similar to: Question regarding X86::getCondFromBranch()

I am trying to categorize the machine instructions based on associated static (i.e., as encoded in .td file) machine description and the corresponding APIs. I would like to perform appropriate actions based on the kind of instruction in a tool that I am working on. For example, I'd like to distinguish between memop instructions involving immediate vs register. While it appears that I would be

Thanks for your reply, Paul. That seems to be a plausible explanation. I ended up adding code in my project to massage the output of llvm-config to the right paths based of the values of CMAKE_GENERATOR and build-mode. Bharadwaj On Dec 15, 2017 9:46 AM, "Robinson, Paul" <paul.robinson at sony.com> wrote: It may be that llvm-config simply doesn't understand a

I think even if we did use it, MoveImmediate is intended for instructions that move an immediate into a register rather than into memory. It's supposed to indicate instructions that can be folded with the user of the register by changing the user to an immediate instruction. And it wouldn't be set on an instruction like "addl $0, %eax" or "addl $0, (%ecx)" either since

Hi, I had (naively?) expected that the instruction to move immediate to register or memory (such as MOV32mi, MOV32ri, MOV64mi32, MOV64ri, MOV64ri32) would be marked with the flag MCID::MovImm via the X86InstrInfo.td (and hence in the generated X86GenInstrInfo.inc). I do not see that to be the case. Can someone please tell me if my expectation is flawed? Is there a better/different way to

Hi Duncan, Thanks for your reply. I did try the method suggested by you. I got a foo.bc with -emit-llvm switch. llc on foo.bc gets me the same assertion failure, as you pointed out. Then I ran bugpoint to generate bugpoint-reduced-simplified.bc and bugpoint-reduced-function.bc. My previous experience is that if I compile either if them, I would get the same failure as I did with foo.bc. That is

Hi, I configured and built LLVM as follows on Mac OS 10.13.2: $ pwd <llvm-build-dir> $ cmake -G "Xcode" -DCMAKE_INSTALL_PREFIX=<llvm-install-dir> -DLLVM_ENABLE_PIC=0 <llvm-src-dir>/llvm $ xcodebuild -project LLVM.xcodeproj All binaries are in <llvm-build-dir>/Debug/bin. I am interested in using the output of llvm-config. Now, when I run $

That flag is specifically used by the foldImmediate optimization in the Peephole pass. We don't implement the TLI foldImmediate hook the peephole pass uses on x86 so we have no reason to set the flag on any instructions What are you trying to do? ~Craig On Fri, Feb 9, 2018 at 11:45 AM, S. Bharadwaj Yadavalli via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi, > > I had

On Mar 4, 2009, at 1:33 PM, S. Bharadwaj Yadavalli wrote: > Hi Duncan, > > Thanks for your reply. > > I did try the method suggested by you. I got a foo.bc with -emit- > llvm switch. llc on foo.bc gets me the same assertion failure, as > you pointed out. > > Then I ran bugpoint to generate bugpoint-reduced-simplified.bc and > bugpoint-reduced-function.bc. My

I would like to generate the tags for LLVM sources to be used by emacs. I noticed that there is a tags target that can be specified to make to generate the tags file. It appears that the rules for this target are generated only with the specification of --with-tags option to configure script. However, I get the following errors respectively when I specify --with-tags or --with-tags=TAGS option to

Hi, Is there some place I can get instructions to load, build and debug LLVM and/or Clang using XCode on Mac OSX? Sorry if this is an FAQ - my (possibly quick) search did not yield an answer. Thanks, Bharadwaj

Luke Dalessandro wrote: > S. Bharadwaj Yadavalli wrote: >> $ ../../../src/llvm-gcc-4.2/configure >> --prefix=<llvm-root>/install/x86_64-arm/llvm-gcc-4.2 >> --program-prefix=llvm-x86_64-arm >> --enable-llvm=<llvm-root>/install/x86_64-arm/llvm >> --enable-languages=c,c++ --disable-multilib >> --target=arm-unknown-linux-gnueabi > > I

I am trying to build a x86_64 to ARM cross compiler. I configured, built and installed LLVM as follows: $ ../../../src/llvm/configure --with-llvmgccdir=<llvm-root>/install/x86_64-arm/llvm-gcc-4.2 --enable-optimized --enable-jit --prefix=<llvm-root>/install/x86_64-arm/llvm --target=arm-unknown-linux-gnueabi $ make $ make install Then I configured gcc front end as follows: $

Hi, Sorry for the newbie question. I downloaded llvm and tried out the simple "Hello, World" program but got the following error. What am I missing? I am running RHAS 3 Update 4 with GCC 3.2.3. Thanks, Bharadwaj $ ./hello lli: /home/proj/skokomish/syadaval/ia32/Sandbox/llvm/lib/Target/X86/X86CodeEmitter.cpp:208: unsigned char ModRMByte(unsigned int, unsigned int, unsigned int):

Hi , Currently GobalIsel like FastIsel designed to use fallback to DAGIsel in case of failure. You can use -global-isel-abort=2 option. llc -global-isel -pass-remarks-missed="gisel-*" -global-isel-abort=2 simple_foo.ll Regards, Igor From: S. Bharadwaj Yadavalli [mailto:bharadwajy at gmail.com] Sent: Thursday, November 09, 2017 03:36 To: Aditya Nandakumar <proaditya at

I believe if you pass(iirc) -pass-remarks-missed=“gisel-*”, it’ll print the instruction it failed to legalize. Sent from my iPhone > On Oct 11, 2017, at 6:44 PM, S. Bharadwaj Yadavalli via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Thanks for your quick reply. > > Here its is: > > =========== > > ; ModuleID = 'simple_foo.c' > source_filename

Hi, Can someone please let me know if I can expect GlobalISel to be functional for x86/x86-64 targets? $ uname -a Darwin <Machine-Name> 17.0.0 Darwin Kernel Version 17.0.0: Thu Aug 24 21:48:19 PDT 2017; root:xnu-4570.1.46~2/RELEASE_X86_64 x86_64 Following is the command I used that resulted in an error : ~/github/build/llvm/Debug/bin/llc -global-isel -O0 simple_foo.ll LLVM ERROR: unable

Thanks for your quick reply. Here its is: =========== ; ModuleID = 'simple_foo.c' source_filename = "simple_foo.c" target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.13.0" ; Function Attrs: noinline nounwind optnone ssp uwtable define i32 @foo(i32 %a, i32 %b, i32 %c) #0 { entry: %retval = alloca i32, align

Hi, I built LLVM + Clang on Mac OS X and ran make check. I get the following result summary: Failing Tests (11): LLVM :: LLVMC/C++/dash-x.cpp LLVM :: LLVMC/C++/hello.cpp LLVM :: LLVMC/C++/just-compile.cpp LLVM :: LLVMC/C++/together.cpp LLVM :: LLVMC/C++/unknown_suffix.unk LLVM :: LLVMC/C/hello.c LLVM :: LLVMC/C/opt-test.c LLVM :: LLVMC/C/sink.c LLVM ::

I get the following error during compilation using the LLVM cross-compiler (x86_64->arm). error: nested functions are disabled, use -fnested-functions to re-enable With -fnested-functions switch, I get the following error: <llvm-src-dir>/llvm/lib/Target/ARM/ARMISelLowering.cpp:1439: virtual llvm::SDValue llvm::ARMTargetLowering::LowerOperation(llvm::SDValue, llvm::SelectionDAG&):

S. Bharadwaj Yadavalli wrote: > > I am trying to build a x86_64 to ARM cross compiler. > > I configured, built and installed LLVM as follows: > > $ ../../../src/llvm/configure > --with-llvmgccdir=<llvm-root>/install/x86_64-arm/llvm-gcc-4.2 > --enable-optimized --enable-jit > --prefix=<llvm-root>/install/x86_64-arm/llvm >