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Add a flag to disable type layout based lowering

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Arnold Schwaighofer
2020-02-12 06:35:37 -08:00
parent b7a58c0f96
commit 0dd8974dc1
2 changed files with 9 additions and 1 deletions
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4
include/swift/Option/FrontendOptions.td
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@@ -677,4 +677,8 @@ def previous_module_installname_map_file
def enable_type_layouts : Flag<["-"], "enable-type-layout">,
HelpText<"Enable type layout based lowering">;
def disable_type_layouts : Flag<["-"], "disable-type-layout">,
HelpText<"Disable type layout based lowering">;
} // end let Flags = [FrontendOption, NoDriverOption, HelpHidden]

6
lib/Frontend/CompilerInvocation.cpp
View File

@@ -1264,7 +1264,11 @@ static bool ParseIRGenArgs(IRGenOptions &Opts, ArgList &Args,
Opts.EnableDynamicReplacementChaining |=
Args.hasArg(OPT_enable_dynamic_replacement_chaining);
Opts.UseTypeLayoutValueHandling |= Args.hasArg(OPT_enable_type_layouts);
if (auto A = Args.getLastArg(OPT_enable_type_layouts,
OPT_disable_type_layouts)) {
Opts.UseTypeLayoutValueHandling
= A->getOption().matches(OPT_enable_type_layouts);
}
Opts.UseSwiftCall = Args.hasArg(OPT_enable_swiftcall);