Reimplement opt stage

build.bat

@@ -41,12 +41,10 @@ set linker_settings=%libs% %linker_flags%
 del *.pdb > NUL 2> NUL
 del *.ilk > NUL 2> NUL
 
-rem odin run examples/node-lang/node-lang.odin && goto end_of_build
-
 
 cl %compiler_settings% "src\main.cpp" ^
 	/link %linker_settings% -OUT:%exe_name% ^
-	&& odin build examples/demo.odin -show-timings
+	&& odin run examples/demo.odin
 	rem && odin docs core/fmt.odin
 
 del *.obj > NUL 2> NUL

examples/demo.odin

@@ -665,11 +665,7 @@ named_proc_parameters :: proc() {
 }
 
 main :: proc() {
-	Foo :: union {
-
-	}
-
-	when false {
+	when true {
 		general_stuff();
 		default_struct_values();
 		union_type();

src/main.cpp

@@ -719,42 +719,42 @@ int main(int arg_count, char **arg_ptr) {
 
 	i32 exit_code = 0;
 
-	// timings_start_section(&timings, str_lit("llvm-opt"));
-	// #if defined(GB_SYSTEM_WINDOWS)
-	// 	// For more passes arguments: http://llvm.org/docs/Passes.html
-	// 	exit_code = system_exec_command_line_app("llvm-opt", false,
-	// 		"\"%.*sbin/opt\" \"%.*s\".ll -o \"%.*s\".bc %.*s "
-	// 		"-mem2reg "
-	// 		"-memcpyopt "
-	// 		"-die "
-	// 		"",
-	// 		LIT(build_context.ODIN_ROOT),
-	// 		LIT(output_base), LIT(output_base),
-	// 		LIT(build_context.opt_flags));
-	// 	if (exit_code != 0) {
-	// 		return exit_code;
-	// 	}
-	// #else
-	// 	// NOTE(zangent): This is separate because it seems that LLVM tools are packaged
-	// 	//   with the Windows version, while they will be system-provided on MacOS and GNU/Linux
-	// 	exit_code = system_exec_command_line_app("llvm-opt", false,
-	// 		"opt \"%.*s.ll\" -o \"%.*s\".bc %.*s "
-	// 		"-mem2reg "
-	// 		"-memcpyopt "
-	// 		"-die "
-	// 		"",
-	// 		LIT(output_base), LIT(output_base),
-	// 		LIT(build_context.opt_flags));
-	// 	if (exit_code != 0) {
-	// 		return exit_code;
-	// 	}
-	// #endif
+	timings_start_section(&timings, str_lit("llvm-opt"));
+	#if defined(GB_SYSTEM_WINDOWS)
+		// For more passes arguments: http://llvm.org/docs/Passes.html
+		exit_code = system_exec_command_line_app("llvm-opt", false,
+			"\"%.*sbin/opt\" \"%.*s\".ll -o \"%.*s\".bc %.*s "
+			"-mem2reg "
+			"-memcpyopt "
+			"-die "
+			"",
+			LIT(build_context.ODIN_ROOT),
+			LIT(output_base), LIT(output_base),
+			LIT(build_context.opt_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+	#else
+		// NOTE(zangent): This is separate because it seems that LLVM tools are packaged
+		//   with the Windows version, while they will be system-provided on MacOS and GNU/Linux
+		exit_code = system_exec_command_line_app("llvm-opt", false,
+			"opt \"%.*s.ll\" -o \"%.*s\".bc %.*s "
+			"-mem2reg "
+			"-memcpyopt "
+			"-die "
+			"",
+			LIT(output_base), LIT(output_base),
+			LIT(build_context.opt_flags));
+		if (exit_code != 0) {
+			return exit_code;
+		}
+	#endif
 
 	#if defined(GB_SYSTEM_WINDOWS)
 		timings_start_section(&timings, str_lit("llvm-llc"));
 		// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
 		exit_code = system_exec_command_line_app("llvm-llc", false,
-			"\"%.*sbin/llc\" \"%.*s.ll\" -filetype=obj -O%d "
+			"\"%.*sbin/llc\" \"%.*s.bc\" -filetype=obj -O%d "
 			"-o \"%.*s.obj\" "
 			"%.*s "
 			// "-debug-pass=Arguments "
@@ -829,7 +829,7 @@ int main(int arg_count, char **arg_ptr) {
 		timings_start_section(&timings, str_lit("llvm-llc"));
 		// For more arguments: http://llvm.org/docs/CommandGuide/llc.html
 		exit_code = system_exec_command_line_app("llc", false,
-			"llc \"%.*s.ll\" -filetype=obj -relocation-model=pic -O%d "
+			"llc \"%.*s.bc\" -filetype=obj -relocation-model=pic -O%d "
 			"%.*s "
 			// "-debug-pass=Arguments "
 			"%s"