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ac/llvm: implement nir_op_unpack_half_2x16_split_{x,y}

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nir_unpack_half_2x16_split_{x,y}_flush_to_zero don't have to be
implemented because RADV/LLVM doesn't allow flushing denorms
for 16-bit floating point.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6937>
This commit is contained in:
Samuel Pitoiset 2020-09-30 15:09:54 +02:00
parent cdf6d93498
commit f11d4f3127
1 changed files with 12 additions and 0 deletions
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12
src/amd/llvm/ac_nir_to_llvm.c
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@ -1053,6 +1053,18 @@ static void visit_alu(struct ac_nir_context *ctx, const nir_alu_instr *instr)
case nir_op_unpack_half_2x16:
result = emit_unpack_half_2x16(&ctx->ac, src[0]);
break;
case nir_op_unpack_half_2x16_split_x: {
assert(ac_get_llvm_num_components(src[0]) == 1);
LLVMValueRef tmp = emit_unpack_half_2x16(&ctx->ac, src[0]);
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_0, "");
break;
}
case nir_op_unpack_half_2x16_split_y: {
assert(ac_get_llvm_num_components(src[0]) == 1);
LLVMValueRef tmp = emit_unpack_half_2x16(&ctx->ac, src[0]);
result = LLVMBuildExtractElement(ctx->ac.builder, tmp, ctx->ac.i32_1, "");
break;
}
case nir_op_fddx:
case nir_op_fddy:
case nir_op_fddx_fine: