zig

commit 22e60df68024f3fd72c91ec7b17dbf7abc71c86c (tree)
parent b1f3f59d660bbe163502daa6f0acd560782f49d8
Author: LemonBoy <thatlemon@gmail.com>
Date:   Sun, 13 Oct 2019 12:14:30 +0200

Propagate user-defined function alignment to LLVM IR

Diffstat:
M
src/analyze.cpp
 | 
5
++++-
M
test/stage1/behavior/align.zig
 | 
7
+++++++

2 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/src/analyze.cpp b/src/analyze.cpp
@@ -1787,6 +1787,7 @@ static ZigType *analyze_fn_type(CodeGen *g, AstNode *proto_node, Scope *child_sc
         if (!analyze_const_align(g, child_scope, fn_proto->align_expr, &fn_type_id.alignment)) {
             return g->builtin_types.entry_invalid;
         }
+        fn_entry->align_bytes = fn_type_id.alignment;
     }
 
     if (fn_proto->return_var_token != nullptr) {
@@ -3327,7 +3328,9 @@ static void resolve_decl_fn(CodeGen *g, TldFn *tld_fn) {
         fn_table_entry->type_entry = analyze_fn_type(g, source_node, child_scope, fn_table_entry);
 
         if (fn_proto->section_expr != nullptr) {
-            analyze_const_string(g, child_scope, fn_proto->section_expr, &fn_table_entry->section_name);
+            if (!analyze_const_string(g, child_scope, fn_proto->section_expr, &fn_table_entry->section_name)) {
+                fn_table_entry->type_entry = g->builtin_types.entry_invalid;
+            }
         }
 
         if (fn_table_entry->type_entry->id == ZigTypeIdInvalid) {
diff --git a/test/stage1/behavior/align.zig b/test/stage1/behavior/align.zig
@@ -328,3 +328,10 @@ test "align(@alignOf(T)) T does not force resolution of T" {
     _ = async S.doTheTest();
     expect(S.ok);
 }
+
+test "align(N) on functions" {
+    expect((@ptrToInt(overaligned_fn) & (0x1000 - 1)) == 0);
+}
+fn overaligned_fn() align(0x1000) i32 {
+    return 42;
+}