Mesa (master): ac/nir: Only use the first component for SSBO atomics.

[Bas Nieuwenhuizen]

Module: Mesa
Branch: master
Commit: 92d7563fba04219a0a96a4949182b1f94b6d79b0
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=92d7563fba04219a0a96a4949182b1f94b6d79b0

Author: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Date:   Thu Dec  1 00:32:41 2016 +0100

ac/nir: Only use the first component for SSBO atomics.

Signed-off-by: Bas Nieuwenhuizen <basni at google.com>
Reviewed-by: Dave Airlie <airlied at redhat.com>

---

 src/amd/common/ac_nir_to_llvm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 6b91e93..ec1ba9e 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -1952,9 +1952,9 @@ static LLVMValueRef visit_atomic_ssbo(struct nir_to_llvm_context *ctx,
 		ctx->shader_info->fs.writes_memory = true;
 
 	if (instr->intrinsic == nir_intrinsic_ssbo_atomic_comp_swap) {
-		params[arg_count++] = get_src(ctx, instr->src[3]);
+		params[arg_count++] = llvm_extract_elem(ctx, get_src(ctx, instr->src[3]), 0);
 	}
-	params[arg_count++] = get_src(ctx, instr->src[2]);
+	params[arg_count++] = llvm_extract_elem(ctx, get_src(ctx, instr->src[2]), 0);
 	params[arg_count++] = get_src(ctx, instr->src[0]);
 	params[arg_count++] = LLVMConstInt(ctx->i32, 0, false); /* vindex */
 	params[arg_count++] = get_src(ctx, instr->src[1]);      /* voffset */