[PATCH] D18127: Remove compile time PreserveName in favor of a runtime cc1 -discard-value-names option

[Mehdi AMINI via cfe-commits]

joker.eph created this revision.
joker.eph added reviewers: echristo, chandlerc.
joker.eph added a subscriber: cfe-commits.

This flag is enabled by default in the driver when NDEBUG is set. It
is forwarded on the LLVMContext to discard all value names (but
GlobalValue) for performance purpose.

This an improved version of D18024

http://reviews.llvm.org/D18127

Files:
  include/clang/Driver/CC1Options.td
  include/clang/Frontend/CodeGenOptions.def
  lib/CodeGen/CGBuilder.h
  lib/CodeGen/CGCall.cpp
  lib/CodeGen/CGExpr.cpp
  lib/CodeGen/CodeGenFunction.cpp
  lib/CodeGen/ModuleBuilder.cpp
  lib/Driver/Tools.cpp
  lib/Frontend/CompilerInvocation.cpp
  test/CodeGen/mips-byval-arg.c
  test/CodeGen/mips-vector-arg.c
  test/CodeGen/mips-zero-sized-struct.c
  test/CodeGen/mips64-class-return.cpp
  test/CodeGen/mips64-padding-arg.c
  test/CodeGenCXX/debug-info-class.cpp
  test/CodeGenCXX/stack-reuse.cpp

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