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
diff --git a/test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll b/test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll
new file mode 100644
index 0000000..f90d030
--- /dev/null
+++ b/test/Transforms/LoopStrengthReduce/preserve-gep-loop-variant.ll
@@ -0,0 +1,42 @@
+; RUN: opt < %s -loop-reduce -S | FileCheck %s
+; CHECK-NOT: {{inttoptr|ptrtoint}}
+; CHECK: scevgep
+; CHECK-NOT: {{inttoptr|ptrtoint}}
+target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n32:64"
+
+; Indvars shouldn't need inttoptr/ptrtoint to expand an address here.
+
+define void @foo(i8* %p) nounwind {
+entry:
+ br i1 true, label %bb.nph, label %for.end
+
+for.cond:
+ %phitmp = icmp slt i64 %inc, 20
+ br i1 %phitmp, label %for.body, label %for.cond.for.end_crit_edge
+
+for.cond.for.end_crit_edge:
+ br label %for.end
+
+bb.nph:
+ br label %for.body
+
+for.body:
+ %storemerge1 = phi i64 [ %inc, %for.cond ], [ 0, %bb.nph ]
+ %call = tail call i64 @bar() nounwind
+ %call2 = tail call i64 @car() nounwind
+ %conv = trunc i64 %call2 to i8
+ %conv3 = sext i8 %conv to i64
+ %add = add nsw i64 %call, %storemerge1
+ %add4 = add nsw i64 %add, %conv3
+ %arrayidx = getelementptr inbounds i8* %p, i64 %add4
+ store i8 0, i8* %arrayidx
+ %inc = add nsw i64 %storemerge1, 1
+ br label %for.cond
+
+for.end:
+ ret void
+}
+
+declare i64 @bar()
+
+declare i64 @car()