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Comments (3)

pgoodman avatar pgoodman commented on July 22, 2024

It's possible that rellic doesn't properly understand inline assembly. Those are implemented via function calls in clang.

from rellic.

aytey avatar aytey commented on July 22, 2024

So the line where code hits the assertion is in the process of trying to handle the asm block, but it just falls over:

rellic/lib/AST/IRToASTVisitor.cpp

Lines 1223 to 1247 in 86280f6

if (auto iasm = llvm::dyn_cast<llvm::InlineAsm>(&opnd)) {
// TODO(frabert): We still need to find a way to embed the inline asm
// into the function
auto &decl{dec_ctx.value_decls[iasm]};
if (decl) {
return;
}
auto tudecl{dec_ctx.ast_ctx.getTranslationUnitDecl()};
auto name{"asm_" +
std::to_string(GetNumDecls<clang::FunctionDecl>(tudecl))};
auto ftype{iasm->getFunctionType()};
auto type{dec_ctx.GetQualType(ftype)};
decl = ast.CreateFunctionDecl(tudecl, type, name);
std::vector<clang::ParmVarDecl *> iasm_params;
for (auto arg : ftype->params()) {
auto arg_type{dec_ctx.GetQualType(arg)};
auto name{"arg_" + std::to_string(iasm_params.size())};
iasm_params.push_back(
ast.CreateParamDecl(decl->getDeclContext(), arg_type, name));
}
auto fdecl{decl->getAsFunction()};
fdecl->setParams(params);

from rellic.

pgoodman avatar pgoodman commented on July 22, 2024

Inline asm is tricky because Clang does some kind of translation of it into an internal LLVM-specific assembly dialect.

from rellic.

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