pinskia at gcc dot gnu.org
2021-11-25 7:53 ` [Bug target/103421] " pinskia at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-25 7:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103421
Bug ID: 103421
Summary: -march=bogus12323123423452345 -march=skylake-avx512 is
accepted as a command line option
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: diagnostic
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: pinskia at gcc dot gnu.org
Target Milestone: ---
Target: x86_64
While looking into figuring out the best way of fixing an aarch64 issue I
decided to test what x86_64 does and lone and behold, x86_64 also allow bogus
values for -march too.
gcc -march=bogus12323123423452345 -march=skylake-avx512
gives no warning or error message.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug target/103421] -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option 2021-11-25 7:52 [Bug target/103421] New: -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option pinskia at gcc dot gnu.org @ 2021-11-25 7:53 ` pinskia at gcc dot gnu.org 2021-11-25 14:00 ` rguenth at gcc dot gnu.org 2021-12-29 6:32 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-11-25 7:53 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103421 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Only the last march is passed down to cc1 which does the verification of the option :). ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/103421] -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option 2021-11-25 7:52 [Bug target/103421] New: -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option pinskia at gcc dot gnu.org 2021-11-25 7:53 ` [Bug target/103421] " pinskia at gcc dot gnu.org @ 2021-11-25 14:00 ` rguenth at gcc dot gnu.org 2021-12-29 6:32 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2021-11-25 14:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103421 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- I think that makes sense in some way, not sure we want -march-for-check=bogus12323123423452345. Also consider -march=xyz -moption-not-valid-for-xyz -march=but-for-this ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/103421] -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option 2021-11-25 7:52 [Bug target/103421] New: -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option pinskia at gcc dot gnu.org 2021-11-25 7:53 ` [Bug target/103421] " pinskia at gcc dot gnu.org 2021-11-25 14:00 ` rguenth at gcc dot gnu.org @ 2021-12-29 6:32 ` pinskia at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: pinskia at gcc dot gnu.org @ 2021-12-29 6:32 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103421 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |DUPLICATE --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is actually a dup of bug 64534. *** This bug has been marked as a duplicate of bug 64534 *** ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-12-29 6:32 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2021-11-25 7:52 [Bug target/103421] New: -march=bogus12323123423452345 -march=skylake-avx512 is accepted as a command line option pinskia at gcc dot gnu.org 2021-11-25 7:53 ` [Bug target/103421] " pinskia at gcc dot gnu.org 2021-11-25 14:00 ` rguenth at gcc dot gnu.org 2021-12-29 6:32 ` pinskia at gcc dot gnu.org
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