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annotate gcc/testsuite/gcc.dg/fold-eqandshift-1.c @ 145:1830386684a0

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gcc-9.2.0
author anatofuz
date Thu, 13 Feb 2020 11:34:05 +0900
parents 04ced10e8804
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
111
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1 /* PR middle-end/21137 */
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2 /* { dg-do compile } */
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3 /* { dg-options "-O2 -fdump-tree-original" } */
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4 extern void foo();
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5
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6 void test1(int a)
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7 {
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8 if ((a >> 3) & 1)
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9 foo ();
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10 }
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11
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12 void test2(int b)
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13 {
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14 if ((b >> 3) & 4)
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15 foo ();
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16 }
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17
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18 int test3(int c)
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19 {
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20 return (c >> 3) & 1;
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21 }
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22
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23 int test4(int d)
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24 {
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25 return (d >> 3) & 4;
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26 }
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27
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28 #if __INT_MAX__ == 32767
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29 #define INT_BITS 16
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30 #elif __INT_MAX__ == 2147483647
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31 #define INT_BITS 32
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32 #elif __INT_MAX__ == 9223372036854775807
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33 #define INT_BITS 64
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34 #else
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35 #error Please add support for your target here.
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36 #endif
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37
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38 void test5(int e)
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39 {
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40 if ((e >> (INT_BITS - 1)) & 64)
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41 foo();
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42 }
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43
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44 void test6(unsigned int f)
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45 {
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46 if ((f >> (INT_BITS - 1)) & 64)
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47 foo();
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48 }
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49
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50 /* { dg-final { scan-tree-dump-times "\\(a \& 8\\) != 0" 1 "original" } } */
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51 /* { dg-final { scan-tree-dump-times "\\(b \& 32\\) != 0" 1 "original" } } */
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52 /* { dg-final { scan-tree-dump-times "c >> 3 \& 1" 1 "original" } } */
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53 /* { dg-final { scan-tree-dump-times "d >> 3 \& 4" 1 "original" } } */
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54 /* { dg-final { scan-tree-dump-times "e < 0" 1 "original" } } */
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55 /* { dg-final { scan-tree-dump-times "if \\(0\\)" 1 "original" } } */