[Bug runtime/6028] ia64_fetch_register is very slow

[mhiramat at redhat dot com]

------- Additional Comments From mhiramat at redhat dot com  2008-04-03 21:40 -------
Created an attachment (id=2350)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=2350&action=view)
ia64 fast(cached) fetch_register() patch

Introduce cached ia64_fetch_register() code.
- (tapsets.cxx) add context.raddr for caching unwound address
- (regs-ia64.c) don't unwind stack if it has already been unwound.

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http://sourceware.org/bugzilla/show_bug.cgi?id=6028

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