isl_pw_qpolynomial_bound: handle isl_pw_qpolynomials with wrapped domains

[platform/upstream/isl.git] / isl_ctx.c

diff --git a/isl_ctx.c b/isl_ctx.c
index b1c9028..1cab6ad 100644 (file)
--- a/isl_ctx.c
+++ b/isl_ctx.c
@@ -10,13 +10,57 @@
 #include "isl_ctx.h"
 #include "isl_vec.h"
 
-isl_ctx *isl_ctx_alloc_with_options(struct isl_options *opt)
+static struct isl_options *find_nested_options(struct isl_arg *arg,
+       void *opt, struct isl_arg *wanted)
+{
+       int i;
+       struct isl_options *options;
+
+       if (arg == wanted)
+               return opt;
+
+       for (i = 0; arg[i].type != isl_arg_end; ++i) {
+               if (arg[i].type != isl_arg_child)
+                       continue;
+               options = find_nested_options(arg[i].u.child.child,
+                               *(void **)(((char *)opt) + arg->offset), wanted);
+               if (options)
+                       return options;
+       }
+
+       return NULL;
+}
+
+static struct isl_options *find_nested_isl_options(struct isl_arg *arg,
+       void *opt)
+{
+       return find_nested_options(arg, opt, isl_options_arg);
+}
+
+void *isl_ctx_peek_options(isl_ctx *ctx, struct isl_arg *arg)
+{
+       if (!ctx)
+               return NULL;
+       return find_nested_options(ctx->user_arg, ctx->user_opt, arg);
+}
+
+isl_ctx *isl_ctx_alloc_with_options(struct isl_arg *arg, void *user_opt)
 {
        struct isl_ctx *ctx = NULL;
+       struct isl_options *opt = NULL;
+       int opt_allocated = 0;
 
-       if (!opt)
+       if (!user_opt)
                return NULL;
 
+       opt = find_nested_isl_options(arg, user_opt);
+       if (!opt) {
+               opt = isl_options_new_with_defaults();
+               if (!opt)
+                       goto error;
+               opt_allocated = 1;
+       }
+
        ctx = isl_calloc_type(NULL, struct isl_ctx);
        if (!ctx)
                goto error;
@@ -28,6 +72,9 @@ isl_ctx *isl_ctx_alloc_with_options(struct isl_options *opt)
        if (!ctx->stats)
                goto error;
 
+       ctx->user_arg = arg;
+       ctx->user_opt = user_opt;
+       ctx->opt_allocated = opt_allocated;
        ctx->opt = opt;
        ctx->ref = 0;
 
@@ -37,6 +84,9 @@ isl_ctx *isl_ctx_alloc_with_options(struct isl_options *opt)
        isl_int_init(ctx->one);
        isl_int_set_si(ctx->one, 1);
 
+       isl_int_init(ctx->two);
+       isl_int_set_si(ctx->two, 2);
+
        isl_int_init(ctx->negone);
        isl_int_set_si(ctx->negone, -1);
 
@@ -44,8 +94,13 @@ isl_ctx *isl_ctx_alloc_with_options(struct isl_options *opt)
 
        ctx->n_cached = 0;
 
+       ctx->error = isl_error_none;
+
        return ctx;
 error:
+       isl_arg_free(arg, user_opt);
+       if (opt_allocated)
+               isl_options_free(opt);
        free(ctx);
        return NULL;
 }
@@ -56,7 +111,7 @@ struct isl_ctx *isl_ctx_alloc()
 
        opt = isl_options_new_with_defaults();
 
-       return isl_ctx_alloc_with_options(opt);
+       return isl_ctx_alloc_with_options(isl_options_arg, opt);
 }
 
 void isl_ctx_ref(struct isl_ctx *ctx)
@@ -79,9 +134,12 @@ void isl_ctx_free(struct isl_ctx *ctx)
        isl_blk_clear_cache(ctx);
        isl_int_clear(ctx->zero);
        isl_int_clear(ctx->one);
+       isl_int_clear(ctx->two);
        isl_int_clear(ctx->negone);
        isl_int_clear(ctx->normalize_gcd);
-       free(ctx->opt);
+       isl_arg_free(ctx->user_arg, ctx->user_opt);
+       if (ctx->opt_allocated)
+               free(ctx->opt);
        free(ctx->stats);
        free(ctx);
 }
@@ -92,3 +150,13 @@ struct isl_options *isl_ctx_options(isl_ctx *ctx)
                return NULL;
        return ctx->opt;
 }
+
+enum isl_error isl_ctx_last_error(isl_ctx *ctx)
+{
+       return ctx->error;
+}
+
+void isl_ctx_reset_error(isl_ctx *ctx)
+{
+       ctx->error = isl_error_none;
+}