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* expmed.c (expand_shift): Correctly test for low part of a
	subreg.

Index: testsuite/ChangeLog

	* gcc.c-torture/execute/20020225-2.c: New test.

From-SVN: r50114
This commit is contained in:
Geoffrey Keating 2002-02-27 20:27:38 +00:00 committed by Geoffrey Keating
parent 6bc627b3b8
commit 4e07d762e9
4 changed files with 29 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-02-27 Geoffrey Keating <geoffk@redhat.com>
* expmed.c (expand_shift): Correctly test for low part of a
subreg.
2002-02-27 Ulrich Weigand <uweigand@de.ibm.com>
* config/s390/s390.c (s390_chunkify_pool): Do not confuse

2
gcc/expmed.c
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@ -1913,7 +1913,7 @@ expand_shift (code, mode, shifted, amount, target, unsignedp)
op1 = GEN_INT ((unsigned HOST_WIDE_INT) INTVAL (op1)
% GET_MODE_BITSIZE (mode));
else if (GET_CODE (op1) == SUBREG
&& SUBREG_BYTE (op1) == 0)
&& subreg_lowpart_p (op1))
op1 = SUBREG_REG (op1);
}
#endif

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2002-02-27 Geoffrey Keating <geoffk@redhat.com>
* gcc.c-torture/execute/20020225-2.c: New test.
2002-02-27 Zack Weinberg <zack@codesourcery.com>
* gcc.c-torture/execute/920730-1t.c,

19
gcc/testsuite/gcc.c-torture/execute/20020225-2.c Normal file
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@ -0,0 +1,19 @@
static int
test(int x)
{
union
{
int i;
double d;
} a;
a.d = 0;
a.i = 1;
return x >> a.i;
}
int main(void)
{
if (test (5) != 2)
abort ();
exit (0);
}