Module: Mesa Branch: master Commit: 4d0b02bb5a455eabd2caf3386c6ed17f164efff8 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=4d0b02bb5a455eabd2caf3386c6ed17f164efff8
Author: Daniel Schürmann <[email protected]> Date: Mon Jul 16 20:45:24 2018 +0200 ac: add support for 16bit load_push_constant Reviewed-by: Bas Nieuwenhuizen <[email protected]> --- src/amd/common/ac_nir_to_llvm.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index d3168d08eb..542b880e88 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -1395,6 +1395,26 @@ static LLVMValueRef visit_load_push_constant(struct ac_nir_context *ctx, get_src(ctx, instr->src[0]), ""); ptr = ac_build_gep0(&ctx->ac, ctx->abi->push_constants, addr); + + if (instr->dest.ssa.bit_size == 16) { + unsigned load_dwords = instr->dest.ssa.num_components / 2 + 1; + LLVMTypeRef vec_type = LLVMVectorType(LLVMInt16Type(), 2 * load_dwords); + ptr = ac_cast_ptr(&ctx->ac, ptr, vec_type); + LLVMValueRef res = LLVMBuildLoad(ctx->ac.builder, ptr, ""); + res = LLVMBuildBitCast(ctx->ac.builder, res, vec_type, ""); + LLVMValueRef cond = LLVMBuildLShr(ctx->ac.builder, addr, ctx->ac.i32_1, ""); + cond = LLVMBuildTrunc(ctx->ac.builder, cond, LLVMInt1Type(), ""); + LLVMValueRef mask[] = { LLVMConstInt(ctx->ac.i32, 0, false), LLVMConstInt(ctx->ac.i32, 1, false), + LLVMConstInt(ctx->ac.i32, 2, false), LLVMConstInt(ctx->ac.i32, 3, false), + LLVMConstInt(ctx->ac.i32, 4, false)}; + LLVMValueRef swizzle_aligned = LLVMConstVector(&mask[0], instr->dest.ssa.num_components); + LLVMValueRef swizzle_unaligned = LLVMConstVector(&mask[1], instr->dest.ssa.num_components); + LLVMValueRef shuffle_aligned = LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_aligned, ""); + LLVMValueRef shuffle_unaligned = LLVMBuildShuffleVector(ctx->ac.builder, res, res, swizzle_unaligned, ""); + res = LLVMBuildSelect(ctx->ac.builder, cond, shuffle_unaligned, shuffle_aligned, ""); + return LLVMBuildBitCast(ctx->ac.builder, res, get_def_type(ctx, &instr->dest.ssa), ""); + } + ptr = ac_cast_ptr(&ctx->ac, ptr, get_def_type(ctx, &instr->dest.ssa)); return LLVMBuildLoad(ctx->ac.builder, ptr, ""); _______________________________________________ mesa-commit mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/mesa-commit
