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i965/vs: add support for emitting SHL, SHR, ASR

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Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Chris Forbes
2012-11-22 16:23:23 +13:00
committed by Kenneth Graunke
parent 8f3570efc7
commit 894fe54ec9
2 changed files with 10 additions and 4 deletions
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src/mesa/drivers/dri/i965/brw_vec4.h
+3
View File
@@ -353,6 +353,9 @@ public:
vec4_instruction *DP3(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *DP4(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *DPH(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *SHL(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *SHR(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *ASR(dst_reg dst, src_reg src0, src_reg src1);
vec4_instruction *CMP(dst_reg dst, src_reg src0, src_reg src1,
uint32_t condition);
vec4_instruction *IF(src_reg src0, src_reg src1, uint32_t condition);
src/mesa/drivers/dri/i965/brw_vec4_visitor.cpp
+7 -4
View File
@@ -120,6 +120,9 @@ ALU2(XOR)
ALU2(DP3)
ALU2(DP4)
ALU2(DPH)
ALU2(SHL)
ALU2(SHR)
ALU2(ASR)
/** Gen4 predicated IF. */
vec4_instruction *
@@ -1324,14 +1327,14 @@ vec4_visitor::visit(ir_expression *ir)
break;
case ir_binop_lshift:
inst = emit(BRW_OPCODE_SHL, result_dst, op[0], op[1]);
inst = emit(SHL(result_dst, op[0], op[1]));
break;
case ir_binop_rshift:
if (ir->type->base_type == GLSL_TYPE_INT)
inst = emit(BRW_OPCODE_ASR, result_dst, op[0], op[1]);
inst = emit(ASR(result_dst, op[0], op[1]));
else
inst = emit(BRW_OPCODE_SHR, result_dst, op[0], op[1]);
inst = emit(SHR(result_dst, op[0], op[1]));
break;
case ir_binop_ubo_load: {
@@ -1350,7 +1353,7 @@ vec4_visitor::visit(ir_expression *ir)
if (const_offset_ir) {
offset = src_reg(const_offset / 16);
} else {
emit(BRW_OPCODE_SHR, dst_reg(offset), offset, src_reg(4));
emit(SHR(dst_reg(offset), offset, src_reg(4)));
}
vec4_instruction *pull =