[llvm-bugs] [Bug 32264] New: compiling is 70% slower compared to gcc 5.4.0

via llvm-bugs llvm-bugs at lists.llvm.org
Tue Mar 14 06:10:03 PDT 2017


            Bug ID: 32264
           Summary: compiling is 70% slower compared to gcc 5.4.0
           Product: clang
           Version: 4.0
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: -New Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: wbrana at gmail.com
                CC: llvm-bugs at lists.llvm.org

Created attachment 18090
  --> https://bugs.llvm.org/attachment.cgi?id=18090&action=edit

clang 4.0
time clang++ -c -O2  -std=c++11  main.clang.ii
real    0m22.643s
user    0m22.529s
sys     0m0.107s

gcc 5.4.0
time g++ -c -O2  -std=c++11  main.gcc.ii
real    0m13.582s
user    0m13.347s
sys     0m0.234s

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