glsl_to_tgsi: use UARL instead of I2F and ARL

Since TGSI now has a UARL opcode that takes an integer as the source, it is
no longer necessary to hack around the lack of an integer ARL opcode using I2F.
UARL is only emitted when native integers are enabled; ARL is still used
otherwise.

Reviewed-by: Brian Paul <brianp@vmware.com>

diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 4a5f6a26854acb202c01c2a7f61a5ecf38b3052f..892169822eb4ed2b36bb72abcf4c60bb60251d2a 100644 (file)
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -519,7 +519,7 @@ glsl_to_tgsi_visitor::emit(ir_instruction *ir, unsigned op,
 
    inst->function = NULL;
    
-   if (op == TGSI_OPCODE_ARL)
+   if (op == TGSI_OPCODE_ARL || op == TGSI_OPCODE_UARL)
       this->num_address_regs = 1;
    
    /* Update indirect addressing status used by TGSI */
@@ -746,16 +746,12 @@ void
 glsl_to_tgsi_visitor::emit_arl(ir_instruction *ir,
                                st_dst_reg dst, st_src_reg src0)
 {
-   st_src_reg tmp = get_temp(glsl_type::float_type);
+   int op = TGSI_OPCODE_ARL;
 
-   if (src0.type == GLSL_TYPE_INT)
-      emit(NULL, TGSI_OPCODE_I2F, st_dst_reg(tmp), src0);
-   else if (src0.type == GLSL_TYPE_UINT)
-      emit(NULL, TGSI_OPCODE_U2F, st_dst_reg(tmp), src0);
-   else
-      tmp = src0;
-   
-   emit(NULL, TGSI_OPCODE_ARL, dst, tmp);
+   if (src0.type == GLSL_TYPE_INT || src0.type == GLSL_TYPE_UINT)
+      op = TGSI_OPCODE_UARL;
+
+   emit(NULL, op, dst, src0);
 }
 
 /**