From ff921bc617fc6afd3c5ccecffdff8e2c0721cc92 Mon Sep 17 00:00:00 2001
From: Justin Lebar <jlebar@google.com>
Date: Sat, 4 Feb 2017 01:54:56 +0000
Subject: [PATCH] [NVPTX] Add tests that invariant vector loads get lowered to
 ld.global.nc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294082 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/CodeGen/NVPTX/ldg-invariant.ll | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/test/CodeGen/NVPTX/ldg-invariant.ll b/test/CodeGen/NVPTX/ldg-invariant.ll
index 40dad1f1769..311bea6f416 100644
--- a/test/CodeGen/NVPTX/ldg-invariant.ll
+++ b/test/CodeGen/NVPTX/ldg-invariant.ll
@@ -10,6 +10,30 @@ define i32 @ld_global(i32 addrspace(1)* %ptr) {
   ret i32 %a
 }
 
+; CHECK-LABEL: @ld_global_v2i32
+define i32 @ld_global_v2i32(<2 x i32> addrspace(1)* %ptr) {
+; CHECK: ld.global.nc.v2.{{[a-z]}}32
+  %a = load <2 x i32>, <2 x i32> addrspace(1)* %ptr, !invariant.load !0
+  %v1 = extractelement <2 x i32> %a, i32 0
+  %v2 = extractelement <2 x i32> %a, i32 1
+  %sum = add i32 %v1, %v2
+  ret i32 %sum
+}
+
+; CHECK-LABEL: @ld_global_v4i32
+define i32 @ld_global_v4i32(<4 x i32> addrspace(1)* %ptr) {
+; CHECK: ld.global.nc.v4.{{[a-z]}}32
+  %a = load <4 x i32>, <4 x i32> addrspace(1)* %ptr, !invariant.load !0
+  %v1 = extractelement <4 x i32> %a, i32 0
+  %v2 = extractelement <4 x i32> %a, i32 1
+  %v3 = extractelement <4 x i32> %a, i32 2
+  %v4 = extractelement <4 x i32> %a, i32 3
+  %sum1 = add i32 %v1, %v2
+  %sum2 = add i32 %v3, %v4
+  %sum3 = add i32 %sum1, %sum2
+  ret i32 %sum3
+}
+
 ; CHECK-LABEL: @ld_not_invariant
 define i32 @ld_not_invariant(i32 addrspace(1)* %ptr) {
 ; CHECK: ld.global.{{[a-z]}}32
-- 
2.50.1