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-rw-r--r--llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp51
1 files changed, 24 insertions, 27 deletions
diff --git a/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp b/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
index a2e5aad9657..53e02fac6e3 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
+++ b/llvm/lib/CodeGen/AsmPrinter/DIEHash.cpp
@@ -31,18 +31,14 @@ 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 auto &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();
- }
+ if (Abbrevs.getData()[i].getAttribute() == Attr)
+ return Values[i].getDIEString().getString();
}
return StringRef("");
}
@@ -123,7 +119,7 @@ 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 SmallVectorImpl<DIEValue> &Values = Die.getValues();
const DIEAbbrev &Abbrevs = Die.getAbbrev();
#define COLLECT_ATTR(NAME) \
@@ -274,11 +270,9 @@ 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 SmallVectorImpl<DIEValue> &Values) {
+ for (auto I = Values.begin(), E = Values.end(); I != E; ++I)
+ Hash.update((uint64_t)I->getDIEInteger().getValue());
}
// Hash the contents of a loclistptr class.
@@ -293,7 +287,7 @@ void DIEHash::hashLocList(const DIELocList &LocList) {
// 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 DIEValue &Value = Attr.Val;
const DIEAbbrevData *Desc = Attr.Desc;
dwarf::Attribute Attribute = Desc->getAttribute();
@@ -304,12 +298,15 @@ 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');
@@ -322,14 +319,14 @@ 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 +337,7 @@ 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 +345,17 @@ 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().getValues());
+ } else if (Value.getType() == DIEValue::isLoc) {
+ addULEB128(Value.getDIELoc().ComputeSize(AP));
+ hashBlockData(Value.getDIELoc().getValues());
} 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 +372,7 @@ 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.Val) \
hashAttribute(ATTR, Tag); \
}
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