Bug 12584 - gcc fails to compile source file from mythtv
Summary: gcc fails to compile source file from mythtv
Status: RESOLVED FIXED
Alias: None
Product: gcc
Classification: Unclassified
Component: target (show other bugs)
Version: 3.3.1
: P2 normal
Target Milestone: 3.4.0
Assignee: Not yet assigned to anyone
URL:
Keywords:
: 13043 (view as bug list)
Depends on:
Blocks:
 
Reported: 2003-10-12 06:28 UTC by evan
Modified: 2005-07-23 22:49 UTC (History)
2 users (show)

See Also:
Host:
Target:
Build:
Known to work:
Known to fail:
Last reconfirmed:

Attachments
Output from -save-temps (9.69 KB, application/octet-stream)
2003-10-12 06:31 UTC, evan 		Details
Offending source file (2.63 KB, application/octet-stream)
2003-10-12 06:32 UTC, evan 		Details
View All Add an attachment (proposed patch, testcase, etc.)

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Description evan 2003-10-12 06:28:03 UTC 
gcc fails to compile source file from mythtv - unknown insn.
Reading specs from
/usr/local/gcc-3.3.1/lib/gcc-lib/x86_64-unknown-linux-gnu/3.3.1/specs
Configured with: ../gcc-3.3.1/configure --prefix=/usr/local/gcc-3.3.1
--enable-threads --disable-nls --enable-languages=c,c++,f77
Thread model: posix
gcc version 3.3.1
 /usr/local/gcc-3.3.1/lib/gcc-lib/x86_64-unknown-linux-gnu/3.3.1/cc1 -E -quiet
-v -I/usr/lib64/qt-3.1/mkspecs/default -I. -I/usr/local/include
-I../../libs/libmythtv -I/usr/lib64/qt-3.1/include -D__GNUC__=3
-D__GNUC_MINOR__=3 -D__GNUC_PATCHLEVEL__=1 -D_REENTRANT -D_GNU_SOURCE
-D_FILE_OFFSET_BITS=64 -DPREFIX="/usr/local" -DMMX -DQT_NO_DEBUG
-DQT_THREAD_SUPPORT -DQT_PLUGIN filter_linearblend.c -march=pentiumpro -Wall -W
-Wno-missing-prototypes -fomit-frame-pointer -fPIC -O3 filter_linearblend.i
ignoring nonexistent directory
"/usr/local/gcc-3.3.1/x86_64-unknown-linux-gnu/include"
ignoring duplicate directory "/usr/local/include"
  as it is a non-system directory that duplicates a system directory
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib64/qt-3.1/mkspecs/default
 .
 ../../libs/libmythtv
 /usr/lib64/qt-3.1/include
 /usr/local/include
 /usr/local/gcc-3.3.1/include
 /usr/local/gcc-3.3.1/lib/gcc-lib/x86_64-unknown-linux-gnu/3.3.1/include
 /usr/include

End of search list.
 /usr/local/gcc-3.3.1/lib/gcc-lib/x86_64-unknown-linux-gnu/3.3.1/cc1
-fpreprocessed filter_linearblend.i -quiet -dumpbase filter_linearblend.c
-march=pentiumpro -auxbase-strip filter_linearblend.o -O3 -Wall -W
-Wno-missing-prototypes -version -fomit-frame-pointer -fPIC -o filter_linearblend.s
GNU C version 3.3.1 (x86_64-unknown-linux-gnu)
        compiled by GNU C version 3.3.1.
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=127775
filter_linearblend.c: In function `mm_support':
filter_linearblend.c:148: error: unrecognizable insn:
(insn:HI 327 326 116 14 0x2a959a2660 (set (reg/v:SI 59)
        (plus:SI (mult:SI (reg/v:SI 59)
                (const_int 4 [0x4]))
            (const_int 1 [0x1]))) -1 (insn_list 326 (nil))
    (nil))
filter_linearblend.c:148: internal compiler error: in extract_insn, at recog.c:2175
Comment 1 evan 2003-10-12 06:31:36 UTC 
Created attachment 4921 [details]
Output from -save-temps
Comment 2 evan 2003-10-12 06:32:15 UTC 
Created attachment 4922 [details]
Offending source file
Comment 3 Falk Hueffner 2003-10-12 09:38:59 UTC 
I can reproduce with with gcc version 3.3.1 20030626 (Debian prerelease), I 
don't have anything newer, so leaving unconfirmed for now.

Test case:

int mm_support(int edx)
{
    int rval = 1;
    if (edx)
        rval |= 4;
    return rval;
}

Options needed: -m64 -march=pentiumpro -O

Probably a bad interaction of -march=pentiumpro with the 64 bit code generation.

bash-2.05b$ gcc -m64 -march=pentiumpro -S tmp.c -O
tmp.c: In function `mm_support':
tmp.c:7: error: unrecognizable insn:
(insn 39 38 23 0 0x401d6040 (set (reg/v:SI 60)
        (plus:SI (mult:SI (reg/v:SI 60)
                (const_int 4 [0x4]))
            (const_int 1 [0x1]))) -1 (insn_list 38 (nil))
    (nil))
tmp.c:7: internal compiler error: in extract_insn, at recog.c:2175
Comment 4 Andrew Pinski 2003-10-12 17:37:38 UTC 
On the mainline, it errors out saying that the option -march=pentiumpro does not support 64bit 
code.
Comment 5 Andrew Pinski 2003-10-13 05:41:20 UTC 
Since the options are no rejected on the mainline and this is not a regression, closing as 
fixed.
Comment 6 Andrew Pinski 2003-11-13 23:09:32 UTC 
*** Bug 13043 has been marked as a duplicate of this bug. ***