================
@@ -0,0 +1,31 @@
+; RUN: opt -S -dxil-op-lower -mtriple=dxil-pc-shadermodel6.3-library %s |
FileCheck %s
+
+; Make sure dxil operation function calls for countbits are generated for all
integer types.
+
+; Function Attrs: nounwind
+define noundef i16 @test_countbits_short(i16 noundef %a) {
+entry:
+; CHECK:call i16 @dx.op.unary.i16(i32 31, i16 %{{.*}})
+ %elt.ctpop = call i16 @llvm.ctpop.i16(i16 %a)
+ ret i16 %elt.ctpop
+}
+
+; Function Attrs: nounwind
----------------
farzonl wrote:
It doesn't look like this test uses the `Function Attrs`. If we don't then
please remove them.
https://github.com/llvm/llvm-project/pull/108121
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