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author | Mon P Wang <wangmp@apple.com> | 2009-03-20 05:06:58 +0000 |
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committer | Mon P Wang <wangmp@apple.com> | 2009-03-20 05:06:58 +0000 |
commit | bc65ca8de591e278fc613b5dc0e178b2ddcd215e (patch) | |
tree | 32026130fb84b4b803a977697ae45e60b80f87e1 /include | |
parent | 654c98c4f39591132027835a52dee4993618de51 (diff) | |
download | external_llvm-bc65ca8de591e278fc613b5dc0e178b2ddcd215e.zip external_llvm-bc65ca8de591e278fc613b5dc0e178b2ddcd215e.tar.gz external_llvm-bc65ca8de591e278fc613b5dc0e178b2ddcd215e.tar.bz2 |
Added option to enable generating less precise mad (multiply addition)
for those architectures that support the instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67363 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include')
-rw-r--r-- | include/llvm/Target/TargetOptions.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/include/llvm/Target/TargetOptions.h b/include/llvm/Target/TargetOptions.h index 54468f4..276ea13 100644 --- a/include/llvm/Target/TargetOptions.h +++ b/include/llvm/Target/TargetOptions.h @@ -26,6 +26,14 @@ namespace llvm { /// elimination optimization, this option should disable it. extern bool NoFramePointerElim; + /// LessPreciseFPMAD - This flag is enabled when the + /// -enable-fp-mad is specified on the command line. When this flag is off + /// (the default), the code generator is not allowed to generate mad + /// (multiply add) if the result is "less precise" than doing those operations + /// individually. + extern bool LessPreciseFPMADOption; + extern bool LessPreciseFPMAD(); + /// NoExcessFPPrecision - This flag is enabled when the /// -disable-excess-fp-precision flag is specified on the command line. When /// this flag is off (the default), the code generator is allowed to produce @@ -39,7 +47,7 @@ namespace llvm { /// this flag is off (the default), the code generator is not allowed to /// produce results that are "less precise" than IEEE allows. This includes /// use of X86 instructions like FSIN and FCOS instead of libcalls. - /// UnsafeFPMath implies FiniteOnlyFPMath. + /// UnsafeFPMath implies FiniteOnlyFPMath and LessPreciseFPMAD. extern bool UnsafeFPMath; /// FiniteOnlyFPMath - This returns true when the -enable-finite-only-fp-math |