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re PR middle-end/33667 (RTL sharing with divmod) 

gcc/
 PR middle-end/33667
 * lower-subreg.c (decompose_multiword_subregs): Use
 validate_unshare_change().

testsuite/
 * gcc.dg/pr33667.c: New testcase.

From-SVN: r129038
This commit is contained in:
Michael Matz 2007-10-05 17:56:52 +00:00 committed by Michael Matz
parent b4da855a9e
commit 1a309dfb7a
4 changed files with 33 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2007-10-05 Michael Matz <matz@suse.de>
PR middle-end/33667
* lower-subreg.c (decompose_multiword_subregs): Use
validate_unshare_change().
2007-10-05 Peter Bergner <bergner@vnet.ibm.com>
* ra-conflict.c: Include "sparseset.h".

2
gcc/lower-subreg.c
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@ -1339,7 +1339,7 @@ decompose_multiword_subregs (void)
int dup_num = recog_data.dup_num[i];
rtx *px = recog_data.operand_loc[dup_num];
validate_change (insn, pl, *px, 1);
validate_unshare_change (insn, pl, *px, 1);
}
i = apply_change_group ();

5
gcc/testsuite/ChangeLog
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@ -1,3 +1,8 @@
2007-10-05 Michael Matz <matz@suse.de>
PR middle-end/33667
* gcc.dg/pr33667.c: New testcase.
2007-10-05 Richard Guenther <rguenther@suse.de>
PR middle-end/33666

21
gcc/testsuite/gcc.dg/pr33667.c Normal file
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@ -0,0 +1,21 @@
/* { dg-do compile } */
/* { dg-options "-O2" } */
typedef unsigned int size_t;
typedef unsigned char uint8_t;
typedef unsigned short int uint16_t;
typedef unsigned long long int uint64_t;
struct magic {
uint8_t mask_op;
union {
uint64_t _mask;
} _u;
union VALUETYPE {
uint16_t h;
} value;
};
void cvt_16(union VALUETYPE *p, const struct magic *m)
{
if (m->_u._mask)
p->h %= (uint16_t) m->_u._mask;
}