reproducible-pch

Author: Rebecca N. Palmer <rebecca_palmer@zoho.com>
Bug-Debian: https://bugs.debian.org/877359
Forwarded: no

Gbp-Pq: Name reproducible-pch.diff

diff --git a/clang/lib/Serialization/ASTWriter.cpp b/clang/lib/Serialization/ASTWriter.cpp
index f74269ee348f67536d2c0beed3c844907c7ba4cf..bfbc0b2f6771429cb22eb648aff0e5e22bf12a34 100644 (file)
--- a/clang/lib/Serialization/ASTWriter.cpp
+++ b/clang/lib/Serialization/ASTWriter.cpp
@@ -4293,9 +4293,13 @@ void ASTWriter::WriteOpenCLExtensionTypes(Sema &SemaRef) {
     return;
 
   RecordData Record;
+  // Sort to allow reproducible .pch files - https://bugs.debian.org/877359
+  std::map<TypeID, std::set<std::string>> sortedOpenCLTypeExtMap;
   for (const auto &I : SemaRef.OpenCLTypeExtMap) {
-    Record.push_back(
-        static_cast<unsigned>(getTypeID(I.first->getCanonicalTypeInternal())));
+    sortedOpenCLTypeExtMap[getTypeID(I.first->getCanonicalTypeInternal())]=I.second;
+  }
+  for (const auto &I : sortedOpenCLTypeExtMap) {
+    Record.push_back(static_cast<unsigned>(I.first));
     Record.push_back(I.second.size());
     for (auto Ext : I.second)
       AddString(Ext, Record);
@@ -4308,8 +4312,12 @@ void ASTWriter::WriteOpenCLExtensionDecls(Sema &SemaRef) {
     return;
 
   RecordData Record;
+  std::map<DeclID, std::set<std::string>> sortedOpenCLDeclExtMap;
   for (const auto &I : SemaRef.OpenCLDeclExtMap) {
-    Record.push_back(getDeclID(I.first));
+    sortedOpenCLDeclExtMap[getDeclID(I.first)]=I.second;
+  }
+  for (const auto &I : sortedOpenCLDeclExtMap) {
+    Record.push_back(I.first);
     Record.push_back(static_cast<unsigned>(I.second.size()));
     for (auto Ext : I.second)
       AddString(Ext, Record);