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-rw-r--r--gcc/testsuite/gcc.dg/tree-ssa-chrec/ssa-chrec-11.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa-chrec/ssa-chrec-11.c b/gcc/testsuite/gcc.dg/tree-ssa-chrec/ssa-chrec-11.c
new file mode 100644
index 00000000000..b68b3d5bf1f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa-chrec/ssa-chrec-11.c
@@ -0,0 +1,59 @@
+/* { dg-do compile } */
+/* { dg-options "-O1 -fscalar-evolutions -fdump-tree-scev-details" } */
+
+
+int main(void)
+{
+ int a = -100;
+ int b = 2;
+
+ int f = 6;
+ int g = 7;
+ int h = 8;
+
+ /* Exercises complex loop exit conditions.
+ FIXME: This is a strange case where the compiler cc1 and the wrapper gcc
+ don't produce the same representation:
+
+ (with gcc from command line)
+
+ T.1_9 = f_2 | a_1;
+ if (T.1_9 == 0)
+ {
+ goto <UL47e0>;
+ }
+
+ versus (with cc1 called from gdb):
+
+ if (f_2 == 0)
+ {
+ if (a_1 == 0)
+ {
+ goto <ULc7e0>;
+ }
+ else
+ {
+ (void)0
+ }
+ }
+ else
+ {
+ (void)0
+ };
+ */
+ while (f || a)
+ {
+ a += b;
+
+ f += g;
+ g += h;
+ }
+}
+
+/*
+ g -> {7, +, 8}_1
+ f -> {6, +, {7, +, 8}_1}_1
+ a -> {-100, +, 2}_1
+*/
+
+/* FIXME. */