forked from M-Labs/nac3
core: Add compile-time feature to disable escape analysis
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432c81a500
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@ -24,3 +24,4 @@ features = ["llvm14-0", "target-x86", "target-arm", "target-riscv", "no-libffi-l
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[features]
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init-llvm-profile = []
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no-escape-analysis = ["nac3core/no-escape-analysis"]
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@ -4,6 +4,9 @@ version = "0.1.0"
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authors = ["M-Labs"]
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edition = "2021"
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[features]
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no-escape-analysis = []
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[dependencies]
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itertools = "0.13"
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crossbeam = "0.8"
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@ -212,19 +212,23 @@ impl<'a> Inferencer<'a> {
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/// This is a workaround preventing the caller from using a variable `alloca`-ed in the body, which
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/// is freed when the function returns.
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fn check_return_value_ty(&mut self, ret_ty: Type) -> bool {
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match &*self.unifier.get_ty_immutable(ret_ty) {
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TypeEnum::TObj { .. } => [
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self.primitives.int32,
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self.primitives.int64,
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self.primitives.uint32,
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self.primitives.uint64,
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self.primitives.float,
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self.primitives.bool,
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]
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.iter()
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.any(|allowed_ty| self.unifier.unioned(ret_ty, *allowed_ty)),
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TypeEnum::TTuple { ty, .. } => ty.iter().all(|t| self.check_return_value_ty(*t)),
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_ => false,
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if cfg!(feature = "no-escape-analysis") {
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true
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} else {
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match &*self.unifier.get_ty_immutable(ret_ty) {
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TypeEnum::TObj { .. } => [
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self.primitives.int32,
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self.primitives.int64,
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self.primitives.uint32,
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self.primitives.uint64,
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self.primitives.float,
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self.primitives.bool,
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]
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.iter()
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.any(|allowed_ty| self.unifier.unioned(ret_ty, *allowed_ty)),
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TypeEnum::TTuple { ty, .. } => ty.iter().all(|t| self.check_return_value_ty(*t)),
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_ => false,
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}
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}
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}
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@ -4,6 +4,9 @@ version = "0.1.0"
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authors = ["M-Labs"]
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edition = "2021"
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[features]
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no-escape-analysis = ["nac3core/no-escape-analysis"]
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[dependencies]
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parking_lot = "0.12"
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nac3parser = { path = "../nac3parser" }
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