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comparison test/Analysis/BasicAA/memset_pattern.ll @ 0:95c75e76d11b LLVM3.4

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LLVM 3.4
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Thu, 12 Dec 2013 13:56:28 +0900
parents
children afa8332a0e37
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-1:000000000000 0:95c75e76d11b
1 ; RUN: opt -S -basicaa -gvn < %s | FileCheck %s
2 ; PR10872
3 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4 target triple = "x86_64-apple-macosx10.7"
5
6 @z = internal global i32 0, align 4
7 @y = internal global i32 0, align 4
8 @x = internal constant i32 0, align 4
9
10 ; CHECK: @test
11 define i32 @test() nounwind uwtable ssp {
12 entry:
13 store i32 1, i32* @z
14 tail call void @memset_pattern16(i8* bitcast (i32* @y to i8*), i8* bitcast (i32* @x to i8*), i64 4) nounwind
15 ; CHECK-NOT: load
16 %l = load i32* @z
17 ; CHECK: ret i32 1
18 ret i32 %l
19 }
20
21 declare void @memset_pattern16(i8*, i8*, i64)