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$size() now works correctly for all cases!

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It seems the issues was that AST_MULTIRANGE is converted into a multirange_dimensions[] array on the AST_MEMORY node directly.
This commit is contained in:
Udi Finkelstein 2017-09-26 20:34:24 +03:00
parent 6ddc6a7af4
commit e951ac0dfb
2 changed files with 28 additions and 22 deletions
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34
frontends/ast/simplify.cc
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@ -1883,17 +1883,19 @@ skip_dynamic_range_lvalue_expansion:;
int dim = 1;
if (str == "\\$size" && children.size() == 2) {
AstNode *buf = children[1]->clone();
// Evaluate constant expression
while (buf->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
dim = buf->asInt(false);
delete buf;
}
AstNode *buf = children[0]->clone();
int mem_depth = 1;
AstNode *id_ast = NULL;
// Is this needed?
//while (buf->simplify(true, false, false, stage, width_hint, sign_hint, false)) { }
buf->detectSignWidth(width_hint, sign_hint);
if (buf->type == AST_IDENTIFIER) {
id_ast = buf->id2ast;
if (id_ast == NULL && current_scope.count(buf->str))
@ -1907,30 +1909,28 @@ skip_dynamic_range_lvalue_expansion:;
if (str == "\\$bits") {
if (mem_range->type == AST_RANGE) {
if (!mem_range->range_valid)
log_error("Failed to detect width of memory access `%s' at %s:%d!\n", mem_range->str.c_str(), filename.c_str(), linenum);
log_error("Failed to detect width of memory access `%s' at %s:%d!\n", buf->str.c_str(), filename.c_str(), linenum);
mem_depth = mem_range->range_left - mem_range->range_right + 1;
} else if (mem_range->type == AST_MULTIRANGE) {
for (auto n : mem_range->children)
mem_depth *= (n->range_left - n->range_right + 1);
} else
log_error("Unknown memory depth AST type in `%s' at %s:%d!\n", mem_range->str.c_str(), filename.c_str(), linenum);
log_error("Unknown memory depth AST type in `%s' at %s:%d!\n", buf->str.c_str(), filename.c_str(), linenum);
} else {
// $size()
if (mem_range->type == AST_RANGE) {
if (!mem_range->range_valid)
log_error("Failed to detect width of memory access `%s' at %s:%d!\n", mem_range->str.c_str(), filename.c_str(), linenum);
log_error("Failed to detect width of memory access `%s' at %s:%d!\n", buf->str.c_str(), filename.c_str(), linenum);
int dims;
if (id_ast->multirange_dimensions.empty())
dims = 1;
else
dims = GetSize(id_ast->multirange_dimensions)/2;
if (dim == 1)
width_hint = mem_range->range_left - mem_range->range_right + 1;
} else if (mem_range->type == AST_MULTIRANGE) {
log("multirange!\n");
int s = mem_range->children.size();
if (dim <= s) {
auto n = mem_range->children[dim-1];
width_hint = (n->range_left - n->range_right + 1);
} else if (dim > s+1)
log_error("Dimension %d out of range in `%s', as it only has dimensions 1..%d at %s:%d!\n", dim, mem_range->str.c_str(), s+1, filename.c_str(), linenum);
width_hint = (dims > 1) ? id_ast->multirange_dimensions[1] : (mem_range->range_left - mem_range->range_right + 1);
else if (dim <= dims) {
width_hint = id_ast->multirange_dimensions[2*dim-1];
} else if ((dim > dims+1) || (dim < 0))
log_error("Dimension %d out of range in `%s', as it only has dimensions 1..%d at %s:%d!\n", dim, buf->str.c_str(), dims+1, filename.c_str(), linenum);
} else
log_error("Unknown memory depth AST type in `%s' at %s:%d!\n", mem_range->str.c_str(), filename.c_str(), linenum);
log_error("Unknown memory depth AST type in `%s' at %s:%d!\n", buf->str.c_str(), filename.c_str(), linenum);
}
}
}