1 files changed, 38 insertions, 0 deletions
diff --git a/test/CodeGen/X86/popcnt.ll b/test/CodeGen/X86/popcnt.ll
new file mode 100644
index 0000000..430214c
--- /dev/null
+++ b/test/CodeGen/X86/popcnt.ll
@@ -0,0 +1,38 @@
+; RUN: llc -march=x86-64 -mattr=+popcnt < %s | FileCheck %s
+
+define i8 @cnt8(i8 %x) nounwind readnone {
+  %cnt = tail call i8 @llvm.ctpop.i8(i8 %x)
+  ret i8 %cnt
+; CHECK: cnt8:
+; CHECK: popcntw
+; CHECK: ret
+}
+
+define i16 @cnt16(i16 %x) nounwind readnone {
+  %cnt = tail call i16 @llvm.ctpop.i16(i16 %x)
+  ret i16 %cnt
+; CHECK: cnt16:
+; CHECK: popcntw
+; CHECK: ret
+}
+
+define i32 @cnt32(i32 %x) nounwind readnone {
+  %cnt = tail call i32 @llvm.ctpop.i32(i32 %x)
+  ret i32 %cnt
+; CHECK: cnt32:
+; CHECK: popcntl
+; CHECK: ret
+}
+
+define i64 @cnt64(i64 %x) nounwind readnone {
+  %cnt = tail call i64 @llvm.ctpop.i64(i64 %x)
+  ret i64 %cnt
+; CHECK: cnt64:
+; CHECK: popcntq
+; CHECK: ret
+}
+
+declare i8 @llvm.ctpop.i8(i8) nounwind readnone
+declare i16 @llvm.ctpop.i16(i16) nounwind readnone
+declare i32 @llvm.ctpop.i32(i32) nounwind readnone
+declare i64 @llvm.ctpop.i64(i64) nounwind readnone