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-rw-r--r--lib/CodeGen/TargetLoweringBase.cpp110
1 files changed, 65 insertions, 45 deletions
diff --git a/lib/CodeGen/TargetLoweringBase.cpp b/lib/CodeGen/TargetLoweringBase.cpp
index 2634d71..c574fd4 100644
--- a/lib/CodeGen/TargetLoweringBase.cpp
+++ b/lib/CodeGen/TargetLoweringBase.cpp
@@ -39,7 +39,7 @@ using namespace llvm;
/// InitLibcallNames - Set default libcall names.
///
-static void InitLibcallNames(const char **Names, const TargetMachine &TM) {
+static void InitLibcallNames(const char **Names, const Triple &TT) {
Names[RTLIB::SHL_I16] = "__ashlhi3";
Names[RTLIB::SHL_I32] = "__ashlsi3";
Names[RTLIB::SHL_I64] = "__ashldi3";
@@ -384,7 +384,7 @@ static void InitLibcallNames(const char **Names, const TargetMachine &TM) {
Names[RTLIB::SYNC_FETCH_AND_UMIN_8] = "__sync_fetch_and_umin_8";
Names[RTLIB::SYNC_FETCH_AND_UMIN_16] = "__sync_fetch_and_umin_16";
- if (Triple(TM.getTargetTriple()).getEnvironment() == Triple::GNU) {
+ if (TT.getEnvironment() == Triple::GNU) {
Names[RTLIB::SINCOS_F32] = "sincosf";
Names[RTLIB::SINCOS_F64] = "sincos";
Names[RTLIB::SINCOS_F80] = "sincosl";
@@ -399,7 +399,7 @@ static void InitLibcallNames(const char **Names, const TargetMachine &TM) {
Names[RTLIB::SINCOS_PPCF128] = nullptr;
}
- if (Triple(TM.getTargetTriple()).getOS() != Triple::OpenBSD) {
+ if (TT.getOS() != Triple::OpenBSD) {
Names[RTLIB::STACKPROTECTOR_CHECK_FAIL] = "__stack_chk_fail";
} else {
// These are generally not available.
@@ -690,6 +690,7 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm,
ExceptionPointerRegister = 0;
ExceptionSelectorRegister = 0;
BooleanContents = UndefinedBooleanContent;
+ BooleanFloatContents = UndefinedBooleanContent;
BooleanVectorContents = UndefinedBooleanContent;
SchedPreferenceInfo = Sched::ILP;
JumpBufSize = 0;
@@ -702,7 +703,7 @@ TargetLoweringBase::TargetLoweringBase(const TargetMachine &tm,
SupportJumpTables = true;
MinimumJumpTableEntries = 4;
- InitLibcallNames(LibcallRoutineNames, TM);
+ InitLibcallNames(LibcallRoutineNames, Triple(TM.getTargetTriple()));
InitCmpLibcallCCs(CmpLibcallCCs);
InitLibcallCallingConvs(LibcallCallingConvs);
}
@@ -730,6 +731,10 @@ void TargetLoweringBase::initActions() {
setIndexedStoreAction(IM, (MVT::SimpleValueType)VT, Expand);
}
+ // Most backends expect to see the node which just returns the value loaded.
+ setOperationAction(ISD::ATOMIC_CMP_SWAP_WITH_SUCCESS,
+ (MVT::SimpleValueType)VT, Expand);
+
// These operations default to expand.
setOperationAction(ISD::FGETSIGN, (MVT::SimpleValueType)VT, Expand);
setOperationAction(ISD::CONCAT_VECTORS, (MVT::SimpleValueType)VT, Expand);
@@ -739,8 +744,15 @@ void TargetLoweringBase::initActions() {
// These operations default to expand for vector types.
if (VT >= MVT::FIRST_VECTOR_VALUETYPE &&
- VT <= MVT::LAST_VECTOR_VALUETYPE)
+ VT <= MVT::LAST_VECTOR_VALUETYPE) {
setOperationAction(ISD::FCOPYSIGN, (MVT::SimpleValueType)VT, Expand);
+ setOperationAction(ISD::ANY_EXTEND_VECTOR_INREG,
+ (MVT::SimpleValueType)VT, Expand);
+ setOperationAction(ISD::SIGN_EXTEND_VECTOR_INREG,
+ (MVT::SimpleValueType)VT, Expand);
+ setOperationAction(ISD::ZERO_EXTEND_VECTOR_INREG,
+ (MVT::SimpleValueType)VT, Expand);
+ }
}
// Most targets ignore the @llvm.prefetch intrinsic.
@@ -1080,24 +1092,25 @@ void TargetLoweringBase::computeRegisterProperties() {
// Loop over all of the vector value types to see which need transformations.
for (unsigned i = MVT::FIRST_VECTOR_VALUETYPE;
i <= (unsigned)MVT::LAST_VECTOR_VALUETYPE; ++i) {
- MVT VT = (MVT::SimpleValueType)i;
- if (isTypeLegal(VT)) continue;
+ MVT VT = (MVT::SimpleValueType) i;
+ if (isTypeLegal(VT))
+ continue;
- // Determine if there is a legal wider type. If so, we should promote to
- // that wider vector type.
MVT EltVT = VT.getVectorElementType();
unsigned NElts = VT.getVectorNumElements();
- if (NElts != 1 && !shouldSplitVectorType(VT)) {
- bool IsLegalWiderType = false;
- // First try to promote the elements of integer vectors. If no legal
- // promotion was found, fallback to the widen-vector method.
- for (unsigned nVT = i+1; nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
- MVT SVT = (MVT::SimpleValueType)nVT;
+ bool IsLegalWiderType = false;
+ LegalizeTypeAction PreferredAction = getPreferredVectorAction(VT);
+ switch (PreferredAction) {
+ case TypePromoteInteger: {
+ // Try to promote the elements of integer vectors. If no legal
+ // promotion was found, fall through to the widen-vector method.
+ for (unsigned nVT = i + 1; nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
+ MVT SVT = (MVT::SimpleValueType) nVT;
// Promote vectors of integers to vectors with the same number
// of elements, with a wider element type.
if (SVT.getVectorElementType().getSizeInBits() > EltVT.getSizeInBits()
- && SVT.getVectorNumElements() == NElts &&
- isTypeLegal(SVT) && SVT.getScalarType().isInteger()) {
+ && SVT.getVectorNumElements() == NElts && isTypeLegal(SVT)
+ && SVT.getScalarType().isInteger()) {
TransformToType[i] = SVT;
RegisterTypeForVT[i] = SVT;
NumRegistersForVT[i] = 1;
@@ -1106,15 +1119,15 @@ void TargetLoweringBase::computeRegisterProperties() {
break;
}
}
-
- if (IsLegalWiderType) continue;
-
+ if (IsLegalWiderType)
+ break;
+ }
+ case TypeWidenVector: {
// Try to widen the vector.
- for (unsigned nVT = i+1; nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
- MVT SVT = (MVT::SimpleValueType)nVT;
- if (SVT.getVectorElementType() == EltVT &&
- SVT.getVectorNumElements() > NElts &&
- isTypeLegal(SVT)) {
+ for (unsigned nVT = i + 1; nVT <= MVT::LAST_VECTOR_VALUETYPE; ++nVT) {
+ MVT SVT = (MVT::SimpleValueType) nVT;
+ if (SVT.getVectorElementType() == EltVT
+ && SVT.getVectorNumElements() > NElts && isTypeLegal(SVT)) {
TransformToType[i] = SVT;
RegisterTypeForVT[i] = SVT;
NumRegistersForVT[i] = 1;
@@ -1123,27 +1136,34 @@ void TargetLoweringBase::computeRegisterProperties() {
break;
}
}
- if (IsLegalWiderType) continue;
+ if (IsLegalWiderType)
+ break;
}
-
- MVT IntermediateVT;
- MVT RegisterVT;
- unsigned NumIntermediates;
- NumRegistersForVT[i] =
- getVectorTypeBreakdownMVT(VT, IntermediateVT, NumIntermediates,
- RegisterVT, this);
- RegisterTypeForVT[i] = RegisterVT;
-
- MVT NVT = VT.getPow2VectorType();
- if (NVT == VT) {
- // Type is already a power of 2. The default action is to split.
- TransformToType[i] = MVT::Other;
- unsigned NumElts = VT.getVectorNumElements();
- ValueTypeActions.setTypeAction(VT,
- NumElts > 1 ? TypeSplitVector : TypeScalarizeVector);
- } else {
- TransformToType[i] = NVT;
- ValueTypeActions.setTypeAction(VT, TypeWidenVector);
+ case TypeSplitVector:
+ case TypeScalarizeVector: {
+ MVT IntermediateVT;
+ MVT RegisterVT;
+ unsigned NumIntermediates;
+ NumRegistersForVT[i] = getVectorTypeBreakdownMVT(VT, IntermediateVT,
+ NumIntermediates, RegisterVT, this);
+ RegisterTypeForVT[i] = RegisterVT;
+
+ MVT NVT = VT.getPow2VectorType();
+ if (NVT == VT) {
+ // Type is already a power of 2. The default action is to split.
+ TransformToType[i] = MVT::Other;
+ if (PreferredAction == TypeScalarizeVector)
+ ValueTypeActions.setTypeAction(VT, TypeScalarizeVector);
+ else
+ ValueTypeActions.setTypeAction(VT, TypeSplitVector);
+ } else {
+ TransformToType[i] = NVT;
+ ValueTypeActions.setTypeAction(VT, TypeWidenVector);
+ }
+ break;
+ }
+ default:
+ llvm_unreachable("Unknown vector legalization action!");
}
}
generated by cgit v1.1 at 2024-09-22 06:04:53 +0000