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18 lines
756 B
LLVM
18 lines
756 B
LLVM
; RUN: opt -instcombine -S -o - %s | FileCheck %s
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; Test that we don't replace an alias with its aliasee when simplifying GEPs.
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; In this test case the transformation is invalid because it replaces the
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; reference to the symbol "b" (which refers to whichever instance of "b"
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; was chosen by the linker) with a reference to "a" (which refers to the
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; specific instance of "b" in this module).
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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@a = internal global [3 x i8*] zeroinitializer
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@b = linkonce_odr alias [3 x i8*], [3 x i8*]* @a
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define i8** @f() {
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; CHECK: ret i8** getelementptr ([3 x i8*], [3 x i8*]* @b, i64 0, i64 1)
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ret i8** getelementptr ([3 x i8*], [3 x i8*]* @b, i64 0, i64 1)
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}
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