Merge pull request JuliaLang#14305 from eschnett/eschnett/neg

Use `CreateNeg` for integer unary minus with newer LLVM versions
misxenia · Dec 8, 2015 · 14bb60a · 14bb60a
2 parents 844d5d5 + 6e3d351
commit 14bb60a
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/intrinsics.cpp b/src/intrinsics.cpp
@@ -1150,7 +1150,12 @@ static Value *emit_untyped_intrinsic(intrinsic f, Value *x, Value *y, Value *z,
     Value *den;
     Value *typemin;
     switch (f) {
-    case neg_int: return builder.CreateSub(ConstantInt::get(t, 0), JL_INT(x));
+    case neg_int:
+#ifdef LLVM37
+     return builder.CreateNeg(JL_INT(x));
+#else
+     return builder.CreateSub(ConstantInt::get(t, 0), JL_INT(x));
+#endif
     case add_int: return builder.CreateAdd(JL_INT(x), JL_INT(y));
     case sub_int: return builder.CreateSub(JL_INT(x), JL_INT(y));
     case mul_int: return builder.CreateMul(JL_INT(x), JL_INT(y));