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https://github.com/crosstool-ng/crosstool-ng.git
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1906cf93f8
You might just say: 'Yeah! crosstool-NG's got its own repo!". Unfortunately, that's because the previous repo got damaged beyond repair and I had no backup. That means I'm putting backups in place in the afternoon. That also means we've lost history... :-(
46 lines
867 B
Diff
46 lines
867 B
Diff
--- /dev/null Sat Dec 14 13:56:51 2002
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+++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr11864-1.c Sun Sep 14 14:32:24 2003
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@@ -0,0 +1,42 @@
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+/* PR optimization/11864
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+ * Reporter: Kazumoto Kojima <kkojima@gcc.gnu.org>
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+ * Summary: [3.3/3.4 regression] miscompiles zero extension and test
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+ * Description:
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+ * gcc-3.3/3.4 -O2 for sh target may miscompile the combination of zero extension
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+ * and test if it's zero.
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+ *
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+ * Testcase tweaked by dank@kegel.com. Not marked as xfail because it's a regression.
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+ */
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+/* { dg-do run } */
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+/* { dg-options "-O2" } */
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+
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+extern void abort(void);
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+
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+int val = 0xff00;
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+
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+int f(void)
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+{
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+ return val;
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+}
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+
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+unsigned char a[1];
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+
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+void foo(void)
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+{
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+ a[0] = f() & 255;
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+
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+ if (!a[0])
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+ a[0] = f() & 255;
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+
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+ if (!a[0])
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+ a[0] = 1 + (f() & 127);
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+}
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+
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+int main(int argc, char **argv)
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+{
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+ foo();
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+ if (!a[0])
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+ abort();
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+
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+ return 0;
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+}
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