add load/store volatility control to the C API, patch by Yiannis Tsiouris!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153238 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/llvm-c/Core.h b/include/llvm-c/Core.h
index 52b8b1c046b57cc93cdbf1a2e636125a4e7c75e5..77746069a25c700b637cb0db2e6e0891dac92342 100644 (file)
--- a/include/llvm-c/Core.h
+++ b/include/llvm-c/Core.h
@@ -2398,6 +2398,8 @@ LLVMValueRef LLVMBuildGlobalString(LLVMBuilderRef B, const char *Str,
                                    const char *Name);
 LLVMValueRef LLVMBuildGlobalStringPtr(LLVMBuilderRef B, const char *Str,
                                       const char *Name);
+LLVMBool LLVMGetVolatile(LLVMValueRef MemoryAccessInst);
+void LLVMSetVolatile(LLVMValueRef MemoryAccessInst, LLVMBool IsVolatile);
 
 /* Casts */
 LLVMValueRef LLVMBuildTrunc(LLVMBuilderRef, LLVMValueRef Val,

diff --git a/lib/VMCore/Core.cpp b/lib/VMCore/Core.cpp
index e86d805e329952e956cb06e9242c47d691b2b1d6..a9cca22d0dd4c42eba720bd7869c344fae635f10 100644 (file)
--- a/lib/VMCore/Core.cpp
+++ b/lib/VMCore/Core.cpp
@@ -2066,6 +2066,20 @@ LLVMValueRef LLVMBuildGlobalStringPtr(LLVMBuilderRef B, const char *Str,
   return wrap(unwrap(B)->CreateGlobalStringPtr(Str, Name));
 }
 
+LLVMBool LLVMGetVolatile(LLVMValueRef MemAccessInst) {
+  Value *P = unwrap<Value>(MemAccessInst);
+  if (LoadInst *LI = dyn_cast<LoadInst>(P))
+    return LI->isVolatile();
+  return cast<StoreInst>(P)->isVolatile();
+}
+
+void LLVMSetVolatile(LLVMValueRef MemAccessInst, LLVMBool isVolatile) {
+  Value *P = unwrap<Value>(MemAccessInst);
+  if (LoadInst *LI = dyn_cast<LoadInst>(P))
+    return LI->setVolatile(isVolatile);
+  return cast<StoreInst>(P)->setVolatile(isVolatile);
+}
+
 /*--.. Casts ...............................................................--*/
 
 LLVMValueRef LLVMBuildTrunc(LLVMBuilderRef B, LLVMValueRef Val,