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Support for stack promotion in IRGen.

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This means: handling of alloc_ref [stack].
It can be configured with two new options. See Option/FrontendOptions.td.

As the [stack] attribute is not generated yet, there should be NFC.




Swift SVN r32929
This commit is contained in:
Erik Eckstein
2015-10-28 00:44:25 +00:00
parent 4a1dffec32
commit 68fa1c2c34
10 changed files with 222 additions and 10 deletions
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11
lib/Frontend/CompilerInvocation.cpp
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@@ -1074,6 +1074,17 @@ static bool ParseIRGenArgs(IRGenOptions &Opts, ArgList &Args,
if (Args.hasArg(OPT_disable_llvm_verify))
Opts.Verify = false;
Opts.EmitStackPromotionChecks |= Args.hasArg(OPT_stack_promotion_checks);
if (const Arg *A = Args.getLastArg(OPT_stack_promotion_limit)) {
unsigned limit;
if (StringRef(A->getValue()).getAsInteger(10, limit)) {
Diags.diagnose(SourceLoc(), diag::error_invalid_arg_value,
A->getAsString(Args), A->getValue());
return true;
}
Opts.StackPromotionSizeLimit = limit;
}
if (Args.hasArg(OPT_autolink_force_load))
Opts.ForceLoadSymbolName = Args.getLastArgValue(OPT_module_link_name);