Richard, It sure looked a label but I had code that would bail out on a label before it ever got where I was seeing a problem.
I finally printed out the gimple code and it was a GIMPLE_DEBUG! When I bailed out on debugs my pass worked again. Of course expanding debugging info failed in cfgexpand. It looks like "-g" and my stuff real don't play nice together. Any thoughts on what to do? I'm thing about simply disabling my stuff if "-g" is specified. This is not the macho thing to do but anything is likely a very deep rathole. Thanks, Gary ________________________________ From: Richard Biener <richard.guent...@gmail.com> Sent: Thursday, August 26, 2021 12:45 AM To: Gary Oblock <g...@amperecomputing.com> Cc: gcc@gcc.gnu.org <gcc@gcc.gnu.org> Subject: Re: What is this GIMPLE? [EXTERNAL EMAIL NOTICE: This email originated from an external sender. Please be mindful of safe email handling and proprietary information protection practices.] On Wed, Aug 25, 2021 at 7:30 AM Gary Oblock via Gcc <gcc@gcc.gnu.org> wrote: > > I print out a bit of GIMPLE for a program and it looks like this: > > <bb 3> [local count: 13634385]: > # a_1 = PHI <a_320(D)(2), a_318(118)> > # n_11 = PHI <n_321(D)(2), n_319(118)> > loop: > # DEBUG n => n_11 > # DEBUG a => a_1 > _2 = (long unsigned int) a_1; > _3 = _2 & 7; > _347 = _3 != 0; > > That bit that says "loop:" isn't a GIMPLE_LABEL and > it has operands, the first of which is "size_t n = size_t;" > and I find that a bit odd... I'm sure it is a GIMPLE_LABEL. > What is this thing and what does it do? Note, I'm trying to > parse and transform some GIMPLE and this is confusing my > code (and me.) I looked in the internals doc and grepped the > code but I'm still in the dark. > > Note,I'd like be able to detect and ignore this if it's just informational. > > Thanks, > > Gary > > Gary > > > CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is > for the sole use of the intended recipient(s) and contains information that > is confidential and proprietary to Ampere Computing or its subsidiaries. It > is to be used solely for the purpose of furthering the parties' business > relationship. Any unauthorized review, copying, or distribution of this email > (or any attachments thereto) is strictly prohibited. If you are not the > intended recipient, please contact the sender immediately and permanently > delete the original and any copies of this email and any attachments thereto.
