From 221255160af3e0689733e41cc13e93b90929cfb4 Mon Sep 17 00:00:00 2001
From: Sanjoy Das <sanjoy@playingwithpointers.com>
Date: Thu, 22 Oct 2015 19:57:41 +0000
Subject: [PATCH] [SCEV] Remove a test case added in r249168

The test case wasn't testing what it was commented to be testing; and
when I tried to fix the test I noticed that SCEV does not support the
simplification that the test was supposed to test.

This change removes the test case to avoid confusion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@251053 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../IndVarSimplify/eliminate-comparison.ll    | 44 +++----------------
 1 file changed, 7 insertions(+), 37 deletions(-)

diff --git a/test/Transforms/IndVarSimplify/eliminate-comparison.ll b/test/Transforms/IndVarSimplify/eliminate-comparison.ll
index eb60bacc8a6..612f01e3cad 100644
--- a/test/Transforms/IndVarSimplify/eliminate-comparison.ll
+++ b/test/Transforms/IndVarSimplify/eliminate-comparison.ll
@@ -447,38 +447,8 @@ define void @func_20(i32* %length.ptr) {
   ret void
 }
 
-define void @func_21(i32* %length.ptr, i32 %init) {
-; Like @func_19, but it is no longer possible to prove %iv's start
-; value is positive without doing some control flow analysis.
-
+define void @func_21(i32* %length.ptr) {
 ; CHECK-LABEL: @func_21(
- entry:
-  %length = load i32, i32* %length.ptr, !range !0
-  %length.is.nonzero = icmp ne i32 %length, 0
-  %init.is.positive = icmp sgt i32 %init, 0
-  %entry.cond = and i1 %length.is.nonzero, %init.is.positive
-  br i1 %length.is.nonzero, label %loop, label %leave
-
- loop:
-; CHECK: loop:
-  %iv = phi i32 [ 0, %entry ], [ %iv.inc, %be ]
-  %iv.inc = add i32 %iv, 1
-  %range.check = icmp ult i32 %iv, %length
-  br i1 %range.check, label %be, label %leave
-; CHECK:   br i1 true, label %be, label %leave.loopexit
-; CHECK: be:
-
- be:
-  call void @side_effect()
-  %be.cond = icmp slt i32 %iv.inc, %length
-  br i1 %be.cond, label %loop, label %leave
-
- leave:
-  ret void
-}
-
-define void @func_22(i32* %length.ptr) {
-; CHECK-LABEL: @func_22(
 
 ; This checks that the backedge condition, (I + 1) < Length - 1 implies
 ; (I + 1) < Length
@@ -506,8 +476,8 @@ define void @func_22(i32* %length.ptr) {
   ret void
 }
 
-define void @func_23(i32* %length.ptr) {
-; CHECK-LABEL: @func_23(
+define void @func_22(i32* %length.ptr) {
+; CHECK-LABEL: @func_22(
 
 ; This checks that the backedge condition, (I + 1) < Length - 1 implies
 ; (I + 1) < Length
@@ -535,8 +505,8 @@ define void @func_23(i32* %length.ptr) {
   ret void
 }
 
-define void @func_24(i32* %length.ptr) {
-; CHECK-LABEL: @func_24(
+define void @func_23(i32* %length.ptr) {
+; CHECK-LABEL: @func_23(
  entry:
   %length = load i32, i32* %length.ptr, !range !0
   %entry.cond = icmp ult i32 4, %length
@@ -560,8 +530,8 @@ define void @func_24(i32* %length.ptr) {
   ret void
 }
 
-define void @func_25(i32* %init.ptr) {
-; CHECK-LABEL: @func_25(
+define void @func_24(i32* %init.ptr) {
+; CHECK-LABEL: @func_24(
  entry:
   %init = load i32, i32* %init.ptr, !range !0
   %entry.cond = icmp ugt i32 %init, 4
-- 
2.34.1