Use LLVM's FNeg to get a compliant neg_float for all Float types.

halleysfifthinc · Oct 14, 2020 · 8f285bd · 8f285bd
1 parent 2bc5b32
commit 8f285bd
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/intrinsics.cpp b/src/intrinsics.cpp
@@ -1038,8 +1038,7 @@ static Value *emit_untyped_intrinsic(jl_codectx_t &ctx, intrinsic f, Value **arg
 
  }
 
-// Implements IEEE negate. See issue #7868
- case neg_float: return math_builder(ctx)().CreateFSub(ConstantFP::get(t, -0.0), x);
+ case neg_float: return math_builder(ctx)().CreateFNeg(x);
  case neg_float_fast: return math_builder(ctx, true)().CreateFNeg(x);
  case add_float: return math_builder(ctx)().CreateFAdd(x, y);
  case sub_float: return math_builder(ctx)().CreateFSub(x, y);