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[CIR][CIRGen][TBAA] Add support for scalar types (llvm#1220)
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20 files changed

+505
-58
lines changed

20 files changed

+505
-58
lines changed

‎clang/include/clang/CIR/Dialect/Builder/CIRBaseBuilder.h‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -170,7 +170,7 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
170170
/*alignment=*/intAttr,
171171
/*mem_order=*/
172172
cir::MemOrderAttr{},
173-
/*tbaa=*/mlir::ArrayAttr{});
173+
/*tbaa=*/cir::TBAAAttr{});
174174
}
175175

176176
mlir::Value createAlignedLoad(mlir::Location loc, mlir::Value ptr,
@@ -357,7 +357,7 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
357357
val.getType())
358358
dst = createPtrBitcast(dst, val.getType());
359359
return create<cir::StoreOp>(loc, val, dst, _volatile, align, order,
360-
/*tbaa=*/mlir::ArrayAttr{});
360+
/*tbaa=*/cir::TBAAAttr{});
361361
}
362362

363363
mlir::Value createAlloca(mlir::Location loc, cir::PointerType addrType,
@@ -405,7 +405,7 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
405405
cir::CopyOp createCopy(mlir::Value dst, mlir::Value src,
406406
bool isVolatile = false) {
407407
return create<cir::CopyOp>(dst.getLoc(), dst, src, isVolatile,
408-
/*tbaa=*/mlir::ArrayAttr{});
408+
/*tbaa=*/cir::TBAAAttr{});
409409
}
410410

411411
cir::MemCpyOp createMemCpy(mlir::Location loc, mlir::Value dst,

‎clang/include/clang/CIR/Dialect/IR/CIRAttrs.td‎

Lines changed: 4 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -24,8 +24,9 @@ include "clang/CIR/Interfaces/ASTAttrInterfaces.td"
2424
// CIR Attrs
2525
//===----------------------------------------------------------------------===//
2626

27-
class CIR_Attr<string name, string attrMnemonic, list<Trait> traits = []>
28-
: AttrDef<CIR_Dialect, name, traits> {
27+
class CIR_Attr<string name, string attrMnemonic, list<Trait> traits = [],
28+
string baseCppClass = "::mlir::Attribute">
29+
: AttrDef<CIR_Dialect, name, traits, baseCppClass> {
2930
let mnemonic = attrMnemonic;
3031
}
3132

@@ -1294,8 +1295,7 @@ def GlobalAnnotationValuesAttr : CIR_Attr<"GlobalAnnotationValues",
12941295
let genVerifyDecl = 1;
12951296
}
12961297

1297-
def CIR_TBAAAttr : CIR_Attr<"TBAA", "tbaa", []> {
1298-
}
1298+
include "clang/CIR/Dialect/IR/CIRTBAAAttrs.td"
12991299

13001300
include "clang/CIR/Dialect/IR/CIROpenCLAttrs.td"
13011301

‎clang/include/clang/CIR/Dialect/IR/CIROps.td‎

Lines changed: 3 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -588,7 +588,7 @@ def LoadOp : CIR_Op<"load", [
588588
UnitAttr:$is_volatile,
589589
OptionalAttr<I64Attr>:$alignment,
590590
OptionalAttr<MemOrder>:$mem_order,
591-
OptionalAttr<ArrayAttr>:$tbaa
591+
OptionalAttr<CIR_AnyTBAAAttr>:$tbaa
592592
);
593593
let results = (outs CIR_AnyType:$result);
594594

@@ -657,7 +657,7 @@ def StoreOp : CIR_Op<"store", [
657657
UnitAttr:$is_volatile,
658658
OptionalAttr<I64Attr>:$alignment,
659659
OptionalAttr<MemOrder>:$mem_order,
660-
OptionalAttr<ArrayAttr>:$tbaa);
660+
OptionalAttr<CIR_AnyTBAAAttr>:$tbaa);
661661

662662
let assemblyFormat = [{
663663
(`volatile` $is_volatile^)?
@@ -4068,7 +4068,7 @@ def CopyOp : CIR_Op<"copy",
40684068
let arguments = (ins Arg<CIR_PointerType, "", [MemWrite]>:$dst,
40694069
Arg<CIR_PointerType, "", [MemRead]>:$src,
40704070
UnitAttr:$is_volatile,
4071-
OptionalAttr<ArrayAttr>:$tbaa);
4071+
OptionalAttr<CIR_TBAAAttr>:$tbaa);
40724072
let summary = "Copies contents from a CIR pointer to another";
40734073
let description = [{
40744074
Given two CIR pointers, `src` and `dst`, `cir.copy` will copy the memory

‎clang/include/clang/CIR/Dialect/IR/CIRTBAAAttrs.td‎

Lines changed: 38 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,38 @@
1+
//===----------------------------------------------------------------------===//
2+
// TBAAAttr
3+
//===----------------------------------------------------------------------===//
4+
5+
def CIR_TBAAAttr : CIR_Attr<"TBAA", "tbaa", []> {
6+
let summary = "CIR dialect TBAA base attribute";
7+
}
8+
9+
//===----------------------------------------------------------------------===//
10+
// TBAAScalarAttr
11+
//===----------------------------------------------------------------------===//
12+
13+
def CIR_TBAAScalarAttr : CIR_Attr<"TBAAScalar", "tbaa_scalar", [], "TBAAAttr"> {
14+
let summary = "Describes a scalar type in TBAA with an identifier.";
15+
16+
let parameters = (ins CIR_AnyScalarType : $type);
17+
18+
let description = [{
19+
Define a TBAA attribute.
20+
21+
Example:
22+
```mlir
23+
// CIR_TBAAScalarAttr
24+
#tbaa_scalar = #cir.tbaa_scalar<type = !s32i>
25+
#tbaa_scalar1 = #cir.tbaa_scalar<type = !u32i>
26+
```
27+
28+
See the following link for more details:
29+
https://llvm.org/docs/LangRef.html#tbaa-metadata
30+
}];
31+
32+
let assemblyFormat = "`<` struct(params) `>`";
33+
}
34+
35+
def CIR_AnyTBAAAttr : AnyAttrOf<[
36+
CIR_TBAAAttr,
37+
CIR_TBAAScalarAttr
38+
]>;

‎clang/include/clang/CIR/Dialect/IR/CIRTypes.td‎

Lines changed: 29 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -74,6 +74,28 @@ def CIR_IntType : CIR_Type<"Int", "int",
7474
static bool isValidPrimitiveIntBitwidth(unsigned width) {
7575
return width == 8 || width == 16 || width == 32 || width == 64;
7676
}
77+
78+
llvm::StringRef getTBAATypeName() const {
79+
switch (getWidth()) {
80+
case 1:
81+
case 8: {
82+
return "omnipotent char";
83+
}
84+
case 16: {
85+
return "short";
86+
}
87+
case 32: {
88+
return "int";
89+
}
90+
case 64: {
91+
return "long";
92+
}
93+
default: {
94+
llvm::errs() << "unknown type: " << *this << "\n";
95+
return "unknown";
96+
}
97+
}
98+
}
7799
}];
78100
let genVerifyDecl = 1;
79101
}
@@ -609,4 +631,11 @@ def CIR_AnyType : AnyTypeOf<[
609631
CIR_ComplexType
610632
]>;
611633

634+
def CIR_AnyScalarType : AnyTypeOf<[
635+
CIR_IntType, CIR_PointerType, CIR_DataMemberType, CIR_MethodType,
636+
CIR_BoolType, CIR_ArrayType, CIR_VectorType, CIR_FuncType, CIR_VoidType,
637+
CIR_ExceptionType, CIR_AnyFloat, CIR_FP16, CIR_BFloat16,
638+
CIR_ComplexType
639+
]>;
640+
612641
#endif // MLIR_CIR_DIALECT_CIR_TYPES

‎clang/include/clang/CIR/MissingFeatures.h‎

Lines changed: 6 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -58,7 +58,12 @@ struct MissingFeatures {
5858
// sanitizer related type check features
5959
static bool emitTypeCheck() { return false; }
6060
static bool tbaa() { return false; }
61-
static bool tbaa_struct() { return false; }
61+
static bool tbaaStruct() { return false; }
62+
static bool tbaaTagForStruct() { return false; }
63+
static bool tbaaVTablePtr() { return false; }
64+
static bool tbaaIncompleteType() { return false; }
65+
static bool tbaaMergeTBAAInfo() { return false; }
66+
static bool tbaaMayAlias() { return false; }
6267
static bool cleanups() { return false; }
6368
static bool emitNullabilityCheck() { return false; }
6469
static bool ptrAuth() { return false; }

‎clang/lib/CIR/CodeGen/CIRGenBuilder.h‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -839,7 +839,7 @@ class CIRGenBuilderTy : public cir::CIRBaseBuilderTy {
839839
return create<cir::LoadOp>(
840840
loc, addr.getElementType(), addr.getPointer(), /*isDeref=*/false,
841841
/*is_volatile=*/isVolatile, /*alignment=*/mlir::IntegerAttr{},
842-
/*mem_order=*/cir::MemOrderAttr{}, /*tbaa=*/mlir::ArrayAttr{});
842+
/*mem_order=*/cir::MemOrderAttr{}, /*tbaa=*/cir::TBAAAttr{});
843843
}
844844

845845
mlir::Value createAlignedLoad(mlir::Location loc, mlir::Type ty,

‎clang/lib/CIR/CodeGen/CIRGenExprAgg.cpp‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1716,7 +1716,7 @@ void CIRGenFunction::emitAggregateCopy(LValue Dest, LValue Src, QualType Ty,
17161716
// Determine the metadata to describe the position of any padding in this
17171717
// memcpy, as well as the TBAA tags for the members of the struct, in case
17181718
// the optimizer wishes to expand it in to scalar memory operations.
1719-
assert(!cir::MissingFeatures::tbaa_struct() && "tbaa.struct NYI");
1719+
assert(!cir::MissingFeatures::tbaaStruct() && "tbaa.struct NYI");
17201720
if (CGM.getCodeGenOpts().NewStructPathTBAA) {
17211721
TBAAAccessInfo TBAAInfo = CGM.mergeTBAAInfoForMemoryTransfer(
17221722
Dest.getTBAAInfo(), Src.getTBAAInfo());

‎clang/lib/CIR/CodeGen/CIRGenModule.cpp‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -3988,7 +3988,7 @@ cir::TBAAAttr CIRGenModule::getTBAABaseTypeInfo(QualType QTy) {
39883988
return tbaa->getBaseTypeInfo(QTy);
39893989
}
39903990

3991-
mlir::ArrayAttr CIRGenModule::getTBAAAccessTagInfo(TBAAAccessInfo tbaaInfo) {
3991+
cir::TBAAAttr CIRGenModule::getTBAAAccessTagInfo(TBAAAccessInfo tbaaInfo) {
39923992
if (!tbaa) {
39933993
return nullptr;
39943994
}

‎clang/lib/CIR/CodeGen/CIRGenModule.h‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -525,7 +525,7 @@ class CIRGenModule : public CIRGenTypeCache {
525525
/// type is not suitable for use in TBAA access tags.
526526
cir::TBAAAttr getTBAABaseTypeInfo(QualType QTy);
527527

528-
mlir::ArrayAttr getTBAAAccessTagInfo(TBAAAccessInfo tbaaInfo);
528+
cir::TBAAAttr getTBAAAccessTagInfo(TBAAAccessInfo tbaaInfo);
529529

530530
/// Get merged TBAA information for the purposes of type casts.
531531
TBAAAccessInfo mergeTBAAInfoForCast(TBAAAccessInfo SourceInfo,

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