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authorStephen Hines <srhines@google.com>2015-04-01 18:49:24 +0000
committerGerrit Code Review <noreply-gerritcodereview@google.com>2015-04-01 18:49:26 +0000
commit3fa16bd6062e23bcdb82ed4dd965674792e6b761 (patch)
tree9348fc507292f7e8715d22d64ce5a32131b4f875 /test/Transforms/IndVarSimplify/pr22222.ll
parentbeed47390a60f6f0c77532b3d3f76bb47ef49423 (diff)
parentebe69fe11e48d322045d5949c83283927a0d790b (diff)
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Merge "Update aosp/master LLVM for rebase to r230699."
Diffstat (limited to 'test/Transforms/IndVarSimplify/pr22222.ll')
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diff --git a/test/Transforms/IndVarSimplify/pr22222.ll b/test/Transforms/IndVarSimplify/pr22222.ll
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+++ b/test/Transforms/IndVarSimplify/pr22222.ll
@@ -0,0 +1,46 @@
+; RUN: opt -indvars -S < %s | FileCheck %s
+
+@b = common global i32 0, align 4
+@c = common global i32 0, align 4
+@a = common global i32 0, align 4
+
+declare void @abort() #1
+
+; Function Attrs: nounwind ssp uwtable
+define i32 @main() {
+entry:
+ %a.promoted13 = load i32* @a, align 4
+ br label %for.cond1.preheader
+
+for.cond1.preheader: ; preds = %entry, %for.end
+ %or.lcssa14 = phi i32 [ %a.promoted13, %entry ], [ %or.lcssa, %for.end ]
+ %d.010 = phi i32 [ 1, %entry ], [ 0, %for.end ]
+ br label %for.body3
+
+for.body3: ; preds = %for.cond1.preheader, %for.body3
+ %inc12 = phi i32 [ 0, %for.cond1.preheader ], [ %inc, %for.body3 ]
+ %or11 = phi i32 [ %or.lcssa14, %for.cond1.preheader ], [ %or, %for.body3 ]
+; CHECK-NOT: sub nuw i32 %inc12, %d.010
+; CHECK: sub i32 %inc12, %d.010
+ %add = sub i32 %inc12, %d.010
+ %or = or i32 %or11, %add
+ %inc = add i32 %inc12, 1
+ br i1 false, label %for.body3, label %for.end
+
+for.end: ; preds = %for.body3
+ %or.lcssa = phi i32 [ %or, %for.body3 ]
+ br i1 false, label %for.cond1.preheader, label %for.end6
+
+for.end6: ; preds = %for.end
+ %or.lcssa.lcssa = phi i32 [ %or.lcssa, %for.end ]
+ store i32 %or.lcssa.lcssa, i32* @a, align 4
+ %cmp7 = icmp eq i32 %or.lcssa.lcssa, -1
+ br i1 %cmp7, label %if.end, label %if.then
+
+if.then: ; preds = %for.end6
+ tail call void @abort() #2
+ unreachable
+
+if.end: ; preds = %for.end6
+ ret i32 0
+}