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authorStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
committerStephen Hines <srhines@google.com>2015-03-23 12:10:34 -0700
commitebe69fe11e48d322045d5949c83283927a0d790b (patch)
treec92f1907a6b8006628a4b01615f38264d29834ea /test/Transforms/InstCombine/alias-recursion.ll
parentb7d2e72b02a4cb8034f32f8247a2558d2434e121 (diff)
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Update aosp/master LLVM for rebase to r230699.
Change-Id: I2b5be30509658cb8266be782de0ab24f9099f9b9
Diffstat (limited to 'test/Transforms/InstCombine/alias-recursion.ll')
-rw-r--r--test/Transforms/InstCombine/alias-recursion.ll24
1 files changed, 24 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/alias-recursion.ll b/test/Transforms/InstCombine/alias-recursion.ll
new file mode 100644
index 0000000..fa63726
--- /dev/null
+++ b/test/Transforms/InstCombine/alias-recursion.ll
@@ -0,0 +1,24 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-pc-windows-msvc"
+
+%class.A = type { i32 (...)** }
+
+@0 = constant [1 x i8*] zeroinitializer
+
+@vtbl = alias getelementptr inbounds ([1 x i8*]* @0, i32 0, i32 0)
+
+define i32 (%class.A*)* @test() {
+; CHECK-LABEL: test
+entry:
+ br i1 undef, label %for.body, label %for.end
+
+for.body: ; preds = %for.body, %entry
+ br i1 undef, label %for.body, label %for.end
+
+for.end: ; preds = %for.body, %entry
+ %A = phi i32 (%class.A*)** [ bitcast (i8** @vtbl to i32 (%class.A*)**), %for.body ], [ null, %entry ]
+ %B = load i32 (%class.A*)** %A
+ ret i32 (%class.A*)* %B
+}