40b26f4060
Now the compiler removes code that has no observable effect.
2021-02-22 13:47:32 +08:00
7f05bd797f
Now the compiler tracks code that has no observable effect.
2021-02-21 16:36:29 +08:00
43ca887263
Fixed 'case'/'default' labels in non-compound 'switch' body statement.
2021-05-16 20:43:49 +02:00
eb1cf750f2
-W-unreachable-code option added, alphabetic order of --list-warnings
2021-04-13 09:37:55 +02:00
5c43d1e04f
Changed codegen for postfix inc/dec operations by deferring them till sequence points.
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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
bee559d5f4
Merge pull request #1220 from acqn/StaticConst
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[cc65] Fixed constant boolean expressions
2020-08-31 08:59:25 +02:00
0a96ffc878
Fixed function parameter checking.
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Fixed function return type checking.
2020-08-29 16:37:16 +02:00
3ea3887c77
Fixed warnings on const comparison.
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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
6df4f1996b
Improved diagnostics with more detailed type names.
2020-08-02 23:51:11 +02:00
11a5f0edf1
No "Statement has no effect" warnings on statements with errors.
2020-08-02 23:51:11 +02:00
fd0a6955da
Changed "IsTypeStruct() || IsTypeUnion()" expressions into shorter "IsClassStruct()" expressions.
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Type-classes are groups of types that can be handled in the same way (similar syntax).
2020-07-19 14:30:22 -04:00
768e03a474
Small fixes and tidy-up based on PR review.
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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.
2020-07-19 10:58:33 +02:00
9f67b45ea0
Fixed returning by value structs/unions <= 4 bytes in size from functions. Larger ones are forbidden for now.
2020-07-19 10:58:33 +02:00
a6b04f6e97
Changed most "backticks" (grave accents) into apostrophes.
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Quotations that are embraced by tick marks now look better, in most fonts.
2019-01-05 14:57:12 -05:00
02a914625b
Formatting fixes.
2018-10-02 18:49:53 +02:00
6ad79067ac
Fix a warning.
2018-10-02 18:49:53 +02:00
c797b3b376
Proper warnings for "risky" gotos.
2018-10-02 18:49:53 +02:00
a4b6bb63c0
Minor changes after review.
2018-10-02 18:49:53 +02:00
581c46c213
Add checks for risky goto statements.
2018-10-02 18:49:53 +02:00
1aab287189
Fixed the handling of "while (0) {}".
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It's a corner case; but, conditional macroes might create it -- better safe than sorry.
2017-04-07 09:26:58 -04:00
0390c34e88
Changed multi-line C comments into another style.
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The left side doesn't look unbalanced.
2014-06-30 16:51:07 -04:00
4185caf855
Normalized code.
2014-03-04 01:11:19 +01:00
85885001b1
Removed (pretty inconsistently used) tab chars from source code base.
2013-05-09 13:57:12 +02:00
212941ddb4
Fix consecutive false errors when a label without a following statement is
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encountered.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4894 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-12-30 19:30:54 +00:00
e048d2aeba
Make the warning "statement has no effect" switchable.
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git-svn-id: svn://svn.cc65.org/cc65/trunk@4823 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-10-02 19:32:11 +00:00
48c647b6bd
Added while loop inversion.
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git-svn-id: svn://svn.cc65.org/cc65/trunk@4642 b7a2c559-68d2-44c3-8de9-860c34a00d81
2010-04-17 15:19:35 +00:00
85f96a7d6f
Fixed warnings generated by clang (run by Per Olofsson).
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git-svn-id: svn://svn.cc65.org/cc65/trunk@4255 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-28 15:59:18 +00:00
32e2eb3fad
Fixed parsing a labeled-statement: A label is always part of a statement, it
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is not itself one.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4166 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-09-13 14:36:16 +00:00
84710f7227
Remember more function infos in the Function struct.
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git-svn-id: svn://svn.cc65.org/cc65/trunk@4104 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-08-31 20:37:54 +00:00
0a9c7484ad
Add a warning if a function returning something does not contain a return
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statement.
git-svn-id: svn://svn.cc65.org/cc65/trunk@4095 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-08-31 13:18:49 +00:00
357118697d
A label must always be followed by a statement. Check for this.
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git-svn-id: svn://svn.cc65.org/cc65/trunk@3860 b7a2c559-68d2-44c3-8de9-860c34a00d81
2008-08-01 20:00:23 +00:00
64ec376140
Switch statement may now contain arbitrary code as the standard requires. The
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compiler will now accept stuff like Duffs device.
git-svn-id: svn://svn.cc65.org/cc65/trunk@3859 b7a2c559-68d2-44c3-8de9-860c34a00d81
2008-08-01 19:44:01 +00:00
9df7321d90
Cleanup in ShiftExpr.
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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
2004-07-06 11:30:08 +00:00
8752f0b2c1
Removed ExprLoad to LoadExpr.
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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
2004-06-09 14:12:57 +00:00
eb388aa237
The loop code will access the stackpointer directly
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git-svn-id: svn://svn.cc65.org/cc65/trunk@3106 b7a2c559-68d2-44c3-8de9-860c34a00d81
2004-06-06 10:52:32 +00:00
08eb9b7b0e
Check for and warn on statements that don't have an effect
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git-svn-id: svn://svn.cc65.org/cc65/trunk@3097 b7a2c559-68d2-44c3-8de9-860c34a00d81
2004-06-05 12:56:51 +00:00
104ae3a54f
Move the compiler stack pointer into its own module.
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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
2004-06-05 11:35:53 +00:00
8d8162eb23
Rewrite/cleanup of the complete expression flags handling.
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git-svn-id: svn://svn.cc65.org/cc65/trunk@3056 b7a2c559-68d2-44c3-8de9-860c34a00d81
2004-05-31 15:27:33 +00:00
878e4f1352
Changed the expression parser to return the lvalue flag as part of the
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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
2004-05-25 20:59:38 +00:00
e47ed98aa7
Move the expression test code into separate modules.
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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
2004-03-02 18:00:08 +00:00
cb8c3746f5
A continue statement within a do loop did not work. Cleaned up the loop
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code a little bit.
git-svn-id: svn://svn.cc65.org/cc65/trunk@2722 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-12-09 16:29:59 +00:00
d4bd299b5c
Fixed a bug
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git-svn-id: svn://svn.cc65.org/cc65/trunk@2459 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-09-30 14:40:32 +00:00
14fc5c1073
Renamed exprhs to ExprLoad
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git-svn-id: svn://svn.cc65.org/cc65/trunk@2426 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-08-29 09:16:28 +00:00
81f94afd5c
Rewrote type conversions
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git-svn-id: svn://svn.cc65.org/cc65/trunk@2262 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-08-11 20:18:30 +00:00
c8d76046cb
Added better error recovery
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git-svn-id: svn://svn.cc65.org/cc65/trunk@2013 b7a2c559-68d2-44c3-8de9-860c34a00d81
2003-03-13 12:35:54 +00:00
89f00263af
Fixed a problem with the test expression in a for loop: It was not evaluated
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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
2002-11-24 18:18:16 +00:00
dadd136ae1
Use constants for datatype sizes
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git-svn-id: svn://svn.cc65.org/cc65/trunk@1480 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-11-02 12:39:10 +00:00
a96da498f5
Renamed the functions working with "struct Function".
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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
2002-06-12 12:12:04 +00:00
1483fa741a
Small change to make line info more exact
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git-svn-id: svn://svn.cc65.org/cc65/trunk@1048 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-10-13 09:20:26 +00:00
41d2cc8f91
Rewrote the switch statement
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git-svn-id: svn://svn.cc65.org/cc65/trunk@1021 b7a2c559-68d2-44c3-8de9-860c34a00d81
2001-10-11 08:02:03 +00:00
acqn
Dirk Lehmann
Oliver Schmidt
Greg King
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