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532 Commits

Author SHA1 Message Date
Chris Lattner
7ca04097ad Reduce the number of pointless copies inserted due to constant pointer refs. 
Also, make an assertion actually fireable!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11713 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 17:35:42 +00:00
Chris Lattner
827832c705 Fix bug in previous checkout: leave the iterator at the first instruction 
AFTER the GEP that was emitted.  :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11712 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 17:05:38 +00:00
Chris Lattner
3f1e8e7ceb Completely rewrite how getelementptr instructions are expanded. This has two 
(minor) benefits right now:

1. An extra dummy MOVrr32 is gone.  This move would often be coallesced by
   both allocators anyway.
2. The code now uses the gep_type_iterator to walk the gep, which should future
   proof it a bit.  It still assumes that array indexes are Longs though.

These don't really justify rewriting the code.  The big benefit will come later
though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11710 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 07:04:00 +00:00
Alkis Evlogimenos
f216421181 When folding memory operands in machine instructions be careful to 
leave register operands with the same use/def flags as the original
instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11709 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 06:54:26 +00:00
Chris Lattner
14c6ef7ca1 Wow this is out of date. When we have _real_ code generator documentation, 
this should be folded into it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11705 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 05:53:54 +00:00
Chris Lattner
6d2fdcfb8a The two address pass cannot handle two addr instructions where one incoming 
value is a physreg and one is a virtreg.  For this reason, disable copy folding
entirely for physregs.  Also, use the new isMoveInstr target hook which gives us
folding of FP moves as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11700 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 04:44:58 +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
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
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
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
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
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
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
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
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
Chris Lattner
0e5b79c174 Implement llvm.(frame|return)address(0) correctly. They are used by the LLVM JIT, among other 
applications


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11459 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 01:04:03 +00:00
Alkis Evlogimenos
b929bca027 Fix problem in DEBUG code. I could be pointing past the end and 
dereferencing it causes an assertion error.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11458 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 00:46:41 +00:00
Chris Lattner
96c3d2e2e7 Fix the 'have a framepointer' case, so that the frame pointer always points 
to the old saved EBP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11455 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 00:15:37 +00:00
Alkis Evlogimenos
c81efdc59c Add back machine code deleter pass until we get a MachineCode pass 
that will be responsible for the creation of MachineFunctions and will
be required by all MachineFunctionPass passes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11453 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-15 00:03:15 +00:00
Chris Lattner
3193556387 Add support for the 'pop' instruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11451 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 21:06:02 +00:00
Chris Lattner
e9dd84ea8a There is no reason to align the stack pointer if there are no callees of this 
function!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11450 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 20:11:07 +00:00
Chris Lattner
bb07ef97cf The prologue/epilogue related method calls have no reason to return a value, 
make them return void.

This allows us to avoid some costly MBB.size() calls


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11448 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 19:49:54 +00:00
Chris Lattner
300d0eda6f finegrainify namespacification, fix 80col prob 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11445 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 06:00:36 +00:00