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-rw-r--r--src/intel/compiler/brw_fs_nir.cpp34
1 files changed, 28 insertions, 6 deletions
diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index aa57bb9d786..7eae0520277 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -1267,14 +1267,36 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
unreachable("not reached: should have been lowered");
case nir_op_ishl:
- bld.SHL(result, op[0], op[1]);
- break;
case nir_op_ishr:
- bld.ASR(result, op[0], op[1]);
- break;
- case nir_op_ushr:
- bld.SHR(result, op[0], op[1]);
+ case nir_op_ushr: {
+ fs_reg shift_count = op[1];
+
+ if (devinfo->is_cherryview || gen_device_info_is_9lp(devinfo)) {
+ if (op[1].file == VGRF &&
+ (result.type == BRW_REGISTER_TYPE_Q ||
+ result.type == BRW_REGISTER_TYPE_UQ)) {
+ shift_count = fs_reg(VGRF, alloc.allocate(dispatch_width / 4),
+ BRW_REGISTER_TYPE_UD);
+ shift_count.stride = 2;
+ bld.MOV(shift_count, op[1]);
+ }
+ }
+
+ switch (instr->op) {
+ case nir_op_ishl:
+ bld.SHL(result, op[0], shift_count);
+ break;
+ case nir_op_ishr:
+ bld.ASR(result, op[0], shift_count);
+ break;
+ case nir_op_ushr:
+ bld.SHR(result, op[0], shift_count);
+ break;
+ default:
+ unreachable("not reached");
+ }
break;
+ }
case nir_op_pack_half_2x16_split:
bld.emit(FS_OPCODE_PACK_HALF_2x16_SPLIT, result, op[0], op[1]);