commit aada85c5f707eafc2abbc92696c3394b7be762bd
author Richard Smith <richard-llvm@metafoo.co.uk> Sat Feb 06 02:06:43 2016 +0000
committer Richard Smith <richard-llvm@metafoo.co.uk> Sat Feb 06 02:06:43 2016 +0000
tree 0dc1ce0b58d0d0b57c52e540e261519145be87d3
parent a40030f308759728ed4ab55847abff63a8ac2c61

[modules] Compress files embedded into a .pcm file, to reduce the disk usage of -fembed-all-files mode.

llvm-svn: 259976

clang/test/Modules/embed-files-compressed.cpp

diff --git a/clang/test/Modules/embed-files-compressed.cpp b/clang/test/Modules/embed-files-compressed.cpp
new file mode 100644
index 0000000..cf33a66
--- /dev/null
+++ b/clang/test/Modules/embed-files-compressed.cpp
@@ -0,0 +1,23 @@
+// REQUIRES: zlib
+// REQUIRES: shell
+//
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: echo '//////////////////////////////////////////////////////////////////////' > %t/a.h
+// RUN: cat %t/a.h %t/a.h %t/a.h %t/a.h > %t/b.h
+// RUN: cat %t/b.h %t/b.h %t/b.h %t/b.h > %t/a.h
+// RUN: cat %t/a.h %t/a.h %t/a.h %t/a.h > %t/b.h
+// RUN: cat %t/b.h %t/b.h %t/b.h %t/b.h > %t/a.h
+// RUN: cat %t/a.h %t/a.h %t/a.h %t/a.h > %t/b.h
+// RUN: cat %t/b.h %t/b.h %t/b.h %t/b.h > %t/a.h
+// RUN: cat %t/a.h %t/a.h %t/a.h %t/a.h > %t/b.h
+// RUN: cat %t/b.h %t/b.h %t/b.h %t/b.h > %t/a.h
+// RUN: echo 'module a { header "a.h" }' > %t/modulemap
+//
+// RUN: %clang_cc1 -fmodules -I%t -fmodules-cache-path=%t -fmodule-name=a -emit-module %t/modulemap -fmodules-embed-all-files -o %t/a.pcm
+//
+// The above embeds ~4.5MB of highly-predictable /s and \ns into the pcm file.
+// Check that the resulting file is under 40KB:
+//
+// RUN: wc -c %t/a.pcm | FileCheck --check-prefix=CHECK-SIZE %s
+// CHECK-SIZE: {{(^|[^0-9])[123][0-9][0-9][0-9][0-9]($|[^0-9])}}

clang/test/lit.cfg

diff --git a/clang/test/lit.cfg b/clang/test/lit.cfg
index d73274c..e216634 100644
--- a/clang/test/lit.cfg
+++ b/clang/test/lit.cfg
@@ -467,6 +467,11 @@
 if config.enable_backtrace == "1":
     config.available_features.add("backtrace")
 
+if config.have_zlib == "1":
+    config.available_features.add("zlib")
+else:
+    config.available_features.add("nozlib")
+
 # Check if we should run long running tests.
 if lit_config.params.get("run_long_tests", None) == "true":
     config.available_features.add("long_tests")

clang/test/lit.site.cfg.in

diff --git a/clang/test/lit.site.cfg.in b/clang/test/lit.site.cfg.in
index 332bcec..9dced07 100644
--- a/clang/test/lit.site.cfg.in
+++ b/clang/test/lit.site.cfg.in
@@ -14,6 +14,7 @@
 config.host_triple = "@LLVM_HOST_TRIPLE@"
 config.target_triple = "@TARGET_TRIPLE@"
 config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
+config.have_zlib = "@HAVE_LIBZ@"
 config.clang_arcmt = @ENABLE_CLANG_ARCMT@
 config.clang_staticanalyzer = @ENABLE_CLANG_STATIC_ANALYZER@
 config.clang_examples = @ENABLE_CLANG_EXAMPLES@