[COMMITTED] gccrs: Static Items must be const evaluated
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Commit Message
From: Philip Herron <philip.herron@embecosm.com>
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.
Tested on x86_64-pc-linux-gnu, committed on master.
---
gcc/rust/backend/rust-compile-item.cc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
@@ -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);