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| author | Bob Wilson <bob.wilson@apple.com> | 2012-08-03 21:26:24 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2012-08-03 21:26:24 +0000 |
| commit | 982dc84762fc0c2ca35e6947d648a690dd22343c (patch) | |
| tree | 35bb0712834aa0e97c82dfb442143fed8ca057a8 /include | |
| parent | 772af92cb16a5e11bd580f576643a6268e8a5bce (diff) | |
| download | external_llvm-982dc84762fc0c2ca35e6947d648a690dd22343c.zip external_llvm-982dc84762fc0c2ca35e6947d648a690dd22343c.tar.gz external_llvm-982dc84762fc0c2ca35e6947d648a690dd22343c.tar.bz2 | |
Try to reduce the compile time impact of r161232.
The previous change caused fast isel to not attempt handling any calls to
builtin functions. That included things like "printf" and caused some
noticable regressions in compile time. I wanted to avoid having fast isel
keep a separate list of functions that had to be kept in sync with what the
code in SelectionDAGBuilder.cpp was handling. I've resolved that here by
moving the list into TargetLibraryInfo. This is somewhat redundant in
SelectionDAGBuilder but it will ensure that we keep things consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161263 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
| -rw-r--r-- | include/llvm/Target/TargetLibraryInfo.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetLibraryInfo.h b/include/llvm/Target/TargetLibraryInfo.h index 34d511c..ea2874f 100644 --- a/include/llvm/Target/TargetLibraryInfo.h +++ b/include/llvm/Target/TargetLibraryInfo.h @@ -285,6 +285,31 @@ public: return getState(F) != Unavailable; } + /// hasOptimizedCodeGen - Return true if the function is both available as + /// a builtin and a candidate for optimized code generation. + bool hasOptimizedCodeGen(LibFunc::Func F) const { + if (getState(F) == Unavailable) + return false; + switch (F) { + default: break; + case LibFunc::copysign: case LibFunc::copysignf: case LibFunc::copysignl: + case LibFunc::fabs: case LibFunc::fabsf: case LibFunc::fabsl: + case LibFunc::sin: case LibFunc::sinf: case LibFunc::sinl: + case LibFunc::cos: case LibFunc::cosf: case LibFunc::cosl: + case LibFunc::sqrt: case LibFunc::sqrtf: case LibFunc::sqrtl: + case LibFunc::floor: case LibFunc::floorf: case LibFunc::floorl: + case LibFunc::nearbyint: case LibFunc::nearbyintf: case LibFunc::nearbyintl: + case LibFunc::ceil: case LibFunc::ceilf: case LibFunc::ceill: + case LibFunc::rint: case LibFunc::rintf: case LibFunc::rintl: + case LibFunc::trunc: case LibFunc::truncf: case LibFunc::truncl: + case LibFunc::log2: case LibFunc::log2f: case LibFunc::log2l: + case LibFunc::exp2: case LibFunc::exp2f: case LibFunc::exp2l: + case LibFunc::memcmp: + return true; + } + return false; + } + StringRef getName(LibFunc::Func F) const { AvailabilityState State = getState(F); if (State == Unavailable) |