Ben Simhon, Oren via llvm-dev
2017-Nov-06 14:03 UTC
[llvm-dev] Target Specific LTO Machine Pass
Hi, I want to add Target Specific MachineFunctionPass so that it will run during Link Time Optimization. The pass is currently running in non-LTO compilation (added in addPreEmitPass). What do I need to do in order to run my pass also during LTO? Thanks, Oren --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171106/b87cd276/attachment.html>
Teresa Johnson via llvm-dev
2017-Nov-06 14:51 UTC
[llvm-dev] Target Specific LTO Machine Pass
When do you want it to run? Machine specific passes are invoked during codegen. It looks like anything you add via addPreEmitPass should get invoked during LTO codegen (via TargetMachine::addPassesToEmitFile which eventually calls that through some other layers). Are you sure it isn't being invoked during LTO codegen? Teresa On Mon, Nov 6, 2017 at 6:03 AM, Ben Simhon, Oren via llvm-dev < llvm-dev at lists.llvm.org> wrote:> Hi, > > > > I want to add Target Specific MachineFunctionPass so that it will run > during Link Time Optimization. > > The pass is currently running in non-LTO compilation (added in > addPreEmitPass). > > What do I need to do in order to run my pass also during LTO? > > > > Thanks, > > Oren > > > > --------------------------------------------------------------------- > Intel Israel (74) Limited > > This e-mail and any attachments may contain confidential material for > the sole use of the intended recipient(s). Any review or distribution > by others is strictly prohibited. If you are not the intended > recipient, please contact the sender and delete all copies. > > _______________________________________________ > LLVM Developers mailing list > llvm-dev at lists.llvm.org > http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev > >-- Teresa Johnson | Software Engineer | tejohnson at google.com | 408-460-2413 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171106/a31849ac/attachment.html>
Ben Simhon, Oren via llvm-dev
2017-Nov-06 17:00 UTC
[llvm-dev] Target Specific LTO Machine Pass
It looks like you are correct. Some Target Machine options were not forwarded to the linker correctly. It caused the pass not to run. Thank you for the help, Oren From: Teresa Johnson [mailto:tejohnson at google.com] Sent: Monday, November 06, 2017 16:52 To: Ben Simhon, Oren <oren.ben.simhon at intel.com> Cc: llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] Target Specific LTO Machine Pass When do you want it to run? Machine specific passes are invoked during codegen. It looks like anything you add via addPreEmitPass should get invoked during LTO codegen (via TargetMachine::addPassesToEmitFile which eventually calls that through some other layers). Are you sure it isn't being invoked during LTO codegen? Teresa On Mon, Nov 6, 2017 at 6:03 AM, Ben Simhon, Oren via llvm-dev <llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org>> wrote: Hi, I want to add Target Specific MachineFunctionPass so that it will run during Link Time Optimization. The pass is currently running in non-LTO compilation (added in addPreEmitPass). What do I need to do in order to run my pass also during LTO? Thanks, Oren --------------------------------------------------------------------- Intel Israel (74) Limited This e-mail and any attachments may contain confidential material for the sole use of the intended recipient(s). Any review or distribution by others is strictly prohibited. If you are not the intended recipient, please contact the sender and delete all copies. _______________________________________________ LLVM Developers mailing list llvm-dev at lists.llvm.org<mailto:llvm-dev at lists.llvm.org> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev -- Teresa Johnson | Software Engineer | tejohnson at google.com<mailto:tejohnson at google.com> | 408-460-2413 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20171106/7a4b64cd/attachment.html>
Apparently Analagous Threads
- RFC: Dynamically Allocated "Callee Saved Registers" Lists
- RFC: Dynamically Allocated "Callee Saved Registers" Lists
- RFC: Dynamically Allocated "Callee Saved Registers" Lists
- RFC: Dynamically Allocated "Callee Saved Registers" Lists
- RFC: Adding Register Calling Convention Support