use autogenerated side-effect information

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26673 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 27 deletions

diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp
index 9685e94cc1..9c7bfcebce 100644
--- a/lib/Transforms/Utils/Local.cpp
+++ b/lib/Transforms/Utils/Local.cpp
@@ -307,33 +307,11 @@ bool llvm::isInstructionTriviallyDead(Instruction *I) {
   if (!I->mayWriteToMemory()) return true;
 
   if (CallInst *CI = dyn_cast<CallInst>(I))
-    if (Function *F = CI->getCalledFunction())
-      switch (F->getIntrinsicID()) {
-      default: break;
-      case Intrinsic::returnaddress:
-      case Intrinsic::frameaddress:
-      case Intrinsic::stacksave:
-      case Intrinsic::isunordered_f32:
-      case Intrinsic::isunordered_f64:
-      case Intrinsic::bswap_i16:
-      case Intrinsic::bswap_i32:
-      case Intrinsic::bswap_i64:
-      case Intrinsic::ctpop_i8:
-      case Intrinsic::ctpop_i16:
-      case Intrinsic::ctpop_i32:
-      case Intrinsic::ctpop_i64:
-      case Intrinsic::ctlz_i8:
-      case Intrinsic::ctlz_i16:
-      case Intrinsic::ctlz_i32:
-      case Intrinsic::ctlz_i64:
-      case Intrinsic::cttz_i8:
-      case Intrinsic::cttz_i16:
-      case Intrinsic::cttz_i32:
-      case Intrinsic::cttz_i64:
-      case Intrinsic::sqrt_f32:
-      case Intrinsic::sqrt_f64:
-        return true;             // These intrinsics have no side effects.
-      }
+    if (Function *F = CI->getCalledFunction()) {
+#define GET_SIDE_EFFECT_INFO
+#include "llvm/Intrinsics.gen"
+#undef GET_SIDE_EFFECT_INFO
+    }
   return false;
 }