Validate user headers even if -fmodules-validate-once-per-build-session

is enabled. Unlike system headers, we want to be more careful about
modifications to user headers, because it's still easy to edit a header
while you're building.

llvm-svn: 221634

1 files changed, 21 insertions, 7 deletions

diff --git a/clang/test/Modules/fmodules-validate-once-per-build-session.c b/clang/test/Modules/fmodules-validate-once-per-build-session.c
index 346d5a72c3e..dcbd0db3cbf 100644
--- a/clang/test/Modules/fmodules-validate-once-per-build-session.c
+++ b/clang/test/Modules/fmodules-validate-once-per-build-session.c
@@ -6,39 +6,53 @@
 // RUN: mkdir -p %t/modules-to-compare
 
 // ===
-// Create a module with system headers.
+// Create a module.  We will use -I or -isystem to determine whether to treat
+// foo.h as a system header.
 // RUN: echo 'void meow(void);' > %t/Inputs/foo.h
-// RUN: echo 'module Foo [system] { header "foo.h" }' > %t/Inputs/module.map
+// RUN: echo 'module Foo { header "foo.h" }' > %t/Inputs/module.map
 
 // ===
 // Compile the module.
-// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -isystem %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache-user -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
 // RUN: ls -R %t/modules-cache | grep Foo.pcm.timestamp
+// RUN: ls -R %t/modules-cache-user | grep Foo.pcm.timestamp
 // RUN: cp %t/modules-cache/Foo.pcm %t/modules-to-compare/Foo-before.pcm
+// RUN: cp %t/modules-cache-user/Foo.pcm %t/modules-to-compare/Foo-before-user.pcm
 
 // ===
 // Use it, and make sure that we did not recompile it.
-// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -isystem %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache-user -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
 // RUN: ls -R %t/modules-cache | grep Foo.pcm.timestamp
+// RUN: ls -R %t/modules-cache-user | grep Foo.pcm.timestamp
 // RUN: cp %t/modules-cache/Foo.pcm %t/modules-to-compare/Foo-after.pcm
+// RUN: cp %t/modules-cache-user/Foo.pcm %t/modules-to-compare/Foo-after-user.pcm
 
 // RUN: diff %t/modules-to-compare/Foo-before.pcm %t/modules-to-compare/Foo-after.pcm
+// RUN: diff %t/modules-to-compare/Foo-before-user.pcm %t/modules-to-compare/Foo-after-user.pcm
 
 // ===
 // Change the sources.
 // RUN: echo 'void meow2(void);' > %t/Inputs/foo.h
 
 // ===
-// Use the module, and make sure that we did not recompile it, even though the sources changed.
-// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// Use the module, and make sure that we did not recompile it if foo.h is a
+// system header, even though the sources changed.
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -isystem %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache-user -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1390000000 -fmodules-validate-once-per-build-session %s
 // RUN: ls -R %t/modules-cache | grep Foo.pcm.timestamp
+// RUN: ls -R %t/modules-cache-user | grep Foo.pcm.timestamp
 // RUN: cp %t/modules-cache/Foo.pcm %t/modules-to-compare/Foo-after.pcm
+// RUN: cp %t/modules-cache-user/Foo.pcm %t/modules-to-compare/Foo-after-user.pcm
 
 // RUN: diff %t/modules-to-compare/Foo-before.pcm %t/modules-to-compare/Foo-after.pcm
+// When foo.h is a user header, we will always validate it.
+// RUN: not diff %t/modules-to-compare/Foo-before-user.pcm %t/modules-to-compare/Foo-after-user.pcm
 
 // ===
 // Recompile the module if the today's date is before 01 January 2030.
-// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -I %t/Inputs -fbuild-session-timestamp=1893456000 -fmodules-validate-once-per-build-session %s
+// RUN: %clang_cc1 -cc1 -fmodules -fdisable-module-hash -fmodules-cache-path=%t/modules-cache -fsyntax-only -isystem %t/Inputs -fbuild-session-timestamp=1893456000 -fmodules-validate-once-per-build-session %s
 // RUN: ls -R %t/modules-cache | grep Foo.pcm.timestamp
 // RUN: cp %t/modules-cache/Foo.pcm %t/modules-to-compare/Foo-after.pcm