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Diffstat (limited to 'test/Transforms/InstCombine/alias-recursion.ll')
-rw-r--r-- | test/Transforms/InstCombine/alias-recursion.ll | 24 |
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 +} |