[Bug target/6526] [SH4] sdivsi3_i4 can clobber xd0/xd2

["marcus@mc.pp.se" <gcc-bugzilla@gcc.gnu.org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=6526



------- Additional Comments From marcus@mc.pp.se  2003-06-02 12:25 -------
Subject: Re:  [SH4] sdivsi3_i4 can clobber xd0/xd2


"joern.rennecke@superh.com" <gcc-bugzilla@gcc.gnu.org> writes:

> If you want to change fpscr so that the change is effecitve and preserved
> in and across function calls, you should use __set_fpscr.
> The new value for fpscr is to be passed in r4, and it is put in fpscr,
> and with appropriate modifications to the PR and SZ bit into the two
> locations of __fpscr_values.

Sorry, but this isn't really helpful.  First, the current libgcc
functions do _not_ use __fpscr_values, so using __set_fpscr won't help
anyway (as you can see in the test case, which _does_ use __set_fpscr
but still fails).  Second, I need to use frchg for preformance reasons.


  // Marcus






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