bitcast: skip setName on folded inputs

JuliaLang · May 22, 2024 · d11d196 · d11d196
1 parent e89c21b
commit d11d196
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/src/intrinsics.cpp b/src/intrinsics.cpp
@@ -639,8 +639,9 @@ static jl_cgval_t generic_bitcast(jl_codectx_t &ctx, ArrayRef<jl_cgval_t> argv)
                 // emit_inttoptr may undo an PtrToInt
                 setName(ctx.emission_context, vx, "bitcast_coercion");
         } else {
-            vx = emit_bitcast(ctx, vx, llvmt);
-            setName(ctx.emission_context, vx, "bitcast_coercion");
+            if (isa<Instruction>(vx) && !vx->hasName())
+                // emit_bitcast may undo another bitcast
+                setName(ctx.emission_context, vx, "bitcast_coercion");
         }
     }