fixed string literals

src/llvm/llvm-ir/types.c

@@ -55,7 +55,11 @@ BackendError impl_reference_const(LLVMBackendCompileUnit* unit, TypeValue* value
         LLVMSetUnnamedAddress(string_global, LLVMGlobalUnnamedAddr);
         LLVMSetAlignment(string_global, 1);
 
-        *llvm_value = string_global;
+        // Cast the global variable to a pointer type if needed
+        LLVMTypeRef i8_ptr_type = LLVMPointerType(LLVMInt8TypeInContext(unit->context), 0);
+        LLVMValueRef global_str_ptr = LLVMConstBitCast(string_global, i8_ptr_type);
+
+        *llvm_value = global_str_ptr;
     } else {
         err = new_backend_impl_error(Implementation, value->nodePtr, "reference initializer can only be string literals");
     }

src/llvm/llvm-ir/variables.c

@@ -1,11 +1,13 @@
 
 #include <codegen/backend.h>
-#include <set/types.h>
-#include <sys/log.h>
-#include <llvm/llvm-ir/variables.h>
 #include <llvm-c/Core.h>
 #include <llvm-c/Types.h>
 #include <llvm/llvm-ir/types.h>
+#include <llvm/llvm-ir/variables.h>
+#include <set/types.h>
+#include <sys/log.h>
+
+#include "expr.h"
 
 BackendError impl_global_declaration(LLVMBackendCompileUnit* unit,
                                      LLVMGlobalScope* scope,
@@ -54,8 +56,7 @@ BackendError impl_global_definiton(LLVMBackendCompileUnit* unit,
 
     // FIXME: resolve initializer expression!
     LLVMValueRef initial_value = NULL;
-    err = get_type_default_value(unit, scope, def->declaration.type,
-                                 &initial_value);
+    err = get_const_type_value(unit, scope, &def->initializer->impl.constant, &initial_value);
 
     if (err.kind == Success) {
         DEBUG("setting default value");

tests/hello_world/main.gsc

@@ -23,6 +23,5 @@ fun printcstr(in cstr: msg) {
 }
 
 fun main() {
-    cstr: msg = "Hello, world!\n"
-    printcstr(msg)
+    printcstr("Hello, world!\n")
 }

tests/stdlib/src/echo.gsc

@@ -3,7 +3,7 @@ import "std"
 
 cstr: EOL = "\n"
 
-fun main(out u32: e) {
+fun main() {
 
     handle: stdin = nullHandle
     getStdinHandle(stdin)
@@ -22,6 +22,4 @@ fun main(out u32: e) {
     writeBytes(stdout, EOL, 1)(bytesWritten)
 
     heapFree(buffer)
-
-    e = 0 as u32
 }