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glsl_to_tgsi: use UARL instead of I2F and ARL

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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>
This commit is contained in:
Bryan Cain
2011-09-02 00:10:50 -05:00
parent 324ac982d8
commit 10dbd02927
1 changed files with 6 additions and 10 deletions
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src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+6 -10
View File
@@ -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);
}
/**