* gcc.c-torture/execute/20020615-1.c: New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@54650 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 59 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.c-torture/execute/20020615-1.c b/gcc/testsuite/gcc.c-torture/execute/20020615-1.c
new file mode 100644
index 00000000000..8a0d37d8070
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/20020615-1.c
@@ -0,0 +1,59 @@
+/* PR target/7042.  In cris.md the return pattern and its condition
+   had a bug uncovered by the combination of saved registers and
+   filled delay slot, where the delay-slot insn set the
+   return-value register.  Derived from ghostscript-6.52 (GPL)
+   by hp@axis.com.  */
+
+typedef struct font_hints_s {
+  int axes_swapped;
+  int x_inverted, y_inverted;
+} font_hints;
+typedef struct gs_fixed_point_s {
+  long x, y;
+} gs_fixed_point;
+
+int
+line_hints(const font_hints *fh, const gs_fixed_point *p0,
+	   const gs_fixed_point *p1)
+{
+  long dx = p1->x - p0->x;
+  long dy = p1->y - p0->y;
+  long adx, ady;
+  int xi = fh->x_inverted, yi = fh->y_inverted;
+  int hints;
+  if (xi)
+    dx = -dx;
+  if (yi)
+    dy = -dy;
+  if (fh->axes_swapped) {
+    long t = dx;
+    int ti = xi;
+    dx = dy, xi = yi;
+    dy = t, yi = ti;
+  }
+  adx = dx < 0 ? -dx : dx;
+  ady = dy < 0 ? -dy : dy;
+  if (dy != 0 && (adx <= ady >> 4)) {
+    hints = dy > 0 ? 2 : 1;
+    if (xi)
+      hints ^= 3;
+  } else if (dx != 0 && (ady <= adx >> 4)) {
+    hints = dx < 0 ? 8 : 4;
+    if (yi)
+      hints ^= 12;
+  } else
+    hints = 0;
+  return hints;
+}
+int main ()
+{
+  static font_hints fh[] = {{0, 1, 0}, {0, 0, 1}, {0, 0, 0}};
+  static gs_fixed_point gsf[]
+    = {{0x30000, 0x13958}, {0x30000, 0x18189},
+       {0x13958, 0x30000}, {0x18189, 0x30000}};
+  if (line_hints (fh, gsf, gsf + 1) != 1
+      || line_hints (fh + 1, gsf + 2, gsf + 3) != 8
+      || line_hints (fh + 2, gsf + 2, gsf + 3) != 4)
+    abort ();
+  exit (0);
+}