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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... :-(
49 lines
1.4 KiB
Diff
49 lines
1.4 KiB
Diff
--- /dev/null Sat Dec 14 13:56:51 2002
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+++ gcc-3.3.1/gcc/testsuite/gcc.dg/pr11736-1.c Sun Sep 14 14:26:33 2003
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@@ -0,0 +1,45 @@
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+/* PR optimization/11736
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+ * Reporter: marcus@mc.pp.se
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+ * Summary: Stackpointer messed up on SuperH
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+ * Keywords: wrong-code
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+ * Description:
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+ * When a function with 5 arguments is called in both branches of a
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+ * conditional, and only the last argument differs, the code to push that
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+ * last argument on the stack gets confused.
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+ * Space for the fifth argument is reserved on the stack by the
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+ * instruction I have marked as "A". However, if the else-branch is
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+ * taken the stackpointer is decremented _again_ at "B". This
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+ * decrementation is never restored, and it is only due to the
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+ * restoration of r15 from r14 that the function works at all. With
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+ * -fomit-frame-pointer it will crash.
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+ *
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+ * Testcase tweaked by dank@kegel.com
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+ * Not marked as xfail since it's a regression from hardhat 2.0 gcc-2.97
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+ * and dodes gcc-3.0.2
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+ */
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+
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+/* { dg-do run } */
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+/* { dg-options "-O1 -fomit-frame-pointer" } */
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+
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+int expected_e;
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+
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+void bar(int a, int b, int c, int d, int e)
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+{
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+ if (e != expected_e)
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+ abort();
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+}
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+
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+void foo(int a)
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+{
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+ if (a)
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+ bar(0, 0, 0, 0, 1);
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+ else
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+ bar(0, 0, 0, 0, 0); /* stack pointer decremented extra time here, causing segfault */
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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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+ for (expected_e = 0; expected_e < 2; expected_e++)
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+ foo(expected_e);
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+ return 0;
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+}
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