diff options
Diffstat (limited to 'src/amd')
| -rw-r--r-- | src/amd/compiler/aco_instruction_selection.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/amd/compiler/aco_instruction_selection.cpp b/src/amd/compiler/aco_instruction_selection.cpp index 11f7805b56d..0847d5b6ca8 100644 --- a/src/amd/compiler/aco_instruction_selection.cpp +++ b/src/amd/compiler/aco_instruction_selection.cpp @@ -3214,6 +3214,15 @@ void visit_load_input(isel_context *ctx, nir_intrinsic_instr *instr) unsigned channel_start = 0; bool direct_fetch = false; + /* skip unused channels at the start */ + if (vtx_info->chan_byte_size && !post_shuffle) { + channel_start = ffs(mask) - 1; + for (unsigned i = 0; i < channel_start; i++) + channels[i] = Temp(0, s1); + } else if (vtx_info->chan_byte_size && post_shuffle && !(mask & 0x8)) { + num_channels = 3 - (ffs(mask) - 1); + } + /* load channels */ while (channel_start < num_channels) { unsigned fetch_size = num_channels - channel_start; @@ -3290,7 +3299,7 @@ void visit_load_input(isel_context *ctx, nir_intrinsic_instr *instr) unsigned num_temp = 0; for (unsigned i = 0; i < dst.size(); i++) { unsigned idx = i + component; - if (idx < num_channels && channels[swizzle[idx]].id()) { + if (swizzle[idx] < num_channels && channels[swizzle[idx]].id()) { Temp channel = channels[swizzle[idx]]; if (idx == 3 && alpha_adjust != RADV_ALPHA_ADJUST_NONE) channel = adjust_vertex_fetch_alpha(ctx, alpha_adjust, channel); |