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llvm-project/clang/test/CXX/dcl.dcl/basic.namespace/namespace.udecl
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Richard Smith 05afe5e084 Fix PR10447: lazily building name lookup tables for DeclContexts was broken. 
The deferred lookup table building step couldn't accurately tell which Decls
should be included in the lookup table, and consequently built different tables
in some cases.

Fix this by removing lazy building of DeclContext name lookup tables. In
practice, the laziness was frequently not worthwhile in C++, because we
performed lookup into most DeclContexts. In C, it had a bit more value,
since there is no qualified lookup.

In the place of lazy lookup table building, we simply don't build lookup tables
for function DeclContexts at all. Such name lookup tables are not useful, since
they don't capture the scoping information required to correctly perform name
lookup in a function scope.

The resulting performance delta is within the noise on my testing, but appears
to be a very slight win for C++ and a very slight loss for C. The C performance
can probably be recovered (if it is a measurable problem) by avoiding building
the lookup table for the translation unit.

llvm-svn: 152608
 		2012-03-13 03:12:56 +00:00
..
p1.cpp Modify how the -verify flag works. Currently, the verification string and 2011-12-15 00:38:15 +00:00
p3-cxx0x.cpp Update all tests other than Driver/std.cpp to use -std=c++11 rather than 2011-10-13 22:29:44 +00:00
p4.cpp Change the 'declared at' diagnostic to say 'declared here'. 2010-04-23 02:20:12 +00:00
p5-cxx0x.cpp Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 2009-12-15 20:14:24 +00:00
p6-cxx0x.cpp Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 2009-12-15 20:14:24 +00:00
p8-cxx0x.cpp Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. 2009-12-15 20:14:24 +00:00
p8.cpp Revert r120063, it was wrong. 2010-11-29 18:01:58 +00:00
p10.cpp If name lookup finds different type declarations in different scopes 2010-08-11 14:45:53 +00:00
p11.cpp Fix PR10447: lazily building name lookup tables for DeclContexts was broken. 2012-03-13 03:12:56 +00:00
p12.cpp Fix a point of semantics with using declaration hiding: method templates 2010-06-16 08:42:20 +00:00
p13.cpp A using declaration can redeclare a typedef to the same type. These 2010-07-07 23:08:52 +00:00