https://llvm.org/bugs/show_bug.cgi?id=29160
Bug ID: 29160
Summary: clang is 36.5 times slower than gcc
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 17056
--> https://llvm.org/bugs/attachment.cgi?id=17056&action=edit
Use -DCHUNKS=N where N from 1 to 42
It takes >2 minutes to compile attached source.cpp (when -DCHUNKS=28) by clang
but only 3.5 seconds to compile by gcc.
This wouldn't be a huge problem, but this is rather simplified version -
original took over an hour to compile.
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