Renamed GetReplacementType() to GetStructReplacementType().
Clarified in comments that most *Struct* facilities work for unions as well.
Made it clear in some error messages with regards to structs/unions.
That lets them match old-style definitions. It avoids "Type conflict" error messages. It allows shorter function calls.
Fixed the types of some variables in "test/ref/otccex.c". It avoids crashes on 64-bit Windows (32-bit Windows with 64-bit pointers).
The change allows cc65 to be compiled on 64-bit Windows, without getting warnings. That OS is actually 32 bits with 64-bit pointers. Its pointers are "long long" instead of "long". The change uses type-names that are configured for the actual pointer width.
The type needs to change (to array); but, the address shouldn't be changed -- it already points to the first element.
Based on a bug analysis by Daniel Serpell.
The code
void foo(void)
{
int i;
long l = 1L * i;
}
triggered an
Internal compiler error:
Code generation messed up: StackPtr is -4, should be -2
Greg King: "We are lucky that the bug is simple -- a missing "else". The result is that the compiler thinks that it does the opposite of what it actually does: It thinks that it pushes the non-constant expression onto the stack. It doesn't; so, cc65's stack pointer is wrong."
constant, exchange the order of the operands so that better code can be
generated.
git-svn-id: svn://svn.cc65.org/cc65/trunk@5721 b7a2c559-68d2-44c3-8de9-860c34a00d81
constant where sometimes passed down to the code generator in a way that
caused wrong code to be generated.
This change may go into 2.13 after some testing.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4743 b7a2c559-68d2-44c3-8de9-860c34a00d81
data, and at the end of compilation merged if possible. Literals for unused
functions are removed together with the function.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4501 b7a2c559-68d2-44c3-8de9-860c34a00d81
together with a function, if it is not used. Literal storage can now be
controlled by #pragma writable-strings on a per function basis.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4499 b7a2c559-68d2-44c3-8de9-860c34a00d81
__attribute__((noexit)) that may be used to mark functions that won't return.
Added this attribute to the exit() function in stdlib.h.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4372 b7a2c559-68d2-44c3-8de9-860c34a00d81
arrays. An array element has all qualifiers from itself and from the array
declaration.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4334 b7a2c559-68d2-44c3-8de9-860c34a00d81
function", so dereferencing a function is a legal operation. The result is
immediately converted back to "pointer to function" again. Note: Because of
performance considerations, cc65 does treat functions as "pointer to function"
internally, but nevertheless dereferencing a function must be possible.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4330 b7a2c559-68d2-44c3-8de9-860c34a00d81
expression that yields a constant value may have side effects, and the
expression code must not be removed in this case.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4138 b7a2c559-68d2-44c3-8de9-860c34a00d81
expression that yields a constant value may have side effects, and the
expression code must not be removed in this case.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4137 b7a2c559-68d2-44c3-8de9-860c34a00d81
second operand is necessary. Instead of generating interleaved code with
several jumps, just move the code to the right place.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4105 b7a2c559-68d2-44c3-8de9-860c34a00d81
protect against missing parenthesis like in (si & 0x7F == 0). Hopefully
without too many false positives.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4057 b7a2c559-68d2-44c3-8de9-860c34a00d81
is bad, since information is lost when converting functions and arrays to
pointers and cannot be regained easily. So I've reverted the change and fixed
the problem in a less general manner.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3984 b7a2c559-68d2-44c3-8de9-860c34a00d81
type. Started to add general handling of address size flags in types.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3891 b7a2c559-68d2-44c3-8de9-860c34a00d81
using signed integers as data types. This led to wrong results for mod, div
and compares.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3797 b7a2c559-68d2-44c3-8de9-860c34a00d81
to element. This will make some valid code work but emits now errors for
questionable code.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3775 b7a2c559-68d2-44c3-8de9-860c34a00d81
identifier is not the last token on the line, the compiler will run into
an error.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3744 b7a2c559-68d2-44c3-8de9-860c34a00d81
elements to a string of structs, each representing one type element. This
should fix problems on unusual architectures, since it is no longer necessary
to embedd pointers and other data converted to numbers in the string of
unsigned shorts.
Increased the TypeCode length to unsigned long to make room for more type
bits.
Inline more functions in datatype.h.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3709 b7a2c559-68d2-44c3-8de9-860c34a00d81
The ArrayRef() does really need a rewrite, now since we have better
expression info.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3364 b7a2c559-68d2-44c3-8de9-860c34a00d81
arrays to pointer to first element, and functions to pointer to function.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3169 b7a2c559-68d2-44c3-8de9-860c34a00d81
Changed GetCodePos to also remember the stack pointer at the given location,
this removes the necessity to manipulate the stack when removing code. Since
CodeMark is now a struct, the API for most asmcode functions has changed.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3145 b7a2c559-68d2-44c3-8de9-860c34a00d81
Copy the current optimization settings into a code segment on creation.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3129 b7a2c559-68d2-44c3-8de9-860c34a00d81
Moved LoadExpr + support functions into a separate module.
Removed obsolete files.
Some cleanup and makefile adjustments.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3113 b7a2c559-68d2-44c3-8de9-860c34a00d81
Improved the inlining of standard C functions. Added more standard functions
to inline.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3095 b7a2c559-68d2-44c3-8de9-860c34a00d81
ExprDesc structure, not as separate value.
WARNING: The current code does compile but does not work correctly, because
the lvalue flag is part of ExprDesc.Flags and not masked out in several tests
throughout the code.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3046 b7a2c559-68d2-44c3-8de9-860c34a00d81
argument to the sizeof operator, if the type spec is starting with this
keyword.
git-svn-id: svn://svn.cc65.org/cc65/trunk@2921 b7a2c559-68d2-44c3-8de9-860c34a00d81
The Test() and TestInParens() functions do now return information about the
expression that was tested.
An if... statement where the expression is always true will now print a
warning "Unreachable code" if it has an else clause.
git-svn-id: svn://svn.cc65.org/cc65/trunk@2889 b7a2c559-68d2-44c3-8de9-860c34a00d81
correctly if it did not contain an explicit comparison operator.
Removed an old hack from the test subroutine that did no longer work.
git-svn-id: svn://svn.cc65.org/cc65/trunk@1619 b7a2c559-68d2-44c3-8de9-860c34a00d81
When assigning structures, copy them using the primary register when the
size is 1, 2, or 4.
When assigning structures, allow structures by value when the size is 1,
2, or 4. These structures are expected to be in the primary register. The
only case when this can happen is by return from function, so this change
makes div() work.
git-svn-id: svn://svn.cc65.org/cc65/trunk@1477 b7a2c559-68d2-44c3-8de9-860c34a00d81
Allow the second and third operand of the :? operator to be of type int.
git-svn-id: svn://svn.cc65.org/cc65/trunk@1395 b7a2c559-68d2-44c3-8de9-860c34a00d81
Fixed a problem with K&R functions: In a function with no return type
specified, the compiler did not allow a simple "return" statement. However,
there was no "void" type at that time, so it was not possible to specify
something else. The solution is to allow omission of a return value in a
K&R function with an implicit int type. Other types or an explicit int is
still checked.
git-svn-id: svn://svn.cc65.org/cc65/trunk@1302 b7a2c559-68d2-44c3-8de9-860c34a00d81
cdecl functions, this generates better code.
Remove a small error that caused indirect non fastcall function to always be
handled as variadic, which meant a useless load of the Y register was added.
git-svn-id: svn://svn.cc65.org/cc65/trunk@1292 b7a2c559-68d2-44c3-8de9-860c34a00d81
