aco: ignore precise flag when optimizing integer clamps

Signed-off-by: Rhys Perry <pendingchaos02@gmail.com>
Reviewed-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16296>

src/amd/compiler/aco_optimizer.cpp

@@ -2851,7 +2851,8 @@ combine_clamp(opt_ctx& ctx, aco_ptr<Instruction>& instr, aco_opcode min, aco_opc
          /* max(min(src, upper), lower) returns upper if src is NaN, but
           * med3(src, lower, upper) returns lower.
           */
-         if (precise && instr->opcode != min)
+         if (precise && instr->opcode != min &&
+             (min == aco_opcode::v_min_f16 || min == aco_opcode::v_min_f32))
             continue;
 
          int const0_idx = -1, const1_idx = -1;