Making invalidateInstructionCache automatic in SectionMemoryManager

llvm-svn: 180225

1 files changed, 5 insertions, 0 deletions

diff --git a/llvm/lib/ExecutionEngine/MCJIT/SectionMemoryManager.cpp b/llvm/lib/ExecutionEngine/MCJIT/SectionMemoryManager.cpp
index fa35acd389a..da931247b6c 100644
--- a/llvm/lib/ExecutionEngine/MCJIT/SectionMemoryManager.cpp
+++ b/llvm/lib/ExecutionEngine/MCJIT/SectionMemoryManager.cpp
@@ -138,6 +138,11 @@ bool SectionMemoryManager::applyPermissions(std::string *ErrMsg)
 
   // Read-write data memory already has the correct permissions
 
+  // Some platforms with separate data cache and instruction cache require
+  // explicit cache flush, otherwise JIT code manipulations (like resolved
+  // relocations) will get to the data cache but not to the instruction cache.
+  invalidateInstructionCache();
+
   return false;
 }