llvm-project/clang/test/Modules/on-demand-macros.m

// RUN: rm -rf %t
// RUN: %clang_cc1 -fmodule-cache-path %t -F %S/Inputs -DFOO_RETURNS_INT_PTR -verify %s
// RUN: %clang_cc1 -fmodule-cache-path %t -F %S/Inputs -verify %s

@import CmdLine;

void test() {
#ifdef FOO_RETURNS_INT_PTR
  int *ip = foo();
#else
  float *fp = foo();
#endif
}
When building a module, use the macro definitions on the command line as part of the hash rather than ignoring them. This means we'll end up building more module variants (overall), but it allows configuration macros such as NDEBUG to work so long as they're specified via command line. More to come in this space. llvm-svn: 142187 2011-10-17 22:55:37 +08:00			`// RUN: rm -rf %t`
			`// RUN: %clang_cc1 -fmodule-cache-path %t -F %S/Inputs -DFOO_RETURNS_INT_PTR -verify %s`
			`// RUN: %clang_cc1 -fmodule-cache-path %t -F %S/Inputs -verify %s`

Introduce a non-uglified syntax for module imports in Objective-C: @import identifier [. identifier]* ; llvm-svn: 147452 2012-01-04 02:04:46 +08:00			`@import CmdLine;`
When building a module, use the macro definitions on the command line as part of the hash rather than ignoring them. This means we'll end up building more module variants (overall), but it allows configuration macros such as NDEBUG to work so long as they're specified via command line. More to come in this space. llvm-svn: 142187 2011-10-17 22:55:37 +08:00
			`void test() {`
			`#ifdef FOO_RETURNS_INT_PTR`
			`int *ip = foo();`
			`#else`
			`float *fp = foo();`
			`#endif`
			`}`