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-rw-r--r--contrib/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp84
1 files changed, 36 insertions, 48 deletions
diff --git a/contrib/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp b/contrib/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
index 1e2ba2c..1445254 100644
--- a/contrib/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
+++ b/contrib/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
@@ -31,19 +31,12 @@ using namespace llvm;
/// \brief Grabs the string in whichever attribute is passed in and returns
/// a reference to it.
static StringRef getDIEStringAttr(const DIE &Die, uint16_t Attr) {
- const SmallVectorImpl<DIEValue *> &Values = Die.getValues();
- const DIEAbbrev &Abbrevs = Die.getAbbrev();
-
// Iterate through all the attributes until we find the one we're
// looking for, if we can't find it return an empty string.
- for (size_t i = 0; i < Values.size(); ++i) {
- if (Abbrevs.getData()[i].getAttribute() == Attr) {
- DIEValue *V = Values[i];
- assert(isa<DIEString>(V) && "String requested. Not a string.");
- DIEString *S = cast<DIEString>(V);
- return S->getString();
- }
- }
+ for (const auto &V : Die.values())
+ if (V.getAttribute() == Attr)
+ return V.getDIEString().getString();
+
return StringRef("");
}
@@ -123,20 +116,16 @@ void DIEHash::addParentContext(const DIE &Parent) {
// Collect all of the attributes for a particular DIE in single structure.
void DIEHash::collectAttributes(const DIE &Die, DIEAttrs &Attrs) {
- const SmallVectorImpl<DIEValue *> &Values = Die.getValues();
- const DIEAbbrev &Abbrevs = Die.getAbbrev();
-
#define COLLECT_ATTR(NAME) \
case dwarf::NAME: \
- Attrs.NAME.Val = Values[i]; \
- Attrs.NAME.Desc = &Abbrevs.getData()[i]; \
+ Attrs.NAME = V; \
break
- for (size_t i = 0, e = Values.size(); i != e; ++i) {
+ for (const auto &V : Die.values()) {
DEBUG(dbgs() << "Attribute: "
- << dwarf::AttributeString(Abbrevs.getData()[i].getAttribute())
+ << dwarf::AttributeString(V.getAttribute())
<< " added.\n");
- switch (Abbrevs.getData()[i].getAttribute()) {
+ switch (V.getAttribute()) {
COLLECT_ATTR(DW_AT_name);
COLLECT_ATTR(DW_AT_accessibility);
COLLECT_ATTR(DW_AT_address_class);
@@ -274,28 +263,24 @@ void DIEHash::hashDIEEntry(dwarf::Attribute Attribute, dwarf::Tag Tag,
// Hash all of the values in a block like set of values. This assumes that
// all of the data is going to be added as integers.
-void DIEHash::hashBlockData(const SmallVectorImpl<DIEValue *> &Values) {
- for (SmallVectorImpl<DIEValue *>::const_iterator I = Values.begin(),
- E = Values.end();
- I != E; ++I)
- Hash.update((uint64_t)cast<DIEInteger>(*I)->getValue());
+void DIEHash::hashBlockData(const DIE::value_range &Values) {
+ for (const auto &V : Values)
+ Hash.update((uint64_t)V.getDIEInteger().getValue());
}
// Hash the contents of a loclistptr class.
void DIEHash::hashLocList(const DIELocList &LocList) {
HashingByteStreamer Streamer(*this);
DwarfDebug &DD = *AP->getDwarfDebug();
- for (const auto &Entry :
- DD.getDebugLocEntries()[LocList.getValue()].List)
+ const DebugLocStream &Locs = DD.getDebugLocs();
+ for (const auto &Entry : Locs.getEntries(Locs.getList(LocList.getValue())))
DD.emitDebugLocEntry(Streamer, Entry);
}
// Hash an individual attribute \param Attr based on the type of attribute and
// the form.
-void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
- const DIEValue *Value = Attr.Val;
- const DIEAbbrevData *Desc = Attr.Desc;
- dwarf::Attribute Attribute = Desc->getAttribute();
+void DIEHash::hashAttribute(DIEValue Value, dwarf::Tag Tag) {
+ dwarf::Attribute Attribute = Value.getAttribute();
// Other attribute values use the letter 'A' as the marker, and the value
// consists of the form code (encoded as an unsigned LEB128 value) followed by
@@ -304,17 +289,20 @@ void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
// computation is limited to the following: DW_FORM_sdata, DW_FORM_flag,
// DW_FORM_string, and DW_FORM_block.
- switch (Value->getType()) {
+ switch (Value.getType()) {
+ case DIEValue::isNone:
+ llvm_unreachable("Expected valid DIEValue");
+
// 7.27 Step 3
// ... An attribute that refers to another type entry T is processed as
// follows:
case DIEValue::isEntry:
- hashDIEEntry(Attribute, Tag, cast<DIEEntry>(Value)->getEntry());
+ hashDIEEntry(Attribute, Tag, Value.getDIEEntry().getEntry());
break;
case DIEValue::isInteger: {
addULEB128('A');
addULEB128(Attribute);
- switch (Desc->getForm()) {
+ switch (Value.getForm()) {
case dwarf::DW_FORM_data1:
case dwarf::DW_FORM_data2:
case dwarf::DW_FORM_data4:
@@ -322,14 +310,14 @@ void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
case dwarf::DW_FORM_udata:
case dwarf::DW_FORM_sdata:
addULEB128(dwarf::DW_FORM_sdata);
- addSLEB128((int64_t)cast<DIEInteger>(Value)->getValue());
+ addSLEB128((int64_t)Value.getDIEInteger().getValue());
break;
// DW_FORM_flag_present is just flag with a value of one. We still give it a
// value so just use the value.
case dwarf::DW_FORM_flag_present:
case dwarf::DW_FORM_flag:
addULEB128(dwarf::DW_FORM_flag);
- addULEB128((int64_t)cast<DIEInteger>(Value)->getValue());
+ addULEB128((int64_t)Value.getDIEInteger().getValue());
break;
default:
llvm_unreachable("Unknown integer form!");
@@ -340,7 +328,7 @@ void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
addULEB128('A');
addULEB128(Attribute);
addULEB128(dwarf::DW_FORM_string);
- addString(cast<DIEString>(Value)->getString());
+ addString(Value.getDIEString().getString());
break;
case DIEValue::isBlock:
case DIEValue::isLoc:
@@ -348,17 +336,17 @@ void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
addULEB128('A');
addULEB128(Attribute);
addULEB128(dwarf::DW_FORM_block);
- if (isa<DIEBlock>(Value)) {
- addULEB128(cast<DIEBlock>(Value)->ComputeSize(AP));
- hashBlockData(cast<DIEBlock>(Value)->getValues());
- } else if (isa<DIELoc>(Value)) {
- addULEB128(cast<DIELoc>(Value)->ComputeSize(AP));
- hashBlockData(cast<DIELoc>(Value)->getValues());
+ if (Value.getType() == DIEValue::isBlock) {
+ addULEB128(Value.getDIEBlock().ComputeSize(AP));
+ hashBlockData(Value.getDIEBlock().values());
+ } else if (Value.getType() == DIEValue::isLoc) {
+ addULEB128(Value.getDIELoc().ComputeSize(AP));
+ hashBlockData(Value.getDIELoc().values());
} else {
// We could add the block length, but that would take
// a bit of work and not add a lot of uniqueness
// to the hash in some way we could test.
- hashLocList(*cast<DIELocList>(Value));
+ hashLocList(Value.getDIELocList());
}
break;
// FIXME: It's uncertain whether or not we should handle this at the moment.
@@ -375,7 +363,7 @@ void DIEHash::hashAttribute(AttrEntry Attr, dwarf::Tag Tag) {
void DIEHash::hashAttributes(const DIEAttrs &Attrs, dwarf::Tag Tag) {
#define ADD_ATTR(ATTR) \
{ \
- if (ATTR.Val != 0) \
+ if (ATTR) \
hashAttribute(ATTR, Tag); \
}
@@ -463,7 +451,7 @@ void DIEHash::computeHash(const DIE &Die) {
addAttributes(Die);
// Then hash each of the children of the DIE.
- for (auto &C : Die.getChildren()) {
+ for (auto &C : Die.children()) {
// 7.27 Step 7
// If C is a nested type entry or a member function entry, ...
if (isType(C->getTag()) || C->getTag() == dwarf::DW_TAG_subprogram) {
@@ -510,7 +498,7 @@ uint64_t DIEHash::computeDIEODRSignature(const DIE &Die) {
// ... take the least significant 8 bytes and return those. Our MD5
// implementation always returns its results in little endian, swap bytes
// appropriately.
- return *reinterpret_cast<support::ulittle64_t *>(Result + 8);
+ return support::endian::read64le(Result + 8);
}
/// This is based on the type signature computation given in section 7.27 of the
@@ -531,7 +519,7 @@ uint64_t DIEHash::computeCUSignature(const DIE &Die) {
// ... take the least significant 8 bytes and return those. Our MD5
// implementation always returns its results in little endian, swap bytes
// appropriately.
- return *reinterpret_cast<support::ulittle64_t *>(Result + 8);
+ return support::endian::read64le(Result + 8);
}
/// This is based on the type signature computation given in section 7.27 of the
@@ -555,5 +543,5 @@ uint64_t DIEHash::computeTypeSignature(const DIE &Die) {
// ... take the least significant 8 bytes and return those. Our MD5
// implementation always returns its results in little endian, swap bytes
// appropriately.
- return *reinterpret_cast<support::ulittle64_t *>(Result + 8);
+ return support::endian::read64le(Result + 8);
}
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