1 files changed, 43 insertions, 0 deletions
diff --git a/test/CodeGen/AArch64/arm64-popcnt.ll b/test/CodeGen/AArch64/arm64-popcnt.ll
new file mode 100644
index 0000000..2afade2
--- /dev/null
+++ b/test/CodeGen/AArch64/arm64-popcnt.ll
@@ -0,0 +1,43 @@
+; RUN: llc < %s -march=arm64 -aarch64-neon-syntax=apple | FileCheck %s
+
+define i32 @cnt32_advsimd(i32 %x) nounwind readnone {
+  %cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
+  ret i32 %cnt
+; CHECK: fmov	s0, w0
+; CHECK: cnt.8b	v0, v0
+; CHECK: uaddlv.8b	h0, v0
+; CHECK: fmov w0, s0
+; CHECK: ret
+}
+
+define i64 @cnt64_advsimd(i64 %x) nounwind readnone {
+  %cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
+  ret i64 %cnt
+; CHECK: fmov	d0, x0
+; CHECK: cnt.8b	v0, v0
+; CHECK: uaddlv.8b	h0, v0
+; CHECK: fmov	w0, s0
+; CHECK: ret
+}
+
+; Do not use AdvSIMD when -mno-implicit-float is specified.
+; rdar://9473858
+
+define i32 @cnt32(i32 %x) nounwind readnone noimplicitfloat {
+  %cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
+  ret i32 %cnt
+; CHECK-LABEL: cnt32:
+; CHECK-NOT 16b
+; CHECK: ret
+}
+
+define i64 @cnt64(i64 %x) nounwind readnone noimplicitfloat {
+  %cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
+  ret i64 %cnt
+; CHECK-LABEL: cnt64:
+; CHECK-NOT 16b
+; CHECK: ret
+}
+
+declare i32 @llvm.ctpop.i32(i32) nounwind readnone
+declare i64 @llvm.ctpop.i64(i64) nounwind readnone