From a78b26fff04026a24189ecad7ec85bfe0df2cce1 Mon Sep 17 00:00:00 2001 From: Zou Nan hai Date: Mon, 30 Apr 2007 15:24:38 +0800 Subject: [PATCH] support nested function call else instruction fix. --- src/mesa/drivers/dri/i965/brw_vs.h | 2 +- src/mesa/drivers/dri/i965/brw_vs_emit.c | 30 ++++++++++++++++-------------- 2 files changed, 17 insertions(+), 15 deletions(-) diff --git a/src/mesa/drivers/dri/i965/brw_vs.h b/src/mesa/drivers/dri/i965/brw_vs.h index c31a1b6..912ab56 100644 --- a/src/mesa/drivers/dri/i965/brw_vs.h +++ b/src/mesa/drivers/dri/i965/brw_vs.h @@ -67,7 +67,7 @@ struct brw_vs_compile { struct brw_reg r1; struct brw_reg regs[PROGRAM_ADDRESS+1][128]; struct brw_reg tmp; - struct brw_reg ret; + struct brw_reg stack; struct brw_reg userplane[6]; diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c index 613ee03..f8367c4 100644 --- a/src/mesa/drivers/dri/i965/brw_vs_emit.c +++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c @@ -135,16 +135,8 @@ static void brw_vs_alloc_regs( struct brw_vs_compile *c ) reg++; } - c->ret = brw_reg(BRW_GENERAL_REGISTER_FILE, - reg, - 0, - BRW_REGISTER_TYPE_D, - BRW_VERTICAL_STRIDE_8, - BRW_WIDTH_8, - BRW_HORIZONTAL_STRIDE_1, - BRW_SWIZZLE_XXXX, - WRITEMASK_X); - reg++; + c->stack = brw_uw16_reg(BRW_GENERAL_REGISTER_FILE, reg, 0); + reg += 2; /* Some opcodes need an internal temporary: @@ -956,7 +948,8 @@ void brw_vs_emit(struct brw_vs_compile *c ) GLuint nr_insns = c->vp->program.Base.NumInstructions; GLuint insn, if_insn = 0; struct brw_instruction *end_inst; - struct brw_instruction *if_inst[32]; + struct brw_instruction *if_inst[MAX_IFSN]; + struct brw_indirect stack_index = brw_indirect(0, 0); if (INTEL_DEBUG & DEBUG_VS) { _mesa_printf("\n\n\nvs-emit:\n"); @@ -970,6 +963,7 @@ void brw_vs_emit(struct brw_vs_compile *c ) /* Static register allocation */ brw_vs_alloc_regs(c); + brw_MOV(p, get_addr_reg(stack_index), brw_address(c->stack)); for (insn = 0; insn < nr_insns; insn++) { @@ -1094,7 +1088,7 @@ void brw_vs_emit(struct brw_vs_compile *c ) if_inst[if_insn++] = brw_IF(p, BRW_EXECUTE_8); break; case OPCODE_ELSE: - brw_ELSE(p, if_inst[if_insn]); + if_inst[if_insn-1] = brw_ELSE(p, if_inst[if_insn-1]); break; case OPCODE_ENDIF: assert(if_insn > 0); @@ -1106,12 +1100,20 @@ void brw_vs_emit(struct brw_vs_compile *c ) brw_set_predicate_control_flag_value(p, 0xFF); break; case OPCODE_CAL: - brw_ADD(p, c->ret, brw_ip_reg(), brw_imm_d(2*16)); + brw_set_access_mode(p, BRW_ALIGN_1); + brw_ADD(p, deref_1uw(stack_index, 0), brw_ip_reg(), brw_imm_d(3*16)); + brw_set_access_mode(p, BRW_ALIGN_16); + brw_ADD(p, get_addr_reg(stack_index), + get_addr_reg(stack_index), brw_imm_d(4)); inst->Data = &p->store[p->nr_insn]; brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16)); break; case OPCODE_RET: - brw_MOV(p, brw_ip_reg(), c->ret); + brw_ADD(p, get_addr_reg(stack_index), + get_addr_reg(stack_index), brw_imm_d(-4)); + brw_set_access_mode(p, BRW_ALIGN_1); + brw_MOV(p, brw_ip_reg(), deref_1uw(stack_index, 0)); + brw_set_access_mode(p, BRW_ALIGN_16); case OPCODE_END: brw_ADD(p, brw_ip_reg(), brw_ip_reg(), brw_imm_d(1*16)); break; -- 2.7.4