From 638b6131010e713c3b2adb21d77b42124ea5705b Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Mon, 15 Aug 2016 21:37:24 +0000
Subject: [PATCH] [InstCombine] add tests for missing vector icmp folds

llvm-svn: 278747
---
 .../Transforms/InstCombine/2008-01-29-AddICmp.ll   | 34 ++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/llvm/test/Transforms/InstCombine/2008-01-29-AddICmp.ll b/llvm/test/Transforms/InstCombine/2008-01-29-AddICmp.ll
index d175762..0f0b5c3 100644
--- a/llvm/test/Transforms/InstCombine/2008-01-29-AddICmp.ll
+++ b/llvm/test/Transforms/InstCombine/2008-01-29-AddICmp.ll
@@ -2,6 +2,7 @@
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
 ; PR1949
+; FIXME: Vectors should fold the same way for all tests.
 
 define i1 @test1(i32 %a) {
 ; CHECK-LABEL: @test1(
@@ -13,6 +14,17 @@ define i1 @test1(i32 %a) {
   ret i1 %c
 }
 
+define <2 x i1> @test1vec(<2 x i32> %a) {
+; CHECK-LABEL: @test1vec(
+; CHECK-NEXT:    [[B:%.*]] = add <2 x i32> %a, <i32 4, i32 4>
+; CHECK-NEXT:    [[C:%.*]] = icmp ult <2 x i32> [[B]], <i32 4, i32 4>
+; CHECK-NEXT:    ret <2 x i1> [[C]]
+;
+  %b = add <2 x i32> %a, <i32 4, i32 4>
+  %c = icmp ult <2 x i32> %b, <i32 4, i32 4>
+  ret <2 x i1> %c
+}
+
 define i1 @test2(i32 %a) {
 ; CHECK-LABEL: @test2(
 ; CHECK-NEXT:    [[C:%.*]] = icmp ult i32 %a, 4
@@ -23,6 +35,17 @@ define i1 @test2(i32 %a) {
   ret i1 %c
 }
 
+define <2 x i1> @test2vec(<2 x i32> %a) {
+; CHECK-LABEL: @test2vec(
+; CHECK-NEXT:    [[B:%.*]] = add <2 x i32> %a, <i32 -4, i32 -4>
+; CHECK-NEXT:    [[C:%.*]] = icmp ugt <2 x i32> [[B]], <i32 -5, i32 -5>
+; CHECK-NEXT:    ret <2 x i1> [[C]]
+;
+  %b = sub <2 x i32> %a, <i32 4, i32 4>
+  %c = icmp ugt <2 x i32> %b, <i32 -5, i32 -5>
+  ret <2 x i1> %c
+}
+
 define i1 @test3(i32 %a) {
 ; CHECK-LABEL: @test3(
 ; CHECK-NEXT:    [[C:%.*]] = icmp sgt i32 %a, 2147483643
@@ -33,3 +56,14 @@ define i1 @test3(i32 %a) {
   ret i1 %c
 }
 
+define <2 x i1> @test3vec(<2 x i32> %a) {
+; CHECK-LABEL: @test3vec(
+; CHECK-NEXT:    [[B:%.*]] = add <2 x i32> %a, <i32 4, i32 4>
+; CHECK-NEXT:    [[C:%.*]] = icmp slt <2 x i32> [[B]], <i32 -2147483644, i32 -2147483644>
+; CHECK-NEXT:    ret <2 x i1> [[C]]
+;
+  %b = add <2 x i32> %a, <i32 4, i32 4>
+  %c = icmp slt <2 x i32> %b, <i32 2147483652, i32 2147483652>
+  ret <2 x i1> %c
+}
+
-- 
2.7.4