--- /dev/null
+/* PR tree-optimization/102087 */
+/* { dg-do compile } */
+/* { dg-options "-O3 -fprefetch-loop-arrays -w" { target x86_64-*-* powerpc*-*-* } } */
+
+char **Gif_ClipImage_gfi_0;
+int Gif_ClipImage_gfi_1, Gif_ClipImage_y, Gif_ClipImage_shift;
+void Gif_ClipImage() {
+ Gif_ClipImage_y = Gif_ClipImage_gfi_1 - 1;
+ for (; Gif_ClipImage_y >= Gif_ClipImage_shift; Gif_ClipImage_y++)
+ Gif_ClipImage_gfi_0[Gif_ClipImage_shift] =
+ Gif_ClipImage_gfi_0[Gif_ClipImage_y];
+}
+
{ IVbase - STEP, +, STEP } != bound
Here, biasing IVbase by 1 step makes 'bound' be the value before wrap.
*/
- niter->control.base = fold_build2 (MINUS_EXPR, niter_type,
- niter->control.base, niter->control.step);
+ tree base_type = TREE_TYPE (niter->control.base);
+ if (POINTER_TYPE_P (base_type))
+ {
+ tree utype = unsigned_type_for (base_type);
+ niter->control.base
+ = fold_build2 (MINUS_EXPR, utype,
+ fold_convert (utype, niter->control.base),
+ fold_convert (utype, niter->control.step));
+ niter->control.base = fold_convert (base_type, niter->control.base);
+ }
+ else
+ niter->control.base
+ = fold_build2 (MINUS_EXPR, base_type, niter->control.base,
+ niter->control.step);
+
span = fold_build2 (MULT_EXPR, niter_type, niter->niter,
fold_convert (niter_type, niter->control.step));
niter->bound = fold_build2 (PLUS_EXPR, niter_type, span,