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Re: [3.3/3.4/4.0/4.1] IA-64 FP register file corruption on unwind
- From: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- To: wilson at specifixinc dot com
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 5 Apr 05 16:27:42 EDT
- Subject: Re: [3.3/3.4/4.0/4.1] IA-64 FP register file corruption on unwind
You have to have about 18 or so FP variables live at the point where the
exception is thrown and caught, or else you won't be able to see the
breakage.
Integers and pointers can live in FP registers too on IA64. In the
particular case that spawned the PR, it was in fact a pointer that got
clobbered.