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synced 2024-08-17 05:29:24 +00:00
Fix weird think-o and unbreak build on all gcc-3.4.x-based platforms (e.g. mingw)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57106 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -17,6 +17,7 @@
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#include <cctype>
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using namespace llvm;
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const char *const llvm::arm_asm_table[] = {
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"{r0}", "r0",
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"{r1}", "r1",
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@ -42,15 +43,6 @@ const char *const llvm::arm_asm_table[] = {
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"{cc}", "cc",
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0,0};
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// Instantiate 'common' cases.
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TEMPLATE_INSTANTIATION(class ARMTargetAsmInfo<TargetAsmInfo>);
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TEMPLATE_INSTANTIATION(
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unsigned ARMTargetAsmInfo<TargetAsmInfo>::getInlineAsmLength(const char*) const);
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TEMPLATE_INSTANTIATION(
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unsigned ARMTargetAsmInfo<TargetAsmInfo>::countArguments(const char*) const);
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TEMPLATE_INSTANTIATION(
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unsigned ARMTargetAsmInfo<TargetAsmInfo>::countString(const char*) const);
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ARMDarwinTargetAsmInfo::ARMDarwinTargetAsmInfo(const ARMTargetMachine &TM):
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ARMTargetAsmInfo<DarwinTargetAsmInfo>(TM) {
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Subtarget = &DTM->getSubtarget<ARMSubtarget>();
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@ -288,3 +280,6 @@ unsigned ARMTargetAsmInfo<BaseTAI>::getInlineAsmLength(const char *s) const {
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free(s_copy);
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return Length;
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}
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// Instantiate default implementation.
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TEMPLATE_INSTANTIATION(class ARMTargetAsmInfo<TargetAsmInfo>);
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@ -19,8 +19,6 @@
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using namespace llvm;
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using namespace llvm::dwarf;
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TEMPLATE_INSTANTIATION(class PPCTargetAsmInfo<TargetAsmInfo>);
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PPCDarwinTargetAsmInfo::PPCDarwinTargetAsmInfo(const PPCTargetMachine &TM):
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PPCTargetAsmInfo<DarwinTargetAsmInfo>(TM) {
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PCSymbol = ".";
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@ -148,3 +146,6 @@ PPCLinuxTargetAsmInfo::PreferredEHDataFormat(DwarfEncoding::Target Reason,
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// We really need to write something here.
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return TargetAsmInfo::PreferredEHDataFormat(Reason, Global);
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}
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// Instantiate default implementation.
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TEMPLATE_INSTANTIATION(class PPCTargetAsmInfo<TargetAsmInfo>);
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@ -37,93 +37,6 @@ const char *const llvm::x86_asm_table[] = {
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"{cc}", "cc",
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0,0};
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TEMPLATE_INSTANTIATION(class X86TargetAsmInfo<TargetAsmInfo>);
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TEMPLATE_INSTANTIATION(
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bool X86TargetAsmInfo<TargetAsmInfo>::ExpandInlineAsm(CallInst*) const);
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TEMPLATE_INSTANTIATION(
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bool X86TargetAsmInfo<TargetAsmInfo>::LowerToBSwap(CallInst*) const);
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template <class BaseTAI>
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bool X86TargetAsmInfo<BaseTAI>::LowerToBSwap(CallInst *CI) const {
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// FIXME: this should verify that we are targetting a 486 or better. If not,
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// we will turn this bswap into something that will be lowered to logical ops
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// instead of emitting the bswap asm. For now, we don't support 486 or lower
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// so don't worry about this.
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// Verify this is a simple bswap.
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if (CI->getNumOperands() != 2 ||
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CI->getType() != CI->getOperand(1)->getType() ||
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!CI->getType()->isInteger())
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return false;
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const IntegerType *Ty = dyn_cast<IntegerType>(CI->getType());
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if (!Ty || Ty->getBitWidth() % 16 != 0)
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return false;
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// Okay, we can do this xform, do so now.
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const Type *Tys[] = { Ty };
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Module *M = CI->getParent()->getParent()->getParent();
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Constant *Int = Intrinsic::getDeclaration(M, Intrinsic::bswap, Tys, 1);
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Value *Op = CI->getOperand(1);
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Op = CallInst::Create(Int, Op, CI->getName(), CI);
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CI->replaceAllUsesWith(Op);
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CI->eraseFromParent();
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return true;
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}
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template <class BaseTAI>
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bool X86TargetAsmInfo<BaseTAI>::ExpandInlineAsm(CallInst *CI) const {
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InlineAsm *IA = cast<InlineAsm>(CI->getCalledValue());
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std::vector<InlineAsm::ConstraintInfo> Constraints = IA->ParseConstraints();
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std::string AsmStr = IA->getAsmString();
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// TODO: should remove alternatives from the asmstring: "foo {a|b}" -> "foo a"
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std::vector<std::string> AsmPieces;
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SplitString(AsmStr, AsmPieces, "\n"); // ; as separator?
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switch (AsmPieces.size()) {
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default: return false;
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case 1:
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AsmStr = AsmPieces[0];
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AsmPieces.clear();
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SplitString(AsmStr, AsmPieces, " \t"); // Split with whitespace.
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// bswap $0
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if (AsmPieces.size() == 2 &&
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AsmPieces[0] == "bswap" && AsmPieces[1] == "$0") {
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// No need to check constraints, nothing other than the equivalent of
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// "=r,0" would be valid here.
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return LowerToBSwap(CI);
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}
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break;
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case 3:
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if (CI->getType() == Type::Int64Ty && Constraints.size() >= 2 &&
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Constraints[0].Codes.size() == 1 && Constraints[0].Codes[0] == "A" &&
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Constraints[1].Codes.size() == 1 && Constraints[1].Codes[0] == "0") {
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// bswap %eax / bswap %edx / xchgl %eax, %edx -> llvm.bswap.i64
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std::vector<std::string> Words;
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SplitString(AsmPieces[0], Words, " \t");
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if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%eax") {
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Words.clear();
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SplitString(AsmPieces[1], Words, " \t");
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if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%edx") {
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Words.clear();
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SplitString(AsmPieces[2], Words, " \t,");
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if (Words.size() == 3 && Words[0] == "xchgl" && Words[1] == "%eax" &&
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Words[2] == "%edx") {
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return LowerToBSwap(CI);
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}
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}
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}
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}
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break;
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}
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return false;
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}
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X86DarwinTargetAsmInfo::X86DarwinTargetAsmInfo(const X86TargetMachine &TM):
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X86TargetAsmInfo<DarwinTargetAsmInfo>(TM) {
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const X86Subtarget* Subtarget = &DTM->getSubtarget<X86Subtarget>();
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@ -433,3 +346,87 @@ X86WinTargetAsmInfo::X86WinTargetAsmInfo(const X86TargetMachine &TM):
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DataSectionStartSuffix = "\tsegment 'DATA'";
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SectionEndDirectiveSuffix = "\tends\n";
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}
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template <class BaseTAI>
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bool X86TargetAsmInfo<BaseTAI>::LowerToBSwap(CallInst *CI) const {
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// FIXME: this should verify that we are targetting a 486 or better. If not,
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// we will turn this bswap into something that will be lowered to logical ops
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// instead of emitting the bswap asm. For now, we don't support 486 or lower
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// so don't worry about this.
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// Verify this is a simple bswap.
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if (CI->getNumOperands() != 2 ||
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CI->getType() != CI->getOperand(1)->getType() ||
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!CI->getType()->isInteger())
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return false;
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const IntegerType *Ty = dyn_cast<IntegerType>(CI->getType());
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if (!Ty || Ty->getBitWidth() % 16 != 0)
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return false;
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// Okay, we can do this xform, do so now.
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const Type *Tys[] = { Ty };
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Module *M = CI->getParent()->getParent()->getParent();
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Constant *Int = Intrinsic::getDeclaration(M, Intrinsic::bswap, Tys, 1);
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Value *Op = CI->getOperand(1);
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Op = CallInst::Create(Int, Op, CI->getName(), CI);
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CI->replaceAllUsesWith(Op);
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CI->eraseFromParent();
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return true;
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}
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template <class BaseTAI>
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bool X86TargetAsmInfo<BaseTAI>::ExpandInlineAsm(CallInst *CI) const {
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InlineAsm *IA = cast<InlineAsm>(CI->getCalledValue());
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std::vector<InlineAsm::ConstraintInfo> Constraints = IA->ParseConstraints();
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std::string AsmStr = IA->getAsmString();
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// TODO: should remove alternatives from the asmstring: "foo {a|b}" -> "foo a"
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std::vector<std::string> AsmPieces;
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SplitString(AsmStr, AsmPieces, "\n"); // ; as separator?
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switch (AsmPieces.size()) {
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default: return false;
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case 1:
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AsmStr = AsmPieces[0];
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AsmPieces.clear();
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SplitString(AsmStr, AsmPieces, " \t"); // Split with whitespace.
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// bswap $0
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if (AsmPieces.size() == 2 &&
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AsmPieces[0] == "bswap" && AsmPieces[1] == "$0") {
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// No need to check constraints, nothing other than the equivalent of
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// "=r,0" would be valid here.
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return LowerToBSwap(CI);
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}
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break;
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case 3:
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if (CI->getType() == Type::Int64Ty && Constraints.size() >= 2 &&
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Constraints[0].Codes.size() == 1 && Constraints[0].Codes[0] == "A" &&
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Constraints[1].Codes.size() == 1 && Constraints[1].Codes[0] == "0") {
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// bswap %eax / bswap %edx / xchgl %eax, %edx -> llvm.bswap.i64
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std::vector<std::string> Words;
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SplitString(AsmPieces[0], Words, " \t");
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if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%eax") {
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Words.clear();
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SplitString(AsmPieces[1], Words, " \t");
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if (Words.size() == 2 && Words[0] == "bswap" && Words[1] == "%edx") {
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Words.clear();
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SplitString(AsmPieces[2], Words, " \t,");
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if (Words.size() == 3 && Words[0] == "xchgl" && Words[1] == "%eax" &&
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Words[2] == "%edx") {
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return LowerToBSwap(CI);
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}
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}
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}
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}
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break;
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}
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return false;
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}
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// Instantiate default implementation.
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TEMPLATE_INSTANTIATION(class X86TargetAsmInfo<TargetAsmInfo>);
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