From 96a5ced65f6cfb666d040f3d75f40c6c5878946b Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 19 Jun 2020 16:59:11 +1000 Subject: [PATCH] gallivm/nir: add quantize to f16 support Fixes: dEQP-VK.spirv_assembly.instruction.graphics.opquantize.* Reviewed-by: Roland Scheidegger Part-of: --- src/gallium/auxiliary/gallivm/lp_bld_nir.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/src/gallium/auxiliary/gallivm/lp_bld_nir.c b/src/gallium/auxiliary/gallivm/lp_bld_nir.c index 4c919e7a98f..99b35cfccd6 100644 --- a/src/gallium/auxiliary/gallivm/lp_bld_nir.c +++ b/src/gallium/auxiliary/gallivm/lp_bld_nir.c @@ -441,6 +441,18 @@ do_int_mod(struct lp_build_nir_context *bld_base, return LLVMBuildOr(builder, div_mask, result, ""); } +static LLVMValueRef +do_quantize_to_f16(struct lp_build_nir_context *bld_base, + LLVMValueRef src) +{ + struct gallivm_state *gallivm = bld_base->base.gallivm; + LLVMBuilderRef builder = gallivm->builder; + LLVMValueRef result; + result = LLVMBuildFPTrunc(builder, src, LLVMVectorType(LLVMHalfTypeInContext(gallivm->context), bld_base->base.type.length), ""); + result = LLVMBuildFPExt(builder, result, bld_base->base.vec_type, ""); + return result; +} + static LLVMValueRef do_alu_action(struct lp_build_nir_context *bld_base, nir_op op, unsigned src_bit_size[NIR_MAX_VEC_COMPONENTS], LLVMValueRef src[NIR_MAX_VEC_COMPONENTS]) { @@ -585,6 +597,9 @@ static LLVMValueRef do_alu_action(struct lp_build_nir_context *bld_base, case nir_op_fpow: result = lp_build_pow(&bld_base->base, src[0], src[1]); break; + case nir_op_fquantize2f16: + result = do_quantize_to_f16(bld_base, src[0]); + break; case nir_op_frcp: result = lp_build_rcp(get_flt_bld(bld_base, src_bit_size[0]), src[0]); break;