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ac/nir: Fix TCS output LDS offsets. 

When a channel was not set we also did not increase the LDS address,
while that obviously should happen.

The output loading code was inadvertently fixed which resulted in a
mismatch causing the SaschaWillems tessellation demo to result
in corrupt rendering.

Fixes: 7898eb9a60 "ac: rework load_tcs_{inputs,outputs}"
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Bas Nieuwenhuizen 2018-01-19 01:20:12 +01:00
parent bd5c942cef
commit 4a9fd90e1e
1 changed files with 6 additions and 5 deletions
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11
src/amd/common/ac_nir_to_llvm.c
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@ -2968,16 +2968,17 @@ store_tcs_output(struct ac_shader_abi *abi,
continue;
LLVMValueRef value = ac_llvm_extract_elem(&ctx->ac, src, chan - component);
if (store_lds || is_tess_factor)
ac_lds_store(&ctx->ac, dw_addr, value);
if (store_lds || is_tess_factor) {
LLVMValueRef dw_addr_chan =
LLVMBuildAdd(ctx->builder, dw_addr,
LLVMConstInt(ctx->ac.i32, chan, false), "");
ac_lds_store(&ctx->ac, dw_addr_chan, value);
}
if (!is_tess_factor && writemask != 0xF)
ac_build_buffer_store_dword(&ctx->ac, ctx->hs_ring_tess_offchip, value, 1,
buf_addr, ctx->oc_lds,
4 * (base + chan), 1, 0, true, false);
dw_addr = LLVMBuildAdd(ctx->builder, dw_addr,
ctx->ac.i32_1, "");
}
if (writemask == 0xF) {