[llvm-dev] Question about passing -v -save-temps cmd args to clang++ (original) (raw)

Mahesha S via llvm-dev llvm-dev at lists.llvm.org
Thu Feb 28 23:15:50 PST 2019

Hello all,

This could be a naive question, but still asking it here because of my limited knowledge on clang/llvm infrastructure.

Question: When I pass -v save-temps options to clang++, I was expecting to see the command line for both opt and llc in the expanded command line output, but, I don't see it. What am I missing?

Clang++ Command Line: clang++ -v -save-temps hello.cpp

Expanded Command Line Output:

clang version 9.0.0 (https://github.com/llvm/llvm-project.git 2d6bb13443d86d650e92b280d4f7df0805eebac7) Target: x86_64-unknown-linux-gnu Thread model: posix InstalledDir: /home/mahesha/LLVM/install/bin Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0 Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8 Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/7.3.0 Candidate multilib: .;@m64 Selected multilib: .;@m64 "/home/mahesha/LLVM/install/bin/clang-9" -cc1 -triple x86_64-unknown-linux-gnu -E -save-temps=cwd -disable-free -main-file-name hello.cpp -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath- errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /home/mahesha/LLVM/install/lib/clang/9.0.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux -gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0/backward -internal-isystem /usr/local/include -internal-isystem /home /mahesha/LLVM/install/lib/clang/9.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/include -fdeprecated-macro -fdebug-compilat ion-dir /home/mahesha/Scratch -ferror-limit 19 -fmessage-length 211 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -o hello.ii -x c++ hello.cpp -faddrsig clang -cc1 version 9.0.0 based upon LLVM 9.0.0svn default target x86_64-unknown-linux-gnu ignoring nonexistent directory "/include" ignoring duplicate directory "/usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0 /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/x86_64-linux-gnu/c++/7.3.0 /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../../include/c++/7.3.0/backward /usr/local/include /home/mahesha/LLVM/install/lib/clang/9.0.0/include /usr/include/x86_64-linux-gnu /usr/include End of search list. "/home/mahesha/LLVM/install/bin/clang-9" -cc1 -triple x86_64-unknown-linux-gnu -emit-llvm-bc -emit-llvm-uselists -save-temps=cwd -disable-free -main-file-name hello.cpp -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /home/mahesha/LLVM/install/li b/clang/9.0.0 -fdeprecated-macro -fdebug-compilation-dir /home/mahesha/Scratch -ferror-limit 19 -fmessage-length 211 -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -disable-llvm-passes -o hello.bc -x c++-cpp-output hello.ii -faddrsig clang -cc1 version 9.0.0 based upon LLVM 9.0.0svn default target x86_64-unknown-linux-gnu #include "..." search starts here: End of search list. "/home/mahesha/LLVM/install/bin/clang-9" -cc1 -triple x86_64-unknown-linux-gnu -S -save-temps=cwd -disable-free -main-file-name hello.cpp -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath- errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -dwarf-column-info -debugger-tuning=gdb -v -resource-dir /home/mahesha/LLVM/install/lib/clang/9.0.0 -fdebug-compilati on-dir /home/mahesha/Scratch -ferror-limit 19 -fmessage-length 211 -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -o hello.s -x ir hello.bc -faddrsig clang -cc1 version 9.0.0 based upon LLVM 9.0.0svn default target x86_64-unknown-linux-gnu "/home/mahesha/LLVM/install/bin/clang-9" -cc1as -triple x86_64-unknown-linux-gnu -filetype obj -main-file-name hello.cpp -target-cpu x86-64 -dwarf-version=4 -mrelocation-model static -mrelax-all -o hello.o hell o.s "/usr/bin/ld" -z relro --hash-style=gnu --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o a.out /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../x86_64-linux-gnu/crt1.o /usr/lib/gcc/x86_64 -linux-gnu/7.3.0/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/7.3.0/crtbegin.o -L/usr/lib/gcc/x86_64-linux-gnu/7.3.0 -L/usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../x86_64-linux-gnu -L/lib/x86_6 4-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../.. -L/home/mahesha/LLVM/install/bin/../lib -L/lib -L/usr/lib hello.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lg cc /usr/lib/gcc/x86_64-linux-gnu/7.3.0/crtend.o /usr/lib/gcc/x86_64-linux-gnu/7.3.0/../../../x86_64-linux-gnu/crtn.o

-- Thanks, Mahesha -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190301/5bf222ab/attachment.html>

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