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vtn/opencl: Switch fma to conditionally use libclc for 32bit floats

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Reviewed-by: Dave Airlie <airlied@redhat.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6035>
This commit is contained in:
Jesse Natalie
2020-08-18 08:00:29 -07:00
parent 8fb25c48a4
commit 5f1855d896
1 changed files with 6 additions and 2 deletions
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8
src/compiler/spirv/vtn_opencl.c
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@@ -241,7 +241,6 @@ nir_alu_op_for_opencl_opcode(struct vtn_builder *b,
case OpenCLstd_Floor: return nir_op_ffloor;
case OpenCLstd_SHadd: return nir_op_ihadd;
case OpenCLstd_UHadd: return nir_op_uhadd;
case OpenCLstd_Fma: return nir_op_ffma;
case OpenCLstd_Fmax: return nir_op_fmax;
case OpenCLstd_SMax: return nir_op_imax;
case OpenCLstd_UMax: return nir_op_umax;
@@ -554,6 +553,11 @@ handle_special(struct vtn_builder *b, uint32_t opcode,
if (nb->shader->options->lower_ldexp)
break;
return nir_ldexp(nb, srcs[0], srcs[1]);
case OpenCLstd_Fma:
/* FIXME: the software implementation only supports fp32 for now. */
if (nb->shader->options->lower_ffma32 && srcs[0]->bit_size == 32)
break;
return nir_ffma(nb, srcs[0], srcs[1], srcs[2]);
default:
break;
}
@@ -750,7 +754,6 @@ vtn_handle_opencl_instruction(struct vtn_builder *b, SpvOp ext_opcode,
case OpenCLstd_UAdd_sat:
case OpenCLstd_Ceil:
case OpenCLstd_Floor:
case OpenCLstd_Fma:
case OpenCLstd_Fmax:
case OpenCLstd_SHadd:
case OpenCLstd_UHadd:
@@ -801,6 +804,7 @@ vtn_handle_opencl_instruction(struct vtn_builder *b, SpvOp ext_opcode,
case OpenCLstd_Cross:
case OpenCLstd_Degrees:
case OpenCLstd_Fdim:
case OpenCLstd_Fma:
case OpenCLstd_Distance:
case OpenCLstd_Fast_distance:
case OpenCLstd_Fast_length: