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removed -O add-C++ option and updated documentation

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This commit is contained in:
Vern Paxson 2023-01-24 10:52:58 -08:00
parent a82f743bcc
commit 65a2900bb7
7 changed files with 16 additions and 143 deletions
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46
src/script_opt/ProfileFunc.cc
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@ -23,49 +23,6 @@ p_hash_type p_hash(const Obj* o)
return p_hash(d.Description());
}
// Returns a filename associated with the given function body. Used to
// provide distinctness to identical function bodies seen in separate,
// potentially conflicting incremental compilations. An example of this
// is a function named foo() that calls bar(), for which in two different
// compilation contexts bar() has differing semantics, even though foo()'s
// (shallow) semantics are the same.
static std::string script_specific_filename(const Stmt* body)
{
// The specific filename is taken from the location filename, making
// it absolute if necessary.
auto body_loc = body->GetLocationInfo();
auto bl_f = body_loc->filename;
ASSERT(bl_f != nullptr);
if ( (bl_f[0] != '.' && bl_f[0] != '/') ||
(bl_f[0] == '.' && (bl_f[1] == '/' || (bl_f[1] == '.' && bl_f[2] == '/'))) )
{
// Add working directory to avoid collisions over the
// same relative name.
static std::string working_dir;
if ( working_dir.empty() )
{
char buf[8192];
if ( ! getcwd(buf, sizeof buf) )
reporter->InternalError("getcwd failed: %s", strerror(errno));
working_dir = buf;
}
return working_dir + "/" + bl_f;
}
return bl_f;
}
// Returns a incremental-compilation-specific hash for the given function
// body, given its non-specific hash is "generic_hash".
static p_hash_type script_specific_hash(const Stmt* body, p_hash_type generic_hash)
{
auto bl_f = script_specific_filename(body);
return merge_p_hashes(generic_hash, p_hash(bl_f));
}
ProfileFunc::ProfileFunc(const Func* func, const StmtPtr& body, bool _abs_rec_fields)
{
profiled_func = func;
@ -717,9 +674,6 @@ void ProfileFuncs::ComputeProfileHash(std::shared_ptr<ProfileFunc> pf)
for ( auto i : pf->AdditionalHashes() )
h = merge_p_hashes(h, i);
if ( ! pf->Stmts().empty() )
h = script_specific_hash(pf->Stmts()[0], h);
pf->SetHashVal(h);
}