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AVR: Move runtime libcall name setting out of TargetLowering #142545

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Merged
merged 1 commit into from
Jun 4, 2025
Merged

AVR: Move runtime libcall name setting out of TargetLowering #142545

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18 changes: 18 additions & 0 deletions llvm/lib/IR/RuntimeLibcalls.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -265,6 +265,24 @@ void RuntimeLibcallsInfo::initLibcalls(const Triple &TT) {
setLibcallName(RTLIB::UREM_I8, nullptr);
setLibcallName(RTLIB::UREM_I16, nullptr);
setLibcallName(RTLIB::UREM_I32, nullptr);

// Division and modulus rtlib functions
setLibcallName(RTLIB::SDIVREM_I8, "__divmodqi4");
setLibcallName(RTLIB::SDIVREM_I16, "__divmodhi4");
setLibcallName(RTLIB::SDIVREM_I32, "__divmodsi4");
setLibcallName(RTLIB::UDIVREM_I8, "__udivmodqi4");
setLibcallName(RTLIB::UDIVREM_I16, "__udivmodhi4");
setLibcallName(RTLIB::UDIVREM_I32, "__udivmodsi4");

// Several of the runtime library functions use a special calling conv
setLibcallCallingConv(RTLIB::SDIVREM_I8, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::SDIVREM_I16, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::UDIVREM_I8, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::UDIVREM_I16, CallingConv::AVR_BUILTIN);

// Trigonometric rtlib functions
setLibcallName(RTLIB::SIN_F32, "sin");
setLibcallName(RTLIB::COS_F32, "cos");
}

if (!TT.isWasm()) {
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18 changes: 0 additions & 18 deletions llvm/lib/Target/AVR/AVRISelLowering.cpp
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Expand Up @@ -198,24 +198,6 @@ AVRTargetLowering::AVRTargetLowering(const AVRTargetMachine &TM,
// improvements in how we treat 16-bit "registers" to be feasible.
}

// Division and modulus rtlib functions
setLibcallName(RTLIB::SDIVREM_I8, "__divmodqi4");
setLibcallName(RTLIB::SDIVREM_I16, "__divmodhi4");
setLibcallName(RTLIB::SDIVREM_I32, "__divmodsi4");
setLibcallName(RTLIB::UDIVREM_I8, "__udivmodqi4");
setLibcallName(RTLIB::UDIVREM_I16, "__udivmodhi4");
setLibcallName(RTLIB::UDIVREM_I32, "__udivmodsi4");

// Several of the runtime library functions use a special calling conv
setLibcallCallingConv(RTLIB::SDIVREM_I8, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::SDIVREM_I16, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::UDIVREM_I8, CallingConv::AVR_BUILTIN);
setLibcallCallingConv(RTLIB::UDIVREM_I16, CallingConv::AVR_BUILTIN);

// Trigonometric rtlib functions
setLibcallName(RTLIB::SIN_F32, "sin");
setLibcallName(RTLIB::COS_F32, "cos");

setMinFunctionAlignment(Align(2));
setMinimumJumpTableEntries(UINT_MAX);
}
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