[Bug c/21380] New: ICE compiling with -O
trt at acm dot org
gcc-bugzilla@gcc.gnu.org
Wed May 4 14:31:00 GMT 2005
When compiling the program below, gcc 4.0.0 dies with an ICE.
This also happens with gcc version 4.0.1 20050430 (prerelease)
gcc400 -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-4.0.0/configure --prefix=/opt/gcc400
Thread model: posix
gcc version 4.0.0
command line:
gcc400 -O -c foo.c
program:
void bar (void);
void
foo (int *diff)
{
double deltay = 0.0;
int Stangent = 0;
int mindiff;
int Sflipped = 0;
int i;
int Sturn, Snofit;
Sturn = 1;
if (Sturn)
Stangent = 1;
if (Sturn)
{
Sflipped = 0;
Snofit = 1;
while (Snofit)
{
Snofit = 0;
mindiff = 0;
for (i = 0; i < 4; i++)
mindiff = diff[i];
while (!Snofit && (mindiff < 0.0))
{
deltay = (Stangent ? deltay : 0.0);
if (deltay < 0.0)
Snofit = 1;
for (i = 0; i < 4; i++)
{
}
}
if (Snofit)
if (Sflipped)
break;
}
if (Snofit)
bar ();
}
}
--
Summary: ICE compiling with -O
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: trt at acm dot org
CC: gcc-bugs at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21380
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