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97c1d2fa97
As the testcase shows, a missing unshare_expr caused that the condition was only evaluated once instead of every time when a 'declare variant' was resolved. PR middle-end/121922 gcc/ChangeLog: * omp-general.cc (omp_dynamic_cond): Use 'unshare_expr' for the user condition. libgomp/ChangeLog: * testsuite/libgomp.c-c++-common/declare-variant-1.c: New test. Co-authored-by: Sandra Loosemore <sloosemore@baylibre.com>
41 lines
681 B
C
41 lines
681 B
C
/* { dg-do run } */
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/* { dg-additional-options "-fdump-tree-gimple" } */
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/* PR middle-end/121922 */
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/* Failed to re-check the global flag due to tree sharing. */
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extern int flag;
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int flag = 0;
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int
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test_with_flag ()
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{
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return flag;
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}
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#pragma omp declare variant (test_with_flag) match (user={condition(score(10): flag > 1)})
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int
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test ()
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{
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return 0;
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}
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void
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doit ()
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{
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flag = 0;
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if (test () != 0) __builtin_abort ();
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flag = 1;
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if (test () != 0) __builtin_abort ();
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flag = 42;
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if (test () != 42) __builtin_abort ();
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}
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int main ()
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{
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doit ();
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}
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/* { dg-final { scan-tree-dump-times "flag\\.\[^=\]*= flag;\[\n\r\]+ *if \\(flag\\.\[^>\]*> 1\\)" 3 "gimple" } } */
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