diff options
| author | Justin Holewinski <jholewinski@nvidia.com> | 2013-05-21 16:51:30 +0000 |
|---|---|---|
| committer | Justin Holewinski <jholewinski@nvidia.com> | 2013-05-21 16:51:30 +0000 |
| commit | b9c26dcb2438266567ce94570bf294d00d10cc87 (patch) | |
| tree | c8f9d9b902df6cf4c70969d27be740fd92eb2f6b /lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp | |
| parent | b4b14070a46d8de683231e95067fffde6aa36750 (diff) | |
| download | llvm-b9c26dcb2438266567ce94570bf294d00d10cc87.tar.gz llvm-b9c26dcb2438266567ce94570bf294d00d10cc87.tar.bz2 llvm-b9c26dcb2438266567ce94570bf294d00d10cc87.tar.xz | |
[NVPTX] Add @llvm.nvvm.sqrt.f() intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182394 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp')
| -rw-r--r-- | lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp b/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp index 0f4c8dbce5..d4378c2322 100644 --- a/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp +++ b/lib/Target/NVPTX/NVPTXISelDAGToDAG.cpp @@ -42,6 +42,11 @@ static cl::opt<int> UsePrecDivF32( " IEEE Compliant F32 div.rnd if avaiable."), cl::init(2)); +static cl::opt<bool> +UsePrecSqrtF32("nvptx-prec-sqrtf32", + cl::desc("NVPTX Specific: 0 use sqrt.approx, 1 use sqrt.rn."), + cl::init(true)); + /// createNVPTXISelDag - This pass converts a legalized DAG into a /// NVPTX-specific DAG, ready for instruction scheduling. FunctionPass *llvm::createNVPTXISelDag(NVPTXTargetMachine &TM, @@ -74,6 +79,8 @@ NVPTXDAGToDAGISel::NVPTXDAGToDAGISel(NVPTXTargetMachine &tm, // Decide how to translate f32 div do_DIVF32_PREC = UsePrecDivF32; + // Decide how to translate f32 sqrt + do_SQRTF32_PREC = UsePrecSqrtF32; // sm less than sm_20 does not support div.rnd. Use div.full. if (do_DIVF32_PREC == 2 && !Subtarget.reqPTX20()) do_DIVF32_PREC = 1; |