Bug 19198 - ICE in copyprop_hardreg_forward_1
Summary: ICE in copyprop_hardreg_forward_1
Status: RESOLVED FIXED
Alias: None
Product: gcc
Classification: Unclassified
Component: rtl-optimization (show other bugs)
Version: 3.4.4
: P2 normal
Target Milestone: 3.4.4
Assignee: Not yet assigned to anyone
URL:
Keywords: ice-on-valid-code
Depends on:
Blocks:
 
Reported: 2004-12-30 03:30 UTC by matt
Modified: 2005-07-23 22:49 UTC (History)
1 user (show)

See Also:
Host:
Target: i386-unknown-freebsd4.10
Build:
Known to work:
Known to fail:
Last reconfirmed:

Attachments
Pre-processed output from file causing the ICE (150.06 KB, application/octet-stream)
2004-12-30 03:42 UTC, matt 		Details
View All Add an attachment (proposed patch, testcase, etc.)

Note You need to log in before you can comment on or make changes to this bug.
Description matt 2004-12-30 03:30:59 UTC 
root@penelope# gcc -v
Using builtin specs.
gcc version 2.95.4 20020320 [FreeBSD]

----------------------------------------------

root@penelope# uname -a
FreeBSD penelope.gsicomp.on.ca 4.10-RELEASE-p5 FreeBSD 4.10-RELEASE-p5 #0: Wed 
Dec  8 22:11:29 EST 2004     
root@penelope.gsicomp.on.ca:/usr/obj/usr/src/sys/PENELOPE.20040530.01  i386

----------------------------------------------

matt@penelope# make shell32_main.o
gcc34 -c -I. -I. -I../../include -I../../include  -D__WINESRC__  -D_SHELL32_ -
DCOM_NO_WINDOWS_H --save-temps -D_REENTRANT -fPIC -Wall -pipe -mpreferred-stack-
boundary=2 -fno-strict-aliasing -gstabs+ -Wpointer-arith  -g -O2 -o 
shell32_main.o shell32_main.c
gcc34: warning: -pipe ignored because -save-temps specified
shell32_main.c: In function `SHGetFileInfoW':
shell32_main.c:185: error: insn does not satisfy its constraints:
(insn 1822 1263 1265 118 shell32_main.c:484 (parallel [
            (set (reg:CCNO 17 flags)
                (compare:CCNO (and:QI (reg:QI 5 di [orig:63 flags ] [63])
                        (const_int -32 [0xffffffe0]))
                    (const_int 0 [0x0])))
            (set (reg:QI 5 di [orig:63 flags ] [63])
                (and:QI (reg:QI 5 di [orig:63 flags ] [63])
                    (const_int -32 [0xffffffe0])))
        ]) 205 {*andqi_2} (nil)
    (expr_list:REG_UNUSED (reg:QI 5 di [orig:63 flags ] [63])
        (nil)))
shell32_main.c:185: internal compiler error: in copyprop_hardreg_forward_1, at 
regrename.c:1549

----------------------------------------------
Comment 1 matt 2004-12-30 03:42:27 UTC 
Created attachment 7843 [details]
Pre-processed output from file causing the ICE

gzipped pre-processed output.  (Bugzilla didn't like it uncompressed since it
was >1MB).
Comment 2 matt 2004-12-30 03:44:21 UTC 
The ICE goes away when compiling without -O2.
Comment 3 Andrew Pinski 2004-12-30 05:22:10 UTC 
What exact version of 3.4.4 is this aka give the output of "gcc34 -v".

Also if this is a three week old snapshot, try a newer snapshot as I think this has been fixed already.
Comment 4 matt 2004-12-30 15:28:29 UTC 
Ignore the "gcc -v" that claims to be 2.95.4.  That's from the wrong gcc.

Here's the right info:

matt@penelope# gcc34 -v
Reading specs from /usr/local/lib/gcc/i386-portbld-freebsd4.10/3.4.4/specs
Configured with: ./..//gcc-3.4-20041210/configure --disable-nls --with-system-
zlib --with-libiconv-prefix=/usr/local --program-suffix=34 --with-gxx-include-
dir=/usr/local/lib/gcc/i386-portbld-freebsd4.10/3.4.4/include/c++/ --disable-
shared --prefix=/usr/local i386-portbld-freebsd4.10
Thread model: posix
gcc version 3.4.4 20041210 (prerelease) [FreeBSD]
Comment 5 Andrew Pinski 2005-01-23 23:46:11 UTC 
I think this is a dup of bug 18932 which is already fixed in a later version of 3.4.4, can you try a newer 
version of 3.4.4?
Comment 6 matt 2005-01-26 00:05:02 UTC 
Upgraded to gcc-20050107 and the problem has gone away.
Changing this bug to CLOSED.