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Add a monstrous hack to improve X86ISelDAGToDAG compile time.

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- Force NDEBUG on in any Release build. This drops the compile time to ~100s
   from ~600s, in Release mode.

 - This may just be a temporary workaround, I don't know the true nature of the
   gcc-4.2 compile time performance problem.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86695 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Dunbar 2009-11-10 18:24:37 +00:00
parent e3f749b166
commit 5da58851e5
1 changed files with 8 additions and 0 deletions
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8
lib/Target/X86/X86ISelDAGToDAG.cpp
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@ -12,6 +12,14 @@
//
//===----------------------------------------------------------------------===//
// Force NDEBUG on in any optimized build on Darwin.
//
// FIXME: This is a huge hack, to work around ridiculously awful compile times
// on this file with gcc-4.2 on Darwin, in Release mode.
#if defined(__APPLE__) && defined(__OPTIMIZE__) && !defined(NDEBUG)
#define NDEBUG
#endif
#define DEBUG_TYPE "x86-isel"
#include "X86.h"
#include "X86InstrBuilder.h"