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| author | Brian Gaeke <gaeke@uiuc.edu> | 2004-02-25 01:53:45 +0000 |
|---|---|---|
| committer | Brian Gaeke <gaeke@uiuc.edu> | 2004-02-25 01:53:45 +0000 |
| commit | bb92f6fbf2c36b3530f33eb2e8d1842764ec9fdd (patch) | |
| tree | 5847c9a3081c2d60e20aa547370b0eb25750ed35 /include/Support/MathExtras.h | |
| parent | 2051fe3df52d385daa56ce69765ef172386e5927 (diff) | |
Cygwin defines log2 as a macro. Undef it here IFF it has already been defined,
so that we always get the inline function instead. Remember, kids, like it says
in the GCC manual, "An Inline Function is As Fast As a Macro."
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11815 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/Support/MathExtras.h')
| -rw-r--r-- | include/Support/MathExtras.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/Support/MathExtras.h b/include/Support/MathExtras.h index 125aff3b9f..1540de3fca 100644 --- a/include/Support/MathExtras.h +++ b/include/Support/MathExtras.h @@ -18,6 +18,10 @@ namespace llvm { +#if defined(log2) +# undef log2 +#endif + inline unsigned log2(uint64_t C) { unsigned getPow; for (getPow = 0; C > 1; ++getPow) |