From 0c0a3effdeb8d90b314a48f6306ce7dbd05b6255 Mon Sep 17 00:00:00 2001
From: Andrew Trick <atrick@apple.com>
Date: Thu, 22 Mar 2012 17:10:07 +0000
Subject: [PATCH] Convert -indvars tests that rely on SCEV expansion to
 -loop-reduce tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153259 91177308-0d34-0410-b5e6-96231b3b80d8
---
 .../addrec-gep.ll                                    | 12 ++++++++----
 .../preserve-gep-loop-variant.ll                     |  2 +-
 2 files changed, 9 insertions(+), 5 deletions(-)
 rename test/Transforms/{IndVarSimplify => LoopStrengthReduce}/addrec-gep.ll (89%)
 rename test/Transforms/{IndVarSimplify => LoopStrengthReduce}/preserve-gep-loop-variant.ll (94%)

diff --git a/test/Transforms/IndVarSimplify/addrec-gep.ll b/test/Transforms/LoopStrengthReduce/addrec-gep.ll
similarity index 89%
rename from test/Transforms/IndVarSimplify/addrec-gep.ll
rename to test/Transforms/LoopStrengthReduce/addrec-gep.ll
index b62d093960c..3e4e369657b 100644
--- a/test/Transforms/IndVarSimplify/addrec-gep.ll
+++ b/test/Transforms/LoopStrengthReduce/addrec-gep.ll
@@ -1,13 +1,17 @@
-; RUN: opt < %s -indvars -S -enable-iv-rewrite | FileCheck %s
-; CHECK: getelementptr
-; CHECK: mul {{.*}}, 37
-; CHECK: add {{.*}}, 5203
+; RUN: opt < %s -loop-reduce -S | FileCheck %s
+; CHECK: bb1:
+; CHECK: load double* [[IV:%[^,]+]]
+; CHECK: store double {{.*}}, double* [[IV]]
+; CHECK: getelementptr double*
 ; CHECK-NOT: cast
+; CHECK: br {{.*}} label %bb1
 
 ; This test tests several things. The load and store should use the
 ; same address instead of having it computed twice, and SCEVExpander should
 ; be able to reconstruct the full getelementptr, despite it having a few
 ; obstacles set in its way.
+; We only check that the inner loop (bb1-bb2) is "reduced" because LSR
+; currently only operates on inner loops.
 
 target datalayout = "e-p:64:64:64-n32:64"
 
diff --git a/test/Transforms/IndVarSimplify/preserve-gep-loop-variant.ll b/test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll
similarity index 94%
rename from test/Transforms/IndVarSimplify/preserve-gep-loop-variant.ll
rename to test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll
index 251d34ec383..f90d0308005 100644
--- a/test/Transforms/IndVarSimplify/preserve-gep-loop-variant.ll
+++ b/test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll
@@ -1,4 +1,4 @@
-; RUN: opt < %s -indvars -S -enable-iv-rewrite | FileCheck %s
+; RUN: opt < %s -loop-reduce -S | FileCheck %s
 ; CHECK-NOT: {{inttoptr|ptrtoint}}
 ; CHECK: scevgep
 ; CHECK-NOT: {{inttoptr|ptrtoint}}