[Mesa-dev] [PATCH] radeonsi: fix 64-bit loads from LDS

[Nicolai Hähnle]

From: Nicolai Hähnle <nicolai.haehnle at amd.com>

Fixes spec/arb_tessellation_shader/execution/dvec[23]-vs-tcs-tes, among
others.

Cc: mesa-stable at lists.freedesktop.org
---
 src/gallium/drivers/radeonsi/si_shader.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c
index 6a42a8f..0ee760f 100644
--- a/src/gallium/drivers/radeonsi/si_shader.c
+++ b/src/gallium/drivers/radeonsi/si_shader.c
@@ -904,21 +904,21 @@ static LLVMValueRef lds_load(struct lp_build_tgsi_context *bld_base,
 					      TGSI_NUM_CHANNELS);
 	}
 
 	dw_addr = lp_build_add(&bld_base->uint_bld, dw_addr,
 			    lp_build_const_int32(gallivm, swizzle));
 
 	value = build_indexed_load(ctx, ctx->lds, dw_addr, false);
 	if (tgsi_type_is_64bit(type)) {
 		LLVMValueRef value2;
 		dw_addr = lp_build_add(&bld_base->uint_bld, dw_addr,
-				       lp_build_const_int32(gallivm, swizzle + 1));
+				       lp_build_const_int32(gallivm, 1));
 		value2 = build_indexed_load(ctx, ctx->lds, dw_addr, false);
 		return si_llvm_emit_fetch_64bit(bld_base, type, value, value2);
 	}
 
 	return LLVMBuildBitCast(gallivm->builder, value,
 				tgsi2llvmtype(bld_base, type), "");
 }
 
 /**
  * Store to LDS.
-- 
2.7.4