Recommit r246175 - Add Kaleidoscope regression tests, with a fix to make sure

the kaleidoscope 'library' functions aren't dead-stripped in release builds.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@246201 91177308-0d34-0410-b5e6-96231b3b80d8

docs/tutorial/LangImpl4.rst

@@ -566,7 +566,7 @@ if we add:
 
     /// putchard - putchar that takes a double and returns 0.
     extern "C" double putchard(double X) {
-      putchar((char)X);
+      fputc((char)X, stderr);
       return 0;
     }
 

examples/Kaleidoscope/Chapter4/CMakeLists.txt

@@ -13,3 +13,5 @@ set(LLVM_LINK_COMPONENTS
 add_kaleidoscope_chapter(Kaleidoscope-Ch4
   toy.cpp
   )
+
+export_executable_symbols(Kaleidoscope-Ch4)

examples/Kaleidoscope/Chapter4/toy.cpp

@@ -631,14 +631,14 @@ static void MainLoop() {
 //===----------------------------------------------------------------------===//
 
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
-  putchar((char)X);
+__attribute__((used)) extern "C" double putchard(double X) {
+  fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
-  printf("%f\n", X);
+__attribute__((used)) extern "C" double printd(double X) {
+  fprintf(stderr, "%f\n", X);
   return 0;
 }
 

examples/Kaleidoscope/Chapter5/CMakeLists.txt

@@ -13,3 +13,5 @@ set(LLVM_LINK_COMPONENTS
 add_kaleidoscope_chapter(Kaleidoscope-Ch5
   toy.cpp
   )
+
+export_executable_symbols(Kaleidoscope-Ch5)

examples/Kaleidoscope/Chapter5/toy.cpp

@@ -905,14 +905,14 @@ static void MainLoop() {
 //===----------------------------------------------------------------------===//
 
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
-  putchar((char)X);
+__attribute__((used)) extern "C" double putchard(double X) {
+  fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
-  printf("%f\n", X);
+__attribute__((used)) extern "C" double printd(double X) {
+  fprintf(stderr, "%f\n", X);
   return 0;
 }
 

examples/Kaleidoscope/Chapter6/CMakeLists.txt

@@ -13,3 +13,5 @@ set(LLVM_LINK_COMPONENTS
 add_kaleidoscope_chapter(Kaleidoscope-Ch6
   toy.cpp
   )
+
+export_executable_symbols(Kaleidoscope-Ch6)

examples/Kaleidoscope/Chapter6/toy.cpp

@@ -1023,14 +1023,14 @@ static void MainLoop() {
 //===----------------------------------------------------------------------===//
 
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
-  putchar((char)X);
+__attribute__((used)) extern "C" double putchard(double X) {
+  fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
-  printf("%f\n", X);
+__attribute__((used)) extern "C" double printd(double X) {
+  fprintf(stderr, "%f\n", X);
   return 0;
 }
 

examples/Kaleidoscope/Chapter7/CMakeLists.txt

@@ -13,3 +13,5 @@ set(LLVM_LINK_COMPONENTS
 add_kaleidoscope_chapter(Kaleidoscope-Ch7
   toy.cpp
   )
+
+export_executable_symbols(Kaleidoscope-Ch7)

examples/Kaleidoscope/Chapter7/toy.cpp

@@ -1189,14 +1189,14 @@ static void MainLoop() {
 //===----------------------------------------------------------------------===//
 
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
-  putchar((char)X);
+__attribute__((used)) extern "C" double putchard(double X) {
+  fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
-  printf("%f\n", X);
+__attribute__((used)) extern "C" double printd(double X) {
+  fprintf(stderr, "%f\n", X);
   return 0;
 }
 

examples/Kaleidoscope/Chapter8/CMakeLists.txt

@@ -9,3 +9,5 @@ set(LLVM_LINK_COMPONENTS
 add_kaleidoscope_chapter(Kaleidoscope-Ch8
   toy.cpp
   )
+
+export_executable_symbols(Kaleidoscope-Ch8)

examples/Kaleidoscope/Chapter8/toy.cpp

@@ -1383,14 +1383,14 @@ static void MainLoop() {
 //===----------------------------------------------------------------------===//
 
 /// putchard - putchar that takes a double and returns 0.
-extern "C" double putchard(double X) {
-  putchar((char)X);
+__attribute__((used)) extern "C" double putchard(double X) {
+  fputc((char)X, stderr);
   return 0;
 }
 
 /// printd - printf that takes a double prints it as "%f\n", returning 0.
-extern "C" double printd(double X) {
-  printf("%f\n", X);
+__attribute__((used)) extern "C" double printd(double X) {
+  fprintf(stderr, "%f\n", X);
   return 0;
 }
 

test/CMakeLists.txt

@@ -1,3 +1,7 @@
+if(LLVM_BUILD_EXAMPLES)
+  set(ENABLE_EXAMPLES 1)
+endif()
+
 configure_lit_site_cfg(
   ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
   ${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg
@@ -96,6 +100,16 @@ if(TARGET ocaml_llvm)
         )
 endif()
 
+if(LLVM_BUILD_EXAMPLES)
+  list(APPEND LLVM_TEST_DEPENDS
+    Kaleidoscope-Ch3
+    Kaleidoscope-Ch4
+    Kaleidoscope-Ch5
+    Kaleidoscope-Ch6
+    Kaleidoscope-Ch7
+    )
+endif()
+
 add_lit_testsuite(check-llvm "Running the LLVM regression tests"
   ${CMAKE_CURRENT_BINARY_DIR}
   PARAMS llvm_site_config=${CMAKE_CURRENT_BINARY_DIR}/lit.site.cfg

test/Makefile

@@ -146,6 +146,7 @@ lit.site.cfg: FORCE
 	@$(ECHOPATH) s=@HOST_ARCH@=$(HOST_ARCH)=g >> lit.tmp
 	@$(ECHOPATH) s=@HAVE_LIBZ@=$(HAVE_LIBZ)=g >> lit.tmp
 	@$(ECHOPATH) s=@HAVE_DIA_SDK@=0=g >> lit.tmp
+	@$(ECHOPATH) s=@ENABLE_EXAMPLES@=$(BUILD_EXAMPLES)=g >> lit.tmp
 	@sed -f lit.tmp $(PROJ_SRC_DIR)/lit.site.cfg.in > $@
 	@-rm -f lit.tmp
 

test/lit.cfg

@@ -258,6 +258,12 @@ for pattern in [r"\bbugpoint\b(?!-)",
                 r"\byaml2obj\b",
                 r"\byaml-bench\b",
                 r"\bverify-uselistorder\b",
+                r"\bKaleidoscope-Ch3\b",
+                r"\bKaleidoscope-Ch4\b",
+                r"\bKaleidoscope-Ch5\b",
+                r"\bKaleidoscope-Ch6\b",
+                r"\bKaleidoscope-Ch7\b",
+                r"\bKaleidoscope-Ch8\b",
                 # Handle these specially as they are strings searched
                 # for during testing.
                 r"\| \bcount\b",

test/lit.site.cfg.in

@@ -35,6 +35,7 @@ config.llvm_use_sanitizer = "@LLVM_USE_SANITIZER@"
 config.have_zlib = "@HAVE_LIBZ@"
 config.have_dia_sdk = @HAVE_DIA_SDK@
 config.enable_ffi = "@LLVM_ENABLE_FFI@"
+config.test_examples = "@ENABLE_EXAMPLES@"
 
 # Support substitution of the tools_dir with user parameters. This is
 # used when we can't determine the tool dir at configuration time.