AlignTypeEnum AlignType : 8; //< Alignment type (AlignTypeEnum)
unsigned char ABIAlign; //< ABI alignment for this type/bitw
unsigned char PrefAlign; //< Pref. alignment for this type/bitw
- short TypeBitWidth; //< Type bit width
+ uint32_t TypeBitWidth; //< Type bit width
/// Initializer
static TargetAlignElem get(AlignTypeEnum align_type, unsigned char abi_align,
- unsigned char pref_align, short bit_width);
+ unsigned char pref_align, uint32_t bit_width);
/// Equality predicate
bool operator==(const TargetAlignElem &rhs) const;
/// output stream operator
//! Set/initialize target alignments
void setAlignment(AlignTypeEnum align_type, unsigned char abi_align,
- unsigned char pref_align, short bit_width);
- unsigned getAlignmentInfo(AlignTypeEnum align_type, short bit_width,
+ unsigned char pref_align, uint32_t bit_width);
+ unsigned getAlignmentInfo(AlignTypeEnum align_type, uint32_t bit_width,
bool ABIAlign) const;
//! Internal helper method that returns requested alignment for type.
unsigned char getAlignment(const Type *Ty, bool abi_or_pref) const;
/// specified type.
uint64_t getTypeSizeInBits(const Type* Ty) const;
- /// getTypeAlignmentABI - Return the minimum ABI-required alignment for the
+ /// getABITypeAlignment - Return the minimum ABI-required alignment for the
/// specified type.
unsigned char getABITypeAlignment(const Type *Ty) const;
- /// getTypeAlignmentPref - Return the preferred stack/global alignment for
+ /// getPrefTypeAlignment - Return the preferred stack/global alignment for
/// the specified type.
unsigned char getPrefTypeAlignment(const Type *Ty) const;
TargetAlignElem
TargetAlignElem::get(AlignTypeEnum align_type, unsigned char abi_align,
- unsigned char pref_align, short bit_width) {
+ unsigned char pref_align, uint32_t bit_width) {
TargetAlignElem retval;
retval.AlignType = align_type;
retval.ABIAlign = abi_align;
std::string arg0 = getToken(token, ":");
const char *p = arg0.c_str();
AlignTypeEnum align_type;
- short size;
+ uint32_t size;
unsigned char abi_align;
unsigned char pref_align;
align_type = (*p == 'i' ? INTEGER_ALIGN :
(*p == 'f' ? FLOAT_ALIGN :
(*p == 'v' ? VECTOR_ALIGN : AGGREGATE_ALIGN)));
- size = (short) atoi(++p);
+ size = (uint32_t) atoi(++p);
abi_align = atoi(getToken(token, ":").c_str()) / 8;
pref_align = atoi(getToken(token, ":").c_str()) / 8;
if (pref_align == 0)
void
TargetData::setAlignment(AlignTypeEnum align_type, unsigned char abi_align,
- unsigned char pref_align, short bit_width) {
+ unsigned char pref_align, uint32_t bit_width) {
for (unsigned i = 0, e = Alignments.size(); i != e; ++i) {
if (Alignments[i].AlignType == align_type &&
Alignments[i].TypeBitWidth == bit_width) {
/// getAlignmentInfo - Return the alignment (either ABI if ABIInfo = true or
/// preferred if ABIInfo = false) the target wants for the specified datatype.
-unsigned TargetData::getAlignmentInfo(AlignTypeEnum AlignType, short BitWidth,
- bool ABIInfo) const {
+unsigned TargetData::getAlignmentInfo(AlignTypeEnum AlignType,
+ uint32_t BitWidth, bool ABIInfo) const {
// Check to see if we have an exact match and remember the best match we see.
int BestMatchIdx = -1;
+ int LargestInt = -1;
for (unsigned i = 0, e = Alignments.size(); i != e; ++i) {
if (Alignments[i].AlignType == AlignType &&
Alignments[i].TypeBitWidth == BitWidth)
Alignments[BestMatchIdx].TypeBitWidth < BitWidth)
BestMatchIdx = i;
}
+ } else if (AlignType == INTEGER_ALIGN &&
+ Alignments[i].AlignType == INTEGER_ALIGN) {
+ // The "best match" for integers is the smallest size that is larger than
+ // the BitWidth requested.
+ if (Alignments[i].TypeBitWidth > BitWidth && (BestMatchIdx == -1 ||
+ Alignments[i].TypeBitWidth < Alignments[BestMatchIdx].TypeBitWidth))
+ BestMatchIdx = i;
+ // However, if there isn't one that's larger, then we must use the
+ // largest one we have (see below)
+ if (LargestInt == -1 ||
+ Alignments[i].TypeBitWidth > Alignments[LargestInt].TypeBitWidth)
+ LargestInt = i;
}
-
- // FIXME: handle things like i37.
}
+ // For integers, if we didn't find a best match, use the largest one found.
+ if (BestMatchIdx == -1)
+ BestMatchIdx = LargestInt;
+
// Okay, we didn't find an exact solution. Fall back here depending on what
// is being looked for.
assert(BestMatchIdx != -1 && "Didn't find alignment info for this datatype!");
+
+ // Since we got a "best match" index, just return it.
return ABIInfo ? Alignments[BestMatchIdx].ABIAlign
: Alignments[BestMatchIdx].PrefAlign;
}
return 4;
} else if (BitWidth <= 64) {
return 8;
- } else
- assert(0 && "Integer types > 64 bits not supported.");
+ } else {
+ // The size of this > 64 bit type is chosen as a multiple of the
+ // preferred alignment of the largest "native" size the target supports.
+ // We first obtain the the alignment info for this type and then compute
+ // the next largest multiple of that size.
+ uint64_t size = getAlignmentInfo(INTEGER_ALIGN, BitWidth, false) * 8;
+ return (((BitWidth / (size)) + (BitWidth % size != 0)) * size) / 8;
+ }
break;
}
case Type::VoidTyID: