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annotate test/CodeGen/SystemZ/unaligned-01.ll @ 95:afa8332a0e37

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LLVM 3.8
author Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
date Tue, 13 Oct 2015 17:48:58 +0900
parents 95c75e76d11b
children 803732b1fca8
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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1 ; Check that unaligned accesses are allowed in general. We check the
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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2 ; few exceptions (like CRL) in their respective test files.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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3 ;
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4 ; FIXME: -combiner-alias-analysis (the default for SystemZ) stops
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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5 ; f1 from being optimized.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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6 ; RUN: llc < %s -mtriple=s390x-linux-gnu -combiner-alias-analysis=false \
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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7 ; RUN: | FileCheck %s
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8
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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9 ; Check that these four byte stores become a single word store.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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10 define void @f1(i8 *%ptr) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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11 ; CHECK: f1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ; CHECK: iilf [[REG:%r[0-5]]], 66051
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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13 ; CHECK: st [[REG]], 0(%r2)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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14 ; CHECK: br %r14
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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15 %off1 = getelementptr i8, i8 *%ptr, i64 1
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parents: 0
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16 %off2 = getelementptr i8, i8 *%ptr, i64 2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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17 %off3 = getelementptr i8, i8 *%ptr, i64 3
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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18 store i8 0, i8 *%ptr
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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19 store i8 1, i8 *%off1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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20 store i8 2, i8 *%off2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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21 store i8 3, i8 *%off3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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22 ret void
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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23 }
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parents:
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24
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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25 ; Check that unaligned 2-byte accesses are allowed.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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26 define i16 @f2(i16 *%src, i16 *%dst) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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27 ; CHECK-LABEL: f2:
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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28 ; CHECK: lh %r2, 0(%r2)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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29 ; CHECK: sth %r2, 0(%r3)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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30 ; CHECK: br %r14
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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31 %val = load i16 , i16 *%src, align 1
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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32 store i16 %val, i16 *%dst, align 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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33 ret i16 %val
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34 }
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parents:
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35
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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36 ; Check that unaligned 4-byte accesses are allowed.
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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37 define i32 @f3(i32 *%src1, i32 *%src2, i32 *%dst) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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38 ; CHECK-LABEL: f3:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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39 ; CHECK: l %r2, 0(%r2)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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40 ; CHECK: s %r2, 0(%r3)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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41 ; CHECK: st %r2, 0(%r4)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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42 ; CHECK: br %r14
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afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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43 %val1 = load i32 , i32 *%src1, align 1
afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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44 %val2 = load i32 , i32 *%src2, align 2
0
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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45 %sub = sub i32 %val1, %val2
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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46 store i32 %sub, i32 *%dst, align 1
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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47 ret i32 %sub
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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48 }
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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49
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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50 ; Check that unaligned 8-byte accesses are allowed.
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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51 define i64 @f4(i64 *%src1, i64 *%src2, i64 *%dst) {
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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52 ; CHECK-LABEL: f4:
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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53 ; CHECK: lg %r2, 0(%r2)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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54 ; CHECK: sg %r2, 0(%r3)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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55 ; CHECK: stg %r2, 0(%r4)
95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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56 ; CHECK: br %r14
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afa8332a0e37 LLVM 3.8
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
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57 %val1 = load i64 , i64 *%src1, align 1
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents: 0
diff changeset
58 %val2 = load i64 , i64 *%src2, align 2
0
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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59 %sub = sub i64 %val1, %val2
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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60 store i64 %sub, i64 *%dst, align 4
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
parents:
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61 ret i64 %sub
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parents:
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62 }