Remove the need for `LLVM_BACKEND_SUPPORT`

Makefile

@@ -8,11 +8,11 @@ OS=$(shell uname)
 
 ifeq ($(OS), Darwin)
 	LDFLAGS:=$(LDFLAGS) -liconv
-	CFLAGS:=$(CFLAGS) $(shell llvm-config --cxxflags --ldflags) -DLLVM_BACKEND_SUPPORT -DUSE_NEW_LLVM_ABI_SYSTEM
+	CFLAGS:=$(CFLAGS) $(shell llvm-config --cxxflags --ldflags)
 	LDFLAGS:=$(LDFLAGS) -lLLVM-C
 endif
 ifeq ($(OS), Linux)
-	CFLAGS:=$(CFLAGS) $(shell llvm-config-11 --cxxflags --ldflags) -DLLVM_BACKEND_SUPPORT -DUSE_NEW_LLVM_ABI_SYSTEM
+	CFLAGS:=$(CFLAGS) $(shell llvm-config-11 --cxxflags --ldflags)
 	LDFLAGS:=$(LDFLAGS) $(shell llvm-config-11 --libs core native --system-libs)
 endif
 

build.bat

@@ -20,7 +20,7 @@ if "%2" == "1" (
 )
 
 set compiler_flags= -nologo -Oi -TP -fp:precise -Gm- -MP -FC -EHsc- -GR- -GF
-set compiler_defines= -DLLVM_BACKEND_SUPPORT -DUSE_NEW_LLVM_ABI_SYSTEM
+set compiler_defines=
 
 for /f %%i in ('git rev-parse --short HEAD') do set GIT_SHA=%%i
 if %ERRORLEVEL% equ 0 set compiler_defines=%compiler_defines% -DGIT_SHA=\"%GIT_SHA%\"
@@ -59,10 +59,13 @@ set linker_settings=%libs% %linker_flags%
 del *.pdb > NUL 2> NUL
 del *.ilk > NUL 2> NUL
 
-cl %compiler_settings% "src\main.cpp" /link %linker_settings% -OUT:%exe_name%
+rem cl %compiler_settings% "src\main.cpp" /link %linker_settings% -OUT:%exe_name%
+
+cl %compiler_settings% "src\main.cpp" /link %linker_settings% -OUT:%exe_name% ^
+	&& odin run examples/demo
 
 if %errorlevel% neq 0 goto end_of_build
-if %release_mode% EQU 0 odin run examples/demo/demo.odin
+rem if %release_mode% EQU 0 odin run examples/demo/demo.odin
 
 del *.obj > NUL 2> NUL
 

src/llvm_backend.hpp

@@ -1,4 +1,3 @@
-#if defined(LLVM_BACKEND_SUPPORT)
 #if defined(GB_SYSTEM_WINDOWS)
 #include "llvm-c/Core.h"
 #include "llvm-c/ExecutionEngine.h"
@@ -30,7 +29,6 @@
 #include <llvm-c/Transforms/Utils.h>
 #include <llvm-c/Transforms/Vectorize.h>
 #endif
-#endif
 
 struct lbProcedure;
 

src/main.cpp

@@ -10,13 +10,11 @@
 
 gb_global Timings global_timings = {0};
 
-#if defined(LLVM_BACKEND_SUPPORT)
 #if defined(GB_SYSTEM_WINDOWS)
 #include "llvm-c/Types.h"
 #else
 #include <llvm-c/Types.h>
 #endif
-#endif
 
 #include "parser.hpp"
 #include "checker.hpp"
@@ -26,7 +24,6 @@ gb_global Timings global_timings = {0};
 #include "docs.cpp"
 
 
-#if defined(LLVM_BACKEND_SUPPORT)
 #include "llvm_backend.cpp"
 
 #if defined(GB_SYSTEM_OSX)
@@ -36,8 +33,6 @@ gb_global Timings global_timings = {0};
 	#endif
 #endif
 
-#endif
-
 #include "ir.cpp"
 #include "ir_opt.cpp"
 #include "ir_print.cpp"
@@ -154,7 +149,6 @@ i32 system_exec_command_line_app(char const *name, char const *fmt, ...) {
 
 
 
-#if defined(LLVM_BACKEND_SUPPORT)
 i32 linker_stage(lbGenerator *gen) {
   i32 result = 0;
   Timings *timings = &global_timings;
@@ -470,7 +464,6 @@ i32 linker_stage(lbGenerator *gen) {
 
 	return result;
 }
-#endif
 
 Array<String> setup_args(int argc, char const **argv) {
 	gbAllocator a = heap_allocator();
@@ -2190,7 +2183,6 @@ int main(int arg_count, char const **arg_ptr) {
 	}
 
 	if (build_context.use_llvm_api) {
-#if defined(LLVM_BACKEND_SUPPORT)
 		timings_start_section(timings, str_lit("LLVM API Code Gen"));
 		lbGenerator gen = {};
 		if (!lb_init_generator(&gen, &checker)) {
@@ -2204,9 +2196,9 @@ int main(int arg_count, char const **arg_ptr) {
 		case BuildMode_Executable:
 		case BuildMode_DynamicLibrary:
 			i32 result = linker_stage(&gen);
-      if(result != 0) {
-        return 1;
-      }
+			if (result != 0) {
+				return 1;
+			}
 			break;
 		}
 
@@ -2257,10 +2249,6 @@ int main(int arg_count, char const **arg_ptr) {
 		}
 
 		return 0;
-#else
-		gb_printf_err("LLVM C API backend is not supported on this platform yet\n");
-		return 1;
-#endif
 	} else {
 		irGen ir_gen = {0};
 		if (!ir_gen_init(&ir_gen, &checker)) {