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gallivm: implement iabs/issg opcode.

Browse source 
Reimplemented by Olivier Galibert <galibert@pobox.com>

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-02-06 18:33:21 +00:00
parent f939776cb2
commit 729d914824
2 changed files with 26 additions and 1 deletions
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2
src/gallium/auxiliary/gallivm/lp_bld_arit.c
View file

@ -926,7 +926,7 @@ lp_build_sgn(struct lp_build_context *bld,
}
else
{
LLVMValueRef minus_one = lp_build_const_vec(bld->gallivm, type, -1.0);
LLVMValueRef minus_one = lp_build_const_int_vec(bld->gallivm, type, -1.0);
cond = lp_build_cmp(bld, PIPE_FUNC_GREATER, a, bld->zero);
res = lp_build_select(bld, cond, bld->one, minus_one);
}

25
src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
View file

@ -1007,6 +1007,17 @@ i2f_emit_cpu(
emit_data->args[0]);
}
/* TGSI_OPCODE_IABS (CPU Only) */
static void
iabs_emit_cpu(
const struct lp_build_tgsi_action * action,
struct lp_build_tgsi_context * bld_base,
struct lp_build_emit_data * emit_data)
{
emit_data->output[emit_data->chan] = lp_build_abs(&bld_base->int_bld,
emit_data->args[0]);
}
/* TGSI_OPCODE_IDIV (CPU Only) */
static void
idiv_emit_cpu(
@ -1101,6 +1112,18 @@ islt_emit_cpu(
iset_emit_cpu(action, bld_base, emit_data, PIPE_FUNC_LESS);
}
/* TGSI_OPCODE_ISSG (CPU Only) */
static void
issg_emit_cpu(
const struct lp_build_tgsi_action * action,
struct lp_build_tgsi_context * bld_base,
struct lp_build_emit_data * emit_data)
{
emit_data->output[emit_data->chan] = lp_build_sgn(&bld_base->int_bld,
emit_data->args[0]);
}
/* TGSI_OPCODE_LG2 (CPU Only) */
static void
lg2_emit_cpu(
@ -1541,6 +1564,7 @@ lp_set_default_actions_cpu(
bld_base->op_actions[TGSI_OPCODE_FLR].emit = flr_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_I2F].emit = i2f_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_IABS].emit = iabs_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_IDIV].emit = idiv_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_INEG].emit = ineg_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_IMAX].emit = imax_emit_cpu;
@ -1548,6 +1572,7 @@ lp_set_default_actions_cpu(
bld_base->op_actions[TGSI_OPCODE_ISGE].emit = isge_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_ISHR].emit = ishr_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_ISLT].emit = islt_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_ISSG].emit = issg_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_LG2].emit = lg2_emit_cpu;
bld_base->op_actions[TGSI_OPCODE_LOG].emit = log_emit_cpu;