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re PR middle-end/23199 (ICE in int_mode_for_mode, at stor-layout.c:251)

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PR middle-end/23199
	* cfgrtl.c (safe_insert_insn_on_edge): Use can_copy_p to detect
	whether registers live on the edge can be saved/restored.

From-SVN: r105618
This commit is contained in:
Eric Botcazou 2005-10-19 16:42:17 +02:00 committed by Eric Botcazou
parent 486516b60b
commit e48050bd06
4 changed files with 47 additions and 8 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-10-19 Eric Botcazou <ebotcazou@libertysurf.fr>
PR middle-end/23199
* cfgrtl.c (safe_insert_insn_on_edge): Use can_copy_p to detect
whether registers live on the edge can be saved/restored.
2005-10-19 Kaz Kojima <kkojima@gcc.gnu.org>
* config/sh/sh.c (fixup_mova): Skip notes.

10
gcc/cfgrtl.c
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@ -1456,16 +1456,9 @@ safe_insert_insn_on_edge (rtx insn, edge e)
regset killed;
rtx save_regs = NULL_RTX;
unsigned regno;
int noccmode;
enum machine_mode mode;
reg_set_iterator rsi;
#ifdef AVOID_CCMODE_COPIES
noccmode = true;
#else
noccmode = false;
#endif
killed = ALLOC_REG_SET (&reg_obstack);
for (x = insn; x; x = NEXT_INSN (x))
@ -1491,7 +1484,8 @@ safe_insert_insn_on_edge (rtx insn, edge e)
if (mode == VOIDmode)
return false;
if (noccmode && mode == CCmode)
/* Avoid copying in CCmode if we can't. */
if (!can_copy_p (mode))
return false;
save_regs = alloc_EXPR_LIST (0,

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2005-10-19 Eric Botcazou <ebotcazou@libertysurf.fr>
* gcc.dg/profile-generate-2.c: New test.
2005-10-18 Danny Smith <dannysmith@users.sourceforge.net>
PR target/23589

35
gcc/testsuite/gcc.dg/profile-generate-2.c Normal file
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@ -0,0 +1,35 @@
/* PR middle-end/23199 */
/* Testcase by Ralf Menzel <menzel@ls6.cs.uni-dortmund.de> */
/* { dg-do compile } */
/* { dg-options "-O -fprofile-generate" } */
union rtunion_def
{
struct rtx_def *rt_rtx;
};
typedef union rtunion_def rtunion;
struct rtx_def
{
unsigned int in_struct : 1;
union u {
rtunion fld[1];
} u;
};
typedef struct rtx_def *rtx;
static void
check_annul_list_true_false (int annul_true_p, rtx delay_list)
{
rtx temp;
while (1)
{
temp = delay_list;
rtx trial = (((temp)->u.fld[0]).rt_rtx);
if ((annul_true_p && (((trial))->in_struct)))
return;
}
}