| @@ -19,7 +19,7 @@ use rustc_middle::ty::{self, Instance, Ty, TyCtxt}; |
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use rustc_middle::{bug, span_bug}; |
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use rustc_session::Session; |
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use rustc_session::config::{ |
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-BranchProtection, CFGuard, CFProtection, CrateType, DebugInfo, PAuthKey, PacRet, |
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+BranchProtection, CFGuard, CFProtection, CrateType, DebugInfo, FunctionReturn, PAuthKey, PacRet, |
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}; |
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use rustc_span::source_map::Spanned; |
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use rustc_span::{DUMMY_SP, Span}; |
| @@ -378,6 +378,18 @@ pub(crate) unsafe fn create_module<'ll>( |
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} |
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} |
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+match sess.opts.unstable_opts.function_return { |
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+FunctionReturn::Keep => {} |
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+FunctionReturn::ThunkExtern => unsafe { |
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+ llvm::LLVMRustAddModuleFlagU32( |
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+ llmod, |
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+ llvm::LLVMModFlagBehavior::Override, |
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+c"function_return_thunk_extern".as_ptr(), |
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+1, |
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+) |
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+}, |
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+} |
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+ |
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match (sess.opts.unstable_opts.small_data_threshold, sess.target.small_data_threshold_support()) |
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{ |
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// Set up the small-data optimization limit for architectures that use |