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Commit Graph

5483 Commits

Author SHA1 Message Date
Chris Lattner
573441bfbd Use isNull instead of getNode() to test for existence of a node, this is cheaper.
FIX MAJOR BUG, whereby we didn't merge null edges correctly. Correcting this
fixes poolallocation on 175.vpr, and possibly others.

llvm-svn: 11695
2004-02-22 00:53:54 +00:00
Chris Lattner
7bff00313e Fix an iterator invalidation problem which was causing some nodes to not be
correctly merged over!

llvm-svn: 11693
2004-02-21 22:28:26 +00:00
Chris Lattner
458704f675 Use handy method
llvm-svn: 11692
2004-02-21 22:27:31 +00:00
Misha Brukman
642275dc4e `cat' is usually in /bin, not /usr/bin, at least on our systems.
llvm-svn: 11690
2004-02-21 21:51:41 +00:00
Chris Lattner
7448a9867b When printing a stack trace, demangle it if possible. Since we are potentially
in a signal handler, allocating memory or doing other unsafe things is bad,
which means we should do it in a different process.

llvm-svn: 11689
2004-02-21 21:06:19 +00:00
Alkis Evlogimenos
e39c21cc93 Make 'fold' statistic's description the same in both allocators.
llvm-svn: 11687
2004-02-21 18:07:33 +00:00
Chris Lattner
dacc6a7448 Instead of cloning the globals for main into the globals graph at the end of
BU propagation, clone the globals into the GG of EACH FUNCTION that finishes
processing!  The GlobalsGraph *must* include all globals and effects from
all functions in the program.  Fixing this makes pool allocation work better
on 175.vpr, but it still ultimately crashes.

llvm-svn: 11686
2004-02-21 00:30:28 +00:00
Chris Lattner
0f9200e5a5 There is no need to merge the globals graph into the function graphs at the
end of the BU and CBU passes.  The globals will be marked incomplete, so it
doesn't matter if they are missing some info, and merging isn't guaranteed
to bring everything in anyway!

llvm-svn: 11684
2004-02-20 23:52:15 +00:00
Chris Lattner
31f8fa66cb Add two missing returns, which caused us to be very pessimistic about the
printf and scanf families!

llvm-svn: 11683
2004-02-20 23:27:09 +00:00
Alkis Evlogimenos
43431e117e Some more statistics improvements.
llvm-svn: 11676
2004-02-20 20:53:26 +00:00
Alkis Evlogimenos
6d57ed784f Disambiguate statistic descriptions.
llvm-svn: 11675
2004-02-20 20:46:49 +00:00
Alkis Evlogimenos
70f547d06e Rename statistic and add another one.
llvm-svn: 11674
2004-02-20 20:43:08 +00:00
Chris Lattner
4653c4cb50 Add support for some string functions, the scanf family, and sprintf
llvm-svn: 11673
2004-02-20 20:27:11 +00:00
Alkis Evlogimenos
168e4bf455 Fix crash in debug output.
llvm-svn: 11659
2004-02-20 06:41:12 +00:00
Brian Gaeke
688940d763 Use backtrace() and include execinfo.h, if they were detected by autoconf.
llvm-svn: 11658
2004-02-20 06:40:59 +00:00
Alkis Evlogimenos
16744f2860 Fix instruction numbering in debug output.
llvm-svn: 11655
2004-02-20 06:29:51 +00:00
Alkis Evlogimenos
f32239a5c6 Too many changes in one commit:
1. LiveIntervals now implement a 4 slot per instruction model. Load,
   Use, Def and a Store slot. This is required in order to correctly
   represent caller saved register clobbering on function calls,
   register reuse in the same instruction (def resues last use) and
   also spill code added later by the allocator. The previous
   representation (2 slots per instruction) was insufficient and as a
   result was causing subtle bugs.

2. Fixes in spill code generation. This was the major cause of
   failures in the test suite.

3. Linear scan now has core support for folding memory operands. This
   is untested and not enabled (the live interval update function does
   not attempt to fold loads/stores in instructions).

4. Lots of improvements in the debugging output of both live intervals
   and linear scan. Give it a try... it is beautiful :-)

In summary the above fixes all the issues with the recent reserved
register elimination changes and get the allocator very close to the
next big step: folding memory operands.

llvm-svn: 11654
2004-02-20 06:15:40 +00:00
Chris Lattner
b24f30de8d It is totally unacceptable to print out (literally) millions of zeros when
compiling 129.compress... so don't!

llvm-svn: 11649
2004-02-20 05:49:22 +00:00
Chris Lattner
0d3df27b4c Disable the stack trace thing until we can get an autoconf test for it. This
call breaks on sparcs

llvm-svn: 11635
2004-02-19 21:21:23 +00:00
Chris Lattner
6deffd7154 Implement new function
llvm-svn: 11631
2004-02-19 20:03:14 +00:00
Alkis Evlogimenos
eed4727191 Fix RA::verifyAssignment()
llvm-svn: 11629
2004-02-19 19:24:17 +00:00
Chris Lattner
c37073f249 Fix problem fusing spill code into instructions: we didn't update the live
variable information to take into account the change of instruction
address.

llvm-svn: 11628
2004-02-19 18:34:02 +00:00
Chris Lattner
266206caed Fix an iterator invalidation problem. :(
llvm-svn: 11627
2004-02-19 18:32:29 +00:00
Chris Lattner
6b0030105e Add method to update livevar when an instruction moves
llvm-svn: 11625
2004-02-19 18:28:02 +00:00
Chris Lattner
8a9be6b652 Fix a __LONG__ term annoyance of mine: symbolic registers weren't being printed
by operator<< on MachineInstr's, and looking up what register "24" is all of the
time was greatly annoying.

llvm-svn: 11623
2004-02-19 16:17:08 +00:00
Chris Lattner
436ab13009 Add a MachineBasicBlock::getParent() method
llvm-svn: 11622
2004-02-19 16:13:54 +00:00
Alkis Evlogimenos
59c646da40 Make ToolExecutionError inherit std::exception and implement its
interface: getMessage() is gone, use what() instead.

llvm-svn: 11621
2004-02-19 07:39:26 +00:00
Alkis Evlogimenos
fbaf7b3944 Print stacktrace in STDERR before dying on a fatal signal. Currently
the symbols are not demangled.

llvm-svn: 11620
2004-02-19 07:36:35 +00:00
Alkis Evlogimenos
68f40cbfd3 Rename reloads/spills to loads/stores.
llvm-svn: 11619
2004-02-19 06:19:09 +00:00
Chris Lattner
2a293313ca Add support for just running the code generator
llvm-svn: 11611
2004-02-18 23:24:41 +00:00
Alkis Evlogimenos
310f641c9c Implement assignment correctness verification.
llvm-svn: 11609
2004-02-18 23:15:23 +00:00
Chris Lattner
5a22f3a7d1 indent correctly
llvm-svn: 11601
2004-02-18 20:58:00 +00:00
Chris Lattner
eddc6ab2e7 Don't yell. BUGPOINT should yell, not the tool runner :)
llvm-svn: 11600
2004-02-18 20:57:38 +00:00
Chris Lattner
a52c617fd7 If there is an error running a tool, include the error message (e.g. assertion failure) in the exception
llvm-svn: 11597
2004-02-18 20:38:00 +00:00
Chris Lattner
72ce97cc95 When an error occurs executing a tool, we now throw an exception instead
of calling exit(1).

llvm-svn: 11593
2004-02-18 20:21:57 +00:00
Chris Lattner
e672426e5d Eliminate operator[] is deprecated warnings
llvm-svn: 11578
2004-02-18 16:43:51 +00:00
Chris Lattner
8acab89631 Fix deprecated operator[] warnings
llvm-svn: 11577
2004-02-18 16:38:18 +00:00
Alkis Evlogimenos
7ec1bad952 Fix argument size for MOVSX and MOVZX instructions.
llvm-svn: 11576
2004-02-18 16:20:40 +00:00
Alkis Evlogimenos
c394f7803b Be more agressive when joining ranges.
llvm-svn: 11575
2004-02-18 04:38:37 +00:00
Alkis Evlogimenos
5c90efed55 Fix overly conservative spill interval computation.
llvm-svn: 11574
2004-02-18 03:35:38 +00:00
Alkis Evlogimenos
7290ef1f5c Beautify debug output.
llvm-svn: 11573
2004-02-18 00:35:06 +00:00
Chris Lattner
4fa2e7a67f Fix PR245: Linking weak and strong global variables is dependent on link order
llvm-svn: 11565
2004-02-17 21:56:04 +00:00
Chris Lattner
d9e1a49650 When we complete the bottom-up pass, make sure to merge the globals in 'main' into
the globals graph.

llvm-svn: 11562
2004-02-17 19:06:47 +00:00
Chris Lattner
f58d2dd6cf Add support for GlobalAddress's for alkis
llvm-svn: 11560
2004-02-17 18:23:55 +00:00
Alkis Evlogimenos
c6f0651e5c These store to memory too.
llvm-svn: 11558
2004-02-17 17:53:48 +00:00
Chris Lattner
ea22a3de13 Remove the -disable-kill option. The register allocator is buggy with it,
and it was only for debugging in the first place.

llvm-svn: 11557
2004-02-17 17:49:10 +00:00
Chris Lattner
88271db3bc These store to memory, not read from it.
llvm-svn: 11556
2004-02-17 17:46:50 +00:00
Alkis Evlogimenos
0528c59353 Instructiosn with 1 memory operand have 4 operands in our
representation.. duh!

llvm-svn: 11554
2004-02-17 15:58:13 +00:00
Alkis Evlogimenos
b1a61b72f2 Align case statements.
llvm-svn: 11552
2004-02-17 15:50:41 +00:00
Alkis Evlogimenos
b815fd46ec Add TEST and XCHG memory operand support.
llvm-svn: 11550
2004-02-17 15:48:42 +00:00