search for: mfma4

...mization somewhere else that is driving the segfault. In the worst case it could be so. I am yet to dive deeper there. Meanwhile, I have some question w.r.t "-fplugin-arg-dragonegg-emit-ir". Lets say I use the following command: [1]. g++ -O2 -march=bdver2 fplugin=dragonegg.so -mno-fma -mfma4 -fplugin-arg-dragonegg-emit-ir -S -ffast-math <test.c> -o <test.ll> Does the above command produce an IR that is already optimized because of "-O2 -ffast-math -mno-fma -mfma4" ? [2]. If I feed the above generated <test.ll> to clang as follows: clang -O3 -march=bdver2...

Hi Anitha, On 05/11/12 10:29, Anitha Boyapati wrote: > > > On 5 November 2012 14:32, Duncan Sands <baldrick at free.fr > <mailto:baldrick at free.fr>> wrote: > > Hi Anitha, > > > http://llvm.org/bugs/show_bug.__cgi?id=14185 > <http://llvm.org/bugs/show_bug.cgi?id=14185> > I am stuck on analysis. Does any one have

On 5 November 2012 14:32, Duncan Sands <baldrick at free.fr> wrote: > Hi Anitha, > > > http://llvm.org/bugs/show_bug.**cgi?id=14185<http://llvm.org/bugs/show_bug.cgi?id=14185> >> I am stuck on analysis. Does any one have alternate suggestions on >> debugging >> llvm? (Please refer to comments for the work done so far) >> > > try to reduce a

...not have iceil support. I have this tricky situation - I use dragonegg generated LLVM IR as input to clang for some analysis (well it is clang++ actually). Understably,clang cribs looking at __builtin_iceil. Any idea how to resolve that as well? clang++ -O2 -march=bdver2 -mno-fma -save-temps -mfma4 -ffp-contract=fast -DSPEC_CPU_LP64 Compute.o ComputeList.o ComputeNonbondedUtil.o LJTable.o Molecule.o Patch.o PatchList.o ResultSet.o SimParameters.o erf.o spec_namd.o -o namd spec_namd.o: In function `main': spec_namd.ll:(.text+0x2a3): undefined reference to `__bui...

...onegg using -ffast-math option. My dragonegg is built with gcc-4.7.0 (I am compiling namd spec benchmark here again). Any idea? g++ -march=bdver2 -save-temps -fplugin=/home/anboyapa/install/bin/dragonegg.so -O2 -march=bdver2 -save-temps -fplugin=/home/anboyapa/install/bin/dragonegg.so -mno-fma -mfma4 -ffast-math -DSPEC_CPU_LP64 Compute.o ComputeList.o ComputeNonbondedUtil.o LJTable.o Molecule.o Patch.o PatchList.o ResultSet.o SimParameters.o erf.o spec_namd.o -o namd spec_namd.o: In function `main': spec_namd.C:(.text+0x2a3): undefined reference to `__builtin_ice...

...tion fault (optimizers, codegen?). It sounds like you are trying to do so already, more comments below. > Meanwhile, I have some question w.r.t "-fplugin-arg-dragonegg-emit-ir". Lets say > I use the following command: > [1]. g++ -O2 -march=bdver2 fplugin=dragonegg.so -mno-fma -mfma4 > -fplugin-arg-dragonegg-emit-ir -S -ffast-math <test.c> -o <test.ll> > Does the above command produce an IR that is already optimized because of "-O2 > -ffast-math -mno-fma -mfma4" ? Yes, it produces optimized IR due to -O2. If you want unoptimized IR then add -fpl...

...input to > clang for some analysis (well it is clang++ actually). Understably,clang cribs > looking at __builtin_iceil. Any idea how to resolve that as well? adding dragonegg support for iceil would solve both problems. Ciao, Duncan. > clang++ -O2 -march=bdver2 -mno-fma -save-temps -mfma4 -ffp-contract=fast > -DSPEC_CPU_LP64 Compute.o ComputeList.o ComputeNonbondedUtil.o LJTable.o > Molecule.o Patch.o PatchList.o ResultSet.o SimParameters.o erf.o > spec_namd.o -o namd > spec_namd.o: In function `main': > spec_namd.ll:(.text+0x2a3): undef...

...th option. My dragonegg is built with gcc-4.7.0 > (I am compiling namd spec benchmark here again). > Any idea? > g++ -march=bdver2 -save-temps -fplugin=/home/anboyapa/install/bin/dragonegg.so > -O2 -march=bdver2 -save-temps -fplugin=/home/anboyapa/install/bin/dragonegg.so > -mno-fma -mfma4 -ffast-math -DSPEC_CPU_LP64 Compute.o ComputeList.o > ComputeNonbondedUtil.o LJTable.o Molecule.o Patch.o PatchList.o ResultSet.o > SimParameters.o erf.o spec_namd.o -o namd > spec_namd.o: In function `main': > spec_namd.C:(.text+0x2a3): undefined referen...

...used -ffp-contract=fast to turn on this option. (Compilation options and targets pasted below). >>>>>>>> clang version 3.2 (trunk 163295:163308) (llvm/trunk 163295) Target: x86_64-unknown-linux-gnu Thread model: posix (Options to clang) -O3 -march=bdver2 -mavx -mno-fma -mfma4 -ffp-contract=fast -save-temps <<<<<<< Note that BDVER2 supports both FMA3 and FMA4. Also the benchmark was run *successfully* when FMA3 was enabled. Reducing the testcase might take more time but has anyone noticed this issue? For those interested, miscompare message is as...

Hi Anitha, > http://llvm.org/bugs/show_bug.cgi?id=14185 > I am stuck on analysis. Does any one have alternate suggestions on debugging > llvm? (Please refer to comments for the work done so far) try to reduce a small standalone testcase which is an LLVM IR (.ll) file. Ciao, Duncan.

Hi, http://llvm.org/bugs/show_bug.cgi?id=14185 I am stuck on analysis. Does any one have alternate suggestions on debugging llvm? (Please refer to comments for the work done so far) -- * Anitha* -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121105/3c6b8af3/attachment.html>