isl_tab_pip.c: extract out context handling

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

diff --git a/isl_ctx.c b/isl_ctx.c
index fb491a0..a9e29f7 100644 (file)
--- a/isl_ctx.c
+++ b/isl_ctx.c
@@ -8,27 +8,67 @@ struct isl_ctx *isl_ctx_alloc()
 {
        struct isl_ctx *ctx = NULL;
 
-       ctx = isl_alloc_type(NULL, struct isl_ctx);
+       ctx = isl_calloc_type(NULL, struct isl_ctx);
        if (!ctx)
                goto error;
 
+       if (isl_hash_table_init(ctx, &ctx->name_hash, 0))
+               goto error;
+
+       ctx->stats = isl_calloc_type(ctx, struct isl_stats);
+       if (!ctx->stats)
+               goto error;
+
+       ctx->ref = 0;
+
        isl_int_init(ctx->one);
        isl_int_set_si(ctx->one, 1);
 
+       isl_int_init(ctx->negone);
+       isl_int_set_si(ctx->negone, -1);
+
+       isl_int_init(ctx->normalize_gcd);
+
+       ctx->n_cached = 0;
+
 #ifdef ISL_POLYLIB
        ctx->MaxRays = POL_NO_DUAL | POL_INTEGER;
 #endif
 
+       ctx->lp_solver = ISL_LP_TAB;
+       ctx->ilp_solver = ISL_ILP_GBR;
+       ctx->pip = ISL_PIP_TAB;
+
+       ctx->gbr = ISL_GBR_ONCE;
+       ctx->gbr_only_first = 0;
+
        return ctx;
 error:
        free(ctx);
        return NULL;
 }
 
+void isl_ctx_ref(struct isl_ctx *ctx)
+{
+       ctx->ref++;
+}
+
+void isl_ctx_deref(struct isl_ctx *ctx)
+{
+       isl_assert(ctx, ctx->ref > 0, return);
+       ctx->ref--;
+}
+
 void isl_ctx_free(struct isl_ctx *ctx)
 {
        if (!ctx)
                return;
+       isl_assert(ctx, ctx->ref == 0, return);
+       isl_hash_table_clear(&ctx->name_hash);
+       isl_blk_clear_cache(ctx);
        isl_int_clear(ctx->one);
+       isl_int_clear(ctx->negone);
+       isl_int_clear(ctx->normalize_gcd);
+       free(ctx->stats);
        free(ctx);
 }