Lines Matching full:clang
6 <title>Clang - Performance</title>
19 <h1>Clang - Performance</h1>
22 <p>This page tracks the compile time performance of Clang on two
47 respective benchmark, using Clang, gcc, and llvm-gcc as compilers. In
60 <li><tt>-emit-llvm -O0</tt>: For Clang and llvm-gcc, this option
75 with <tt>-parse-noop</tt> (for clang) or <tt>-MM</tt> with gcc and
80 clang as much as possible. The graphs below show these numbers
101 <p>This shows Clang's substantial performance improvements in
104 benchmark is relatively small. One caveat, Clang's debug information
106 -O0 -g</tt> numbers are unfair since Clang is generating substantially
111 with PCH; about 4x in wall time. Unfortunately, Clang does not yet
120 involves a large amount of code generation. The time spent in Clang's
123 performance means Clang still comes in at ~29% faster versus gcc
126 <p>These numbers indicate that Clang still has room for improvement in
128 than that of llvm-gcc, and both Clang and llvm-gcc incur a
