c/7873: arm-linux-gcc fails when assigning address to a bit field
alex.zatsman@analog.com
alex.zatsman@analog.com
Mon Sep 9 15:41:00 GMT 2002
>Number: 7873
>Category: c
>Synopsis: arm-linux-gcc fails when assigning address to a bit field
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: ice-on-legal-code
>Submitter-Id: net
>Arrival-Date: Mon Sep 09 15:26:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Alex Zatsman
>Release: arm-linux-gcc v.3.2
>Organization:
Analog Devices
>Environment:
System: Linux tula 2.4.9 #1 SMP Fri Oct 26 14:37:41 EDT 2001 i686 unknown
Architecture: i686
host: i386-pc-linux-gnu
build: i386-pc-linux-gnu
target: i386-pc-linux-gnu
configured with: arm-linux set
>Description:
./arm-linux-gcc -c xxx2.c
xxx2.c: In function `foo':
xxx2.c:13: unrecognizable insn:
(insn 13 11 15 (set (reg:SI 34)
(ashift:SI (symbol_ref:SI ("x0"))
(const_int 12 [0xc]))) -1 (nil)
(nil))
xxx2.c:13: Internal compiler error in extract_insn, at recog.c:2148
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
>How-To-Repeat:
/** Run "arm-linux-gcc -c" on this preprocessed segment : **/
unsigned int x0 = 0;
typedef struct {
unsigned int field1 : 20;
unsigned int field2 : 12;
} XX;
static XX yy;
static void foo (void)
{
yy.field1 = (unsigned int ) (&x0);
}
>Fix:
You tell me :)
>Release-Note:
>Audit-Trail:
>Unformatted:
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