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re PR debug/54402 (var-tracking does not scale)

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PR debug/54402
	* var-tracking.c (fp_setter): Return false if there is REG_CFA_RESTORE
	hfp note.
	(vt_initialize): Look for fp_setter in any bb, not just successor of
	entry bb.

From-SVN: r193152
This commit is contained in:
Jakub Jelinek 2012-11-05 08:58:48 +01:00 • committed by Jakub Jelinek
parent ead4af4fb6
commit d459f8707b
2 changed files with 22 additions and 6 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2012-11-05 Jakub Jelinek <jakub@redhat.com>
PR debug/54402
* var-tracking.c (fp_setter): Return false if there is REG_CFA_RESTORE
hfp note.
(vt_initialize): Look for fp_setter in any bb, not just successor of
entry bb.
2012-11-05 Oleg Endo <olegendo@gcc.gnu.org>
* config/sh/sh.h (TARGET_CACHE32, TARGET_HARVARD): Delete macro.

20
gcc/var-tracking.c
View file

@ -9543,16 +9543,25 @@ fp_setter (rtx insn)
pat = XEXP (expr, 0);
}
if (GET_CODE (pat) == SET)
return SET_DEST (pat) == hard_frame_pointer_rtx;
{
if (SET_DEST (pat) != hard_frame_pointer_rtx)
return false;
}
else if (GET_CODE (pat) == PARALLEL)
{
int i;
for (i = XVECLEN (pat, 0) - 1; i >= 0; i--)
if (GET_CODE (XVECEXP (pat, 0, i)) == SET
&& SET_DEST (XVECEXP (pat, 0, i)) == hard_frame_pointer_rtx)
return true;
break;
if (i < 0)
return false;
}
return false;
else
return false;
if (find_reg_note (insn, REG_CFA_RESTORE, hard_frame_pointer_rtx))
return false;
return true;
}
/* Initialize cfa_base_rtx, create a preserved VALUE for it and
@ -9600,7 +9609,7 @@ vt_init_cfa_base (void)
static bool
vt_initialize (void)
{
basic_block bb, prologue_bb = single_succ (ENTRY_BLOCK_PTR);
basic_block bb;
HOST_WIDE_INT fp_cfa_offset = -1;
alloc_aux_for_blocks (sizeof (struct variable_tracking_info_def));
@ -9858,8 +9867,7 @@ vt_initialize (void)
VTI (bb)->out.stack_adjust += post;
}
if (bb == prologue_bb
&& fp_cfa_offset != -1
if (fp_cfa_offset != -1
&& hard_frame_pointer_adjustment == -1
&& RTX_FRAME_RELATED_P (insn)
&& fp_setter (insn))