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Re: [Bug middle-end/15855] [3.4/4.0 Regression] g++ crash with -O2 and -O3 on input file
On Wed, Dec 01, 2004 at 09:56:51PM -0700, Jeffrey A Law wrote:
> * tree.h (save_eptr, save_filt): Now file scoped statics.
> (honor_protect_cleanup_actions): Only create save_eptr and
> save_filt if they do not already exist.
> (lower_eh_constructs): Wipe all knowledge of save_eptr and
> save_filt before returning.
As I just discovered while working through the existance of these
saves for DannyB, this transformation is incorrect and indeed
invalidates the entire reason for this save/restore.
The best that we could do is a stack of variable pairs so that
nested eh regions are handled properly.
Sorry for my earlier misdiagnosis.