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gccrs: Static Items must be const evaluated

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Statics like constants need to have a singular value they are not functions
to be lazy evaluated. So to evaluate a block expr we can just reuse our
const code to resolve this to a singular value.

gcc/rust/ChangeLog:

	* backend/rust-compile-item.cc (CompileItem::visit): Const evaluate
	static item expressions.
This commit is contained in:
Philip Herron
2022-09-17 10:04:49 +01:00
committed by Arthur Cohen
parent 3736647947
commit 70fc174b78
1 changed files with 6 additions and 1 deletions
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7
gcc/rust/backend/rust-compile-item.cc
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@@ -43,13 +43,18 @@ CompileItem::visit (HIR::StaticItem &var)
rust_assert (ok);
tree type = TyTyResolveCompile::compile (ctx, resolved_type);
tree value = CompileExpr::Compile (var.get_expr (), ctx);
const Resolver::CanonicalPath *canonical_path = nullptr;
ok = ctx->get_mappings ()->lookup_canonical_path (
var.get_mappings ().get_nodeid (), &canonical_path);
rust_assert (ok);
HIR::Expr *const_value_expr = var.get_expr ();
ctx->push_const_context ();
tree value = compile_constant_item (ctx, resolved_type, canonical_path,
const_value_expr, var.get_locus ());
ctx->pop_const_context ();
std::string name = canonical_path->get ();
std::string asm_name = ctx->mangle_item (resolved_type, *canonical_path);