patches/gcc/3.3.3/pr11864-1-test.patch
changeset 1 eeea35fbf182
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/patches/gcc/3.3.3/pr11864-1-test.patch	Sat Feb 24 11:00:05 2007 +0000
     1.3 @@ -0,0 +1,45 @@
     1.4 +--- /dev/null	Sat Dec 14 13:56:51 2002
     1.5 ++++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr11864-1.c	Sun Sep 14 14:32:24 2003
     1.6 +@@ -0,0 +1,42 @@
     1.7 ++/* PR optimization/11864
     1.8 ++ * Reporter: Kazumoto Kojima <kkojima@gcc.gnu.org>
     1.9 ++ * Summary: [3.3/3.4 regression] miscompiles zero extension and test
    1.10 ++ * Description:
    1.11 ++ * gcc-3.3/3.4 -O2 for sh target may miscompile the combination of zero extension
    1.12 ++ * and test if it's zero.
    1.13 ++ *
    1.14 ++ * Testcase tweaked by dank@kegel.com.  Not marked as xfail because it's a regression.
    1.15 ++ */
    1.16 ++/* { dg-do run } */
    1.17 ++/* { dg-options "-O2" } */
    1.18 ++
    1.19 ++extern void abort(void);
    1.20 ++
    1.21 ++int val = 0xff00;
    1.22 ++
    1.23 ++int f(void)
    1.24 ++{
    1.25 ++	return val;
    1.26 ++}
    1.27 ++
    1.28 ++unsigned char a[1];
    1.29 ++
    1.30 ++void foo(void)
    1.31 ++{
    1.32 ++	a[0] = f() & 255;
    1.33 ++
    1.34 ++	if (!a[0])
    1.35 ++		a[0] = f() & 255;
    1.36 ++
    1.37 ++	if (!a[0])
    1.38 ++		a[0] = 1 + (f() & 127);
    1.39 ++}
    1.40 ++
    1.41 ++int main(int argc, char **argv)
    1.42 ++{
    1.43 ++	foo();
    1.44 ++	if (!a[0])
    1.45 ++		abort();
    1.46 ++
    1.47 ++	return 0;
    1.48 ++}