[clang] [HLSL] Vector vector standard conversions (PR #71098)
via cfe-commits
cfe-commits at lists.llvm.org
Thu Nov 2 13:03:33 PDT 2023
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-hlsl
Author: Chris B (llvm-beanz)
<details>
<summary>Changes</summary>
HLSL supports vector truncation and element conversions as part of standard conversion sequences. The vector truncation conversion is a C++ second conversion in the conversion sequence. If a vector truncation is in a conversion sequence an element conversion may occur after it before the standard C++ third conversion.
Vector element conversions can be boolean conversions, floating point or integral conversions or promotions.
[HLSL Draft Specification](https://microsoft.github.io/hlsl-specs/specs/hlsl.pdf)
---
Patch is 41.58 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/71098.diff
19 Files Affected:
- (modified) clang/include/clang/AST/OperationKinds.def (+3)
- (modified) clang/include/clang/Basic/DiagnosticSemaKinds.td (+3)
- (modified) clang/include/clang/Sema/Overload.h (+11-1)
- (modified) clang/lib/AST/Expr.cpp (+1)
- (modified) clang/lib/AST/ExprConstant.cpp (+2)
- (modified) clang/lib/CodeGen/CGExpr.cpp (+2)
- (modified) clang/lib/CodeGen/CGExprAgg.cpp (+2)
- (modified) clang/lib/CodeGen/CGExprComplex.cpp (+1)
- (modified) clang/lib/CodeGen/CGExprConstant.cpp (+1)
- (modified) clang/lib/CodeGen/CGExprScalar.cpp (+20-3)
- (modified) clang/lib/Edit/RewriteObjCFoundationAPI.cpp (+4)
- (modified) clang/lib/Sema/SemaChecking.cpp (+9-2)
- (modified) clang/lib/Sema/SemaExprCXX.cpp (+83)
- (modified) clang/lib/Sema/SemaInit.cpp (+1-1)
- (modified) clang/lib/Sema/SemaOverload.cpp (+110-34)
- (modified) clang/lib/StaticAnalyzer/Core/ExprEngineC.cpp (+2-1)
- (added) clang/test/CodeGenHLSL/BasicFeatures/standard_conversion_sequences.hlsl (+119)
- (modified) clang/test/SemaHLSL/BuiltIns/vector-constructors-erros.hlsl (+1-1)
- (added) clang/test/SemaHLSL/standard_conversion_sequences.hlsl (+92)
``````````diff
diff --git a/clang/include/clang/AST/OperationKinds.def b/clang/include/clang/AST/OperationKinds.def
index 8dd98730dff7426..e497fe4d1f93ff4 100644
--- a/clang/include/clang/AST/OperationKinds.def
+++ b/clang/include/clang/AST/OperationKinds.def
@@ -361,6 +361,9 @@ CAST_OPERATION(AddressSpaceConversion)
// Convert an integer initializer to an OpenCL sampler.
CAST_OPERATION(IntToOCLSampler)
+// Truncate a vector type (HLSL only).
+CAST_OPERATION(VectorTruncation)
+
//===- Binary Operations -------------------------------------------------===//
// Operators listed in order of precedence.
// Note that additions to this should also update the StmtVisitor class,
diff --git a/clang/include/clang/Basic/DiagnosticSemaKinds.td b/clang/include/clang/Basic/DiagnosticSemaKinds.td
index 224c0df7f1fb71f..01ba3a24e0018ba 100644
--- a/clang/include/clang/Basic/DiagnosticSemaKinds.td
+++ b/clang/include/clang/Basic/DiagnosticSemaKinds.td
@@ -12005,6 +12005,9 @@ def err_hlsl_pointers_unsupported : Error<
def err_hlsl_operator_unsupported : Error<
"the '%select{&|*|->}0' operator is unsupported in HLSL">;
+def warn_hlsl_impcast_vector_truncation : Warning<
+ "implicit conversion truncates vector: %0 to %1">, InGroup<Conversion>;
+
// Layout randomization diagnostics.
def err_non_designated_init_used : Error<
"a randomized struct can only be initialized with a designated initializer">;
diff --git a/clang/include/clang/Sema/Overload.h b/clang/include/clang/Sema/Overload.h
index a97968dc7b20967..0d4aaa5ff7c766b 100644
--- a/clang/include/clang/Sema/Overload.h
+++ b/clang/include/clang/Sema/Overload.h
@@ -192,6 +192,9 @@ class Sema;
/// C-only conversion between pointers with incompatible types
ICK_Incompatible_Pointer_Conversion,
+ /// HLSL vector truncation.
+ ICK_HLSL_Vector_Truncation,
+
/// The number of conversion kinds
ICK_Num_Conversion_Kinds,
};
@@ -271,6 +274,12 @@ class Sema;
/// pointer-to-member conversion, or boolean conversion.
ImplicitConversionKind Second : 8;
+ /// Element - Between the second and third conversion a vector or matrix
+ /// element conversion may occur. If this is not ICK_Identity this
+ /// conversion is applied element-wise to each element in the vector or
+ /// matrix.
+ ImplicitConversionKind Element : 8;
+
/// Third - The third conversion can be a qualification conversion
/// or a function conversion.
ImplicitConversionKind Third : 8;
@@ -357,7 +366,8 @@ class Sema;
void setAsIdentityConversion();
bool isIdentityConversion() const {
- return Second == ICK_Identity && Third == ICK_Identity;
+ return Second == ICK_Identity && Element == ICK_Identity &&
+ Third == ICK_Identity;
}
ImplicitConversionRank getRank() const;
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index 5d3b510df1ef9b3..d18514949b1eb37 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -1882,6 +1882,7 @@ bool CastExpr::CastConsistency() const {
case CK_FixedPointToIntegral:
case CK_IntegralToFixedPoint:
case CK_MatrixCast:
+ case CK_VectorTruncation:
assert(!getType()->isBooleanType() && "unheralded conversion to bool");
goto CheckNoBasePath;
diff --git a/clang/lib/AST/ExprConstant.cpp b/clang/lib/AST/ExprConstant.cpp
index b6b1e6617dffaa9..f0e44ab0c85a3ea 100644
--- a/clang/lib/AST/ExprConstant.cpp
+++ b/clang/lib/AST/ExprConstant.cpp
@@ -13888,6 +13888,7 @@ bool IntExprEvaluator::VisitCastExpr(const CastExpr *E) {
case CK_FixedPointCast:
case CK_IntegralToFixedPoint:
case CK_MatrixCast:
+ case CK_VectorTruncation:
llvm_unreachable("invalid cast kind for integral value");
case CK_BitCast:
@@ -14726,6 +14727,7 @@ bool ComplexExprEvaluator::VisitCastExpr(const CastExpr *E) {
case CK_FixedPointToIntegral:
case CK_IntegralToFixedPoint:
case CK_MatrixCast:
+ case CK_VectorTruncation:
llvm_unreachable("invalid cast kind for complex value");
case CK_LValueToRValue:
diff --git a/clang/lib/CodeGen/CGExpr.cpp b/clang/lib/CodeGen/CGExpr.cpp
index 54a1d300a9ac738..0e0f7f205eae9f6 100644
--- a/clang/lib/CodeGen/CGExpr.cpp
+++ b/clang/lib/CodeGen/CGExpr.cpp
@@ -4858,6 +4858,7 @@ LValue CodeGenFunction::EmitCastLValue(const CastExpr *E) {
case CK_FixedPointToIntegral:
case CK_IntegralToFixedPoint:
case CK_MatrixCast:
+ case CK_VectorTruncation:
return EmitUnsupportedLValue(E, "unexpected cast lvalue");
case CK_Dependent:
@@ -4985,6 +4986,7 @@ LValue CodeGenFunction::EmitCastLValue(const CastExpr *E) {
return MakeAddrLValue(V, E->getType(), LV.getBaseInfo(),
CGM.getTBAAInfoForSubobject(LV, E->getType()));
}
+
case CK_ZeroToOCLOpaqueType:
llvm_unreachable("NULL to OpenCL opaque type lvalue cast is not valid");
}
diff --git a/clang/lib/CodeGen/CGExprAgg.cpp b/clang/lib/CodeGen/CGExprAgg.cpp
index 810b28f25fa18bf..f9278133e5ddc6b 100644
--- a/clang/lib/CodeGen/CGExprAgg.cpp
+++ b/clang/lib/CodeGen/CGExprAgg.cpp
@@ -930,6 +930,7 @@ void AggExprEmitter::VisitCastExpr(CastExpr *E) {
case CK_BuiltinFnToFnPtr:
case CK_ZeroToOCLOpaqueType:
case CK_MatrixCast:
+ case CK_VectorTruncation:
case CK_IntToOCLSampler:
case CK_FloatingToFixedPoint:
@@ -1454,6 +1455,7 @@ static bool castPreservesZero(const CastExpr *CE) {
case CK_MatrixCast:
case CK_NonAtomicToAtomic:
case CK_AtomicToNonAtomic:
+ case CK_VectorTruncation:
return true;
case CK_BaseToDerivedMemberPointer:
diff --git a/clang/lib/CodeGen/CGExprComplex.cpp b/clang/lib/CodeGen/CGExprComplex.cpp
index f3cbd1d0451ebe4..45862701d59bb4a 100644
--- a/clang/lib/CodeGen/CGExprComplex.cpp
+++ b/clang/lib/CodeGen/CGExprComplex.cpp
@@ -556,6 +556,7 @@ ComplexPairTy ComplexExprEmitter::EmitCast(CastKind CK, Expr *Op,
case CK_FixedPointToIntegral:
case CK_IntegralToFixedPoint:
case CK_MatrixCast:
+ case CK_VectorTruncation:
llvm_unreachable("invalid cast kind for complex value");
case CK_FloatingRealToComplex:
diff --git a/clang/lib/CodeGen/CGExprConstant.cpp b/clang/lib/CodeGen/CGExprConstant.cpp
index cd91a698a9336f8..b43eb1891481237 100644
--- a/clang/lib/CodeGen/CGExprConstant.cpp
+++ b/clang/lib/CodeGen/CGExprConstant.cpp
@@ -1225,6 +1225,7 @@ class ConstExprEmitter :
case CK_IntegralToFixedPoint:
case CK_ZeroToOCLOpaqueType:
case CK_MatrixCast:
+ case CK_VectorTruncation:
return nullptr;
}
llvm_unreachable("Invalid CastKind");
diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index 1a7a3f97bb779a0..61641c1131c39dd 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -610,6 +610,8 @@ class ScalarExprEmitter
llvm::Value *EmitScalarPrePostIncDec(const UnaryOperator *E, LValue LV,
bool isInc, bool isPre);
+ llvm::Value *EmitVectorElementConversion(QualType SrcType, QualType DstType,
+ llvm::Value *Src);
Value *VisitUnaryAddrOf(const UnaryOperator *E) {
if (isa<MemberPointerType>(E->getType())) // never sugared
@@ -1422,6 +1424,9 @@ Value *ScalarExprEmitter::EmitScalarConversion(Value *Src, QualType SrcType,
return Builder.CreateVectorSplat(NumElements, Src, "splat");
}
+ if (SrcType->isExtVectorType() && DstType->isExtVectorType())
+ return EmitVectorElementConversion(SrcType, DstType, Src);
+
if (SrcType->isMatrixType() && DstType->isMatrixType())
return EmitScalarCast(Src, SrcType, DstType, SrcTy, DstTy, Opts);
@@ -1701,10 +1706,14 @@ Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
}
Value *ScalarExprEmitter::VisitConvertVectorExpr(ConvertVectorExpr *E) {
- QualType SrcType = E->getSrcExpr()->getType(),
- DstType = E->getType();
+ QualType SrcType = E->getSrcExpr()->getType(), DstType = E->getType();
+ Value *Src = CGF.EmitScalarExpr(E->getSrcExpr());
+ return EmitVectorElementConversion(SrcType, DstType, Src);
+}
- Value *Src = CGF.EmitScalarExpr(E->getSrcExpr());
+llvm::Value *ScalarExprEmitter::EmitVectorElementConversion(QualType SrcType,
+ QualType DstType,
+ Value *Src) {
SrcType = CGF.getContext().getCanonicalType(SrcType);
DstType = CGF.getContext().getCanonicalType(DstType);
@@ -2475,6 +2484,14 @@ Value *ScalarExprEmitter::VisitCastExpr(CastExpr *CE) {
case CK_IntToOCLSampler:
return CGF.CGM.createOpenCLIntToSamplerConversion(E, CGF);
+
+ case CK_VectorTruncation: {
+ assert(DestTy->isVectorType() && "Expected dest type to be vector type");
+ Value *Vec = Visit(const_cast<Expr *>(E));
+ SmallVector<int, 16> Mask;
+ Mask.insert(Mask.begin(), DestTy->getAs<VectorType>()->getNumElements(), 0);
+ return Builder.CreateShuffleVector(Vec, Mask, "trunc");
+ }
} // end of switch
diff --git a/clang/lib/Edit/RewriteObjCFoundationAPI.cpp b/clang/lib/Edit/RewriteObjCFoundationAPI.cpp
index 736e450574d9f80..5ff9e3ee39d2a35 100644
--- a/clang/lib/Edit/RewriteObjCFoundationAPI.cpp
+++ b/clang/lib/Edit/RewriteObjCFoundationAPI.cpp
@@ -1086,6 +1086,10 @@ static bool rewriteToNumericBoxedExpression(const ObjCMessageExpr *Msg,
case CK_BooleanToSignedIntegral:
llvm_unreachable("OpenCL-specific cast in Objective-C?");
+
+ case CK_VectorTruncation:
+ llvm_unreachable("HLSL-specific cast in Objective-C?");
+ break;
case CK_FloatingToFixedPoint:
case CK_FixedPointToFloating:
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
index 1842a783dc29aaa..0729d92d642aa57 100644
--- a/clang/lib/Sema/SemaChecking.cpp
+++ b/clang/lib/Sema/SemaChecking.cpp
@@ -15416,11 +15416,18 @@ static void CheckImplicitConversion(Sema &S, Expr *E, QualType T,
if (S.SourceMgr.isInSystemMacro(CC))
return;
return DiagnoseImpCast(S, E, T, CC, diag::warn_impcast_vector_scalar);
+ } else if (S.getLangOpts().HLSL &&
+ Target->getAs<VectorType>()->getNumElements() <
+ Source->getAs<VectorType>()->getNumElements()) {
+ // Diagnose vector truncation but don't return. We may also want to
+ // diagnose an element conversion.
+ DiagnoseImpCast(S, E, T, CC, diag::warn_hlsl_impcast_vector_truncation);
}
// If the vector cast is cast between two vectors of the same size, it is
- // a bitcast, not a conversion.
- if (S.Context.getTypeSize(Source) == S.Context.getTypeSize(Target))
+ // a bitcast, not a conversion, except under HLSL where it is a conversion.
+ if (!S.getLangOpts().HLSL &&
+ S.Context.getTypeSize(Source) == S.Context.getTypeSize(Target))
return;
Source = cast<VectorType>(Source)->getElementType().getTypePtr();
diff --git a/clang/lib/Sema/SemaExprCXX.cpp b/clang/lib/Sema/SemaExprCXX.cpp
index ea286c9709c13ff..83dcb615ccc03f1 100644
--- a/clang/lib/Sema/SemaExprCXX.cpp
+++ b/clang/lib/Sema/SemaExprCXX.cpp
@@ -4709,6 +4709,19 @@ Sema::PerformImplicitConversion(Expr *From, QualType ToType,
CK_ZeroToOCLOpaqueType,
From->getValueKind()).get();
break;
+ case ICK_HLSL_Vector_Truncation: {
+ // Note: HLSL vectors are ExtVectors. Since this truncates a vector to a
+ // smaller vector, this can only operate on arguments where the source and
+ // destination types are ExtVectors.
+ auto *FromVec = From->getType()->castAs<ExtVectorType>();
+ auto *ToVec = ToType->castAs<ExtVectorType>();
+ QualType ElType = FromVec->getElementType();
+ QualType TruncTy = Context.getExtVectorType(ElType, ToVec->getNumElements());
+ From = ImpCastExprToType(From, TruncTy, CK_VectorTruncation,
+ From->getValueKind())
+ .get();
+ break;
+ }
case ICK_Lvalue_To_Rvalue:
case ICK_Array_To_Pointer:
@@ -4721,6 +4734,76 @@ Sema::PerformImplicitConversion(Expr *From, QualType ToType,
llvm_unreachable("Improper second standard conversion");
}
+ if (SCS.Element != ICK_Identity) {
+ // if SCS.Element is not ICK_Identity the To and From types must be HLSL
+ // vectors or matrices. HLSL matrices aren't yet supported so this code only
+ // handles vectors for now.
+
+ assert(From->getType()->isVectorType() && ToType->isVectorType() &&
+ "Element conversion is only supported for vector types.");
+ assert(From->getType()->getAs<VectorType>()->getNumElements() ==
+ ToType->getAs<VectorType>()->getNumElements() &&
+ "Element conversion is only supported for vectors with the same "
+ "element counts.");
+ QualType FromElTy = From->getType()->getAs<VectorType>()->getElementType();
+ unsigned NumElts = ToType->getAs<VectorType>()->getNumElements();
+ switch (SCS.Element) {
+ case ICK_Identity:
+ // Nothing to do.
+ break;
+ case ICK_Boolean_Conversion:
+ // Perform half-to-boolean conversion via float.
+ if (FromElTy->isHalfType()) {
+ QualType FPExtType = Context.getExtVectorType(FromElTy, NumElts);
+ From = ImpCastExprToType(From, FPExtType, CK_FloatingCast).get();
+ FromType = FPExtType;
+ }
+
+ From =
+ ImpCastExprToType(From, ToType,
+ ScalarTypeToBooleanCastKind(FromElTy), VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ break;
+ case ICK_Integral_Promotion:
+ case ICK_Integral_Conversion:
+ if (ToType->isBooleanType()) {
+ assert(FromType->castAs<EnumType>()->getDecl()->isFixed() &&
+ SCS.Second == ICK_Integral_Promotion &&
+ "only enums with fixed underlying type can promote to bool");
+ From = ImpCastExprToType(From, ToType, CK_IntegralToBoolean, VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ } else {
+ From = ImpCastExprToType(From, ToType, CK_IntegralCast, VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ }
+ break;
+
+ case ICK_Floating_Promotion:
+ case ICK_Floating_Conversion:
+ From = ImpCastExprToType(From, ToType, CK_FloatingCast, VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ break;
+ case ICK_Floating_Integral:
+ if (ToType->isRealFloatingType())
+ From =
+ ImpCastExprToType(From, ToType, CK_IntegralToFloating, VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ else
+ From =
+ ImpCastExprToType(From, ToType, CK_FloatingToIntegral, VK_PRValue,
+ /*BasePath=*/nullptr, CCK)
+ .get();
+ break;
+ default:
+ llvm_unreachable("Improper element standard conversion");
+ }
+ }
+
switch (SCS.Third) {
case ICK_Identity:
// Nothing to do.
diff --git a/clang/lib/Sema/SemaInit.cpp b/clang/lib/Sema/SemaInit.cpp
index ed02d3580f34f9a..e7d3348d9983793 100644
--- a/clang/lib/Sema/SemaInit.cpp
+++ b/clang/lib/Sema/SemaInit.cpp
@@ -6427,7 +6427,7 @@ void InitializationSequence::InitializeFrom(Sema &S,
// For HLSL ext vector types we allow list initialization behavior for C++
// constructor syntax. This is accomplished by converting initialization
// arguments an InitListExpr late.
- if (S.getLangOpts().HLSL && DestType->isExtVectorType() &&
+ if (S.getLangOpts().HLSL && Args.size() > 1 && DestType->isExtVectorType() &&
(SourceType.isNull() ||
!Context.hasSameUnqualifiedType(SourceType, DestType))) {
diff --git a/clang/lib/Sema/SemaOverload.cpp b/clang/lib/Sema/SemaOverload.cpp
index d3d2dfed2ce0cc2..98ddc49bfe2c912 100644
--- a/clang/lib/Sema/SemaOverload.cpp
+++ b/clang/lib/Sema/SemaOverload.cpp
@@ -158,7 +158,8 @@ ImplicitConversionRank clang::GetConversionRank(ImplicitConversionKind Kind) {
// it was omitted by the patch that added
// ICK_Zero_Queue_Conversion
ICR_C_Conversion,
- ICR_C_Conversion_Extension
+ ICR_C_Conversion_Extension,
+ ICR_C_Conversion
};
static_assert(std::size(Rank) == (int)ICK_Num_Conversion_Kinds);
return Rank[(int)Kind];
@@ -197,7 +198,8 @@ static const char* GetImplicitConversionName(ImplicitConversionKind Kind) {
"OpenCL Zero Event Conversion",
"OpenCL Zero Queue Conversion",
"C specific type conversion",
- "Incompatible pointer conversion"
+ "Incompatible pointer conversion",
+ "HLSL vector truncation"
};
static_assert(std::size(Name) == (int)ICK_Num_Conversion_Kinds);
return Name[Kind];
@@ -208,6 +210,7 @@ static const char* GetImplicitConversionName(ImplicitConversionKind Kind) {
void StandardConversionSequence::setAsIdentityConversion() {
First = ICK_Identity;
Second = ICK_Identity;
+ Element = ICK_Identity;
Third = ICK_Identity;
DeprecatedStringLiteralToCharPtr = false;
QualificationIncludesObjCLifetime = false;
@@ -1841,13 +1844,86 @@ bool Sema::IsFunctionConversion(QualType FromType, QualType ToType,
return true;
}
+/// Determine whether the conversion from FromType to ToType is a valid
+/// floating point conversion.
+///
+static bool IsFloatingPointConversion(Sema &S, QualType FromType,
+ QualType ToType) {
+ if (!FromType->isRealFloatingType() || !ToType->isRealFloatingType())
+ return false;
+ // FIXME: disable conversions between long double, __ibm128 and __float128
+ // if their representation is different until there is back end support
+ // We of course allow this conversion if long double is really double.
+
+ // Conversions between bfloat16 and float16 are currently not supported.
+ if ((FromType->isBFloat16Type() &&
+ (ToType->isFloat16Type() || ToType->isHalfType())) ||
+ (ToType->isBFloat16Type() &&
+ (FromType->isFloat16Type() || FromType->isHalfType())))
+ return false;
+
+ // Conversions between IEEE-quad and IBM-extended semantics are not
+ // permitted.
+ const llvm::fltSemantics &FromSem = S.Context.getFloatTypeSemantics(FromType);
+ const llvm::fltSemantics &ToSem = S.Context.getFloatTypeSemantics(ToType);
+ if ((&FromSem == &llvm::APFloat::PPCDoubleDouble() &&
+ &ToSem == &llvm::APFloat::IEEEquad()) ||
+ (&FromSem == &llvm::APFloat::IEEEquad() &&
+ &ToSem == &llvm::APFloat::PPCDoubleDouble()))
+ return false;
+ return true;
+}
+
+static bool IsVectorElementConversion(Sema &S, QualType FromType,
+ QualType ToType,
+ ImplicitConversionKind &ICK, Expr *From) {
+ if (S.Context.hasSameUnqualifiedType(FromType, ToType))
+ return true;
+
+ if (IsFloatingPointConversion(S, FromType, ToType)) {
+ ICK = ICK_Floating_Conversion;
+ return true;
+ }
+
+ if (S.IsFloatingPointPromotion(FromType, ToType)) {
+ ICK = ICK_Floating_Promotion;
+ return true;
+ }
+
+ if (ToType->isBooleanType() && FromType->isArithmeticType()) {
+ ICK = ICK_Boolean_Conversion;
+ return true;
+ }
+
+ if (FromType->isIntegralOrUnscopedEnumerationType() &&
+ ToType->isIntegralType(S.Context)) {
+ ICK = ICK_Integral_Conversion;
+ return true;
+ }
+
+ if (S.IsIntegralPromotion(From, FromType, ToType)) {
+ ICK = ICK_Integral_Promotion;
+ return true;
+ }
+
+ if ((FromType->isRealFloatingType() && ToType->isIntegralType(S.Context)) ||
+ (FromType->isIntegralOrUnscopedEnumerationType() &&
+ ToType->isRealFloatingType())) {
+ ICK = ICK_Floating_Integral;
+ return true;
+ }
+
+ return false;
+}
+
/// Determine whether the conversion from FromType to ToType is a valid
/// vector conversion.
///
/// \param ICK Will be set to the vector conversion kind, if this is a vector
/// conversion.
static bool IsVectorConversion(Sema &S, QualType FromType, QualType ToType,
- ImplicitConversionKind &ICK, Expr *From,
+ ImplicitConversionKind &ICK,
+ ImplicitConversionKind &ElConv, Expr *From,
bool InOverloadResolution, bool CStyle) {
// We need at...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/71098
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