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* [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute
[not found] <bug-21392-8722@http.gcc.gnu.org/bugzilla/>
@ 2006-02-16 2:26 ` jde at google dot com
2006-02-16 2:51 ` [Bug middle-end/21392] [4.0 Regression] " pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
3 siblings, 0 replies; 6+ messages in thread
From: jde at google dot com @ 2006-02-16 2:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from jde at google dot com 2006-02-16 02:26 -------
I was able to reproduce this bug. Indeed the offset is bytewise but the load is
done with a movl ("movl foo+2, %eax") Below is the program used to reproduce,
the compiler and flags used, and the resultant output & assembly.
Cheers
-Jeff
[calliope]% cat main.c
#include <stdio.h>
typedef enum { false, true } bool __attribute__((mode (byte)));
bool foo[16] = { 1, 0, 1, 0, 1, 0, 1, 0,
1, 0, 1, 0, 1, 0, 1, 0 } ;
long test (int i)
{
return foo[i];
}
int main(int argc, char*argv[])
{
printf ("foo[2] (should be 1): %d\n", test(2));
printf ("foo[5] (should be 0): %d\n", test(5));
}
[calliope]% i686-piii-linux-gnu-gcc-4.0.1 -O6 main.c -o main ; ./main
foo[2] (should be 1): 0
foo[5] (should be 0): 16777216
[calliope]% cat main.s
.file "main.c"
.globl foo
.data
.type foo, @object
.size foo, 16
foo:
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.long 1
.long 0
.text
.p2align 4,,15
.globl test
.type test, @function
test:
pushl %ebp
movl %esp, %ebp
movl 8(%ebp), %eax
popl %ebp
movl foo(%eax), %eax
ret
.size test, .-test
.section .rodata.str1.1,"aMS",@progbits,1
.LC0:
.string "foo[2] (should be 1): %d\n"
.LC1:
.string "foo[5] (should be 0): %d\n"
.text
.p2align 4,,15
.globl main
.type main, @function
main:
pushl %ebp
movl %esp, %ebp
subl $8, %esp
movl foo+2, %eax
andl $-16, %esp
subl $16, %esp
movl $.LC0, (%esp)
movl %eax, 4(%esp)
call printf
movl foo+5, %eax
movl $.LC1, 8(%ebp)
movl %eax, 12(%ebp)
leave
jmp printf
.size main, .-main
.ident "GCC: (GNU) 4.0.1"
.section .note.GNU-stack,"",@progbits
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/21392] [4.0 Regression] Wrong code generated for array of enum with "mode" attribute
[not found] <bug-21392-8722@http.gcc.gnu.org/bugzilla/>
2006-02-16 2:26 ` [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute jde at google dot com
@ 2006-02-16 2:51 ` pinskia at gcc dot gnu dot org
2006-03-11 3:17 ` mmitchel at gcc dot gnu dot org
2007-01-18 4:09 ` gdr at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-02-16 2:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2006-02-16 02:51 -------
Confirmed, only a 4.0.x regression. It works on the mainline and in 4.1.0.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |wrong-code
Known to fail| |4.0.3
Known to work| |4.1.0
Last reconfirmed|0000-00-00 00:00:00 |2006-02-16 02:51:46
date| |
Summary|Wrong code generated for |[4.0 Regression] Wrong code
|array of enum with "mode" |generated for array of enum
|attribute |with "mode" attribute
Target Milestone|--- |4.0.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/21392] [4.0 Regression] Wrong code generated for array of enum with "mode" attribute
[not found] <bug-21392-8722@http.gcc.gnu.org/bugzilla/>
2006-02-16 2:26 ` [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute jde at google dot com
2006-02-16 2:51 ` [Bug middle-end/21392] [4.0 Regression] " pinskia at gcc dot gnu dot org
@ 2006-03-11 3:17 ` mmitchel at gcc dot gnu dot org
2007-01-18 4:09 ` gdr at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-03-11 3:17 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.0.3 |4.0.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/21392] [4.0 Regression] Wrong code generated for array of enum with "mode" attribute
[not found] <bug-21392-8722@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2006-03-11 3:17 ` mmitchel at gcc dot gnu dot org
@ 2007-01-18 4:09 ` gdr at gcc dot gnu dot org
3 siblings, 0 replies; 6+ messages in thread
From: gdr at gcc dot gnu dot org @ 2007-01-18 4:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from gdr at gcc dot gnu dot org 2007-01-18 04:09 -------
won't fix for GCC-4.0.x
--
gdr at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |WONTFIX
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute
2005-05-04 21:33 [Bug c/21392] New: " pkoning at equallogic dot com
2005-05-05 0:03 ` [Bug middle-end/21392] " pinskia at gcc dot gnu dot org
@ 2005-05-05 0:04 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-05 0:04 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
GCC build triplet|i386-unknown-netbsdelf1.6.2 |
GCC host triplet|i386-unknown-netbsdelf1.6.2 |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute
2005-05-04 21:33 [Bug c/21392] New: " pkoning at equallogic dot com
@ 2005-05-05 0:03 ` pinskia at gcc dot gnu dot org
2005-05-05 0:04 ` pinskia at gcc dot gnu dot org
1 sibling, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-05-05 0:03 UTC (permalink / raw)
To: gcc-bugs
--
What |Removed |Added
----------------------------------------------------------------------------
Component|c |middle-end
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21392
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-01-18 4:09 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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[not found] <bug-21392-8722@http.gcc.gnu.org/bugzilla/>
2006-02-16 2:26 ` [Bug middle-end/21392] Wrong code generated for array of enum with "mode" attribute jde at google dot com
2006-02-16 2:51 ` [Bug middle-end/21392] [4.0 Regression] " pinskia at gcc dot gnu dot org
2006-03-11 3:17 ` mmitchel at gcc dot gnu dot org
2007-01-18 4:09 ` gdr at gcc dot gnu dot org
2005-05-04 21:33 [Bug c/21392] New: " pkoning at equallogic dot com
2005-05-05 0:03 ` [Bug middle-end/21392] " pinskia at gcc dot gnu dot org
2005-05-05 0:04 ` pinskia at gcc dot gnu dot org
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