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236
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1 ; RUN: opt %loadPolly -polly-print-optree -disable-output < %s | FileCheck %s -match-full-lines
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221
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2
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3 ; In the code below, %0 is known to be equal to the content of @c (constant 0).
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4 ; Thus, in order to save a scalar dependency, forward-optree replaces
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5 ; the use of %0 in Stmt_lor_end93 by a load from @c by changing the
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6 ; access find from a scalar access to a array accesses.
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236
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7 ; llvm.org/PR48034 describes a crash caused by the mid-processing change.
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221
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8
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9 target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
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10 target triple = "x86_64-unknown-linux-gnu"
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11
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12 @c = external dso_local global i64, align 8
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13
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14 define void @func() {
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15 entry:
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16 br label %lor.end
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17
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18 while.cond.loopexit:
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19 %conv102.le = trunc i64 %xor101 to i8
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20 ret void
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21
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22 lor.end:
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23 %tobool72.not = icmp eq i64 0, 0
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24 br i1 %tobool72.not, label %lor.rhs87, label %lor.end.thread
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25
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26 lor.end.thread:
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27 br label %lor.rhs87
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28
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29 lor.rhs87:
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30 %0 = phi i64 [ 0, %lor.end.thread ], [ 0, %lor.end ]
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31 store i64 %0, i64* @c, align 8
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32 %neg79 = xor i64 %0, -1
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33 br label %lor.end93
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34
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35 lor.end93:
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36 %tobool93 = icmp ne i64 undef, 0
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37 %conv95 = zext i1 %tobool93 to i64
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38 %and100 = and i64 %conv95, undef
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39 %xor101 = xor i64 %and100, %neg79
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40 %xor103 = xor i64 %0, %conv95
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41 br label %while.cond.loopexit
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42 }
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43
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44
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45 ; CHECK: Statistics {
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236
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46 ; CHECK: Reloads: 0
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221
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47 ; CHECK: }
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