aco: clear the current wave exception in the trap handler

This is required to re-enable VALU instructions in this wave, only
float exception seem to be affected.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31960>

src/amd/compiler/aco_instruction_selection.cpp

@@ -12438,6 +12438,11 @@ select_trap_handler_shader(Program* program, struct nir_shader* shader, ac_shade
    ac_hw_cache_flags cache_glc;
    cache_glc.value = ac_glc;
 
+   /* Clear the current wave exception, this is required to re-enable VALU
+    * instructions in this wave. Seems to be only needed for float exceptions.
+    */
+   bld.vop1(aco_opcode::v_clrexcp);
+
    if (ctx.program->gfx_level >= GFX9) {
       /* Get TMA. */
       bld.sopk(aco_opcode::s_getreg_b32, Definition(PhysReg{ttmp10}, s1),