| // Check that clang can use a PCH created from libclang. | 
 |  | 
 | // https://PR46644 | 
 | // XFAIL: target=arm64-apple-{{.*}} | 
 |  | 
 | // This test doesn't use -fdisable-module-hash and hence requires that | 
 | // CompilerInvocation::getModuleHash() computes exactly the same hash | 
 | // for c-index-test and clang, which in turn requires that the both use | 
 | // exactly the same resource-dir, even without calling realpath() on it: | 
 | // - a/../b/ and b/ are not considered the same | 
 | // - on Windows, c:\ and C:\ (only different in case) are not the same | 
 |  | 
 | // RUN: rm -rf %t.mcp %t.h.pch | 
 | // RUN: %clang_cc1 -fsyntax-only %s -verify | 
 | // RUN: c-index-test -write-pch %t.h.pch %s -fmodules -fmodules-cache-path=%t.mcp -Xclang -triple -Xclang x86_64-apple-darwin | 
 | // RUN: %clang -fsyntax-only -include %t.h %s -Xclang -verify -fmodules -fmodules-cache-path=%t.mcp -Xclang -detailed-preprocessing-record -Xclang -triple -Xclang x86_64-apple-darwin -Xclang -fallow-pch-with-compiler-errors | 
 | // RUN: %clang -x c-header %s -o %t.clang.h.pch -fmodules -fmodules-cache-path=%t.mcp -Xclang -detailed-preprocessing-record -Xclang -triple -Xclang x86_64-apple-darwin -Xclang -fallow-pch-with-compiler-errors -Xclang -verify | 
 | // RUN: c-index-test -test-load-source local %s -include %t.clang.h -fmodules -fmodules-cache-path=%t.mcp -Xclang -triple -Xclang x86_64-apple-darwin | FileCheck %s | 
 |  | 
 | // FIXME: Still fails on at least some linux boxen. | 
 | // REQUIRES: system-darwin && target={{.*}}-{{darwin|macos}}{{.*}} | 
 |  | 
 | #ifndef HEADER | 
 | #define HEADER | 
 |  | 
 | void some_function(undeclared_type p); // expected-error{{unknown type name}} | 
 |  | 
 | struct S { int x; }; | 
 |  | 
 | #else | 
 | // expected-no-diagnostics | 
 |  | 
 | void test(struct S *s) { | 
 |   // CHECK: [[@LINE+1]]:6: MemberRefExpr=x:[[@LINE-6]]:16 | 
 |   s->x = 0; | 
 | } | 
 |  | 
 | #endif |