diff options
| author | Hal Finkel <hfinkel@anl.gov> | 2013-08-07 22:49:12 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2013-08-07 22:49:12 +0000 |
| commit | 41418d17cced656f91038b2482bc9d173b4974b0 (patch) | |
| tree | ad9f68077baafc782e15513f310a8377e55c817a /lib/CodeGen/TargetLoweringBase.cpp | |
| parent | 6fa33f5dd945015d79be42c5cff146e4e2b7c4f3 (diff) | |
Add ISD::FROUND for libm round()
All libm floating-point rounding functions, except for round(), had their own
ISD nodes. Recent PowerPC cores have an instruction for round(), and so here I'm
adding ISD::FROUND so that round() can be custom lowered as well.
For the most part, this is straightforward. I've added an intrinsic
and a matching ISD node just like those for nearbyint() and friends. The
SelectionDAG pattern I've named frnd (because ISD::FP_ROUND has already claimed
fround).
This will be used by the PowerPC backend in a follow-up commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@187926 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/TargetLoweringBase.cpp')
| -rw-r--r-- | lib/CodeGen/TargetLoweringBase.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp index 8d8f81b0032..c3afa776c00 100644 --- a/lib/CodeGen/TargetLoweringBase.cpp +++ b/lib/CodeGen/TargetLoweringBase.cpp @@ -191,6 +191,11 @@ static void InitLibcallNames(const char **Names, const TargetMachine &TM) { Names[RTLIB::NEARBYINT_F80] = "nearbyintl"; Names[RTLIB::NEARBYINT_F128] = "nearbyintl"; Names[RTLIB::NEARBYINT_PPCF128] = "nearbyintl"; + Names[RTLIB::ROUND_F32] = "roundf"; + Names[RTLIB::ROUND_F64] = "round"; + Names[RTLIB::ROUND_F80] = "roundl"; + Names[RTLIB::ROUND_F128] = "roundl"; + Names[RTLIB::ROUND_PPCF128] = "roundl"; Names[RTLIB::FLOOR_F32] = "floorf"; Names[RTLIB::FLOOR_F64] = "floor"; Names[RTLIB::FLOOR_F80] = "floorl"; @@ -706,6 +711,7 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::FNEARBYINT, MVT::f16, Expand); setOperationAction(ISD::FCEIL, MVT::f16, Expand); setOperationAction(ISD::FRINT, MVT::f16, Expand); + setOperationAction(ISD::FROUND, MVT::f16, Expand); setOperationAction(ISD::FTRUNC, MVT::f16, Expand); setOperationAction(ISD::FLOG , MVT::f32, Expand); setOperationAction(ISD::FLOG2, MVT::f32, Expand); @@ -716,6 +722,7 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::FNEARBYINT, MVT::f32, Expand); setOperationAction(ISD::FCEIL, MVT::f32, Expand); setOperationAction(ISD::FRINT, MVT::f32, Expand); + setOperationAction(ISD::FROUND, MVT::f32, Expand); setOperationAction(ISD::FTRUNC, MVT::f32, Expand); setOperationAction(ISD::FLOG , MVT::f64, Expand); setOperationAction(ISD::FLOG2, MVT::f64, Expand); @@ -726,6 +733,7 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::FNEARBYINT, MVT::f64, Expand); setOperationAction(ISD::FCEIL, MVT::f64, Expand); setOperationAction(ISD::FRINT, MVT::f64, Expand); + setOperationAction(ISD::FROUND, MVT::f64, Expand); setOperationAction(ISD::FTRUNC, MVT::f64, Expand); setOperationAction(ISD::FLOG , MVT::f128, Expand); setOperationAction(ISD::FLOG2, MVT::f128, Expand); @@ -736,6 +744,7 @@ void TargetLoweringBase::initActions() { setOperationAction(ISD::FNEARBYINT, MVT::f128, Expand); setOperationAction(ISD::FCEIL, MVT::f128, Expand); setOperationAction(ISD::FRINT, MVT::f128, Expand); + setOperationAction(ISD::FROUND, MVT::f128, Expand); setOperationAction(ISD::FTRUNC, MVT::f128, Expand); // Default ISD::TRAP to expand (which turns it into abort). |