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3c1bb85b8e
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179 Commits

Author SHA1 Message Date
mrdudz
3c1bb85b8e remove dangling spaces 2022-04-17 16:07:09 +02:00
acqn
6beb090193 Fixed anonymous bit-fields declared with typedef'ed type names. 2022-01-03 23:54:14 +08:00
acqn
38511843e5 Fixed crash with labels in non-function/block scopes. 2022-01-03 23:50:48 +08:00
acqn
5adb29ce31 Made "bit-field-ness" a type property instead of a SymbolEntry or ExprDesc property. 
Fixed integer promotion and result type in certain operations.
Fixed bit-fields 'op=' and postfix inc/dec operators.
 2021-06-09 08:03:12 +02:00
acqn
1d7bf7355c Better function naming in declare.c. 
Scalar initialization routines need only 'const Type*' as parameters.
 2021-06-09 08:03:12 +02:00
acqn
18ae09f682 Less excessive errors with failed array declarations. 2021-05-14 10:48:17 +02:00
mrdudz
18f94d1fe0 rework to use a magic value instead of a flag, as suggested by Oliver 2021-05-11 14:00:49 +02:00
mrdudz
c9f242e566 Extend #pragma wrapped-call to support "bank" argument 2021-05-05 14:42:29 +02:00
acqn
9cea9ce5e2 Made the code more constness-correct with 'Type' usage. 2021-04-19 15:36:55 +02:00
acqn
896f463a23 Used more specific pointers instead of the "arbitary attribute pointer" used in type strings. 2021-04-19 15:36:55 +02:00
acqn
b802efde54 Fixed ternary result type detection with pointer types. 
Fixed pointer type comparison and conversion, especially regarding qualifiers.
Improved diagnostics about type comparison and conversion.
Reorganized some type-comparison/conversion functions.
 2021-03-30 19:41:20 +02:00
acqn
cb8fbf4772 Removed the non-existing-in-C "struct/union scope" for structs/unions. 
Fixed handling of struct/union field declarations without identifiers, which do nothing.
 2021-03-29 19:28:22 +02:00
acqn
2aad72af90 Removed trailing whitespaces. 2021-03-03 10:07:24 +01:00
acqn
5c43d1e04f Changed codegen for postfix inc/dec operations by deferring them till sequence points. 
This usually allows faster & smaller code.
Note that deferred operations must still be called at sequence points even if the whole expressions containing them had constant values.
 2020-10-20 22:01:55 +02:00
Jesse Rosenstock
b931e65811 Fix ICE for bit-fields with typedef 
Fixes #1267

Avoid ICE, but treat plain int bit-fields declared via typedef as
signed rather than unsigned.  It is more efficient to treat them
as unsigned, but this requires distinguishing int from signed int,
and this is curently not done.
 2020-10-03 15:04:31 +02:00
Jesse Rosenstock
d0089aef95 Fix bit-field truncation warning message 
Fix copy & paste bug with warning message.

struct X {
      signed int a : 3;
};
struct X g = { 5 };

Before:
s.c(4): Warning: Implicit truncation from 'int' to 'int : 3' in bit-field
initializer changes value from 5 to 5

After:
s.c(4): Warning: Implicit truncation from 'int' to 'int : 3' in bit-field
initializer changes value from 5 to -3

Fixes #1268
 2020-09-26 17:41:45 -04:00
Greg King
ea95728330 Avoided an avalanche of messages from bad bit-field declarations. 
Made cc65 replace a bad bit-field type with a good one, and always parse the field width.

Shortenned a parameter name to a spelling that's consistent with other function headers.
 2020-09-22 12:47:09 -04:00
Greg King
07ea5259ac Changed a cc65 error message to say that the sizes of bit-field types (not bit-fields) are limited. 2020-09-22 12:47:08 -04:00
Jesse Rosenstock
4e4e4c2d21 Allow char bit-fields 
These are not required to be supported (only int, signed int, and
unsigned int are required), but most compilers support it.

https://port70.net/~nsz/c/c89/c89-draft.html#3.5.2.1
https://port70.net/~nsz/c/c89/c89-draft.html#A.6.5.8

For consistency with other integral types, plain `char` bit-fields
are unsigned, regardless of the `--signed-chars` option.

Fixes #1047
 2020-09-08 14:24:04 +02:00
Jesse Rosenstock
9a0e4a35e1 Fix enum bit-field ICE #1244 
This previously resulted in an ICE:
cc65: Check failed: (Entry->Type->C & T_MASK_SIGN) == T_SIGN_SIGNED,
file 'cc65/symtab.c', line 874

This CHECK is in the code that deals with changing `int` bitfields to
`unsigned int`.

Work around this by treating enum bit-fields as having their signedness
specified, so this type change code does not get called.

Fixes #1244.
 2020-09-07 11:21:23 +02:00
acqn
6b64b43395 Made local static data use a separated label pool from the code label pool. 2020-08-31 09:12:03 +02:00
acqn
9398e1cd33 Use a dedicated label pool for literals. 2020-08-31 09:12:03 +02:00
Oliver Schmidt
bee559d5f4
Merge pull request #1220 from acqn/StaticConst 
[cc65] Fixed constant boolean expressions
 2020-08-31 08:59:25 +02:00
acqn
8b580e1191 Disabled struct/union fields of 'void' type. 2020-08-30 17:33:36 +02:00
acqn
abcc2a8f1a Disallowed void arrays of elements of variant sizes. 2020-08-30 17:33:36 +02:00
acqn
60c59f59a3 Renamed StaticConstExpr() and StaticConstAbsIntExpr() with clearer comments. 2020-08-30 00:26:52 +08:00
acqn
df755df44d Warning about ESU types declared inside parameter list as they are invisble outside. 2020-08-29 16:37:16 +02:00
acqn
33a75e0a73 Optimized parameter list checking. 
Fixed function type comparison between ANSI and K&R styles.
 2020-08-29 16:37:16 +02:00
acqn
0a96ffc878 Fixed function parameter checking. 
Fixed function return type checking.
 2020-08-29 16:37:16 +02:00
acqn
4e61ae5b36 Fixed function parameter type conversion. 2020-08-29 16:37:16 +02:00
acqn
632da3f4ee Fixed tracking and checking flexible array members. 2020-08-29 16:35:42 +02:00
acqn
504aee3835
Merge branch 'master' into StaticConst 2020-08-27 06:27:23 +08:00
acqn
1957dc7a5c Disallowed arrays of incomplete types. 
Fixed diagnostics on incomplete local arrays.
 2020-08-26 22:14:51 +02:00
acqn
f5b1b69376 Forbid struct/union fields of incomplete types. 2020-08-26 22:14:51 +02:00
acqn
725511131a Fixed constant expression checks with no-code requirement. 
Used return-by-value initialization for ExprDesc.
 2020-08-20 07:52:11 +08:00
acqn
3ea3887c77 Fixed warnings on const comparison. 
Warnings on expressions with no effects.
Fixed const ternary.
Fixed ternary with struct/union types as the true/false-branch expressions.
 2020-08-20 07:52:06 +08:00
Jesse Rosenstock
ff535b8e1a Treat signed int bit-fields as signed 
Prior to this PR, `int`, `signed int`, and `unsigned int`
bitfields are all treated as `unsigned int`.

With this PR, `signed int` will be treated as `signed int`,
and the others remain unsigned.

Since `Type` does not distinguish between `int` and `signed int`,
add an extra `int* SignenessSpecified` param to `ParseTypeSpec`
so we can tell these apart for bit-fields and treat plain `int : N`
as `unsigned int : N` since it is more efficient to zero-extend
than sign-extend.

Fixes #1095
 2020-08-18 12:23:20 +02:00
acqn
56b659c0be Made char type a distinct type. 2020-08-18 10:48:38 +02:00
acqn
13ed557b92 Fixed compatibility checking of function declarations by using the composite types of them. 2020-08-14 18:33:54 +02:00
acqn
8a417ff039 Improved ESU declaration failure handling. 2020-08-14 18:15:31 +02:00
acqn
fe44fe963f Disallowed empty enums. 2020-08-12 15:02:43 +02:00
acqn
97065faf1a Disallowed struct/union types of 0 size as cc65 is not ready to support them. 2020-08-12 15:02:43 +02:00
acqn
4dfc1a5ded Using a dedicated SC_FICTITIOUS flag in case of parsing errors. 2020-08-12 15:01:31 +02:00
acqn
fe3f726fd6 Improved incomplete enum typed diagnostics. 2020-08-12 15:01:31 +02:00
acqn
68d63b089d Reduced error flood raised by misplaced variable declarations. 2020-08-12 15:01:31 +02:00
acqn
8cdffc1944 No storage for unsuccessfully parsed variables. 2020-08-07 10:16:33 +02:00
acqn
f59d6b8f6a Redefining enums/structs/unions of 0 size is no longer treated as declarations and thus forbidden. 2020-08-07 10:16:33 +02:00
acqn
0df45fe2f2 Utility for getting ESU tag type symbols. 2020-08-02 18:55:46 +02:00
acqn
e526cbbff6 Fixed handling multiple storage specifiers in one declaration. 2020-08-02 02:20:25 +02:00
Jesse Rosenstock
3df6c383c0 Add support for static_assert 
Add C11's _Static_assert and static_assert macro.

This is like #error, but is handled at a later stage
of translation, so it is possible to check sizes of
types, values of enums, etc.

https://en.cppreference.com/w/c/language/_Static_assert
https://port70.net/~nsz/c/c11/n1570.html#6.7.10
 2020-07-30 19:17:11 +02:00