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