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testsuite: Add testcase for already fixed PR [PR97960]

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This testcase has been fixed by
r11-5904-g4cf70c20cb10acd6fb1016611d05540728176b60
so I'm checking it in so that we can close the PR.

2021-02-02  Jakub Jelinek  <jakub@redhat.com>

	PR tree-optimization/97960
	* g++.dg/torture/pr97960.C: New test.
This commit is contained in:
Jakub Jelinek 2021-02-02 10:01:40 +01:00
parent bc7c2b34c3
commit eedda4e160
1 changed files with 30 additions and 0 deletions
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gcc/testsuite/g++.dg/torture/pr97960.C Normal file
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// PR tree-optimization/97960
// { dg-do run }
#if __CHAR_BIT__ == 8 && __SIZEOF_INT__ == 4
const int &
foo (const int &d, const int &f)
{
if (d < f)
return f;
return d;
}
short a[575];
unsigned b[25];
unsigned char g;
#endif
int
main ()
{
#if __CHAR_BIT__ == 8 && __SIZEOF_INT__ == 4
for (int e = 0; e < 23; ++e)
a[e * 23] = 16137;
for (signed char h = (unsigned char) (foo (g, 253) + 3); h < 24; h++)
b[h] = 1064739102;
for (int e = 0; e < 23; ++e)
if (a[e * 23] != 16137)
__builtin_abort ();
#endif
}