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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c64
1 files changed, 64 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c b/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c
new file mode 100644
index 000000000..b1bed75da
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20040326-2.c
@@ -0,0 +1,64 @@
+/* { dg-options "-O2 -fno-inline-functions" } */
+/* { dg-do run } */
+
+/* Gimplification problem exposed by zsh. All the side-effects in
+ function arguments and in the called expression should happen
+ before the actual function call. */
+extern void abort (void);
+int A;
+
+typedef void (*fnptr) (void);
+fnptr *F;
+
+void
+foo (int x)
+{
+ if (A == x)
+ abort ();
+}
+
+void
+bar (int x, int y)
+{
+ if (x == 5 || y != 3)
+ abort ();
+}
+
+void
+boz (void)
+{
+ abort ();
+}
+
+void
+baz (void)
+{
+ if (*F != boz)
+ abort ();
+}
+
+fnptr B[2] = { baz, boz };
+
+main ()
+{
+ int b, c;
+
+ /* The gimplifier was emitting A++ after the call to foo. */
+ A = 5;
+ foo (A++);
+
+ /* The increment to 'b' and 'c' must happen before the call. However,
+ the first argument to bar() must be the original value of 'b', while
+ the second argument must be the new value of 'c'. */
+ b = 4;
+ c = 2;
+ bar (b++, ++c);
+
+ /* This call via function pointer *F should go to baz, but F should
+ be incremented before the actual call (i.e., right before the
+ call F should be pointing to boz). */
+ F = &B[0];
+ (*F++) ();
+
+ return 0;
+}