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Quick results: [twang15 at c89 temp]$ clang -mllvm -help clang-5.0: error: no input files [twang15 at c89 temp]$ clang -mllvm -help-hidden clang-5.0: error: no input files [twang15 at c89 temp]$ clang -mllvm --help-hidden clang-5.0: error: no input files [twang15 at c89 temp]$ clang -mllvm --help clang-5.0: error: no input files Anything wrong? O...

Thanks for pointing this out. The following is a more extensive test. //succeed means dumping help info without Error message. clang -help #succeed 'clang -help-hidden' #Fail 'clang --help-hidden' #Succeed clang -mllvm -v -help #Succeed clang -mllvm -v -help-hidden #Fail clang -mllvm -v --help-hidden #Succeed 'clang -mllvm -help -c LULESH.cc' #Succeed 'clang -mllvm -help LULESH.cc' # Fail clang -cc1 -help #Succeed clang -cc1 -help-hidden #Fail . (may be no hidden option) clang -cc1 --help-hidden...

clang -O3 -mllvm -help -c LULESH.cc succeeds. On Tue, Jan 9, 2018 at 2:05 AM, toddy wang <wenwangtoddy at gmail.com> wrote: > Quick results: > > [twang15 at c89 temp]$ clang -mllvm -help > clang-5.0: error: no input files > [twang15 at c89 temp]$ clang -mllvm -help-hidden > clang-5.0: err...

...at c89 temp]$ clang++ -O2 -Xclang -disable-llvm-optzns -save-temps LULESH.cc [twang15 at c89 temp]$ cp a.out a.out.1 [twang15 at c89 temp]$ clang++ -O2 -Xclang -disable-llvm-passes -save-temps LULESH.cc [twang15 at c89 temp]$ diff a.out a.out.1 [twang15 at c89 temp]$ *2. Both cannot be passed w/ -mllvm without -emit-llvm -c* [twang15 at c89 temp]$ clang++ -O2 -mllvm -disable-llvm-optzns -save-temps LULESH.cc clang (LLVM option parsing): Unknown command line argument '-disable-llvm-optzns'. Try: 'clang (LLVM option parsing) -help' clang (LLVM option parsing): Did you mean '-...

There's a hack in lib/Driver/ToolChains/Clang.cpp to accept "-mllvm -disable-llvm-optzns" as a hack for legacy compatibility. It's deprecated and the -Xclang spelling should be used. There does appear to be a bug with "-mllvm -disable-llvm-optzns" and -save-temps. -save-temps causes clang to be invoked separately to text assembly into binary cod...

...until I hit the same problem as with -O1, but > clang itself doesn't seem to allow these commandline options, for example: > > > > clang -loops -lcssa .... > > > > > > If you want to pass LLVM arguments to clang, then you must prefix them > with -llvm (e.g. -mllvm -loops -mllvm lcssa). > > I just tried this: CFLAGS += -mllvm adce -mllvm loops -mllvm loop-simplify -mllvm lcssa -mllvm simplify-libcalls And get: clang (LLVM option parsing): Unknown command line argument 'adce'. Try: 'clang (LLVM option parsing) -help' clang (LLVM option...

...at arm.com>> wrote: >>> >>> >>>> On 22 May 2017, at 09:09, Diana Picus <diana.picus at linaro.org <mailto:diana.picus at linaro.org>> wrote: >>>> >>>> Hi Quentin, >>>> >>>> I actually did a run with -mllvm -optimize-regalloc -mllvm >>>> -regalloc=greedy over the weekend and the test does pass with that. >>>> Haven't measured the compile time though. >>>> >>>> Cheers, >>>> Diana >>> >>> I also did my usual benchmarking...

...error messages? Are you using a 32bit platform? > > Expected Passes : 104 > Expected Failures : 29 > Unexpected Failures: 3 > make: *** [polly-test] Error 1 > > When I try your command 'clang -Xclang -load ${POLLY_DLIB} ${FILE}.c -o ${FILE}.ll -S -emit-llvm -mllvm -polly -O0' if fails with the following errors: The command to prepare the code for Polly was incorrect. I missed a '-Xclang' option. The correct one is: clang -Xclang -load -Xclang ${POLLY_DLIB} ${FILE}.c -o ${FILE}.ll -S -emit-llvm -mllvm -polly -O0 to also enable -enable-iv-rewr...

...>>>> Ahmed did a bunch of compile time measurements on our side and I wanted to see if I need to put him on the hook again :). >>> >>> I did a quick setup with CTMark (part of the test-suite). I ran each of >>> * '-O0 -g', >>> * '-O0 -g -mllvm -global-isel=true -mllvm -global-isel-abort=0', and >>> * '-O0 -g -mllvm -global-isel=true -mllvm -global-isel-abort=0 -mllvm -optimize-regalloc -mllvm -regalloc=greedy' >>> 5 times, cross-compiling from X86 to AArch64, and took the median measured compile times. >&...

...as wrong, it saves me some time. > On May 22, 2017, at 12:51 AM, Kristof Beyls <kristof.beyls at arm.com> wrote: > > >> On 22 May 2017, at 09:09, Diana Picus <diana.picus at linaro.org> wrote: >> >> Hi Quentin, >> >> I actually did a run with -mllvm -optimize-regalloc -mllvm >> -regalloc=greedy over the weekend and the test does pass with that. >> Haven't measured the compile time though. >> >> Cheers, >> Diana > > I also did my usual benchmarking run with the same options as Diana did above: > - Co...

While checking on the status of https://llvm.org/bugs/show_bug.cgi?id=22657 in current llvm/clang trunk, I noticed that the previous work-around for recovering the missing in-lining of the c-ray 1.1 benchmarks of passing -mllvm -inline-threshold=500 no longer works. This regression doesn't exist in the 3.8.0 release. Any idea what commit in 3.9svn might have introduced this regression? Jack

...on has significant impact on both compile-time and execution-time performance. Detailed results for SCEV and default canonicalization can be viewed on: http://188.40.87.11:8000/db_default/v4/nts/32 (or 33, 34) *pNoGen with SCEV canonicalization (run 32): -O3 -Xclang -load -Xclang LLVMPolly.so -mllvm -polly -mllvm -polly-optimizer=none -mllvm -polly-code-generator=none -mllvm -polly-codegen-scev *pNoGen with default canonicalization (run 33): -O3 -Xclang -load -Xclang LLVMPolly.so -mllvm -polly -mllvm -polly-optimizer=none -mllvm -polly-code-generator=none *pBasic without any canonicaliza...

Hi, Is there a way to passing llc options to clang, for example -march -mcpu, etc. ? Some threads suggested using -mllvm flag, I tried ./clang -mllvm -march=X86-64 -mcpu=core2 -o hello hello.c, but got "Unknown command line argument" Thanks, Ziqiang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141013/7982544a/att...

...ngle_do_loop_int_max_iterations.ll Polly :: CodeGen/single_do_loop_scev_replace.ll Expected Passes : 104 Expected Failures : 29 Unexpected Failures: 3 make: *** [polly-test] Error 1 When I try your command 'clang -Xclang -load ${POLLY_DLIB} ${FILE}.c -o ${FILE}.ll -S -emit-llvm -mllvm -polly -O0' if fails with the following errors: -------------------------------------- clang: warning: /Developer/llvm_build/tools/polly/Debug+Asserts/lib/LLVMPolly.dylib: 'linker' input unused when '-S' is present clang: warning: argument unused during compilation: '-mllvm...

...nch of compile time measurements on our side and I wanted to see if I need to put him on the hook again :). >>>>> >>>>> I did a quick setup with CTMark (part of the test-suite). I ran each of >>>>> * '-O0 -g', >>>>> * '-O0 -g -mllvm -global-isel=true -mllvm -global-isel-abort=0', and >>>>> * '-O0 -g -mllvm -global-isel=true -mllvm -global-isel-abort=0 -mllvm -optimize-regalloc -mllvm -regalloc=greedy' >>>>> 5 times, cross-compiling from X86 to AArch64, and took the median measured comp...

Hi, I have been trying to use the -mllvm -debug option for clang but without much success. Do I need to build in any specific manner for this to work ? On using -mllvm -debug as follows I get the error below. $>clang -ccc-host-triple armv7-none-linux-gnueabi -mfloat-abi=softfp -mfpu=neon -mcpu=cortex-a9 -mllvm -debug fdct.i -S clang...

...st LLVM/Polly source code. You can view the results on http://188.40.87.11:8000. Especially, I also evaluated our r187102 patch file that avoids expensive failure string operations in normal execution. Specifically, I evaluated two cases for it: Polly-NoCodeGen: clang -O3 -load LLVMPolly.so -mllvm -polly-optimizer=none -mllvm -polly-code-generator=none http://188.40.87.11:8000/db_default/v4/nts/16?compare_to=9&baseline=9&aggregation_fn=median Polly-Opt: clang -O3 -load LLVMPolly.so -mllvm -polly http://188.40.87.11:8000/db_default/v4/nts/18?compare_to=11&baseline=11&aggregati...

Is it possible to unroll a loop (forcibly if necessary) with llvm (possibly the -loop-unroll pass) a constant number of times. I believe that I read that the -unroll-count=x option was removed, correct? So is there some other way to do this or is this just not possible in llvm? -------------- next part -------------- An HTML attachment was scrubbed... URL:

...t on both compile-time and execution-time performance. Interesting. > Detailed results for SCEV and default canonicalization can be viewed on: http://188.40.87.11:8000/db_default/v4/nts/32 (or 33, 34) > *pNoGen with SCEV canonicalization (run 32): -O3 -Xclang -load -Xclang LLVMPolly.so -mllvm -polly -mllvm -polly-optimizer=none -mllvm -polly-code-generator=none -mllvm -polly-codegen-scev > *pNoGen with default canonicalization (run 33): -O3 -Xclang -load -Xclang LLVMPolly.so -mllvm -polly -mllvm -polly-optimizer=none -mllvm -polly-code-generator=none > *pBasic without any...

...9;m trying to understand BB Vectorizer and gone through http://llvm.org/devmtg/2012-04-12/Slides/Hal_Finkel.pdf Wanted to know how to use bb-vectorize-debug-candidate-selection and bb-vectorize-debug-pair-selection command arguments. I tried the command with debug build clang - clang -O2 test.c -mllvm -vectorize \ -mllvm -debug-only=bb-vectorize \ -mllvm -bb-vectorize-debug-pair-selection \ -mllvm -bb-vectorize-debug-candidate-selection as mentioned in http://llvm.org/bugs/show_bug.cgi?id=11973 but it doesnt seem to dump the candidate pair info as shown in bug id. Could someone help me out he...