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authorNicolas Geoffray <nicolas.geoffray@lip6.fr>2009-06-12 14:11:08 +0000
committerNicolas Geoffray <nicolas.geoffray@lip6.fr>2009-06-12 14:11:08 +0000
commite91208c9631c98abbdce19ca7b1f51d9241faa18 (patch)
tree12cec2380badb686b60ae2c412108cca88602350
parentf343b69f47192dc9d1479f8b14aadccd17820d90 (diff)
After obtaining the lock, look if the function has been codegen'd by
another thread. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73227 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/ExecutionEngine/JIT/JIT.cpp5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/ExecutionEngine/JIT/JIT.cpp b/lib/ExecutionEngine/JIT/JIT.cpp
index f8ae884461..43995cb0ec 100644
--- a/lib/ExecutionEngine/JIT/JIT.cpp
+++ b/lib/ExecutionEngine/JIT/JIT.cpp
@@ -563,6 +563,11 @@ void *JIT::getPointerToFunction(Function *F) {
return Addr; // Check if function already code gen'd
MutexGuard locked(lock);
+
+ // Now that this thread owns the lock, check if another thread has already
+ // code gen'd the function.
+ if (void *Addr = getPointerToGlobalIfAvailable(F))
+ return Addr;
// Make sure we read in the function if it exists in this Module.
if (F->hasNotBeenReadFromBitcode()) {