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On Tue, Oct 20, 2009 at 12:08 PM, Dan Gohman <gohman at apple.com> wrote: > Unfortunately, yes.  See PR4542.  Progress has been made recently > though -- the optimizers are now ready.  The main things left to do > is to update the documentation and update the testsuite to account > for the change in the meaning of a module w...

On Aug 24, 2012, at 10:50 PM, Hal Finkel <hfinkel at anl.gov> wrote: > On Wed, 22 Aug 2012 13:15:30 -0700 > Dan Gohman <gohman at apple.com> wrote: > >> call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %1, i64 16, i32 8, >> i1 false), !struct.assignment !4 […] > > I think that it would make more sense to name this !struct.tbaa -- it > seems logically similar to existing TBAA metadat...

On Aug 27, 2012, at 12:58 PM, Hal Finkel <hfinkel at anl.gov> wrote: > On Mon, 27 Aug 2012 11:41:47 -0700 > Dan Gohman <gohman at apple.com> wrote: >> On Aug 24, 2012, at 10:50 PM, Hal Finkel <hfinkel at anl.gov> wrote: >> >>> On Wed, 22 Aug 2012 13:15:30 -0700 >>> Dan Gohman <gohman at apple.com> wrote: >>> >>>> call void @llvm.memcpy.p0i8.p0i8...

On Dec 1, 2011, at 9:09 AM, Chris Lattner wrote: > > On Dec 1, 2011, at 8:46 AM, Dan Gohman wrote: > >> >> On Nov 30, 2011, at 10:49 PM, Chris Lattner wrote: >> >>> >>> On Nov 29, 2011, at 3:21 PM, Dan Gohman wrote: >>> >>>> >>>> A natural reaction to this problem is to think that LLVM IR is so nice >>>...

On Mon, 27 Aug 2012 11:41:47 -0700 Dan Gohman <gohman at apple.com> wrote: > On Aug 24, 2012, at 10:50 PM, Hal Finkel <hfinkel at anl.gov> wrote: > > > On Wed, 22 Aug 2012 13:15:30 -0700 > > Dan Gohman <gohman at apple.com> wrote: > > > >> call void @llvm.memcpy.p0i8.p0i8.i64(i8* %0, i8* %...

On Mon, Dec 5, 2011 at 11:01 PM, Dan Gohman <gohman at apple.com> wrote: > On Dec 5, 2011, at 6:04 PM, Daniel Berlin wrote: >> >> Yet, aa-eval still says otherwise. > > The problem is with aa-eval. It collects all the pointer values in a > function, and then just makes a bunch of raw pointer queries, rather than...

On Thu, Dec 1, 2011 at 9:37 AM, David A. Greene <greened at obbligato.org>wrote: > Dan Gohman <gohman at apple.com> writes: > > > Prohibiting poison values from propogating through memory would mean > > that the reg2mem pass would no longer be a semantics-preserving pass. > > Or it means you couldn't demote those values. If reg2mem is constructing spill slot...

On Aug 27, 2012, at 10:15 PM, Chris Lattner <clattner at apple.com> wrote: > On Aug 27, 2012, at 12:58 PM, Hal Finkel <hfinkel at anl.gov> wrote: >> On Mon, 27 Aug 2012 11:41:47 -0700 >> Dan Gohman <gohman at apple.com> wrote: >>> On Aug 24, 2012, at 10:50 PM, Hal Finkel <hfinkel at anl.gov> wrote: >>> >>>> On Wed, 22 Aug 2012 13:15:30 -0700 >>>> Dan Gohman <gohman at apple.com> wrote: >>>> >>>>> call voi...

...tor class. I am just seeing this UnionType as a type of struct where all the fields have the same offset and the UnionType itself is as large as the largest member. I would speculate that otherwise it behaves pretty much like a StructType- but then again I am new to LLVM. --- On Sun, 8/2/09, Dan Gohman <gohman at apple.com> wrote: > From: Dan Gohman <gohman at apple.com> > Subject: Re: [LLVMdev] Union type efforts and ComputeLinearIndex > To: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu> > Date: Sunday, August 2, 2009, 12:05 PM > Hello, >...

On 20 January 2011 11:23, Dan Gohman <gohman at apple.com> wrote: > > On Jan 19, 2011, at 2:03 PM, Nick Lewycky wrote: > > > On 19 January 2011 13:01, Dan Gohman <gohman at apple.com> wrote: > > > > On Jan 18, 2011, at 12:32 AM, Nick Lewycky wrote: > > > > > Hi, > > > &gt...

On Dec 6, 2011, at 10:07 AM, Paul Robinson wrote: > On Tue, Dec 6, 2011 at 9:06 AM, David A. Greene <greened at obbligato.org> wrote: > Dan Gohman <gohman at apple.com> writes: > > > For example, suppose we want to convert the && to &, and the ?: to a > > select, in this code: > > > > if (a && (b ? (c + d) : e)) { > > > > because we have a CPU architecture with poor branch pred...

On Oct 20, 2009, at 10:13 AM, Kenneth Uildriks wrote: > On Tue, Oct 20, 2009 at 12:08 PM, Dan Gohman <gohman at apple.com> wrote: >> Unfortunately, yes. See PR4542. Progress has been made recently >> though -- the optimizers are now ready. The main things left to do >> is to update the documentation and update the testsuite to account >> for the change in the meani...

On Dec 5, 2011, at 9:32 PM, Daniel Berlin wrote: > On Mon, Dec 5, 2011 at 11:01 PM, Dan Gohman <gohman at apple.com> wrote: >> On Dec 5, 2011, at 6:04 PM, Daniel Berlin wrote: >>> >>> Yet, aa-eval still says otherwise. >> >> The problem is with aa-eval. It collects all the pointer values in a >> function, and then just makes a bunch of raw po...

On Dec 5, 2011, at 11:55 AM, Paul Robinson wrote: > > On Thu, Dec 1, 2011 at 9:37 AM, David A. Greene <greened at obbligato.org> wrote: > Dan Gohman <gohman at apple.com> writes: > > > Prohibiting poison values from propogating through memory would mean > > that the reg2mem pass would no longer be a semantics-preserving pass. > > Or it means you couldn't demote those values. > > If reg2mem is constructing...

On Dec 5, 2011, at 5:50 PM, me22 wrote: > On Thu, Dec 1, 2011 at 09:23, Dan Gohman <gohman at apple.com> wrote: >> >> int a = INT_MAX, b = 1; >> long c = (long)(a + b); >> >> What is the value of c, on an LP64 target? >> >> If a and b are promoted to 64-bit, c is 0x0000000080000000. >> >> In a world where signed add...

On 19 January 2011 13:01, Dan Gohman <gohman at apple.com> wrote: > > On Jan 18, 2011, at 12:32 AM, Nick Lewycky wrote: > > > Hi, > > > > I tracked down a bug in indvars where we weren't updating SCEV properly. > The attached patch shows the fix to this bug with a testcase, but it also > cau...

On Jan 15, 2010, at 1:38 PM, David Greene wrote: > On Friday 15 January 2010 15:09, Dan Gohman wrote: > >>> Sound good? reimplement >> >> Unlimited-recursion dumping is what the existing dump routines >> already do, so it's a little odd to have a flag to allow these > > Which existing dump routines are you referring to? dumpr(). I guess it wasn'...

On Jan 27, 2012, at 11:20 AM, Devang Patel wrote: > > On Jan 26, 2012, at 2:10 PM, Dan Gohman wrote: > >> On Jan 26, 2012, at 12:54 PM, Devang Patel wrote: >>> >>> On Jan 26, 2012, at 11:15 AM, Dan Gohman wrote: >>> >>>> or what optimizers must do to preserve it. >>> >>> The number one reason behind metadata is to have a...

I'm removing old targets that no longer appear actively maintained, to reduce the burden for target-independent codegen maintenance. Does anyone object to the removal of the Alpha backend? Dan

(If this thread is becoming tiresome, let me know. This newbie is trying to understand some of what's going on; clearly you've thought about it way more than I have, and I can understand if you want to stop thinking about it!) On Mon, Dec 5, 2011 at 2:22 PM, Dan Gohman <gohman at apple.com> wrote: > On Dec 5, 2011, at 11:55 AM, Paul Robinson wrote: > > > > On Thu, Dec 1, 2011 at 9:37 AM, David A. Greene <greened at obbligato.org> > wrote: > > Dan Gohman <gohman at apple.com> writes: > > > > > Prohibiting p...