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target/10413: SH ICE 3.3 branch
- From: dhananjayd at kpitcummins dot com
- To: gcc-gnats at gcc dot gnu dot org
- Date: 15 Apr 2003 12:00:35 -0000
- Subject: target/10413: SH ICE 3.3 branch
- Reply-to: dhananjayd at kpitcummins dot com
>Number: 10413
>Category: target
>Synopsis: SH ICE 3.3 branch
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Tue Apr 15 12:06:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: dhananjayd at kpitcummins dot com
>Release: 3.2, 3.3 branch
>Organization:
>Environment:
Linux X SH
>Description:
The source code below if compiled with sh-elf-gcc -S -m2 -O2 -mhitachi gives Internal Compiler error.
[dhananjayd at Linuxsrv5 gnu]$ ~/sh2e-elf/bin/sh-elf-gcc -S -m2 -O2 -mhitachi bug.c
bug.c: In function `func1':
bug.c:39: error: insn does not satisfy its constraints:
(insn:HI 29 28 160 0 0x4015b980 (set (reg/v:SI 148 mach [166])
(reg:SI 149 macl)) 122 {movsi_i} (insn_list 28 (nil))
(expr_list:REG_EQUAL (mult:SI (reg:SI 0 r0 [172])
(reg/v:SI 11 r11 [163]))
(nil)))
bug.c:39: internal compiler error: in reload_cse_simplify_operands, at reload1.c
:8335
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
-----------------------------------------------------------
int func0 (unsigned long address,
unsigned long stride,
char* p_buffer,
unsigned long count,
unsigned short chk);
int func1 (unsigned short type,
unsigned long count,
unsigned long address,
unsigned long stride,
void* buffer)
{
unsigned long remainder = count;
unsigned long block_size;
unsigned short chk;
char* p_buffer = buffer;
int err = 0;
block_size = 0x3ff0/8/stride * stride;
while (remainder)
{
if (type == 0)
{
while (1)
{
count = (remainder < block_size) ? remainder : block_size;
err = func0 (address, stride, p_buffer, count, chk = 0);
if (err) break;
}
count = (count < 2) ? count : count - 1;
p_buffer += count;
}
remainder -= count;
address += count * stride;
}
return err;
}
-----------------------------------------------------------
It is trying to load macl into mach but no such instruction exists. The problem disappears in mainline but could appear with different test case with more register pressure.
>How-To-Repeat:
Try compiling above test case with sh-elf-gcc -S -m2 -O2 -mhitachi bug.c
>Fix:
Remove -mhitachi option.
>Release-Note:
>Audit-Trail:
>Unformatted:
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