Mercurial > projects > ldc
annotate tests/mini/asm7.d @ 801:c8d9b30a0dc2
merge
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
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date | Sat, 29 Nov 2008 18:28:32 +0100 |
parents | 4ac97ec7c18e |
children | 12b423e17860 |
rev | line source |
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1 module tangotests.asm7; |
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2 |
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3 // test massive label collisions (runtime uses Loverflow too) |
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4 extern(C) int printf(char*, ...); |
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5 |
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6 void main() |
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7 { |
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8 int a = add(1,2); |
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9 int s = sub(1,2); |
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10 assert(a == 3); |
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11 assert(s == -1); |
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12 } |
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13 |
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14 int add(int a, int b) |
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15 { |
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16 int res; |
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17 version (LLVM_InlineAsm_X86) |
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18 { |
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19 asm |
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20 { |
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21 mov EAX, a; |
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22 add EAX, b; |
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23 jo Loverflow; |
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24 mov res, EAX; |
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25 } |
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26 } |
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27 else version (LLVM_InlineAsm_X86_64) |
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28 { |
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29 asm |
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30 { |
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31 mov EAX, a; |
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32 add EAX, b; |
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33 jo Loverflow; |
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34 mov res, EAX; |
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35 } |
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36 } |
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37 printf("%d\n",res); |
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38 return res; |
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39 Loverflow: |
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40 assert(0, "add overflow"); |
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41 } |
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42 |
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43 int sub(int a, int b) |
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44 { |
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45 int res; |
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46 version (LLVM_InlineAsm_X86) |
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47 { |
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48 asm |
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49 { |
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50 mov EAX, a; |
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51 sub EAX, b; |
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52 jo Loverflow; |
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53 mov res, EAX; |
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54 } |
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55 } |
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56 else version (LLVM_InlineAsm_X86_64) |
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57 { |
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58 asm |
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59 { |
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60 mov EAX, a; |
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61 sub EAX, b; |
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62 jo Loverflow; |
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63 mov res, EAX; |
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64 } |
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65 } |
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66 printf("%d\n",res); |
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67 return res; |
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68 Loverflow: |
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69 assert(0, "sub overflow"); |
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70 int x; |
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71 } |