[Mesa-dev] [PATCH] ac: fix nir_intrinsic_shared_atomic_comp_swap handling

[Timothy Arceri]

Following on from 49879f377870 this makes sure we use the correct
src index.

Fixes cts test:
KHR-GL46.compute_shader.atomic-case3
---
 src/amd/common/ac_nir_to_llvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 2bd1257a52..40201f5d10 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -3998,7 +3998,7 @@ static LLVMValueRef visit_var_atomic(struct ac_nir_context *ctx,
 
 	if (instr->intrinsic == nir_intrinsic_var_atomic_comp_swap ||
 	    instr->intrinsic == nir_intrinsic_shared_atomic_comp_swap) {
-		LLVMValueRef src1 = get_src(ctx, instr->src[1]);
+		LLVMValueRef src1 = get_src(ctx, instr->src[src_idx + 1]);
 		result = LLVMBuildAtomicCmpXchg(ctx->ac.builder,
 						ptr, src, src1,
 						LLVMAtomicOrderingSequentiallyConsistent,
-- 
2.14.3