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...the stack trace symbols using debug informations. - When using ubsan to instrument a dynamic library, trying to load this library will result in missing "__ubsan_xxx" symbols error. Is someone working on asan/ubsan integration on OS X actually ? Le 5 janv. 2013 à 03:37, Meador Inge <meadori at codesourcery.com> a écrit : > Some more information … > > On Jan 4, 2013, at 6:56 PM, Meador Inge wrote: > >> I am building LLVM on OS X 10.7.5 with cmake. Under this configuration some ASan and UBSan tests >> are failing: >> >> $ make check-ubsan >...

...s get confused when creating the needed build host tools. For example, building and configuring like: CC_FOR_BUILD='i686-pc-linux-gnu-gcc' CXX_FOR_BUILD='i686-pc-linux-gnu-g++' CXX='i686-mingw32-g++' CC='i686-mingw32-gcc' LD='i686-mingw32-ld' /scratch /meadori/llvm-trunk/src/trunk/configure --host=i686-mingw32 CC_FOR_BUILD='i686-pc-linux-gnu-gcc' CXX_FOR_BUILD='i686-pc-linux-gnu-g++' CXX='i686-mingw32-g++' CC='i686-mingw32-gcc' LD='i686-mingw32-ld' make causes the following build break: checking whether th...

...UndefinedBehaviorSanitizer :: TypeCheck/misaligned.cpp > UndefinedBehaviorSanitizer :: TypeCheck/null.cpp > > Expected Passes : 10 > Expected Failures : 1 > Unexpected Failures: 11 These tests fail with the following assertion: ==40116== Sanitizer CHECK failed: /Users/meadori/Code/src/llvm/projects/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_mac.cc:26 ((0 && "unimplemented")) != (0) (0, 0) Should these tests be running? StartSymbolizerSubprocess and GetListOfModules are not implemented for OS X. > $ make check-asan > > … > &g...

...that the code sequence we generate requires two registers live instead of one. In high regpressure loops, were probably losing performance. James On Wed, 11 Nov 2015 at 21:09, Tim Northover via llvm-dev < llvm-dev at lists.llvm.org> wrote: > On 11 November 2015 at 11:57, Meador Inge <meadori at gmail.com> wrote: > > Why wouldn't it consider the number of uses in any operation? The > > "expected" code is easy to get by checking the number of uses. This > > may be desirable on some micro-architectures depending on the cost of > > the various loa...

I am building LLVM on OS X 10.7.5 with cmake. Under this configuration some ASan and UBSan tests are failing: $ make check-ubsan … ******************** Testing Time: 2.36s ******************** Failing Tests (11): UndefinedBehaviorSanitizer :: Float/cast-overflow.cpp UndefinedBehaviorSanitizer :: Integer/add-overflow.cpp UndefinedBehaviorSanitizer :: Integer/div-zero.cpp

On 12 November 2012 15:55, Meador Inge <meadori at codesourcery.com> wrote: > Another point to address is whether there can be more than one owner in a > particular area. There might be more than one code expert per area, which can be referenced by the code owner, but I wouldn't have more than one owner. Owning part of the code me...

On Aug 3, 2012, at 12:56 PM, Meador Inge <meadori at codesourcery.com> wrote: >>> An option for enabling/disabling library call simplification in `InstCombiner` >>> will be available. For backwards compatibility perhaps it should remain >>> '-simplify-libcalls'. The `NumSimplified` and `NumAnnotated` statist...

Hi, I was looking at some AArch64 benchmarks and noticed some simple cases where addresses are being folded into the address mode computations and was curious as to why. In particular, consider the following simple example: void f2(unsigned long *x, unsigned long c) { x[c] *= 2; } This generates: lsl x8, x1, #3 ldr x9, [x0, x8] lsl x9, x9, #1 str x9, [x0, x8] Given the two

On 11/12/2012 09:35 AM, Duncan Sands wrote: > Hi, > > On 12/11/12 15:11, Meador Inge wrote: >> On 11/11/2012 11:58 PM, Chris Lattner wrote: >> >>>> Is there a particular sub-system size that makes sense to mark as owned? I have been >>>> reworking the library call simplification infrastructure recently and will be happy >>>> to sign up as

On Thu, Jul 23, 2015 at 9:53 AM, Sky Flyer <skylake007 at googlemail.com> wrote: > Hello all, > > I don't find anything helping me understand the llvm bang operator. In the > llvm TableGen language reference, it only says: > > 'TableGen also has “bang operators” which have a wide variety of meanings:' > > I would be very thankful if someone can explain it

...bols error. > > Is someone working on asan/ubsan integration on OS X actually ? > Alex (in CC) is working on asan for OS X. I think he can handle ubsan as well. (but give us a few days, we are all out of office due to holidays). --kcc > > Le 5 janv. 2013 à 03:37, Meador Inge <meadori at codesourcery.com> a écrit : > > > Some more information … > > > > On Jan 4, 2013, at 6:56 PM, Meador Inge wrote: > > > >> I am building LLVM on OS X 10.7.5 with cmake. Under this configuration > some ASan and UBSan tests > >> are failing: >...

Hello all, I don't find anything helping me understand the llvm bang operator. In the llvm TableGen language reference, it only says: 'TableGen also has “bang operators” which have a wide variety of meanings: *'* I would be very thankful if someone can explain it to me. e.g. what does "!strconcat" or "!if" mean? Cheers ES -------------- next part --------------

On 08/02/2012 11:11 AM, Chris Lattner wrote: >> A new self-contained `LibCallSimplifier` class will be created. An instance >> of the class will be instantiated when running the `InstCombiner` pass. It's >> folding functionality will be invoked from `InstCombiner::tryOptimizeCall` and >> the implementation will be table-driven like `SimplifyLibCalls`. All of the

On Nov 20, 2012, at 11:03 AM, Meador Inge <meadori at codesourcery.com> wrote: > On Nov 13, 2012, at 12:20 AM, Bill Wendling wrote: > >> IR Changes >> ---------- >> >> The attributes will be specified within the IR. This allows us to generate code >> that the user wants. This also has the advantage that it...

On Tue, Nov 20, 2012 at 11:03 AM, Meador Inge <meadori at codesourcery.com> wrote: > > On Nov 13, 2012, at 12:20 AM, Bill Wendling wrote: > >> IR Changes >> ---------- >> >> The attributes will be specified within the IR. This allows us to generate code >> that the user wants. This also has the advantage that i...

On Tue, Feb 21, 2012 at 4:51 AM, Jay Foad <jay.foad at gmail.com> wrote: > All, > > This buildbot is getting lots of assertion failures in the test suite. > They were probably caused by my commit: > > ------------------------------------------------------------------------ > r151049 | foad | 2012-02-21 09:25:52 +0000 (Tue, 21 Feb 2012) | 6 lines > Changed paths: >

On Nov 11, 2012, at 5:13 PM, Meador Inge <meadori at codesourcery.com> wrote: > On Nov 11, 2012, at 12:44 AM, Chris Lattner wrote: > >> >> On Nov 10, 2012, at 10:43 AM, Joe Abbey <jabbey at arxan.com> wrote: >> >>> Hello, >>> >>> Chris's "keynote" at the LLVM Developers...

On Jan 6, 2013, at 10:54 AM, Kostya Serebryany wrote: > Alex (in CC) is working on asan for OS X. I think he can handle ubsan as well. > (but give us a few days, we are all out of office due to holidays). OK, thanks. If there are no objections, then I can go ahead and commit the attached test case fix I mentioned before. Adding ALWAYS_INLINE to 'free_common' in r158885 changed

...res on my 10.8 machine (trying that on a 10.7 one now) I'll look into making the in-process symbolizer work on OSX (which should fix some of the ubsan failures), but we do not need it in production currently, so I'm not sure when I get to it. On Mon, Jan 7, 2013 at 7:48 PM, Meador Inge <meadori at codesourcery.com> wrote: > > On Jan 6, 2013, at 10:54 AM, Kostya Serebryany wrote: > >> Alex (in CC) is working on asan for OS X. I think he can handle ubsan as well. >> (but give us a few days, we are all out of office due to holidays). > > OK, thanks. If there ar...

On 03/18/2014 01:51 PM, Eric Christopher wrote: > I missed it coming across the first time (and that's a long time ago). > I haven't had a chance to look at it and the archives don't have the > actual patch. Can you send it? Sure. See attached. This is the same as the patch provided by Ekaterina Sanina in the thread I linked. I can build fine with this applied for the