================
@@ -77,6 +77,8 @@ let TargetPrefix = "spv" in {
Intrinsic<[llvm_i32_ty], [], [NoUndef<RetIndex>,
IntrNoMem, IntrWillReturn]>;
def int_spv_subgroup_max_size :
ClangBuiltin<"__builtin_spirv_subgroup_max_size">,
Intrinsic<[llvm_i32_ty], [], [NoUndef<RetIndex>,
IntrNoMem, IntrWillReturn]>;
+ def int_spv_subgroup_ballot :
ClangBuiltin<"__builtin_spirv_subgroup_ballot">,
----------------
jhuber6 wrote:
They both emit the same `OpNonUniformBallot` opcodes right now, might need to
split them if they ever do something differently. I think DX can have a 128 bit
wave size while all the hardware is 64 or less?
https://github.com/llvm/llvm-project/pull/174862
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