similar to: [LLVMdev] LTO, llvm and -m32 not working

I have gold from cvs, and llvm-gcc/llvm from svn. My platform is Ubuntu 9.04 x86_64. I've configured llvm-gcc with "--enable-multilib". When compiling the LTO example from http://llvm.org/docs/LinkTimeOptimization.html I have no problems with 64-bit compilation, but get the following with -m32. luked at node:~/tests/lto$ make USE32=1 llvm-gcc -m32 -c -o main.o main.c llvm-gcc

Gents, I am trying to do a "gcc -m32" on a x86_64 box. gcc -m32 /tmp/jj.c /usr/bin/ld: crt1.o: No such file: No such file or directory collect2: ld returned 1 exit status This is the error I get. I did a "yum install glib.i386" successfully. there is no "yum install glib-devel.i386". How can i get a "gcc -m32" compile on my x86_64? THanks, Jerry

> On May 17, 2016, at 1:33 AM, Shi, Steven via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hello, > Let me ask a LTO simple question again. For the llvm LTO example in the link:http://llvm.org/docs/LinkTimeOptimization.html <http://llvm.org/docs/LinkTimeOptimization.html>, I use below build commands to generate three different optimization level binary: -O0, -O1, -O2.

On 30 August 2010 12:43, Luke Dalessandro <luked at cs.rochester.edu> wrote: > I have gold from cvs, and llvm-gcc/llvm from svn. My platform is > Ubuntu 9.04 x86_64. I've configured llvm-gcc with "--enable-multilib". > > When compiling the LTO example from > http://llvm.org/docs/LinkTimeOptimization.html I have no problems with > 64-bit compilation, but get

Hi, I've been following the instructions on how to use the LLVM Gold plugin at http://llvm.org/docs/GoldPlugin.html while building an multiple versions of WebKit. The documentation hasn't been updated since 2010 and hasn't really matched my experiences, so I'd like to ask if I'm doing these steps incorrectly. What I'm trying to do is force all compilation steps to

Hi, I fixed error by using different version of ld with LLVM 2.7. I used ld.gold that comes with Ubuntu 10.04. Here is the version info: sangmin at sangmin-desktop:/tmp$ ld -v GNU gold (GNU Binutils for Ubuntu 2.20.1-system.20100303) 1.9 My experience of gold plugin is as follows: LLVM 2.7 (with libLLVMgold.so) + ld 2.20.1 (from Ubuntu 10.04) : O LLVM 2.7 (with libLLVMgold.so) + ld 2.21.51

Hi all, I got an error from the gold plugin example in the following link: http://llvm.org/docs/GoldPlugin.html#example1 Here is the error message: sangmin at sangmin-desktop:/tmp$ llvm-gcc -use-gold-plugin a.a b.o -o main /usr/bin/ld: error: a.a: no archive symbol table (run ranlib) /usr/bin/ld: /usr/lib/crt1.o:(.text+0x18): error: undefined reference to 'main' /usr/bin/ld: b.o: in

> First, I create libjscore.a with ar, where I've changed the command > line to load the plugin: > ar cqs --plugin > /home/tmjackso/multicompiler/llvm-3.0/release/lib/LLVMgold.so > libjscore.a <list of object files> Note that you shouldn't need to pass --plugin to ar, it searches bfd-plugins. > Then I link jsc against libjscore.a: >

Hi Duncan, > 4.gcc -g -O2 -o .libs/mergedexe .libs/mergedbc.s -pthread > -Wl,--export-dynamic .libs/lib1.a -lssl -lcrypto -ldl -pthread .libs/lib2.so >if you pass -O4 rather than -O2 to clang I think it will in essence do this all >for you already. It might even do the link time optimization for you at -O2 >even, I'm not sure. No, if I use clang for producing

On 6/25/2010 2:37 PM, Rafael Espindola wrote: > The linker (gold) requires you to pass -plugin to it. I am using the command: llvm-gcc a.c -emit-llvm -use-gold-plugin and here is the output: $LLVMGCCPREFIX/lib/gcc/i686-pc-linux-gnu/4.2.1/../../../../i686-pc-linux-gnu/bin/ld: error: $LLVMGCCPREFIX/libexec/gcc/i686-pc-linux-gnu/4.2.1/libLLVMgold.so: could not load plugin library

I am seeing the same problems using 'llvm-ld' with llvm-gcc at -O4 on x86_64 Fedora 8 linux as on Darwin. Another example of this is building the scimark2_1c benchmark... http://math.nist.gov/scimark2/download_c.html as follows on x86_64 Fedora 8... /home/howarth/llvm-gcc42-work/bin/gcc -O4 -m64 -c FFT.c /home/howarth/llvm-gcc42-work/bin/gcc -O4 -m64 -c kernel.c

> On Jul 23, 2016, at 1:53 PM, Sedat Dilek via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: > > On Sat, Jul 23, 2016 at 7:48 PM, Piotr Padlewski <prazek at google.com <mailto:prazek at google.com>> wrote: >> How big is your project? >> LTO eats RAM even faster than chrome. For example linking clang with LTO >>

On 6/26/2010 10:30 AM, Rafael Espindola wrote: >> So the gold and the LLVMgold are linked against the same libstdc++. I am >> using the gcc at /s/gcc-4.3.1/i386_rhel5/bin to compile the LLVM chain. > Can you run llvm-gcc again with -Wl,-debug? This will show the linker > line being used. You can then run gdb on it. Try to find what error is > dlopen reporting. I wonder if gold

Trivial hello world program compiles with -O3, but with -O4: (BTW, is there a guide to what different -On mean?) llvm-g++ -O4 Hello.cc -o Hello -v Using built-in specs. Target: x86_64-unknown-linux-gnu Configured with: ../llvm-gcc4.2-2.4.source/configure --program-prefix=llvm- --enable-llvm=/home/nbecker/llvm-2.4 --enable-languages=c,c++ Thread model: posix gcc version 4.2.1 (Based on Apple Inc.

> On May 17, 2016, at 11:21 AM, Umesh Kalappa <umesh.kalappa0 at gmail.com> wrote: > > Steven, > > As mehdi stated , the optimisation level is specific to linker and it > enables Inter-Pro opts passes ,please refer function To be very clear: the -O option may trigger *linker* optimizations as well, independently of LTO. -- Mehdi > >

Hi all, after reading and learning much more about GNU's configure and compile machine than I ever wanted ;-), I arrived at configuring llvm-2.2 like this: CFLAGS=-m32 CXXFLAGS=-m32 ./configure --prefix=$HOME The assembler errors are finally gone (phew!, and thanks for all the help!), but I get linker errors now: llvm[3]: Linking Release Object Library LLVMX86.o llvm[3]: Compiling

Hi, I’m using _mm_storel_epi64/ _mm_loadl_epi64 in my test case as below and generating 32-bit code (using -m32 and -msse4.2). The 64-bit load and 64-bit store operations are replaced with two 32-bit mov instructions, presumably due to the use of uint64_t type. If I use __m128i instead of uint64_t everywhere, then the read and write happen as 64-bit operations using the xmm registers as expected.

Resending, can somebody please help? On 5/16/2012 2:47 PM, Ashok Nalkund wrote: > Hi All, > I built the binaries from the 3.1 final tag > (http://llvm.org/svn/llvm-project/cfe/tags/RELEASE_31/final/ etc) as below: > >> ../llvm/configure --enable-targets=host-only --prefix=/local/mnt/workspace/ashoknn/crd/neo/llvmsvn/build/bin >> make install > > I notice that

I didn't try to compile it locally (I don't have/use gold), but you should be able to fix the 3 errors fairly easily (looks like missing includes mostly). -- Mehdi > On May 30, 2016, at 5:11 AM, Shi, Steven <steven.shi at intel.com> wrote: > > Hi Mehdi, > Your patch cannot compile with gold-plugin.cpp in latest trunk either, the failure is same as llvm3.8 as below.

Hi, I build llvm with gold plugin, clang and the binutils(and it's put into the PATH) with plugins support. ld.gold is renamed to ld. A quick test of clang -flto -O0 hello.c can succeed. But when I try to export CC="clang -v -flto" and compile MySQL, it failed in the linking with the following error message: "/home/ryan/binutils/bin/ld" -export-dynamic -z relro