diff --git a/src/amd/compiler/aco_optimizer.cpp b/src/amd/compiler/aco_optimizer.cpp
index c3d2d935246..a6bc1d85ec6 100644
--- a/src/amd/compiler/aco_optimizer.cpp
+++ b/src/amd/compiler/aco_optimizer.cpp
@@ -4308,7 +4308,7 @@ combine_instruction(opt_ctx& ctx, aco_ptr<Instruction>& instr)
          add_opt(v_mul_f32, v_fma_f32, 0x3, "120", create_fma_cb);
          add_opt(s_mul_f32, v_fma_f32, 0x3, "120", create_fma_cb);
       }
-      if (ctx.program->gfx_level >= GFX10_3)
+      if (ctx.program->gfx_level >= GFX10_3 && ctx.fp_mode.denorm32 == 0)
          add_opt(v_mul_legacy_f32, v_fma_legacy_f32, 0x3, "120", create_fma_cb);
    } else if (info.opcode == aco_opcode::v_add_f16) {
       if (ctx.program->gfx_level < GFX9 && ctx.fp_mode.denorm16_64 == 0) {