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gallivm/nir: add quantize to f16 support 

Fixes:
dEQP-VK.spirv_assembly.instruction.graphics.opquantize.*

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6381>
This commit is contained in:
Dave Airlie 2020-06-19 16:59:11 +10:00
parent 1d4a560ba2
commit 96a5ced65f
1 changed files with 15 additions and 0 deletions
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15
src/gallium/auxiliary/gallivm/lp_bld_nir.c
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@ -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;