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radv/ac: Fix shared memory offset calculation

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The index passed to get_shared_memory_ptr is an attribute slot index,
i.e. the index of a vec4 within LDS. Therefore this must be scaled by
sizeof(vec4) to give the LDS byte offset.

Fixes: f4e499ec79 ("radv: add initial non-conformant radv vulkan driver")
Signed-off-by: Alex Smith <asmith@feralinteractive.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
CC: <mesa-stable@lists.freedesktop.org>
This commit is contained in:
Alex Smith 2017-03-16 16:40:07 +00:00 • committed by Bas Nieuwenhuizen
parent e88cac1df0
commit ce4058dafd
1 changed files with 1 additions and 1 deletions
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2
src/amd/common/ac_nir_to_llvm.c
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@ -297,7 +297,7 @@ static LLVMValueRef get_shared_memory_ptr(struct nir_to_llvm_context *ctx,
LLVMValueRef ptr;
int addr_space;
offset = LLVMConstInt(ctx->i32, idx, false);
offset = LLVMConstInt(ctx->i32, idx * 16, false);
ptr = ctx->shared_memory;
ptr = LLVMBuildGEP(ctx->builder, ptr, &offset, 1, "");