From b193fe943f56db304b0fca48a5478afa9deac68c Mon Sep 17 00:00:00 2001
From: Sanjay Patel <spatel@rotateright.com>
Date: Mon, 2 May 2016 15:06:55 +0000
Subject: [PATCH] [InstCombine] regenerate checks

llvm-svn: 268239
---
 llvm/test/Transforms/InstCombine/div-shift.ll | 76 +++++++++++++++------------
 1 file changed, 43 insertions(+), 33 deletions(-)

diff --git a/llvm/test/Transforms/InstCombine/div-shift.ll b/llvm/test/Transforms/InstCombine/div-shift.ll
index 3350f19..0532106 100644
--- a/llvm/test/Transforms/InstCombine/div-shift.ll
+++ b/llvm/test/Transforms/InstCombine/div-shift.ll
@@ -1,10 +1,15 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt < %s -instcombine -S | FileCheck %s
 
-define i32 @t1(i16 zeroext %x, i32 %y) nounwind {
+define i32 @t1(i16 zeroext %x, i32 %y) {
+; CHECK-LABEL: @t1(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:    [[CONV:%.*]] = zext i16 %x to i32
+; CHECK-NEXT:    [[TMP0:%.*]] = add i32 %y, 1
+; CHECK-NEXT:    [[D:%.*]] = lshr i32 [[CONV]], [[TMP0]]
+; CHECK-NEXT:    ret i32 [[D]]
+;
 entry:
-; CHECK: t1
-; CHECK-NOT: sdiv
-; CHECK: lshr i32 %conv
   %conv = zext i16 %x to i32
   %s = shl i32 2, %y
   %d = sdiv i32 %conv, %s
@@ -12,10 +17,12 @@ entry:
 }
 
 ; rdar://11721329
-define i64 @t2(i64 %x, i32 %y) nounwind  {
-; CHECK: t2
-; CHECK-NOT: udiv
-; CHECK: lshr i64 %x
+define i64 @t2(i64 %x, i32 %y) {
+; CHECK-LABEL: @t2(
+; CHECK-NEXT:    [[TMP1:%.*]] = zext i32 %y to i64
+; CHECK-NEXT:    [[TMP2:%.*]] = lshr i64 %x, [[TMP1]]
+; CHECK-NEXT:    ret i64 [[TMP2]]
+;
   %1 = shl i32 1, %y
   %2 = zext i32 %1 to i64
   %3 = udiv i64 %x, %2
@@ -23,26 +30,26 @@ define i64 @t2(i64 %x, i32 %y) nounwind  {
 }
 
 ; PR13250
-define i64 @t3(i64 %x, i32 %y) nounwind  {
-; CHECK: t3
-; CHECK-NOT: udiv
-; CHECK-NEXT: %1 = add i32 %y, 2
-; CHECK-NEXT: %2 = zext i32 %1 to i64
-; CHECK-NEXT: %3 = lshr i64 %x, %2
-; CHECK-NEXT: ret i64 %3
+define i64 @t3(i64 %x, i32 %y) {
+; CHECK-LABEL: @t3(
+; CHECK-NEXT:    [[TMP1:%.*]] = add i32 %y, 2
+; CHECK-NEXT:    [[TMP2:%.*]] = zext i32 [[TMP1]] to i64
+; CHECK-NEXT:    [[TMP3:%.*]] = lshr i64 %x, [[TMP2]]
+; CHECK-NEXT:    ret i64 [[TMP3]]
+;
   %1 = shl i32 4, %y
   %2 = zext i32 %1 to i64
   %3 = udiv i64 %x, %2
   ret i64 %3
 }
 
-define i32 @t4(i32 %x, i32 %y) nounwind {
-; CHECK: t4
-; CHECK-NOT: udiv
-; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 %y, 5
-; CHECK-NEXT: [[SEL:%.*]] = select i1 [[CMP]], i32 5, i32 %y
-; CHECK-NEXT: [[SHR:%.*]] = lshr i32 %x, [[SEL]]
-; CHECK-NEXT: ret i32 [[SHR]]
+define i32 @t4(i32 %x, i32 %y) {
+; CHECK-LABEL: @t4(
+; CHECK-NEXT:    [[TMP1:%.*]] = icmp ult i32 %y, 5
+; CHECK-NEXT:    [[DOTV:%.*]] = select i1 [[TMP1]], i32 5, i32 %y
+; CHECK-NEXT:    [[TMP2:%.*]] = lshr i32 %x, [[DOTV]]
+; CHECK-NEXT:    ret i32 [[TMP2]]
+;
   %1 = shl i32 1, %y
   %2 = icmp ult i32 %1, 32
   %3 = select i1 %2, i32 32, i32 %1
@@ -50,13 +57,13 @@ define i32 @t4(i32 %x, i32 %y) nounwind {
   ret i32 %4
 }
 
-define i32 @t5(i1 %x, i1 %y, i32 %V) nounwind {
-; CHECK: t5
-; CHECK-NOT: udiv
-; CHECK-NEXT: [[SEL1:%.*]] = select i1 %x, i32 5, i32 6
-; CHECK-NEXT: [[LSHR:%.*]] = lshr i32 %V, [[SEL1]]
-; CHECK-NEXT: [[SEL2:%.*]] = select i1 %y, i32 [[LSHR]], i32 0
-; CHECK-NEXT: ret i32 [[SEL2]]
+define i32 @t5(i1 %x, i1 %y, i32 %V) {
+; CHECK-LABEL: @t5(
+; CHECK-NEXT:    [[DOTV:%.*]] = select i1 %x, i32 5, i32 6
+; CHECK-NEXT:    [[TMP1:%.*]] = lshr i32 %V, [[DOTV]]
+; CHECK-NEXT:    [[TMP2:%.*]] = select i1 %y, i32 [[TMP1]], i32 0
+; CHECK-NEXT:    ret i32 [[TMP2]]
+;
   %1 = shl i32 1, %V
   %2 = select i1 %x, i32 32, i32 64
   %3 = select i1 %y, i32 %2, i32 %1
@@ -64,10 +71,13 @@ define i32 @t5(i1 %x, i1 %y, i32 %V) nounwind {
   ret i32 %4
 }
 
-define i32 @t6(i32 %x, i32 %z) nounwind{
-; CHECK: t6
-; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 %x, 0
-; CHECK-NOT: udiv i32 %z, %x
+define i32 @t6(i32 %x, i32 %z) {
+; CHECK-LABEL: @t6(
+; CHECK-NEXT:    [[X_IS_ZERO:%.*]] = icmp eq i32 %x, 0
+; CHECK-NEXT:    [[DIVISOR:%.*]] = select i1 [[X_IS_ZERO]], i32 1, i32 %x
+; CHECK-NEXT:    [[Y:%.*]] = udiv i32 %z, [[DIVISOR]]
+; CHECK-NEXT:    ret i32 [[Y]]
+;
   %x_is_zero = icmp eq i32 %x, 0
   %divisor = select i1 %x_is_zero, i32 1, i32 %x
   %y = udiv i32 %z, %divisor
-- 
2.7.4