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* [Bug lto/55066] New: lto integer-cst change causes ICE
@ 2012-10-24 22:17 andi-gcc at firstfloor dot org
2012-10-25 10:47 ` [Bug lto/55066] " rguenth at gcc dot gnu.org
2012-10-25 11:45 ` andi-gcc at firstfloor dot org
0 siblings, 2 replies; 3+ messages in thread
From: andi-gcc at firstfloor dot org @ 2012-10-24 22:17 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55066
Bug #: 55066
Summary: lto integer-cst change causes ICE
Classification: Unclassified
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: lto
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: andi-gcc@firstfloor.org
A large LTO allyes kernel build (no small test case
unfortunately) recently started ICEing during the LTO phase with
linux-lto-2.6/drivers/isdn/hardware/eicon/message.c:12035:0: internal compiler
error: in widest_int_cst_value, at tree.c:10214
static byte mixer_request(dword Id, word Number, DIVA_CAPI_ADAPTER *a, PLCI
*plci, APPL *appl, API_PARSE *msg)
^
0x8c05f8 widest_int_cst_value(tree_node const*)
../../gcc/gcc/tree.c:10213
0x81987f find_bswap_1
../../gcc/gcc/tree-ssa-math-opts.c:1669
0x819a23 find_bswap_1
../../gcc/gcc/tree-ssa-math-opts.c:1733
0x81a194 find_bswap
../../gcc/gcc/tree-ssa-math-opts.c:1779
0x81a194 execute_optimize_bswap
../../gcc/gcc/tree-ssa-math-opts.c:1905
Please submit a full bug report,
I bisected it down to this change from Richi:
2012-10-18 Richard Guenther <rguenther@suse.de>
* lto-streamer.h (enum LTO_tags): Add LTO_integer_cst.
* lto-streamer-in.c (lto_input_tree): Use it.
* lto-streamer-out.c (lto_output_tree): Likewise, for
!TREE_OVERFLOW integer constants only.
* tree-streamer-in.c (unpack_ts_int_cst_value_fields): New function.
(unpack_value_fields): Call it.
(streamer_read_integer_cst): Simplify.
* tree-streamer-out.c (pack_ts_int_cst_value_fields): New function.
(streamer_pack_tree_bitfields): Call it.
(streamer_write_integer_cst): Adjust.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug lto/55066] lto integer-cst change causes ICE
2012-10-24 22:17 [Bug lto/55066] New: lto integer-cst change causes ICE andi-gcc at firstfloor dot org
@ 2012-10-25 10:47 ` rguenth at gcc dot gnu.org
2012-10-25 11:45 ` andi-gcc at firstfloor dot org
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-10-25 10:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55066
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2012-10-25
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-10-25 10:47:22 UTC ---
Please make sure to have the followup fix installed:
2012-10-22 Richard Biener <rguenther@suse.de>
PR lto/55021
* tree-streamer-in.c (unpack_ts_int_cst_value_fields): Remove
bogus truncations.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug lto/55066] lto integer-cst change causes ICE
2012-10-24 22:17 [Bug lto/55066] New: lto integer-cst change causes ICE andi-gcc at firstfloor dot org
2012-10-25 10:47 ` [Bug lto/55066] " rguenth at gcc dot gnu.org
@ 2012-10-25 11:45 ` andi-gcc at firstfloor dot org
1 sibling, 0 replies; 3+ messages in thread
From: andi-gcc at firstfloor dot org @ 2012-10-25 11:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55066
Andi Kleen <andi-gcc at firstfloor dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
--- Comment #2 from Andi Kleen <andi-gcc at firstfloor dot org> 2012-10-25 11:45:38 UTC ---
Ok seems to work now with latest trunk
^ permalink raw reply [flat|nested] 3+ messages in thread
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2012-10-24 22:17 [Bug lto/55066] New: lto integer-cst change causes ICE andi-gcc at firstfloor dot org
2012-10-25 10:47 ` [Bug lto/55066] " rguenth at gcc dot gnu.org
2012-10-25 11:45 ` andi-gcc at firstfloor dot org
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