http://llvm.org/bugs/show_bug.cgi?id=16365
Bug ID: 16365
Summary: Extremely slow compilation in -O1 and -O2
Product: clang
Version: 3.2
Hardware: Macintosh
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Created attachment 10703
--> http://llvm.org/bugs/attachment.cgi?id=10703&action=edit
source file showing problem.
Very slow compilation of large but very simple source file.
$ time clang++ -O2 -c biggraph.C
real 1m21.025s
user 1m19.286s
sys 0m1.734s
$ time g++-4 -O2 -c biggraph.C [ g++ 4.8.1]
real 0m9.375s
user 0m9.191s
sys 0m0.176s
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