6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-21 03:29:40 +00:00
Code Issues Projects Releases Wiki Activity
10,630 Commits 39 Branches 0 Tags 277 MiB
c38aa6dd79
Commit Graph

5586 Commits

Author SHA1 Message Date
Chris Lattner
d10b5fd395 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!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11684 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 23:52:15 +00:00
Chris Lattner
4e46e320a5 Add two missing returns, which caused us to be very pessimistic about the 
printf and scanf families!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11683 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 23:27:09 +00:00
Alkis Evlogimenos
007726ca6f Some more statistics improvements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11676 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 20:53:26 +00:00
Alkis Evlogimenos
df158c7e3f Disambiguate statistic descriptions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11675 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 20:46:49 +00:00
Alkis Evlogimenos
cea4471120 Rename statistic and add another one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11674 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 20:43:08 +00:00
Chris Lattner
8ecc27e667 Add support for some string functions, the scanf family, and sprintf 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11673 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 20:27:11 +00:00
Alkis Evlogimenos
fa510c4af5 Fix crash in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11659 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 06:41:12 +00:00
Brian Gaeke
38ce7e57d4 Use backtrace() and include execinfo.h, if they were detected by autoconf. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11658 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 06:40:59 +00:00
Alkis Evlogimenos
537fa9838d Fix instruction numbering in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11655 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 06:29:51 +00:00
Alkis Evlogimenos
39a0d5c112 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11654 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 06:15:40 +00:00
Chris Lattner
f358c5ad15 It is totally unacceptable to print out (literally) millions of zeros when 
compiling 129.compress... so don't!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11649 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-20 05:49:22 +00:00
Chris Lattner
6559615fc4 Disable the stack trace thing until we can get an autoconf test for it. This 
call breaks on sparcs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11635 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 21:21:23 +00:00
Chris Lattner
982774cbeb Implement new function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11631 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 20:03:14 +00:00
Alkis Evlogimenos
d195e99bc8 Fix RA::verifyAssignment() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11629 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 19:24:17 +00:00
Chris Lattner
d368c6163a Fix problem fusing spill code into instructions: we didn't update the live 
variable information to take into account the change of instruction
address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11628 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 18:34:02 +00:00
Chris Lattner
a96478d7d6 Fix an iterator invalidation problem. :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11627 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 18:32:29 +00:00
Chris Lattner
5ed001b6af Add method to update livevar when an instruction moves 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11625 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 18:28:02 +00:00
Chris Lattner
8517e1f0be 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11623 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 16:17:08 +00:00
Chris Lattner
5e61fa9519 Add a MachineBasicBlock::getParent() method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11622 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 16:13:54 +00:00
Alkis Evlogimenos
1d29a6d6c7 Make ToolExecutionError inherit std::exception and implement its 
interface: getMessage() is gone, use what() instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11621 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 07:39:26 +00:00
Alkis Evlogimenos
280f9c939d Print stacktrace in STDERR before dying on a fatal signal. Currently 
the symbols are not demangled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11620 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 07:36:35 +00:00
Alkis Evlogimenos
2acef2da06 Rename reloads/spills to loads/stores. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11619 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-19 06:19:09 +00:00
Chris Lattner
9cbbee332f Add support for just running the code generator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11611 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 23:24:41 +00:00
Alkis Evlogimenos
779e640657 Implement assignment correctness verification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11609 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 23:15:23 +00:00
Alkis Evlogimenos
52f8f56ef4 Move unused typedefs in private section. Add method to return interval 
given a register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11608 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 23:14:52 +00:00
Chris Lattner
a3de11783f indent correctly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11601 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 20:58:00 +00:00
Chris Lattner
722ca71285 Don't yell. BUGPOINT should yell, not the tool runner :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11600 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 20:57:38 +00:00
Chris Lattner
89bf9ea65e If there is an error running a tool, include the error message (e.g. assertion failure) in the exception 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11597 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 20:38:00 +00:00
Chris Lattner
8c56be5e2b When an error occurs executing a tool, we now throw an exception instead 
of calling exit(1).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11593 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 20:21:57 +00:00
Chris Lattner
e6d04f1a99 Eliminate operator[] is deprecated warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11578 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 16:43:51 +00:00
Chris Lattner
fdc01cedd4 Fix deprecated operator[] warnings 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11577 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 16:38:18 +00:00
Alkis Evlogimenos
e9118f3694 Fix argument size for MOVSX and MOVZX instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11576 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 16:20:40 +00:00
Alkis Evlogimenos
23c114fd3b Be more agressive when joining ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11575 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 04:38:37 +00:00
Alkis Evlogimenos
99d9923608 Fix overly conservative spill interval computation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11574 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 03:35:38 +00:00
Alkis Evlogimenos
3a9986f5d8 Beautify debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11573 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-18 00:35:06 +00:00
Chris Lattner
57cb9883aa Fix PR245: Linking weak and strong global variables is dependent on link order 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11565 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 21:56:04 +00:00
Chris Lattner
28a631d37e When we complete the bottom-up pass, make sure to merge the globals in 'main' into 
the globals graph.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11562 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 19:06:47 +00:00
Chris Lattner
cc0d2f586f Add support for GlobalAddress's for alkis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11560 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 18:23:55 +00:00
Alkis Evlogimenos
9b9b7fc28d These store to memory too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11558 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 17:53:48 +00:00
Chris Lattner
56ddada278 Remove the -disable-kill option. The register allocator is buggy with it, 
and it was only for debugging in the first place.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11557 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 17:49:10 +00:00
Chris Lattner
acce13e4cc These store to memory, not read from it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11556 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 17:46:50 +00:00
Alkis Evlogimenos
d886ed99fb Instructiosn with 1 memory operand have 4 operands in our 
representation.. duh!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11554 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:58:13 +00:00
Alkis Evlogimenos
f41dadafae Align case statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11552 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:50:41 +00:00
Alkis Evlogimenos
14ffe75c9c Add TEST and XCHG memory operand support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11550 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:48:42 +00:00
Alkis Evlogimenos
68bff8e15d Add OR and XOR memory operand support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11549 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:33:14 +00:00
Alkis Evlogimenos
e287a00440 Peephole optimize SUBmi{16,32} into SUBmi{16,32}b when immediate is 8 
bits wide.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11548 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:14:29 +00:00
Alkis Evlogimenos
cacca82833 ADDmi{16,32} should be in the next case statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11547 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 15:10:11 +00:00
Alkis Evlogimenos
a7be982e72 Add memory operand folding support for MUL, DIV, IDIV, NEG, NOT, 
MOVSX, and MOVZX.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11546 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 09:14:23 +00:00
Alkis Evlogimenos
89b0214b76 Add memory operand folding for CMP{rm,mr,mi}{8,16,32}, INCm{8,16,32} 
and DECm{8,16,32} instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11545 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:49:20 +00:00
Alkis Evlogimenos
509d6d65b5 Add CMP{rm,mr,mi}{8,16,32}, INCm{8,16,32} and DECm{8,16,32} instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11544 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:49:00 +00:00
Alkis Evlogimenos
503770cfc3 Add SUB{rm,mr,mi}{8,16,32} instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11543 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:17:40 +00:00
Chris Lattner
11390e76e7 Add support to the local allocator for fusing spill code into the instructions 
that need them.  This is very useful on CISCy targets like the X86 because it
reduces the total spill pressure, and makes better use of it's (large)
instruction set.  Though the X86 backend doesn't know how to rewrite many
instructions yet, this already makes a substantial difference on 176.gcc for
example:

Before:
Time:
   8.0099 ( 31.2%)   0.0100 ( 12.5%)   8.0199 ( 31.2%)   7.7186 ( 30.0%)  Local Register Allocator

Code quality:
734559 asm-printer           - Number of machine instrs printed
111395 ra-local              - Number of registers reloaded
 79902 ra-local              - Number of registers spilled
231554 x86-peephole          - Number of peephole optimization performed

After:
Time:
   7.8700 ( 30.6%)   0.0099 ( 19.9%)   7.8800 ( 30.6%)   7.7892 ( 30.2%)  Local Register Allocator
Code quality:
733083 asm-printer           - Number of machine instrs printed
  2379 ra-local              - Number of reloads fused into instructions
109046 ra-local              - Number of registers reloaded
 79881 ra-local              - Number of registers spilled
230658 x86-peephole          - Number of peephole optimization performed

So by fusing 2300 instructions, we reduced the  static number of instructions
by 1500, and reduces the number of peepholes (and thus the work) by about 900.
This also clearly reduces the number of reload/spill instructions that are
emitted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11542 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:09:40 +00:00
Alkis Evlogimenos
18bd7bb4d4 Add support for folding memory operands for ADC, SBB and SUB instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11541 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:08:51 +00:00
Alkis Evlogimenos
69da6dba79 Add support for ADC{rm.mr}32 and SBB{rm,mr}32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11540 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:06:31 +00:00
Chris Lattner
ee0919bb10 Add a (hidden) option to print instructions that fail to fuse. It's looking 
like compares and test's would be the next huge win...


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11539 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 08:03:47 +00:00
Alkis Evlogimenos
17dc674c13 Add support for folding memory operands in MOVri{8,16,32} instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11538 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 07:47:20 +00:00
Chris Lattner
5b67252620 Expand the repertoire of the forms we can print and encode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11537 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 07:40:44 +00:00
Chris Lattner
651fd55d5f Disable this peephole for now. We can't keep track of the fact that the immediate is 8 bits, 
but the memory reference is full sized.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11536 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 07:36:32 +00:00
Chris Lattner
cdee28724e Fix a bug in my previous refactoring change... arg! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11535 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 07:02:17 +00:00
Chris Lattner
9915cd9e9f The C backend is no longer in llvm-dis, it's in llc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11533 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:40:06 +00:00
Chris Lattner
a7660be6c2 Add an option to disable spill fusing in the X86 backend 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11531 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:30:34 +00:00
Chris Lattner
e87331d11d Fix the mneumonics for the mov instructions to have the source and destination 
order in the correct sense!! Arg!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11530 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:28:19 +00:00
Chris Lattner
7ddc3fbd22 Fix the last crimes against nature that used the 'ir' ordering to use the 
'ri' ordering instead... no it's not possible to store a register into an
immediate!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11529 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:24:02 +00:00
Chris Lattner
f120ebbf8a GRRR. Move instructions have swapped the order of the r/m operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11528 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:20:20 +00:00
Chris Lattner
6e173a0d9c Rename MOVi[mr] instructions to MOV[rm]i 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11527 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:16:44 +00:00
Chris Lattner
90c38c8141 Whoops, got my cases swapped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11526 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 06:02:15 +00:00
Chris Lattner
5a051f65d3 Change to match the newer, simpler, interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11525 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:54:57 +00:00
Chris Lattner
0f9c491abc Add support for folding memory operands into AND and IMUL's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11523 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:46:06 +00:00
Chris Lattner
7c035b73a4 Scrunchify code, by adding helpers. No functionality changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11522 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:35:13 +00:00
Chris Lattner
4ff7876c64 Add mem forms of AND instructions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11521 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:25:50 +00:00
Alkis Evlogimenos
7093d37304 Add LiveIntervals::Interval::empty() member function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11520 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 05:14:37 +00:00
Alkis Evlogimenos
b499866c05 Add API to check and fold memory operands into instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11519 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 04:33:18 +00:00
Chris Lattner
55b5481255 Rename the IMULri* instructions to IMULrri, as they are actually three address 
instructions.  Add forms of these instructions that read from memory


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11518 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 04:26:43 +00:00
Chris Lattner
1e3812c1c5 Once we have a way to fold spill code reloads into instructions, we have a way to use it. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11517 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 04:08:37 +00:00
Alkis Evlogimenos
355a724bd8 Fix spilled interval update. It was too conservative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11516 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 04:04:20 +00:00
Chris Lattner
42e0a8fded Refactor code a bit. No functionality changes, though the comment hints at things to come. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11515 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 03:57:19 +00:00
Chris Lattner
ac89164fa2 Adjust to recent changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11514 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-17 03:03:47 +00:00
Alkis Evlogimenos
31bbb5190b Add peephole optimizations for ADD [MEM], IMM8 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11511 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 23:50:18 +00:00
Alkis Evlogimenos
7271e0e107 Add two more variants of add. Update comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11510 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 23:48:42 +00:00
Chris Lattner
304e143b16 Only spit out warning for functions that take pointers, not for sin and the like 
Add more special case handling for stdio functions.  I feel dirty, how about you?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11506 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 22:57:19 +00:00
Chris Lattner
2e9bb1a88e Move the folding of gep null, 0, 0, 0 to a place where it can be shared and 
enjoyed by all, fixing a fixme.  Add an assert


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11505 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 20:46:13 +00:00
Chris Lattner
eee33b2691 memset and bcopy and now unified by the llvm.memset intrinsic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11503 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 18:37:40 +00:00
Chris Lattner
e0f636a068 Add some ADD instructions that take memory operands for Alkis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11502 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 18:19:31 +00:00
Alkis Evlogimenos
aad5c05051 Add LeakDetection to MachineInstr. 
Move out of line member functions of MachineBasicBlock to
MachineBasicBlock.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11497 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 07:17:43 +00:00
Chris Lattner
19831ec853 Implement test/Regression/Transforms/SimplifyCFG/UncondBranchToReturn.ll, 
see the testcase for the reasoning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11496 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 06:35:48 +00:00
Chris Lattner
7059f2e76b Fold PHI nodes of constants which are only used by a single cast. This implements 
phi.ll:test4


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11494 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 05:07:08 +00:00
Chris Lattner
26ca7e145e Teach LLVM to unravel the "swap idiom". This implements: 
Regression/Transforms/InstCombine/xor.ll:test20


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11492 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 03:54:20 +00:00
Chris Lattner
c317d39887 Implement Transforms/InstCombine/xor.ll:test19 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11490 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-16 01:20:27 +00:00
Chris Lattner
8709927af8 Fix a bug in the recent rewrite of the leakdetector that caused all of the 
nightly tests to be really messed up.  The problem was that the new leakdetector
was depending on undefined behavior: the order of destruction of static objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11488 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 23:33:48 +00:00
Chris Lattner
e42cde2a14 Now that the lowerinvoke pass inserts calls to llvm.setjmp/llvm.longjmp, some 
hacks can be banished.  Also, this gives us the opportunity to emit special code
for the setjmp/longjmps which alows the elimination of one GCC warning for every
setjmp/longjmp site (which is often THOUSANDS in C++ programs).  Yaay!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11484 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 22:51:47 +00:00
Chris Lattner
9b700f7951 By default, llvm.setjmp/llvm.longjmp intrinsics get lowered to their libc counterparts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11483 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 22:24:51 +00:00
Chris Lattner
860a16143c Instead of producing calls to setjmp/longjmp, produce uses of the 
llvm.setjmp/llvm.longjmp intrinsics.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11482 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 22:24:27 +00:00
Chris Lattner
588e72db75 Refactor code. Now the intrinsic lowering pass tries to recycle preexisting 
prototypes, even if they don't precisely match what it would prefer to use.
This fixes: CBackend/2004-02-15-PreexistingExternals.llx compiling it into:

  ltmp_0_30 = memcpy(l14_C, 4u, 17);
  ltmp_1_30 = memcpy(((int *)l27_A), ((unsigned )(long)l27_B), ((int )123u));

instead of:

  ltmp_0_30 = memcpy(l14_C, 4u, 17);
  ltmp_1_27 = l43_memcpy(l27_A, l27_B, 123u);

Which does the wrong thing as you could imagine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11481 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 22:16:39 +00:00
Alkis Evlogimenos
f11800b718 This pass should not require phi elimination or live variable 
analysis. It should only preserve them and update LiveVariables if it
already ran.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11479 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 21:50:32 +00:00
Chris Lattner
5aaf1d2820 Finegrainify namespacification 
Remove one of the operands of a two operand instruction


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11478 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 21:38:28 +00:00
Alkis Evlogimenos
859a18b583 Make dense maps keyed on physical registers smallerusing 
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.

Also use MRegisterInfo::is{Physical,Virtual}Register where
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11477 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 21:37:17 +00:00
Alkis Evlogimenos
843b160a20 Eliminate the use of spill (reserved) registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11476 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 10:24:21 +00:00
Chris Lattner
de512b5b2e Adjustments to support the new ConstantAggregateZero class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11474 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 05:55:15 +00:00
Chris Lattner
cfb0fd2ce8 Add support for the new ConstantAggregateZero class 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11473 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 05:54:27 +00:00
Chris Lattner
dd2c82a427 Make the JIT zero out globals with memset instead of an element at a time. This 
should speed it up a bit on a lot of programs


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11472 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 05:54:06 +00:00