[llvm] r342082 - [InstCombine] add tests for unsigned add overflow; NFC
Sanjay Patel via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 12 14:13:37 PDT 2018
Author: spatel
Date: Wed Sep 12 14:13:37 2018
New Revision: 342082
URL: http://llvm.org/viewvc/llvm-project?rev=342082&view=rev
Log:
[InstCombine] add tests for unsigned add overflow; NFC
Added:
llvm/trunk/test/Transforms/InstCombine/uaddo.ll
Added: llvm/trunk/test/Transforms/InstCombine/uaddo.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/uaddo.ll?rev=342082&view=auto
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/uaddo.ll (added)
+++ llvm/trunk/test/Transforms/InstCombine/uaddo.ll Wed Sep 12 14:13:37 2018
@@ -0,0 +1,153 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+define i32 @uaddo_commute1(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute1(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[Z:%.*]], i32 [[A]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp ugt i32 %x, %noty
+ %r = select i1 %c, i32 %z, i32 %a
+ ret i32 %r
+}
+
+define <2 x i32> @uaddo_commute2(<2 x i32> %x, <2 x i32> %y, <2 x i32> %z) {
+; CHECK-LABEL: @uaddo_commute2(
+; CHECK-NEXT: [[NOTY:%.*]] = xor <2 x i32> [[Y:%.*]], <i32 -1, i32 -1>
+; CHECK-NEXT: [[A:%.*]] = add <2 x i32> [[Y]], [[X:%.*]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult <2 x i32> [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select <2 x i1> [[C]], <2 x i32> [[Z:%.*]], <2 x i32> [[A]]
+; CHECK-NEXT: ret <2 x i32> [[R]]
+;
+ %noty = xor <2 x i32> %y, <i32 -1, i32 -1>
+ %a = add <2 x i32> %y, %x
+ %c = icmp ugt <2 x i32> %x, %noty
+ %r = select <2 x i1> %c, <2 x i32> %z, <2 x i32> %a
+ ret <2 x i32> %r
+}
+
+define i32 @uaddo_commute3(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute3(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[Z:%.*]], i32 [[A]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp ult i32 %noty, %x
+ %r = select i1 %c, i32 %z, i32 %a
+ ret i32 %r
+}
+
+define i32 @uaddo_commute4(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute4(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[Y]], [[X:%.*]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[Z:%.*]], i32 [[A]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %y, %x
+ %c = icmp ult i32 %noty, %x
+ %r = select i1 %c, i32 %z, i32 %a
+ ret i32 %r
+}
+
+define i32 @uaddo_commute5(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute5(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[A]], i32 [[Z:%.*]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp ugt i32 %x, %noty
+ %r = select i1 %c, i32 %a, i32 %z
+ ret i32 %r
+}
+
+define i32 @uaddo_commute6(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute6(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[Y]], [[X:%.*]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[A]], i32 [[Z:%.*]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %y, %x
+ %c = icmp ugt i32 %x, %noty
+ %r = select i1 %c, i32 %a, i32 %z
+ ret i32 %r
+}
+
+define i32 @uaddo_commute7(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute7(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[A]], i32 [[Z:%.*]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp ult i32 %noty, %x
+ %r = select i1 %c, i32 %a, i32 %z
+ ret i32 %r
+}
+
+define i32 @uaddo_commute8(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_commute8(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[Y]], [[X:%.*]]
+; CHECK-NEXT: [[C:%.*]] = icmp ult i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[A]], i32 [[Z:%.*]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %y, %x
+ %c = icmp ult i32 %noty, %x
+ %r = select i1 %c, i32 %a, i32 %z
+ ret i32 %r
+}
+
+define i32 @uaddo_wrong_pred1(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_wrong_pred1(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ugt i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[Z:%.*]], i32 [[A]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp ult i32 %x, %noty
+ %r = select i1 %c, i32 %z, i32 %a
+ ret i32 %r
+}
+
+define i32 @uaddo_wrong_pred2(i32 %x, i32 %y, i32 %z) {
+; CHECK-LABEL: @uaddo_wrong_pred2(
+; CHECK-NEXT: [[NOTY:%.*]] = xor i32 [[Y:%.*]], -1
+; CHECK-NEXT: [[A:%.*]] = add i32 [[X:%.*]], [[Y]]
+; CHECK-NEXT: [[C:%.*]] = icmp ugt i32 [[NOTY]], [[X]]
+; CHECK-NEXT: [[R:%.*]] = select i1 [[C]], i32 [[A]], i32 [[Z:%.*]]
+; CHECK-NEXT: ret i32 [[R]]
+;
+ %noty = xor i32 %y, -1
+ %a = add i32 %x, %y
+ %c = icmp uge i32 %x, %noty
+ %r = select i1 %c, i32 %z, i32 %a
+ ret i32 %r
+}
+
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