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7a90a95ac2
Following https://reviews.llvm.org/D82607. Reviewed By: ychen Differential Revision: https://reviews.llvm.org/D82683
25 lines
852 B
LLVM
25 lines
852 B
LLVM
; RUN: opt -S -basic-aa -gvn < %s | FileCheck %s
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target datalayout = "e-m:o-p:32:32-f64:32:64-f80:128-n8:16:32-S128"
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target triple = "i386-apple-macosx10.6.0"
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; We incorrectly returned noalias in the example below for "tmp5" and
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; "tmp12" returning i32 32, since basicaa converted the offsets to 64b
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; and missed the wrap-around
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define i32 @foo(i8* %buffer) {
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entry:
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%tmp2 = getelementptr i8, i8* %buffer, i32 -2071408432
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%tmp3 = bitcast i8* %tmp2 to i32*
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%tmp4 = getelementptr i8, i8* %buffer, i32 128
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%tmp5 = bitcast i8* %tmp4 to i32*
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store i32 32, i32* %tmp5, align 4
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%tmp12 = getelementptr i32, i32* %tmp3, i32 -1629631508
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store i32 28, i32* %tmp12, align 4
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%tmp13 = getelementptr i8, i8* %buffer, i32 128
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%tmp14 = bitcast i8* %tmp13 to i32*
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%tmp2083 = load i32, i32* %tmp14, align 4
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; CHECK: ret i32 28
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ret i32 %tmp2083
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}
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