From ba1d7c682dac830fc69d1c1c2ffb94c75be1433d Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Thu, 15 Sep 2016 17:54:47 +0000
Subject: [PATCH] [InstCombine] add vector tests for icmp (sub nsw)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@281630 91177308-0d34-0410-b5e6-96231b3b80d8
---
 test/Transforms/InstCombine/icmp.ll | 44 +++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/test/Transforms/InstCombine/icmp.ll b/test/Transforms/InstCombine/icmp.ll
index b8bd0c05276..b315c03c1f5 100644
--- a/test/Transforms/InstCombine/icmp.ll
+++ b/test/Transforms/InstCombine/icmp.ll
@@ -2313,6 +2313,17 @@ define i1 @f1(i64 %a, i64 %b) {
   ret i1 %v
 }
 
+define <2 x i1> @f1_vec(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @f1_vec(
+; CHECK-NEXT:    [[T:%.*]] = sub nsw <2 x i64> %a, %b
+; CHECK-NEXT:    [[V:%.*]] = icmp sgt <2 x i64> [[T]], <i64 -1, i64 -1>
+; CHECK-NEXT:    ret <2 x i1> [[V]]
+;
+  %t = sub nsw <2 x i64> %a, %b
+  %v = icmp sgt <2 x i64> %t, <i64 -1, i64 -1>
+  ret <2 x i1> %v
+}
+
 define i1 @f2(i64 %a, i64 %b) {
 ; CHECK-LABEL: @f2(
 ; CHECK-NEXT:    [[V:%.*]] = icmp sgt i64 %a, %b
@@ -2323,6 +2334,17 @@ define i1 @f2(i64 %a, i64 %b) {
   ret i1 %v
 }
 
+define <2 x i1> @f2_vec(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @f2_vec(
+; CHECK-NEXT:    [[T:%.*]] = sub nsw <2 x i64> %a, %b
+; CHECK-NEXT:    [[V:%.*]] = icmp sgt <2 x i64> [[T]], zeroinitializer
+; CHECK-NEXT:    ret <2 x i1> [[V]]
+;
+  %t = sub nsw <2 x i64> %a, %b
+  %v = icmp sgt <2 x i64> %t, zeroinitializer
+  ret <2 x i1> %v
+}
+
 define i1 @f3(i64 %a, i64 %b) {
 ; CHECK-LABEL: @f3(
 ; CHECK-NEXT:    [[V:%.*]] = icmp slt i64 %a, %b
@@ -2333,6 +2355,17 @@ define i1 @f3(i64 %a, i64 %b) {
   ret i1 %v
 }
 
+define <2 x i1> @f3_vec(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @f3_vec(
+; CHECK-NEXT:    [[T:%.*]] = sub nsw <2 x i64> %a, %b
+; CHECK-NEXT:    [[V:%.*]] = icmp slt <2 x i64> [[T]], zeroinitializer
+; CHECK-NEXT:    ret <2 x i1> [[V]]
+;
+  %t = sub nsw <2 x i64> %a, %b
+  %v = icmp slt <2 x i64> %t, zeroinitializer
+  ret <2 x i1> %v
+}
+
 define i1 @f4(i64 %a, i64 %b) {
 ; CHECK-LABEL: @f4(
 ; CHECK-NEXT:    [[V:%.*]] = icmp sle i64 %a, %b
@@ -2343,6 +2376,17 @@ define i1 @f4(i64 %a, i64 %b) {
   ret i1 %v
 }
 
+define <2 x i1> @f4_vec(<2 x i64> %a, <2 x i64> %b) {
+; CHECK-LABEL: @f4_vec(
+; CHECK-NEXT:    [[T:%.*]] = sub nsw <2 x i64> %a, %b
+; CHECK-NEXT:    [[V:%.*]] = icmp slt <2 x i64> [[T]], <i64 1, i64 1>
+; CHECK-NEXT:    ret <2 x i1> [[V]]
+;
+  %t = sub nsw <2 x i64> %a, %b
+  %v = icmp slt <2 x i64> %t, <i64 1, i64 1>
+  ret <2 x i1> %v
+}
+
 define i32 @f5(i8 %a, i8 %b) {
 ; CHECK-LABEL: @f5(
 ; CHECK-NEXT:    [[CONV:%.*]] = zext i8 %a to i32
-- 
2.50.1