Imported Upstream version 5.18.0.246

Former-commit-id: 0c7ce5b1a7851e13f22acfd379b7f9fb304e4833

external/llvm/test/CodeGen/NVPTX/cttz.ll

@@ -0,0 +1,44 @@
+; RUN: llc < %s -march=nvptx -mcpu=sm_20 -verify-machineinstrs | FileCheck %s
+
+target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v16:16:16-v32:32:32-v64:64:64-v128:128:128-n16:32:64"
+
+declare i16 @llvm.cttz.i16(i16, i1) readnone
+declare i32 @llvm.cttz.i32(i32, i1) readnone
+declare i64 @llvm.cttz.i64(i64, i1) readnone
+
+define i32 @myctpop(i32 %a) {
+; CHECK: popc.b32
+  %val = call i32 @llvm.cttz.i32(i32 %a, i1 false) readnone
+  ret i32 %val
+}
+
+define i16 @myctpop16(i16 %a) {
+; CHECK: popc.b32
+  %val = call i16 @llvm.cttz.i16(i16 %a, i1 false) readnone
+  ret i16 %val
+}
+
+define i64 @myctpop64(i64 %a) {
+; CHECK: popc.b64
+  %val = call i64 @llvm.cttz.i64(i64 %a, i1 false) readnone
+  ret i64 %val
+}
+
+
+define i32 @myctpop_2(i32 %a) {
+; CHECK: popc.b32
+  %val = call i32 @llvm.cttz.i32(i32 %a, i1 true) readnone
+  ret i32 %val
+}
+
+define i16 @myctpop16_2(i16 %a) {
+; CHECK: popc.b32
+  %val = call i16 @llvm.cttz.i16(i16 %a, i1 true) readnone
+  ret i16 %val
+}
+
+define i64 @myctpop64_2(i64 %a) {
+; CHECK: popc.b64
+  %val = call i64 @llvm.cttz.i64(i64 %a, i1 true) readnone
+  ret i64 %val
+}