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1; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-compute %s | FileCheck %s2 3define void @main(i1 %expr) {4entry:5; CHECK: call i32 @dx.op.waveAllOp(i32 135, i1 %expr){{$}}6 %0 = call i32 @llvm.dx.wave.active.countbits(i1 %expr)7 ret void8}9 10declare i32 @llvm.dx.wave.active.countbits(i1)11