diff options
Diffstat (limited to 'src/mesa/drivers/dri/i965/brw_vs_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_vs_emit.c | 43 |
1 files changed, 38 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 15154c3b8e..00efd3443d 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -147,7 +147,7 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) mrf = 4; for (i = 0; i < VERT_RESULT_MAX; i++) { - if (c->prog_data.outputs_written & (1 << i)) { + if (c->prog_data.outputs_written & BITFIELD64_BIT(i)) { c->nr_outputs++; assert(i < Elements(c->regs[PROGRAM_OUTPUT])); if (i == VERT_RESULT_HPOS) { @@ -1124,7 +1124,7 @@ static void emit_vertex_write( struct brw_vs_compile *c) /* Update the header for point size, user clipping flags, and -ve rhw * workaround. */ - if ((c->prog_data.outputs_written & (1<<VERT_RESULT_PSIZ)) || + if ((c->prog_data.outputs_written & BITFIELD64_BIT(VERT_RESULT_PSIZ)) || c->key.nr_userclip || BRW_IS_965(p->brw)) { struct brw_reg header1 = retype(get_tmp(c), BRW_REGISTER_TYPE_UD); @@ -1134,7 +1134,7 @@ static void emit_vertex_write( struct brw_vs_compile *c) brw_set_access_mode(p, BRW_ALIGN_16); - if (c->prog_data.outputs_written & (1<<VERT_RESULT_PSIZ)) { + if (c->prog_data.outputs_written & BITFIELD64_BIT(VERT_RESULT_PSIZ)) { struct brw_reg psiz = c->regs[PROGRAM_OUTPUT][VERT_RESULT_PSIZ]; brw_MUL(p, brw_writemask(header1, WRITEMASK_W), brw_swizzle1(psiz, 0), brw_imm_f(1<<11)); brw_AND(p, brw_writemask(header1, WRITEMASK_W), header1, brw_imm_ud(0x7ff<<8)); @@ -1224,7 +1224,7 @@ static void emit_vertex_write( struct brw_vs_compile *c) */ GLuint i, mrf = 0; for (i = c->first_overflow_output; i < VERT_RESULT_MAX; i++) { - if (c->prog_data.outputs_written & (1 << i)) { + if (c->prog_data.outputs_written & BITFIELD64_BIT(i)) { /* move from GRF to MRF */ brw_MOV(p, brw_message_reg(4+mrf), c->regs[PROGRAM_OUTPUT][i]); mrf++; @@ -1271,6 +1271,38 @@ post_vs_emit( struct brw_vs_compile *c, } } +static GLboolean +accumulator_contains(struct brw_vs_compile *c, struct brw_reg val) +{ + struct brw_compile *p = &c->func; + struct brw_instruction *prev_insn = &p->store[p->nr_insn - 1]; + + if (p->nr_insn == 0) + return GL_FALSE; + + if (val.address_mode != BRW_ADDRESS_DIRECT) + return GL_FALSE; + + switch (prev_insn->header.opcode) { + case BRW_OPCODE_MOV: + case BRW_OPCODE_MAC: + case BRW_OPCODE_MUL: + if (prev_insn->header.access_mode == BRW_ALIGN_16 && + prev_insn->header.execution_size == val.width && + prev_insn->bits1.da1.dest_reg_file == val.file && + prev_insn->bits1.da1.dest_reg_type == val.type && + prev_insn->bits1.da1.dest_address_mode == val.address_mode && + prev_insn->bits1.da1.dest_reg_nr == val.nr && + prev_insn->bits1.da16.dest_subreg_nr == val.subnr / 16 && + prev_insn->bits1.da16.dest_writemask == 0xf) + return GL_TRUE; + else + return GL_FALSE; + default: + return GL_FALSE; + } +} + static uint32_t get_predicate(const struct prog_instruction *inst) { @@ -1449,7 +1481,8 @@ void brw_vs_emit(struct brw_vs_compile *c ) unalias3(c, dst, args[0], args[1], args[2], emit_lrp_noalias); break; case OPCODE_MAD: - brw_MOV(p, brw_acc_reg(), args[2]); + if (!accumulator_contains(c, args[2])) + brw_MOV(p, brw_acc_reg(), args[2]); brw_MAC(p, dst, args[0], args[1]); break; case OPCODE_MAX: |