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gallivm: Implement the breakc instruction

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Required by more modern examples. Like BRK but with a condition.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Reviewed-by: José Fonseca <jfonseca@vmware.com>
This commit is contained in:
Zack Rusin
2013-03-27 02:38:32 -07:00
parent b66ffcf2f8
commit f20f981553
2 changed files with 34 additions and 0 deletions
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src/gallium/auxiliary/gallivm/lp_bld_tgsi_action.c
+1
View File
@@ -864,6 +864,7 @@ lp_set_default_actions(struct lp_build_tgsi_context * bld_base)
bld_base->op_actions[TGSI_OPCODE_SCS] = scs_action;
bld_base->op_actions[TGSI_OPCODE_XPD] = xpd_action;
bld_base->op_actions[TGSI_OPCODE_BREAKC].fetch_args = scalar_unary_fetch_args;
bld_base->op_actions[TGSI_OPCODE_COS].fetch_args = scalar_unary_fetch_args;
bld_base->op_actions[TGSI_OPCODE_EX2].fetch_args = scalar_unary_fetch_args;
bld_base->op_actions[TGSI_OPCODE_IF].fetch_args = scalar_unary_fetch_args;
src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+33
View File
@@ -213,6 +213,23 @@ static void lp_exec_break(struct lp_exec_mask *mask)
lp_exec_mask_update(mask);
}
static void lp_exec_break_condition(struct lp_exec_mask *mask,
LLVMValueRef cond)
{
LLVMBuilderRef builder = mask->bld->gallivm->builder;
LLVMValueRef exec_mask = LLVMBuildNot(builder,
mask->exec_mask,
"break");
exec_mask = LLVMBuildAnd(builder, exec_mask, cond, "");
mask->break_mask = LLVMBuildAnd(builder,
mask->break_mask,
exec_mask, "break_full");
lp_exec_mask_update(mask);
}
static void lp_exec_continue(struct lp_exec_mask *mask)
{
LLVMBuilderRef builder = mask->bld->gallivm->builder;
@@ -2251,6 +2268,21 @@ brk_emit(
lp_exec_break(&bld->exec_mask);
}
static void
breakc_emit(
const struct lp_build_tgsi_action * action,
struct lp_build_tgsi_context * bld_base,
struct lp_build_emit_data * emit_data)
{
LLVMValueRef tmp;
struct lp_build_tgsi_soa_context * bld = lp_soa_context(bld_base);
tmp = lp_build_cmp(&bld_base->base, PIPE_FUNC_NOTEQUAL,
emit_data->args[0], bld->bld_base.base.zero);
lp_exec_break_condition(&bld->exec_mask, tmp);
}
static void
if_emit(
const struct lp_build_tgsi_action * action,
@@ -2580,6 +2612,7 @@ lp_build_tgsi_soa(struct gallivm_state *gallivm,
bld.bld_base.op_actions[TGSI_OPCODE_BGNLOOP].emit = bgnloop_emit;
bld.bld_base.op_actions[TGSI_OPCODE_BGNSUB].emit = bgnsub_emit;
bld.bld_base.op_actions[TGSI_OPCODE_BRK].emit = brk_emit;
bld.bld_base.op_actions[TGSI_OPCODE_BREAKC].emit = breakc_emit;
bld.bld_base.op_actions[TGSI_OPCODE_CAL].emit = cal_emit;
bld.bld_base.op_actions[TGSI_OPCODE_CONT].emit = cont_emit;
bld.bld_base.op_actions[TGSI_OPCODE_DDX].emit = ddx_emit;