diff options
Diffstat (limited to 'src/gallium/auxiliary/gallivm')
| -rw-r--r-- | src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c | 57 |
1 files changed, 47 insertions, 10 deletions
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c index 2d4eb9a925c..2bc90579a2a 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c @@ -917,6 +917,43 @@ emit_tex( struct lp_build_tgsi_soa_context *bld, texel); } +static boolean +near_end_of_shader(struct lp_build_tgsi_soa_context *bld, + int pc) +{ + int i; + + for (i = 0; i < 5; i++) { + unsigned opcode; + + if (pc + i >= bld->info->num_instructions) + return TRUE; + + opcode = bld->instructions[pc + i].Instruction.Opcode; + + if (opcode == TGSI_OPCODE_END) + return TRUE; + + if (opcode == TGSI_OPCODE_TEX || + opcode == TGSI_OPCODE_TXP || + opcode == TGSI_OPCODE_TXD || + opcode == TGSI_OPCODE_TXB || + opcode == TGSI_OPCODE_TXL || + opcode == TGSI_OPCODE_TXF || + opcode == TGSI_OPCODE_TXQ || + opcode == TGSI_OPCODE_CAL || + opcode == TGSI_OPCODE_CALLNZ || + opcode == TGSI_OPCODE_IF || + opcode == TGSI_OPCODE_IFC || + opcode == TGSI_OPCODE_BGNLOOP || + opcode == TGSI_OPCODE_SWITCH) + return FALSE; + } + + return TRUE; +} + + /** * Kill fragment if any of the src register values are negative. @@ -924,7 +961,8 @@ emit_tex( struct lp_build_tgsi_soa_context *bld, static void emit_kil( struct lp_build_tgsi_soa_context *bld, - const struct tgsi_full_instruction *inst ) + const struct tgsi_full_instruction *inst, + int pc) { const struct tgsi_full_src_register *reg = &inst->Src[0]; LLVMValueRef terms[NUM_CHANNELS]; @@ -966,9 +1004,8 @@ emit_kil( if(mask) { lp_build_mask_update(bld->mask, mask); - /* XXX: figure out if we are at the end of the shader and skip this: - */ - lp_build_mask_check(bld->mask); + if (!near_end_of_shader(bld, pc)) + lp_build_mask_check(bld->mask); } } @@ -981,7 +1018,8 @@ emit_kil( */ static void emit_kilp(struct lp_build_tgsi_soa_context *bld, - const struct tgsi_full_instruction *inst) + const struct tgsi_full_instruction *inst, + int pc) { LLVMValueRef mask; @@ -997,9 +1035,8 @@ emit_kilp(struct lp_build_tgsi_soa_context *bld, lp_build_mask_update(bld->mask, mask); - /* XXX: figure out if we are at the end of the shader and skip this: - */ - lp_build_mask_check(bld->mask); + if (!near_end_of_shader(bld, pc)) + lp_build_mask_check(bld->mask); } static void @@ -1548,12 +1585,12 @@ emit_instruction( case TGSI_OPCODE_KILP: /* predicated kill */ - emit_kilp( bld, inst ); + emit_kilp( bld, inst, (*pc)-1 ); break; case TGSI_OPCODE_KIL: /* conditional kill */ - emit_kil( bld, inst ); + emit_kil( bld, inst, (*pc)-1 ); break; case TGSI_OPCODE_PK2H: |