[cfe-commits] r128911 - /cfe/trunk/lib/CodeGen/BackendUtil.cpp
atrick at apple.com
Tue Apr 5 11:56:55 PDT 2011
Date: Tue Apr 5 13:56:55 2011
New Revision: 128911
Added *hidden* flags -print-options and -print-all-options so
developers can see if their driver changed any cl::Option's. The
current implementation isn't perfect but handles most kinds of
options. This is nice to have when decomposing the stages of
compilation and moving between different drivers. It's also a good
sanity check when comparing results produced by different command line
invocations that are expected to produce the comparable results.
Note: This is not an attempt to prolong the life of cl::Option. On the
contrary, it's a placeholder for a feature that must exist when
cl::Option is replaced by a more appropriate framework. A new
framework needs: a central option registry, dynamic name lookup,
non-global containers of option values (e.g. per-module,
per-function), *and* the ability to print options values and their defaults at
any point during compilation.
--- cfe/trunk/lib/CodeGen/BackendUtil.cpp (original)
+++ cfe/trunk/lib/CodeGen/BackendUtil.cpp Tue Apr 5 13:56:55 2011
@@ -323,6 +323,9 @@
+ // Before executing passes, print the final values of the LLVM options.
// Run passes. For now we do all passes at once, but eventually we
// would like to have the option of streaming code generation.
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