From 5542bbf250b0dbf0fe74c45330a3cd86dd86ca86 Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Fri, 20 Jan 2023 15:42:08 -0500
Subject: [PATCH] [InstSimplify] add tests for logical-and/or reduction; NFC

issue #60167
---
 .../Transforms/InstSimplify/select-logical.ll | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/llvm/test/Transforms/InstSimplify/select-logical.ll b/llvm/test/Transforms/InstSimplify/select-logical.ll
index 09109eb1c4fe5..4819ade6ae44e 100644
--- a/llvm/test/Transforms/InstSimplify/select-logical.ll
+++ b/llvm/test/Transforms/InstSimplify/select-logical.ll
@@ -585,3 +585,58 @@ define i1 @always_false_same_op(i1 %x) {
   %r = select i1 %x, i1 false, i1 %x
   ret i1 %r
 }
+
+define i1 @or_and_common_op_commute0(i1 %x, i1 %y) {
+; CHECK-LABEL: @or_and_common_op_commute0(
+; CHECK-NEXT:    [[A:%.*]] = select i1 [[X:%.*]], i1 [[Y:%.*]], i1 false
+; CHECK-NEXT:    [[R:%.*]] = select i1 [[A]], i1 true, i1 [[Y]]
+; CHECK-NEXT:    ret i1 [[R]]
+;
+  %a = select i1 %x, i1 %y, i1 false
+  %r = select i1 %a, i1 true, i1 %y
+  ret i1 %r
+}
+
+define <2 x i1> @or_and_common_op_commute1(<2 x i1> %x, <2 x i1> %y) {
+; CHECK-LABEL: @or_and_common_op_commute1(
+; CHECK-NEXT:    [[A:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i1> [[X:%.*]], <2 x i1> zeroinitializer
+; CHECK-NEXT:    [[R:%.*]] = select <2 x i1> [[A]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[Y]]
+; CHECK-NEXT:    ret <2 x i1> [[R]]
+;
+  %a = select <2 x i1> %y, <2 x i1> %x, <2 x i1> zeroinitializer
+  %r = select <2 x i1> %a, <2 x i1> <i1 true, i1 true>, <2 x i1> %y
+  ret <2 x i1> %r
+}
+
+define <2 x i1> @or_and_common_op_commute2(<2 x i1> %x, <2 x i1> %y) {
+; CHECK-LABEL: @or_and_common_op_commute2(
+; CHECK-NEXT:    [[A:%.*]] = select <2 x i1> [[X:%.*]], <2 x i1> [[Y:%.*]], <2 x i1> <i1 false, i1 poison>
+; CHECK-NEXT:    [[R:%.*]] = select <2 x i1> [[Y]], <2 x i1> <i1 true, i1 true>, <2 x i1> [[A]]
+; CHECK-NEXT:    ret <2 x i1> [[R]]
+;
+  %a = select <2 x i1> %x, <2 x i1> %y, <2 x i1> <i1 0, i1 poison>
+  %r = select <2 x i1> %y, <2 x i1> <i1 true, i1 true>, <2 x i1> %a
+  ret <2 x i1> %r
+}
+
+define <2 x i1> @or_and_common_op_commute3(<2 x i1> %x, <2 x i1> %y) {
+; CHECK-LABEL: @or_and_common_op_commute3(
+; CHECK-NEXT:    [[A:%.*]] = select <2 x i1> [[Y:%.*]], <2 x i1> [[X:%.*]], <2 x i1> zeroinitializer
+; CHECK-NEXT:    [[R:%.*]] = select <2 x i1> [[Y]], <2 x i1> <i1 poison, i1 true>, <2 x i1> [[A]]
+; CHECK-NEXT:    ret <2 x i1> [[R]]
+;
+  %a = select <2 x i1> %y, <2 x i1> %x, <2 x i1> zeroinitializer
+  %r = select <2 x i1> %y, <2 x i1> <i1 poison, i1 true>, <2 x i1> %a
+  ret <2 x i1> %r
+}
+
+define i1 @or_and_not_common_op(i1 %x, i1 %y, i1 %z) {
+; CHECK-LABEL: @or_and_not_common_op(
+; CHECK-NEXT:    [[A:%.*]] = select i1 [[X:%.*]], i1 [[Y:%.*]], i1 false
+; CHECK-NEXT:    [[R:%.*]] = select i1 [[A]], i1 true, i1 [[Z:%.*]]
+; CHECK-NEXT:    ret i1 [[R]]
+;
+  %a = select i1 %x, i1 %y, i1 false
+  %r = select i1 %a, i1 true, i1 %z
+  ret i1 %r
+}