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r600g: implement TGSI_OPCODE_BREAKC

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Signed-off-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Christoph Bumiller
2014-05-17 01:20:16 +02:00
committed by Marek Olšák
parent 822ac96802
commit 6544a4a342
1 changed files with 24 additions and 1 deletions
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src/gallium/drivers/r600/r600_shader.c
+24 -1
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@@ -6265,6 +6265,29 @@ static int tgsi_endloop(struct r600_shader_ctx *ctx)
return 0;
}
static int tgsi_loop_breakc(struct r600_shader_ctx *ctx)
{
int r;
unsigned int fscp;
for (fscp = ctx->bc->fc_sp; fscp > 0; fscp--)
{
if (FC_LOOP == ctx->bc->fc_stack[fscp].type)
break;
}
if (fscp == 0) {
R600_ERR("BREAKC not inside loop/endloop pair\n");
return -EINVAL;
}
r = emit_logic_pred(ctx, ALU_OP2_PRED_SETE_INT, CF_OP_ALU_BREAK);
if (r)
return r;
fc_set_mid(ctx, fscp);
return 0;
}
static int tgsi_loop_brk_cont(struct r600_shader_ctx *ctx)
{
unsigned int fscp;
@@ -6496,7 +6519,7 @@ static struct r600_shader_tgsi_instruction r600_shader_tgsi_instruction[] = {
{TGSI_OPCODE_CALLNZ, 0, ALU_OP0_NOP, tgsi_unsupported},
/* gap */
{114, 0, ALU_OP0_NOP, tgsi_unsupported},
{TGSI_OPCODE_BREAKC, 0, ALU_OP0_NOP, tgsi_unsupported},
{TGSI_OPCODE_BREAKC, 0, ALU_OP0_NOP, tgsi_loop_breakc},
{TGSI_OPCODE_KILL_IF, 0, ALU_OP2_KILLGT, tgsi_kill}, /* conditional kill */
{TGSI_OPCODE_END, 0, ALU_OP0_NOP, tgsi_end}, /* aka HALT */
/* gap */