[Mesa-dev] [PATCH v3 28/42] intel/compiler: handle 64-bit float to 8-bit integer conversions

[Iago Toral Quiroga]

These are not directly supported in hardware and brw_nir_lower_conversions
should have taken care of that before we get here. Also, while we are
at it, make sure 64-bit integer to 8-bit are also properly split by
the same lowering pass, since they have the same hardware restrictions.
---
 src/intel/compiler/brw_fs_nir.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index cf546b8ff09..e454578d99b 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -786,6 +786,10 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
    case nir_op_f2f16:
    case nir_op_i2f16:
    case nir_op_u2f16:
+   case nir_op_i2i8:
+   case nir_op_u2u8:
+   case nir_op_f2i8:
+   case nir_op_f2u8:
       assert(type_sz(op[0].type) < 8); /* brw_nir_lower_conversions */
       inst = bld.MOV(result, op[0]);
       inst->saturate = instr->dest.saturate;
@@ -824,8 +828,6 @@ fs_visitor::nir_emit_alu(const fs_builder &bld, nir_alu_instr *instr)
    case nir_op_u2u32:
    case nir_op_i2i16:
    case nir_op_u2u16:
-   case nir_op_i2i8:
-   case nir_op_u2u8:
       inst = bld.MOV(result, op[0]);
       inst->saturate = instr->dest.saturate;
       break;
-- 
2.17.1