public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug c/96606] New: Shift operator not working correctly
@ 2020-08-13 20:44 gcc-bugzilla at ryuar dot in
2020-08-13 20:46 ` [Bug c/96606] " gcc-bugzilla at ryuar dot in
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: gcc-bugzilla at ryuar dot in @ 2020-08-13 20:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96606
Bug ID: 96606
Summary: Shift operator not working correctly
Product: gcc
Version: 10.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: gcc-bugzilla at ryuar dot in
Target Milestone: ---
Created attachment 49058
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49058&action=edit
source code.
Hello.
The shift operator doesn't work correctly in some situations.
Please check the attached file.
after compiling with `gcc KISA_SEED_ECB.c`, The output below is shown.
9292920F 73870FC4 05D1ED04 182F3919
A = 9292920F >> 8 = C4929292
B = 73870FC4 >> 8 = 0F73870F
I think the correct operation result is
9292920F 73870FC4 05D1ED04 182F3919
A = 9292920F >> 8 = 00929292
B = 73870FC4 >> 8 = 0073870F
There seems to be a problem between line 353 and line 453.
Please let me know if you think I'm mistaken.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/96606] Shift operator not working correctly
2020-08-13 20:44 [Bug c/96606] New: Shift operator not working correctly gcc-bugzilla at ryuar dot in
@ 2020-08-13 20:46 ` gcc-bugzilla at ryuar dot in
2020-08-14 5:29 ` gcc-bugzilla at ryuar dot in
2020-08-17 16:49 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: gcc-bugzilla at ryuar dot in @ 2020-08-13 20:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96606
--- Comment #1 from RyuaNerin <gcc-bugzilla at ryuar dot in> ---
Created attachment 49059
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49059&action=edit
msvc vs gcc
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/96606] Shift operator not working correctly
2020-08-13 20:44 [Bug c/96606] New: Shift operator not working correctly gcc-bugzilla at ryuar dot in
2020-08-13 20:46 ` [Bug c/96606] " gcc-bugzilla at ryuar dot in
@ 2020-08-14 5:29 ` gcc-bugzilla at ryuar dot in
2020-08-17 16:49 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: gcc-bugzilla at ryuar dot in @ 2020-08-14 5:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96606
RyuaNerin <gcc-bugzilla at ryuar dot in> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |INVALID
--- Comment #2 from RyuaNerin <gcc-bugzilla at ryuar dot in> ---
Unsigned long int is 64bit integer in x64.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug c/96606] Shift operator not working correctly
2020-08-13 20:44 [Bug c/96606] New: Shift operator not working correctly gcc-bugzilla at ryuar dot in
2020-08-13 20:46 ` [Bug c/96606] " gcc-bugzilla at ryuar dot in
2020-08-14 5:29 ` gcc-bugzilla at ryuar dot in
@ 2020-08-17 16:49 ` pinskia at gcc dot gnu.org
2 siblings, 0 replies; 4+ messages in thread
From: pinskia at gcc dot gnu.org @ 2020-08-17 16:49 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96606
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to RyuaNerin from comment #2)
> Unsigned long int is 64bit integer in x64.
Or rather unsigned long on x86 Linux is 64 bits while on x86 Windows, it is
32bits.
There is no bug with GCC here still.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-08-17 16:49 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-08-13 20:44 [Bug c/96606] New: Shift operator not working correctly gcc-bugzilla at ryuar dot in
2020-08-13 20:46 ` [Bug c/96606] " gcc-bugzilla at ryuar dot in
2020-08-14 5:29 ` gcc-bugzilla at ryuar dot in
2020-08-17 16:49 ` pinskia at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).