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120
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1 ; RUN: llc -march=hexagon < %s | FileCheck %s
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2
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3 target datalayout = "e-m:e-p:32:32:32-a:0-n16:32-i64:64:64-i32:32:32-i16:16:16-i1:8:8-f32:32:32-f64:64:64-v32:32:32-v64:64:64-v512:512:512-v1024:1024:1024-v2048:2048:2048"
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4 target triple = "hexagon"
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5
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6 ; Generate the inline restore for single register pair for functions
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7 ; with "optsize" attribute.
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8
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9 ; CHECK-LABEL: fred_os
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10 ; CHECK-DAG: memd{{.*}} = r17:16
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11 ; CHECK-DAG: r17:16 = memd{{.*}}
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12 ; CHECK-DAG: deallocframe
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13 ; CHECK-NOT: call __restore
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14
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15 define i32 @fred_os(i32 %x) #0 {
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16 entry:
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17 %call = tail call i32 @foo(i32 %x) #2
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18 %call1 = tail call i32 @bar(i32 %x, i32 %call) #2
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19 ret i32 %call1
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20 }
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21
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22 ; Generate the restoring call for single register pair for functions
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23 ; with "minsize" attribute.
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24
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25 ; CHECK-LABEL: fred_oz
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26 ; CHECK-DAG: memd{{.*}} = r17:16
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27 ; CHECK-NOT: r17:16 = memd{{.*}}
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28 ; CHECK-DAG: call __restore
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29
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30 define i32 @fred_oz(i32 %x) #1 {
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31 entry:
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32 %call = tail call i32 @foo(i32 %x) #2
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33 %call1 = tail call i32 @bar(i32 %x, i32 %call) #2
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34 ret i32 %call1
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35 }
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36
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37 declare i32 @foo(i32) #2
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38 declare i32 @bar(i32, i32) #2
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39
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40 attributes #0 = { nounwind optsize "disable-tail-calls"="false" }
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41 attributes #1 = { nounwind minsize "disable-tail-calls"="false" }
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42 attributes #2 = { nounwind optsize }
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