Commit Graph

140 Commits

Author SHA1 Message Date
Bill Currie 006c16807d Add the statement for based loads.
Oops :P
2011-02-09 22:40:16 +09:00
Bill Currie 0d5ab6600d Store the source expression in a statement.
This makes problem reporting more informative.
2011-02-08 18:18:34 +09:00
Bill Currie 3c849b970b Handle union access now that they're detected properly. 2011-02-08 14:45:48 +09:00
Bill Currie 3b080fcbb0 Fix an uninitialized variable. 2011-02-08 13:27:37 +09:00
Bill Currie 65a07ada1c Implement offset dereferences. 2011-02-07 14:56:29 +09:00
Bill Currie d2b464053c Fix assignment sub-expressions. 2011-02-07 14:43:07 +09:00
Bill Currie ef2ad46f7a Convert complex types to a suitable low-level type.
This takes care of moving structures etc around.
2011-02-07 10:55:09 +09:00
Bill Currie b629c12b31 Do not change the type of the return operand.
Doing so made a mess of returning expressions. It was probably a holdover
from before getting instructions with void operand types working.
2011-02-07 10:21:54 +09:00
Bill Currie e4ac92b5f2 Auto-cast between enums and the default type. 2011-02-06 20:08:16 +09:00
Bill Currie c53001800a Create a struct for representing specifiers.
The specifiers are yet to come (next few commits), but this will be
necessary when they do.
2011-02-01 21:15:51 +09:00
Bill Currie e7424e1496 Don't segfault on bare return statements.
I will probably need to do something about the required operand for v6
progs, but this will do for now.
2011-01-30 21:43:56 +09:00
Bill Currie 834417b8c8 Add "debug" diagnotic printing, and use it.
Debug diagnostics are silent for verbosity levels less than 1.
2011-01-28 13:28:45 +09:00
Bill Currie a37bdd9fb5 Free removed sblocks. 2011-01-28 13:23:20 +09:00
Bill Currie 80424f6ad5 Ensure functions are always properly terminated.
Control that reaches the end of a function must see a return statement.
2011-01-28 13:14:30 +09:00
Bill Currie 9159daf99d Do simple unreachable block analysis and dead block removal. 2011-01-28 11:45:04 +09:00
Bill Currie 90a2738459 Add the label to the block to which it refers. 2011-01-28 11:41:53 +09:00
Bill Currie 4738c767a2 Fix branch label handling.
Conditional branches and goto now go to the correct location.
2011-01-27 21:11:32 +09:00
Bill Currie 71b5decbe8 Get assignments to .return working.
I really do not like the mechanism I currently use for handling pointer
derefences vs pointer assignments, but this will have to do for now until
I can get qfcc producing code again.
2011-01-27 15:44:11 +09:00
Bill Currie 56106892c8 The & operator produces a pointer, not void. 2011-01-27 15:44:10 +09:00
Bill Currie 6ce3c5a59a Get statments being emitted to the code segment.
The first function seems to work fine, but there's a problems with the
scope of params causing params to get their knickers in a twist (tangled
linked list).
2011-01-25 15:46:48 +09:00
Bill Currie fd3b594ca5 Move label relocs to the relevant statement block. 2011-01-25 15:45:31 +09:00
Bill Currie 0624408317 Move the diagnostic functions into their own file. 2011-01-24 21:54:57 +09:00
Bill Currie d618e51dc8 Move save_string and make_string into strpool
Might not be the perfect place, but at least they're strongly related.
2011-01-24 21:32:48 +09:00
Bill Currie a79b6f0a6c Partially implement casts. 2011-01-23 11:53:08 +09:00
Bill Currie 55d3d17807 Add a missing break.
"return" falling through to "goto" was bad news :)
2011-01-22 15:52:01 +09:00
Bill Currie 3b462e16cf Produce flow diagrams of the basic blocks. 2011-01-22 11:40:53 +09:00
Bill Currie bcb2667b73 Possibly get vector calls working. 2011-01-21 19:40:46 +09:00
Bill Currie 52b561f7cb Nuke bind expressions.
Since I'm planning on implementing CSE and other optimizations, they're
rather redundant (and I'm having trouble getting them to work).
2011-01-21 19:07:58 +09:00
Bill Currie 977c48d728 Make operator type overrides clear. 2011-01-21 15:57:53 +09:00
Bill Currie aec9f256a7 Get calls mostly working.
Bind seems to be broken, but parameters seem to be being set correctly.
2011-01-21 15:54:53 +09:00
Bill Currie 96fae582e3 Implement bind expressions. 2011-01-21 11:27:40 +09:00
Bill Currie 4a24393d8d Temp expressions now use operands instead of defs. 2011-01-21 11:26:43 +09:00
Bill Currie 2998e578fb Get very basic deref assignments working.
More complicated expressions will not work yet.
2011-01-21 10:59:16 +09:00
Bill Currie ff6e2584da Handle block sub-expressions that produce results. 2011-01-21 10:57:47 +09:00
Bill Currie 16e013ff5d Allow the operand to override the symbol's type. 2011-01-21 10:56:32 +09:00
Bill Currie 3f2793ef72 Get a lot of statements being generated. 2011-01-20 23:26:13 +09:00
Bill Currie e45ea4b2ae Move the statement printing near the top of the file. 2011-01-20 18:07:24 +09:00
Bill Currie 0594609b3a Get the label from the right expression. 2011-01-19 22:25:43 +09:00
Bill Currie 5deda9c9b9 Clean out ex_def as ex_symbol replaces it. 2011-01-19 22:25:04 +09:00
Bill Currie b5424bca7d Start work on getting expressions converted to internal statements. 2011-01-19 15:47:45 +09:00