Bill Currie
7853bf1859
Calculate a node's successors and predecessors.
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The dot graphs are a little odd (arrow heads on the wrong end of the
predecessor edges), but things seem to be correct.
2012-11-15 13:44:06 +09:00
Bill Currie
739ebc522c
Begin working on flow analysis.
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For now, variable and flow graph node maps are built.
2012-11-15 13:44:06 +09:00
Bill Currie
a22260030a
Use value for pointer operands.
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This allows daglabels on pointer operands without a redundant daglabel
pointer.
2012-11-15 13:44:06 +09:00
Bill Currie
dbf1aa8f72
Attach dags to statement blocks.
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Now, if a dag is attached to a statement block, it will be included in the
flowgraph with that statement block.
2012-11-15 13:44:06 +09:00
Bill Currie
7b2e426545
Support temp operands in dags.
2012-11-15 13:44:05 +09:00
Bill Currie
034139b806
Move some code around so it's more accessible.
2012-10-27 11:43:29 +09:00
Bill Currie
e866619de6
Output basic block flow diagrams to files.
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The output can be controlled via --block-dot (not yet documented). The
files a named <sourcefile>.<function>.<stage>.dot. Currently, stage will be
one of "initial" (after expression to statement conversion), "thread"
(after jump threading), "dead" (after dead block removal), "final" (final
state before actual code emission).
2012-05-04 09:45:51 +09:00
Bill Currie
bc1b483525
Nuke the rcsid stuff.
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It's pretty useless in git.
2012-04-22 10:56:32 +09:00
Bill Currie
8d3508cf20
Allocate space for temp defs using size rather than type.
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Statement operands throw away the high level type information, so store
type size in the operand and use this size for allocating space for temps
rather than using the low-level type.
2011-03-23 21:32:14 +09:00
Bill Currie
d937172243
Create and use alias operands for alias expressions.
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This avoids the alias expression modifying the operand used in other
expressions.
2011-03-03 13:46:07 +09:00
Bill Currie
0d5ab6600d
Store the source expression in a statement.
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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
90a2738459
Add the label to the block to which it refers.
2011-01-28 11:41:53 +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
3b462e16cf
Produce flow diagrams of the basic blocks.
2011-01-22 11:40:53 +09:00
Bill Currie
16e013ff5d
Allow the operand to override the symbol's type.
2011-01-21 10:56:32 +09:00
Bill Currie
b5424bca7d
Start work on getting expressions converted to internal statements.
2011-01-19 15:47:45 +09:00
