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Mips: Remove global set.
Backends shouldn't retain any global state. No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183927 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
parent
1ee21dc1e1
commit
90cd06e90b
@ -18,7 +18,6 @@
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Target/TargetInstrInfo.h"
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#include <set>
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using namespace llvm;
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@ -30,9 +29,54 @@ static cl::opt<bool> DontExpandCondPseudos16(
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cl::Hidden);
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namespace {
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std::set<const char*, MipsTargetLowering::LTStr> NoHelperNeeded;
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struct Mips16Libcall {
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RTLIB::Libcall Libcall;
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const char *Name;
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bool operator<(const Mips16Libcall &RHS) const {
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return std::strcmp(Name, RHS.Name) < 0;
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}
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};
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}
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// Libcalls for which no helper is generated. Sorted by name for binary search.
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static const Mips16Libcall HardFloatLibCalls[] = {
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{ RTLIB::ADD_F64, "__mips16_adddf3" },
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{ RTLIB::ADD_F32, "__mips16_addsf3" },
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{ RTLIB::DIV_F64, "__mips16_divdf3" },
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{ RTLIB::DIV_F32, "__mips16_divsf3" },
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{ RTLIB::OEQ_F64, "__mips16_eqdf2" },
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{ RTLIB::OEQ_F32, "__mips16_eqsf2" },
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{ RTLIB::FPEXT_F32_F64, "__mips16_extendsfdf2" },
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{ RTLIB::FPTOSINT_F64_I32, "__mips16_fix_truncdfsi" },
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{ RTLIB::FPTOSINT_F32_I32, "__mips16_fix_truncsfsi" },
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{ RTLIB::SINTTOFP_I32_F64, "__mips16_floatsidf" },
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{ RTLIB::SINTTOFP_I32_F32, "__mips16_floatsisf" },
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{ RTLIB::UINTTOFP_I32_F64, "__mips16_floatunsidf" },
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{ RTLIB::UINTTOFP_I32_F32, "__mips16_floatunsisf" },
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{ RTLIB::OGE_F64, "__mips16_gedf2" },
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{ RTLIB::OGE_F32, "__mips16_gesf2" },
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{ RTLIB::OGT_F64, "__mips16_gtdf2" },
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{ RTLIB::OGT_F32, "__mips16_gtsf2" },
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{ RTLIB::OLE_F64, "__mips16_ledf2" },
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{ RTLIB::OLE_F32, "__mips16_lesf2" },
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{ RTLIB::OLT_F64, "__mips16_ltdf2" },
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{ RTLIB::OLT_F32, "__mips16_ltsf2" },
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{ RTLIB::MUL_F64, "__mips16_muldf3" },
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{ RTLIB::MUL_F32, "__mips16_mulsf3" },
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{ RTLIB::UNE_F64, "__mips16_nedf2" },
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{ RTLIB::UNE_F32, "__mips16_nesf2" },
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{ RTLIB::UNKNOWN_LIBCALL, "__mips16_ret_dc" }, // No associated libcall.
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{ RTLIB::UNKNOWN_LIBCALL, "__mips16_ret_df" }, // No associated libcall.
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{ RTLIB::UNKNOWN_LIBCALL, "__mips16_ret_sc" }, // No associated libcall.
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{ RTLIB::UNKNOWN_LIBCALL, "__mips16_ret_sf" }, // No associated libcall.
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{ RTLIB::SUB_F64, "__mips16_subdf3" },
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{ RTLIB::SUB_F32, "__mips16_subsf3" },
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{ RTLIB::FPROUND_F64_F32, "__mips16_truncdfsf2" },
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{ RTLIB::UO_F64, "__mips16_unorddf2" },
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{ RTLIB::UO_F32, "__mips16_unordsf2" }
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};
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Mips16TargetLowering::Mips16TargetLowering(MipsTargetMachine &TM)
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: MipsTargetLowering(TM) {
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//
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@ -46,13 +90,9 @@ Mips16TargetLowering::Mips16TargetLowering(MipsTargetMachine &TM)
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// Set up the register classes
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addRegisterClass(MVT::i32, &Mips::CPU16RegsRegClass);
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if (Subtarget->inMips16HardFloat()) {
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if (Subtarget->inMips16HardFloat())
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setMips16HardFloatLibCalls();
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NoHelperNeeded.insert("__mips16_ret_sf");
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NoHelperNeeded.insert("__mips16_ret_df");
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NoHelperNeeded.insert("__mips16_ret_sc");
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NoHelperNeeded.insert("__mips16_ret_dc");
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}
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setOperationAction(ISD::ATOMIC_FENCE, MVT::Other, Expand);
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setOperationAction(ISD::ATOMIC_CMP_SWAP, MVT::i32, Expand);
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setOperationAction(ISD::ATOMIC_SWAP, MVT::i32, Expand);
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@ -166,47 +206,17 @@ isEligibleForTailCallOptimization(const MipsCC &MipsCCInfo,
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return false;
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}
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void Mips16TargetLowering::setMips16LibcallName
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(RTLIB::Libcall L, const char *Name) {
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setLibcallName(L, Name);
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NoHelperNeeded.insert(Name);
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}
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void Mips16TargetLowering::setMips16HardFloatLibCalls() {
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setMips16LibcallName(RTLIB::ADD_F32, "__mips16_addsf3");
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setMips16LibcallName(RTLIB::ADD_F64, "__mips16_adddf3");
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setMips16LibcallName(RTLIB::SUB_F32, "__mips16_subsf3");
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setMips16LibcallName(RTLIB::SUB_F64, "__mips16_subdf3");
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setMips16LibcallName(RTLIB::MUL_F32, "__mips16_mulsf3");
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setMips16LibcallName(RTLIB::MUL_F64, "__mips16_muldf3");
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setMips16LibcallName(RTLIB::DIV_F32, "__mips16_divsf3");
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setMips16LibcallName(RTLIB::DIV_F64, "__mips16_divdf3");
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setMips16LibcallName(RTLIB::FPEXT_F32_F64, "__mips16_extendsfdf2");
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setMips16LibcallName(RTLIB::FPROUND_F64_F32, "__mips16_truncdfsf2");
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setMips16LibcallName(RTLIB::FPTOSINT_F32_I32, "__mips16_fix_truncsfsi");
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setMips16LibcallName(RTLIB::FPTOSINT_F64_I32, "__mips16_fix_truncdfsi");
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setMips16LibcallName(RTLIB::SINTTOFP_I32_F32, "__mips16_floatsisf");
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setMips16LibcallName(RTLIB::SINTTOFP_I32_F64, "__mips16_floatsidf");
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setMips16LibcallName(RTLIB::UINTTOFP_I32_F32, "__mips16_floatunsisf");
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setMips16LibcallName(RTLIB::UINTTOFP_I32_F64, "__mips16_floatunsidf");
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setMips16LibcallName(RTLIB::OEQ_F32, "__mips16_eqsf2");
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setMips16LibcallName(RTLIB::OEQ_F64, "__mips16_eqdf2");
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setMips16LibcallName(RTLIB::UNE_F32, "__mips16_nesf2");
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setMips16LibcallName(RTLIB::UNE_F64, "__mips16_nedf2");
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setMips16LibcallName(RTLIB::OGE_F32, "__mips16_gesf2");
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setMips16LibcallName(RTLIB::OGE_F64, "__mips16_gedf2");
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setMips16LibcallName(RTLIB::OLT_F32, "__mips16_ltsf2");
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setMips16LibcallName(RTLIB::OLT_F64, "__mips16_ltdf2");
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setMips16LibcallName(RTLIB::OLE_F32, "__mips16_lesf2");
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setMips16LibcallName(RTLIB::OLE_F64, "__mips16_ledf2");
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setMips16LibcallName(RTLIB::OGT_F32, "__mips16_gtsf2");
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setMips16LibcallName(RTLIB::OGT_F64, "__mips16_gtdf2");
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setMips16LibcallName(RTLIB::UO_F32, "__mips16_unordsf2");
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setMips16LibcallName(RTLIB::UO_F64, "__mips16_unorddf2");
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setMips16LibcallName(RTLIB::O_F32, "__mips16_unordsf2");
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setMips16LibcallName(RTLIB::O_F64, "__mips16_unorddf2");
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}
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for (unsigned I = 0; I != array_lengthof(HardFloatLibCalls); ++I) {
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assert((I == 0 || HardFloatLibCalls[I - 1] < HardFloatLibCalls[I]) &&
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"Array not sorted!");
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if (HardFloatLibCalls[I].Libcall != RTLIB::UNKNOWN_LIBCALL)
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setLibcallName(HardFloatLibCalls[I].Libcall, HardFloatLibCalls[I].Name);
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}
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setLibcallName(RTLIB::O_F64, "__mips16_unorddf2");
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setLibcallName(RTLIB::O_F32, "__mips16_unordsf2");
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}
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//
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// The Mips16 hard float is a crazy quilt inherited from gcc. I have a much
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@ -383,16 +393,19 @@ getOpndList(SmallVectorImpl<SDValue> &Ops,
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//
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bool LookupHelper = true;
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if (ExternalSymbolSDNode *S = dyn_cast<ExternalSymbolSDNode>(CLI.Callee)) {
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if (NoHelperNeeded.find(S->getSymbol()) != NoHelperNeeded.end()) {
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Mips16Libcall Find = { RTLIB::UNKNOWN_LIBCALL, S->getSymbol() };
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if (std::binary_search(HardFloatLibCalls, array_endof(HardFloatLibCalls),
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Find))
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LookupHelper = false;
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}
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}
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else if (GlobalAddressSDNode *G =
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dyn_cast<GlobalAddressSDNode>(CLI.Callee)) {
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if (NoHelperNeeded.find(G->getGlobal()->getName().data()) !=
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NoHelperNeeded.end()) {
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} else if (GlobalAddressSDNode *G =
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dyn_cast<GlobalAddressSDNode>(CLI.Callee)) {
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Mips16Libcall Find = { RTLIB::UNKNOWN_LIBCALL,
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G->getGlobal()->getName().data() };
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if (std::binary_search(HardFloatLibCalls, array_endof(HardFloatLibCalls),
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Find))
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LookupHelper = false;
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}
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}
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if (LookupHelper) Mips16HelperFunction =
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getMips16HelperFunction(CLI.RetTy, CLI.Args, NeedMips16Helper);
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@ -32,8 +32,6 @@ namespace llvm {
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unsigned NextStackOffset,
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const MipsFunctionInfo& FI) const;
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void setMips16LibcallName(RTLIB::Libcall, const char *Name);
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void setMips16HardFloatLibCalls();
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unsigned int
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