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| author | LemonBoy <thatlemon@gmail.com> | 2020-06-09 19:17:43 -0700 |
|---|---|---|
| committer | Eli Friedman <efriedma@quicinc.com> | 2020-06-09 19:29:42 -0700 |
| commit | 28415e588f1c501967a9b596e6651787996f93ff (patch) | |
| tree | 7bd72555bd8bf07e126f3c374c1f26b0691acd93 /llvm/lib | |
| parent | ceaee253f4f3079d2786697d099e43e9f61f897a (diff) | |
| download | llvm-28415e588f1c501967a9b596e6651787996f93ff.zip llvm-28415e588f1c501967a9b596e6651787996f93ff.tar.gz llvm-28415e588f1c501967a9b596e6651787996f93ff.tar.bz2 | |
[SPARC] Lower fp16 ops to libcalls
The fp16 ops are legalized by extending/chopping them as needed.
The tests are shamelessly stolen from the RISC-V backend.
Differential Revision: https://reviews.llvm.org/D77569
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Target/Sparc/SparcISelLowering.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/lib/Target/Sparc/SparcISelLowering.cpp b/llvm/lib/Target/Sparc/SparcISelLowering.cpp index f598d423..c9743c5 100644 --- a/llvm/lib/Target/Sparc/SparcISelLowering.cpp +++ b/llvm/lib/Target/Sparc/SparcISelLowering.cpp @@ -1465,6 +1465,7 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM, // Turn FP extload into load/fpextend for (MVT VT : MVT::fp_valuetypes()) { + setLoadExtAction(ISD::EXTLOAD, VT, MVT::f16, Expand); setLoadExtAction(ISD::EXTLOAD, VT, MVT::f32, Expand); setLoadExtAction(ISD::EXTLOAD, VT, MVT::f64, Expand); } @@ -1474,6 +1475,8 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM, setLoadExtAction(ISD::SEXTLOAD, VT, MVT::i1, Promote); // Turn FP truncstore into trunc + store. + setTruncStoreAction(MVT::f32, MVT::f16, Expand); + setTruncStoreAction(MVT::f64, MVT::f16, Expand); setTruncStoreAction(MVT::f64, MVT::f32, Expand); setTruncStoreAction(MVT::f128, MVT::f32, Expand); setTruncStoreAction(MVT::f128, MVT::f64, Expand); @@ -1515,6 +1518,12 @@ SparcTargetLowering::SparcTargetLowering(const TargetMachine &TM, setOperationAction(ISD::FP_TO_UINT, MVT::i64, Custom); setOperationAction(ISD::UINT_TO_FP, MVT::i64, Custom); + // Lower f16 conversion operations into library calls + setOperationAction(ISD::FP16_TO_FP, MVT::f32, Expand); + setOperationAction(ISD::FP_TO_FP16, MVT::f32, Expand); + setOperationAction(ISD::FP16_TO_FP, MVT::f64, Expand); + setOperationAction(ISD::FP_TO_FP16, MVT::f64, Expand); + setOperationAction(ISD::BITCAST, MVT::f32, Expand); setOperationAction(ISD::BITCAST, MVT::i32, Expand); |