1// RUN: rm -rf %t 2// RUN: rm -rf %t-saved 3// RUN: mkdir %t-saved 4 5// Initial module build 6// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -fdisable-module-hash \ 7// RUN: -isystem %S/Inputs/System/usr/include -fsyntax-only %s -verify 8// RUN: cp %t/cstd.pcm %t-saved/cstd.pcm 9 10// Even with -Werror don't rebuild a system module 11// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -fdisable-module-hash \ 12// RUN: -isystem %S/Inputs/System/usr/include -fsyntax-only %s -verify -Werror 13// RUN: diff %t/cstd.pcm %t-saved/cstd.pcm 14 15// Unless -Wsystem-headers is on 16// RUN: %clang_cc1 -fmodules -fimplicit-module-maps -fmodules-cache-path=%t -fdisable-module-hash \ 17// RUN: -isystem %S/Inputs/System/usr/include -fsyntax-only %s -verify \ 18// RUN: -Werror=unused -Wsystem-headers 19// RUN: not diff %t/cstd.pcm %t-saved/cstd.pcm 20 21// expected-no-diagnostics 22@import cstd; 23