http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
Summary: Spinlock with atomic primitives fails
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassig.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #1 from Dan Weber 2010-11-03 18:11:11
UTC ---
Created attachment 22260
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22260
Spinlock Test g++ ii output
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #2 from Dan Weber 2010-11-03 18:11:37
UTC ---
Created attachment 22261
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22261
G++ Assembler Output atomic test
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #3 from Dan Weber 2010-11-03 18:12:01
UTC ---
Created attachment 22262
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22262
Spinlock Test G++ object file
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #4 from Dan Weber 2010-11-03 18:12:58
UTC ---
Created attachment 22263
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22263
TBB based spinlock (working)
Compiler with -ltbb keep -fopenmp, but -std=c++0x is unnecessary
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #5 from Dan Weber 2010-11-03 18:16:28
UTC ---
Probably requires testing using a machine that has multiple cores :)
My Machine is an INtel i7 720qm, so it has 4 cores + 4 hyperthreads fyi.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
--- Comment #6 from Dan Weber 2010-11-03 18:19:04
UTC ---
Created attachment 22264
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22264
TBB Spinlock assembler (includes compare and swap and fetch and store ops
inline)
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46294
Dan Weber changed:
What|Removed |Added
Status|UNCONFIRMED |RESOLVED
Resolution|
