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annotate tests/mini/asm7.d @ 979:523bf4f166bc

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Fix some assembler issues: The assembler was miscompiling "add" (specifically, the "add reg/mem, imm" variations). The change that caused this seems to have been made because without it, some "add"s didn't compile at all. This patch reverts the previous change, and makes sure assembler operands are remapped correctly even though the input operands auto-generated due to updating operations aren't explicitly used.
author Frits van Bommel <fvbommel wxs.nl>
date Wed, 18 Feb 2009 21:46:14 +0100
parents 4ac97ec7c18e
children 12b423e17860
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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 }