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annotate test/CodeGen/Mips/eh-dwarf-cfa.ll @ 0:95c75e76d11b

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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 54457678186b
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95c75e76d11b LLVM 3.4
Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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1 ; RUN: llc -march=mipsel -mcpu=mips32 < %s | FileCheck %s
95c75e76d11b LLVM 3.4
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2 ; RUN: llc -march=mips64el -mcpu=mips64 < %s | \
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3 ; RUN: FileCheck %s -check-prefix=CHECK-MIPS64
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4
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5 declare i8* @llvm.eh.dwarf.cfa(i32) nounwind
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6 declare i8* @llvm.frameaddress(i32) nounwind readnone
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7
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8 define i8* @f1() nounwind {
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9 entry:
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10 %x = alloca [32 x i8], align 1
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11 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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12 ret i8* %0
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13
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14 ; CHECK: addiu $sp, $sp, -32
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15 ; CHECK: addiu $2, $sp, 32
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16 }
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17
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18
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19 define i8* @f2() nounwind {
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20 entry:
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21 %x = alloca [65536 x i8], align 1
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22 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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23 ret i8* %0
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24
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25 ; check stack size (65536 + 8)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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26 ; CHECK: lui $[[R0:[a-z0-9]+]], 65535
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27 ; CHECK: addiu $[[R0]], $[[R0]], -8
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28 ; CHECK: addu $sp, $sp, $[[R0]]
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29
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30 ; check return value ($sp + stack size)
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31 ; CHECK: lui $[[R1:[a-z0-9]+]], 1
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32 ; CHECK: addu $[[R1]], $sp, $[[R1]]
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33 ; CHECK: addiu $2, $[[R1]], 8
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34 }
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35
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36
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37 define i32 @f3() nounwind {
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38 entry:
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39 %x = alloca [32 x i8], align 1
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40 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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41 %1 = ptrtoint i8* %0 to i32
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42 %2 = call i8* @llvm.frameaddress(i32 0)
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43 %3 = ptrtoint i8* %2 to i32
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44 %add = add i32 %1, %3
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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45 ret i32 %add
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46
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47 ; CHECK: addiu $sp, $sp, -40
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48
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49 ; check return value ($fp + stack size + $fp)
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50 ; CHECK: addiu $[[R0:[a-z0-9]+]], $fp, 40
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51 ; CHECK: addu $2, $[[R0]], $fp
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52 }
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53
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54
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55 define i8* @f4() nounwind {
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56 entry:
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57 %x = alloca [32 x i8], align 1
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58 %0 = call i8* @llvm.eh.dwarf.cfa(i32 0)
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Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
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59 ret i8* %0
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60
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61 ; CHECK-MIPS64: daddiu $sp, $sp, -32
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62 ; CHECK-MIPS64: daddiu $2, $sp, 32
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63 }