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Add support for metadata representing .ident directives.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192764 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2013-10-16 01:49:05 +00:00
parent a486f55569
commit 3aa342be50
7 changed files with 84 additions and 0 deletions
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lib/IR/Verifier.cpp
+20
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@@ -216,6 +216,7 @@ namespace {
visitNamedMDNode(*I);
visitModuleFlags(M);
visitModuleIdents(M);
// Verify Debug Info.
verifyDebugInfo(M);
@@ -260,6 +261,7 @@ namespace {
void visitGlobalAlias(GlobalAlias &GA);
void visitNamedMDNode(NamedMDNode &NMD);
void visitMDNode(MDNode &MD, Function *F);
void visitModuleIdents(Module &M);
void visitModuleFlags(Module &M);
void visitModuleFlag(MDNode *Op, DenseMap<MDString*, MDNode*> &SeenIDs,
SmallVectorImpl<MDNode*> &Requirements);
@@ -613,6 +615,24 @@ void Verifier::visitMDNode(MDNode &MD, Function *F) {
}
}
void Verifier::visitModuleIdents(Module &M) {
const NamedMDNode *Idents = M.getNamedMetadata("llvm.ident");
if (!Idents)
return;
// llvm.ident takes a list of metadata entry. Each entry has only one string.
// Scan each llvm.ident entry and make sure that this requirement is met.
for (unsigned i = 0, e = Idents->getNumOperands(); i != e; ++i) {
const MDNode *N = Idents->getOperand(i);
Assert1(N->getNumOperands() == 1,
"incorrect number of operands in llvm.ident metadata", N);
Assert1(isa<MDString>(N->getOperand(0)),
("invalid value for llvm.ident metadata entry operand"
"(the operand should be a string)"),
N->getOperand(0));
}
}
void Verifier::visitModuleFlags(Module &M) {
const NamedMDNode *Flags = M.getModuleFlagsMetadata();
if (!Flags) return;