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Hello, I have a code similar to the following: program test integer i, j, N real B(10) call bar(N, 8) N = N+1 do i = 1, N B(i) = (i+5)/(i+3) enddo j = N/2 N = N+7 call IMPORTANT_F(B, N, i, j) end program and I am trying to use dependence

I was using 2.4, but I built 2.5 and it behaves the same. I will test the SVN head too. On Mar 11, 2009, at 10:41 PM, Nick Lewycky wrote: > Anthony Danalis wrote: >> Hello, >> >> I'm writing a pass that adds a function prototype to the module >> during >> doInitialization() and stores the pointer in a global variable. If I >> run opt with "-O1" or less, everything works fine. However, If I >&...

On Apr 13, 2009, at 3:32 PM, Eli Friedman wrote: > On Mon, Apr 13, 2009 at 9:06 AM, Anthony Danalis <adanalis at eecs.utk.edu > > wrote: >> How can I use MemoryDependenceAnalysis (or any other analysis for >> that >> matter) to gather that the instructions >> j = N/2 (store i32 %11, i32* %j, align 4) >> and >> N = N+7 (store i32 %12, i32* %n, ali...

...ype: application/octet-stream Size: 6384 bytes Desc: not available URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20090413/779e1ae8/attachment.obj> -------------- next part -------------- On Apr 13, 2009, at 2:21 PM, Chris Lattner wrote: > On Apr 13, 2009, at 9:06 AM, Anthony Danalis wrote: >> Hello, >> >> I have a code similar to the following: > > Hi Anthony, > > Can you please attach the .bc file for this? > > -Chris > >> >> >> program test >> integer i, j, N >> real B(10) >...

On Apr 13, 2009, at 12:01 PM, Anthony Danalis wrote: > I'm attaching the .bc file. Note that my analysis pass is invoked > after "-O1" and that's why the IR I included in the original email > is optimized. Hi Anthony, Sorry for the delay, things have been crazy lately. The MemDep API assumes that you will c...

On Apr 25, 2009, at 5:05 PM, Chris Lattner wrote: > > On Apr 13, 2009, at 12:01 PM, Anthony Danalis wrote: > >> I'm attaching the .bc file. Note that my analysis pass is invoked >> after "-O1" and that's why the IR I included in the original email >> is optimized. > > Hi Anthony, > > Sorry for the delay, things have been crazy lately. > >...

...er they appear) so that this field does not exist anymore? In other words, is it safe to do an external, trivial mapping from struct name+offset to field name, or are there optimizations that would break it? thanks, Anthony On Mar 26, 2009, at 6:25 PM, Luke Dalessandro wrote: > Anthony Danalis wrote: >> Hello, >> >> I'm trying to construct a string like "a[1][x].y" in an optimization >> pass by digging deeper and deeper into a GetElementPtrInst. I can >> successfully deal with the array/pointer part, but when it comes to >> the structur...

On Mar 11, 2009, at 10:53 AM, Jon Harrop wrote: > On Wednesday 11 March 2009 14:19:28 Vikram S. Adve wrote: >> In principle, having a Wiki like this would be valuable. In >> practice, >> I think there will need to be some sanity checking to make sure >> incorrect or misleading information is not added to it. > > Yes, I think a Wiki would be extremely valuable.

Hello, I'm writing a pass that adds a function prototype to the module during doInitialization() and stores the pointer in a global variable. If I run opt with "-O1" or less, everything works fine. However, If I call opt with "-O2" or "-O3" then as soon as runOnFunction() is called, the pointer seems to be NULL. Here is a code that shows the problem:

...; c++ parser, and understand more of the front end internals. I would > avoid this unless you feel like you want pragmas that have some sort of > lexical semantics, and don't want to force people to use BEGIN and END > macros. > > Hope this is helpful, > Luke > > Anthony Danalis wrote: >> Hello >> >> Is there a "generic" pragma that is supported by LLVM and is visible >> by optimization passes?  or any other way for a programmer to pass >> meta-data information to the compiler? >> I am writing an analysis pass that could benef...

Anthony Danalis wrote: > Hello, > > I'm writing a pass that adds a function prototype to the module during > doInitialization() and stores the pointer in a global variable. If I > run opt with "-O1" or less, everything works fine. However, If I call > opt with "-O2&qu...

On Mon, Apr 13, 2009 at 9:06 AM, Anthony Danalis <adanalis at eecs.utk.edu> wrote: > How can I use MemoryDependenceAnalysis (or any other analysis for that > matter) to gather that the instructions > j = N/2  (store i32 %11, i32* %j, align 4) > and > N = N+7  (store i32 %12, i32* %n, align 4) > are the ones that define th...

...ernals. I would >> avoid this unless you feel like you want pragmas that have some >> sort of >> lexical semantics, and don't want to force people to use BEGIN and >> END >> macros. >> >> Hope this is helpful, >> Luke >> >> Anthony Danalis wrote: >>> Hello >>> >>> Is there a "generic" pragma that is supported by LLVM and is visible >>> by optimization passes? or any other way for a programmer to pass >>> meta-data information to the compiler? >>> I am writing an analys...

...ee. Being a newbie myself, I can relate to what problems someone new to llvm would have.While I think most of the stuff I have tried will be useful, I wouldn't be entirely sure if its the best way to go about it. Thanks Nipun Arora Columbia University On Wed, Mar 11, 2009 at 11:01 AM, Anthony Danalis <adanalis at eecs.utk.edu>wrote: > > On Mar 11, 2009, at 10:53 AM, Jon Harrop wrote: > > > On Wednesday 11 March 2009 14:19:28 Vikram S. Adve wrote: > >> In principle, having a Wiki like this would be valuable. In > >> practice, > >> I think there...

On Apr 13, 2009, at 9:06 AM, Anthony Danalis wrote: > Hello, > > I have a code similar to the following: Hi Anthony, Can you please attach the .bc file for this? -Chris > > > program test > integer i, j, N > real B(10) > > call bar(N, 8) > N = N+1 &g...

On Mar 28, 2009, at 4:39 AM, Anthony Danalis wrote: > On Mar 27, 2009, at 9:15 PM, Dan Gohman wrote: >> >> On Mar 26, 2009, at 8:28 AM, Mihai Balint wrote: >>> This summer however, I plan to create an "optimization" that >>> automatically fixes memory leaks in programs - obviously only those >&gt...

Anthony Danalis wrote: > Hello, > > I'm trying to construct a string like "a[1][x].y" in an optimization > pass by digging deeper and deeper into a GetElementPtrInst. I can > successfully deal with the array/pointer part, but when it comes to > the structure field name &quo...

Hello, I'm trying to construct a string like "a[1][x].y" in an optimization pass by digging deeper and deeper into a GetElementPtrInst. I can successfully deal with the array/pointer part, but when it comes to the structure field name "y", I cannot figure out how to get anything but the index into the structure. Is there a way to do that, or is this information

On Mar 28, 2009, at 1:34 AM, Mihai Balint wrote: > On Mar 28, 2009, at 4:39 AM, Anthony Danalis wrote: >> On Mar 27, 2009, at 9:15 PM, Dan Gohman wrote: >>> >>> On Mar 26, 2009, at 8:28 AM, Mihai Balint wrote: >>>> This summer however, I plan to create an "optimization" that >>>> automatically fixes memory leaks in programs - obviousl...

On Mar 27, 2009, at 9:15 PM, Dan Gohman wrote: > > On Mar 26, 2009, at 8:28 AM, Mihai Balint wrote: >> >> This summer however, I plan to create an "optimization" that >> automatically fixes memory leaks in programs - obviously only those >> that can be fixed with the available information, for example: > > Hello, > > This doesn't sound