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70 Commits

Author SHA1 Message Date
Alkis Evlogimenos
08388a4787 Add memory operand folding support for the SETcc family of 
instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11907 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 16:13:37 +00:00
Alkis Evlogimenos
e56508eb7e Add memory operand folding support for SHLD and SHRD instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11905 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 15:03:18 +00:00
Alkis Evlogimenos
58ec60589b Add memory operand folding support for SHL, SHR and SAR, SHLD instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11903 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-27 09:28:43 +00:00
Alkis Evlogimenos
890f92328d Move MOTy::UseType enum into MachineOperand. This eliminates the 
switch statements in the constructors and simplifies the
implementation of the getUseType() member function. You will have to
specify defs using MachineOperand::Def instead of MOTy::Def though
(similarly for Use and UseAndDef).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11715 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-22 19:23:26 +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
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
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
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
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
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
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
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
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
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
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
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
Alkis Evlogimenos
f81af21caf Use newly added next() and prior() utility functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11430 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-14 01:18:34 +00:00
Alkis Evlogimenos
024126ee23 Change interface so that we can add to the end of a basic block 
without getting an assertion from ilist that we are dereferencing
ilist<T>::end().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11345 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 08:11:04 +00:00
Alkis Evlogimenos
c0b9dc5be7 Change MachineBasicBlock's vector of MachineInstr pointers into an 
ilist of MachineInstr objects. This allows constant time removal and
insertion of MachineInstr instances from anywhere in each
MachineBasicBlock. It also allows for constant time splicing of
MachineInstrs into or out of MachineBasicBlocks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11340 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-12 02:27:10 +00:00
Alkis Evlogimenos
14be64018f Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11124 91177308-0d34-0410-b5e6-96231b3b80d8
 2004-02-04 22:17:40 +00:00
Brian Gaeke
d0fde30ce8 Put all LLVM code into the llvm namespace, as per bug 109. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9903 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-11 22:41:34 +00:00
Alkis Evlogimenos
e668dab5b3 Change all machine basic block modifier functions in MRegisterInfo to 
return the number of instructions added to/removed from the basic block
passed as their first argument.

Note: This is only needed because we use a std::vector instead of an
ilist to keep MachineBasicBlock instructions. Inserting an instruction
to a MachineBasicBlock invalidates all iterators to the basic
block. The return value can be used to update an index to the machine
basic block instruction vector and circumvent the iterator elimination
problem but this is really not needed if we move to a better
representation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9704 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-11-04 22:57:09 +00:00
John Criswell
b576c94c15 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9298 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-20 19:43:21 +00:00
Chris Lattner
c2b81f69ed Output a contorted sequence of instructions to make sure that we don't access 
off the bottom of the stack.  This fixes PR#41


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9114 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-14 19:09:05 +00:00
Chris Lattner
d5b7c47b27 Disable the leaf function optimization, which is apparently not legal on 
X86/linux.  :(  The problem is that a signal delivered while the function
is executing could clobber the functions stack.  This is a partial fix
for PR41.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9113 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-10-14 18:52:41 +00:00
Misha Brukman
5560c9d49c Spell `necessary' correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7944 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-18 14:43:39 +00:00
Chris Lattner
6770aedf7f Rename register classes to be upper case to make it obvious that they are X86 
specific in the tree patterns


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7578 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-04 20:58:29 +00:00
Chris Lattner
7ad3e063f5 Switch over to TableGen generated register file description 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7511 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-08-03 15:48:14 +00:00
Chris Lattner
c8c377d111 Move "register flags" definition the type of registers to be fully fledged 
value types


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7377 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-07-29 05:14:16 +00:00
Chris Lattner
ddd5b417c6 Rename -no-* to -disable-* 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5642 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-02-26 20:00:41 +00:00
Chris Lattner
f158da2f78 Implement code to keep the stack pointer aligned to an 8 byte boundary. 
This improves the performance of the power benchmark by a few percent.
This will be neccesary for SSE code, which requires 16 byte alignment of
the stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5320 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-16 02:20:12 +00:00
Chris Lattner
eafa423881 Handle frame offset due to return address pushed on the stack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5319 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-15 22:57:35 +00:00
Chris Lattner
d264bec88a * Move frame and constant pool indexes to first argument of memory reference 
so we can put an offset in there as well...
* Fix long/ulong stuff


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5231 91177308-0d34-0410-b5e6-96231b3b80d8
 2003-01-13 00:50:33 +00:00
Chris Lattner
aa09b75d22 Rename FunctionFrameInfo to MachineFrameInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5201 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 21:08:28 +00:00
Chris Lattner
3c1c03d7a7 *** Implement frame pointer elimination on X86! 
* Include contents of X86RegisterClasses.cpp into here
* Adjustments to register api to work with new frame manager
* Eliminate moveImm2Reg, getFramePointer, and getStackPointer
* Cleanup and simplify prolog/epilog code generation
* Prolog/epilog are MUCH more efficient now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5186 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-28 20:32:28 +00:00
Chris Lattner
8e58179048 New simpler spill interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5148 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-25 05:07:09 +00:00
Chris Lattner
fc1c705965 Fix compilation on gcc 2.96 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5116 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-23 23:46:55 +00:00
Chris Lattner
6eaa46956a Fix warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5109 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-20 04:13:28 +00:00
Chris Lattner
79de6319b1 Update to use new interface for register info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5098 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 04:19:17 +00:00
Chris Lattner
3bbe7cc51d Round number of bytes allocated on the stack up to a multiple of 4 so that the 
stack remains aligned


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5095 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-12-17 03:15:26 +00:00