R600: Use masked read sel for texture instructions

[oota-llvm.git] / lib / IR / Instruction.cpp

diff --git a/lib/IR/Instruction.cpp b/lib/IR/Instruction.cpp
index 42df5d71182d88f70ae09c5b80e34f40f14b72b4..2b5a0b39c3161a061378b7b03cab221b30e5e686 100644 (file)
--- a/lib/IR/Instruction.cpp
+++ b/lib/IR/Instruction.cpp
@@ -455,14 +455,18 @@ bool Instruction::mayWriteToMemory() const {
   }
 }
 
-/// mayThrow - Return true if this instruction may throw an exception.
-///
 bool Instruction::mayThrow() const {
   if (const CallInst *CI = dyn_cast<CallInst>(this))
     return !CI->doesNotThrow();
   return isa<ResumeInst>(this);
 }
 
+bool Instruction::mayReturn() const {
+  if (const CallInst *CI = dyn_cast<CallInst>(this))
+    return !CI->doesNotReturn();
+  return true;
+}
+
 /// isAssociative - Return true if the instruction is associative:
 ///
 ///   Associative operators satisfy:  x op (y op z) === (x op y) op z