Add Performance Warning

2013-10-28 16:51:02 -04:00
parent 09a6e37154
commit 8ee3178166
1 changed files with 2 additions and 0 deletions
--- a/opt.cpp
+++ b/opt.cpp
@@ -4998,6 +4998,8 @@ ReplaceStdlibShiftPass::runOnBasicBlock(llvm::BasicBlock &bb) {
                                                                   shuffleIdxs, "vecShift", ci);
                ci->replaceAllUsesWith(shuffle);
                modifiedAny = true;
+              } else {
+                PerformanceWarning(SourcePos(), "Stdlib shift() called without constant shift amount."); 
              }
            }
          }