[llvm] r193597 - llvm-c: Make LLVM{Get, Set}Alignment work on {Load, Store}Inst too

[Anders Waldenborg]

Author: andersg
Date: Tue Oct 29 04:02:02 2013
New Revision: 193597

URL: http://llvm.org/viewvc/llvm-project?rev=193597&view=rev
Log:
llvm-c: Make LLVM{Get,Set}Alignment work on {Load,Store}Inst too

Patch by Peter Zotov

Differential Revision: http://llvm-reviews.chandlerc.com/D1910


Modified:
    llvm/trunk/include/llvm-c/Core.h
    llvm/trunk/lib/IR/Core.cpp

Modified: llvm/trunk/include/llvm-c/Core.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm-c/Core.h?rev=193597&r1=193596&r2=193597&view=diff
==============================================================================
--- llvm/trunk/include/llvm-c/Core.h (original)
+++ llvm/trunk/include/llvm-c/Core.h Tue Oct 29 04:02:02 2013
@@ -1665,8 +1665,33 @@ const char *LLVMGetSection(LLVMValueRef
 void LLVMSetSection(LLVMValueRef Global, const char *Section);
 LLVMVisibility LLVMGetVisibility(LLVMValueRef Global);
 void LLVMSetVisibility(LLVMValueRef Global, LLVMVisibility Viz);
-unsigned LLVMGetAlignment(LLVMValueRef Global);
-void LLVMSetAlignment(LLVMValueRef Global, unsigned Bytes);
+
+/**
+ * @defgroup LLVMCCoreValueWithAlignment Values with alignment
+ *
+ * Functions in this group only apply to values with alignment, i.e.
+ * global variables, load and store instructions.
+ */
+
+/**
+ * Obtain the preferred alignment of the value.
+ * @see llvm::LoadInst::getAlignment()
+ * @see llvm::StoreInst::getAlignment()
+ * @see llvm::GlobalValue::getAlignment()
+ */
+unsigned LLVMGetAlignment(LLVMValueRef V);
+
+/**
+ * Set the preferred alignment of the value.
+ * @see llvm::LoadInst::setAlignment()
+ * @see llvm::StoreInst::setAlignment()
+ * @see llvm::GlobalValue::setAlignment()
+ */
+void LLVMSetAlignment(LLVMValueRef V, unsigned Bytes);
+
+/**
+  * @}
+  */
 
 /**
  * @defgroup LLVMCoreValueConstantGlobalVariable Global Variables

Modified: llvm/trunk/lib/IR/Core.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/IR/Core.cpp?rev=193597&r1=193596&r2=193597&view=diff
==============================================================================
--- llvm/trunk/lib/IR/Core.cpp (original)
+++ llvm/trunk/lib/IR/Core.cpp Tue Oct 29 04:02:02 2013
@@ -1240,12 +1240,30 @@ void LLVMSetVisibility(LLVMValueRef Glob
     ->setVisibility(static_cast<GlobalValue::VisibilityTypes>(Viz));
 }
 
-unsigned LLVMGetAlignment(LLVMValueRef Global) {
-  return unwrap<GlobalValue>(Global)->getAlignment();
+/*--.. Operations on global variables, load and store instructions .........--*/
+
+unsigned LLVMGetAlignment(LLVMValueRef V) {
+  Value *P = unwrap<Value>(V);
+  if (GlobalValue *GV = dyn_cast<GlobalValue>(P))
+    return GV->getAlignment();
+  if (LoadInst *LI = dyn_cast<LoadInst>(P))
+    return LI->getAlignment();
+  if (StoreInst *SI = dyn_cast<StoreInst>(P))
+    return SI->getAlignment();
+
+  llvm_unreachable("only GlobalValue, LoadInst and StoreInst have alignment");
 }
 
-void LLVMSetAlignment(LLVMValueRef Global, unsigned Bytes) {
-  unwrap<GlobalValue>(Global)->setAlignment(Bytes);
+void LLVMSetAlignment(LLVMValueRef V, unsigned Bytes) {
+  Value *P = unwrap<Value>(V);
+  if (GlobalValue *GV = dyn_cast<GlobalValue>(P))
+    GV->setAlignment(Bytes);
+  else if (LoadInst *LI = dyn_cast<LoadInst>(P))
+    LI->setAlignment(Bytes);
+  else if (StoreInst *SI = dyn_cast<StoreInst>(P))
+    SI->setAlignment(Bytes);
+
+  llvm_unreachable("only GlobalValue, LoadInst and StoreInst have alignment");
 }
 
 /*--.. Operations on global variables ......................................--*/