[Modules] Make the DeclUpdates map be processed in insertion order.

This fixes my stress tests non-determinism so far. However, I've not
started playing with templates, friends, or terrible macros. I've found
at least two more seeming instabilities and am just waiting for a test
case to actually trigger them.

llvm-svn: 233162

1 files changed, 100 insertions, 0 deletions

diff --git a/clang/test/Modules/stress1.cpp b/clang/test/Modules/stress1.cpp
new file mode 100644
index 00000000000..55d9533b7ae
--- /dev/null
+++ b/clang/test/Modules/stress1.cpp
@@ -0,0 +1,100 @@
+// RUN: rm -rf %t
+// RUN: cd %S
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -emit-module -fmodule-name=m00 -o %t/m00.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -emit-module -fmodule-name=m00 -o %t/m00_check.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: diff %t/m00.pcm %t/m00_check.pcm
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -emit-module -fmodule-name=m01 -o %t/m01.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -emit-module -fmodule-name=m02 -o %t/m02.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -emit-module -fmodule-name=m03 -o %t/m03.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -fmodule-file=%t/m00.pcm \
+// RUN:   -fmodule-file=%t/m01.pcm \
+// RUN:   -fmodule-file=%t/m02.pcm \
+// RUN:   -fmodule-file=%t/m03.pcm \
+// RUN:   -emit-module -fmodule-name=merge00 -o %t/merge00.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -fmodule-file=%t/m00.pcm \
+// RUN:   -fmodule-file=%t/m01.pcm \
+// RUN:   -fmodule-file=%t/m02.pcm \
+// RUN:   -fmodule-file=%t/m03.pcm \
+// RUN:   -emit-module -fmodule-name=merge00 -o %t/merge00_check.pcm \
+// RUN:   Inputs/stress1/module.modulemap
+//
+// RUN: diff %t/merge00.pcm %t/merge00_check.pcm
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -fmodule-map-file=Inputs/stress1/module.modulemap \
+// RUN:   -fmodule-file=%t/m00.pcm \
+// RUN:   -fmodule-file=%t/m01.pcm \
+// RUN:   -fmodule-file=%t/m02.pcm \
+// RUN:   -fmodule-file=%t/m03.pcm \
+// RUN:   -fmodule-file=%t/merge00.pcm \
+// RUN:   -verify stress1.cpp -S -emit-llvm -o %t/stress1.ll
+//
+// RUN: %clang_cc1 -fmodules -x c++ -std=c++11 \
+// RUN:   -I Inputs/stress1 \
+// RUN:   -fno-implicit-modules -fno-modules-implicit-maps \
+// RUN:   -fmodule-map-file-home-is-cwd \
+// RUN:   -fmodule-map-file=Inputs/stress1/module.modulemap \
+// RUN:   -fmodule-file=%t/m00.pcm \
+// RUN:   -fmodule-file=%t/m01.pcm \
+// RUN:   -fmodule-file=%t/m02.pcm \
+// RUN:   -fmodule-file=%t/m03.pcm \
+// RUN:   -fmodule-file=%t/merge00.pcm \
+// RUN:   -verify stress1.cpp -S -emit-llvm -o %t/stress1_check.ll
+//
+// RUN: diff -u %t/stress1.ll %t/stress1_check.ll
+//
+// expected-no-diagnostics
+
+#include "m00.h"
+#include "m01.h"
+#include "m02.h"
+#include "m03.h"
+
+#include "merge00.h"
+
+int f() { return N01::S00('a').method00('b') + (int)N00::S00(42) + function00(42) + g(); }