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665 Commits

Author SHA1 Message Date
Alkis Evlogimenos
e7bbd1c2fb Add memory operand folding for CMP{rm,mr,mi}{8,16,32}, INCm{8,16,32} 
and DECm{8,16,32} instructions.

llvm-svn: 11545
 2004-02-17 08:49:20 +00:00
Alkis Evlogimenos
d7e3cc8d65 Add CMP{rm,mr,mi}{8,16,32}, INCm{8,16,32} and DECm{8,16,32} instructions. 
llvm-svn: 11544
 2004-02-17 08:49:00 +00:00
Alkis Evlogimenos
638db7b5aa Add SUB{rm,mr,mi}{8,16,32} instructions. 
llvm-svn: 11543
 2004-02-17 08:17:40 +00:00
Alkis Evlogimenos
5aa39e1583 Add support for folding memory operands for ADC, SBB and SUB instructions. 
llvm-svn: 11541
 2004-02-17 08:08:51 +00:00
Alkis Evlogimenos
28691e063b Add support for ADC{rm.mr}32 and SBB{rm,mr}32. 
llvm-svn: 11540
 2004-02-17 08:06:31 +00:00
Chris Lattner
eb1428d581 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...

llvm-svn: 11539
 2004-02-17 08:03:47 +00:00
Alkis Evlogimenos
19248dd757 Add support for folding memory operands in MOVri{8,16,32} instructions. 
llvm-svn: 11538
 2004-02-17 07:47:20 +00:00
Chris Lattner
c4ea4d12bf Expand the repertoire of the forms we can print and encode. 
llvm-svn: 11537
 2004-02-17 07:40:44 +00:00
Chris Lattner
029dec8f3e 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.

llvm-svn: 11536
 2004-02-17 07:36:32 +00:00
Chris Lattner
a9493ad718 Add an option to disable spill fusing in the X86 backend 
llvm-svn: 11531
 2004-02-17 06:30:34 +00:00
Chris Lattner
d4b2f4ef32 Fix the mneumonics for the mov instructions to have the source and destination 
order in the correct sense!! Arg!

llvm-svn: 11530
 2004-02-17 06:28:19 +00:00
Chris Lattner
5757579731 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!

llvm-svn: 11529
 2004-02-17 06:24:02 +00:00
Chris Lattner
4682990fa5 GRRR. Move instructions have swapped the order of the r/m operands. 
llvm-svn: 11528
 2004-02-17 06:20:20 +00:00
Chris Lattner
16666f8bd2 Rename MOVi[mr] instructions to MOV[rm]i 
llvm-svn: 11527
 2004-02-17 06:16:44 +00:00
Chris Lattner
1db99b1949 Whoops, got my cases swapped. 
llvm-svn: 11526
 2004-02-17 06:02:15 +00:00
Chris Lattner
e227ae6b88 Change to match the newer, simpler, interface 
llvm-svn: 11525
 2004-02-17 05:54:57 +00:00
Chris Lattner
b82bb37952 Add support for folding memory operands into AND and IMUL's 
llvm-svn: 11523
 2004-02-17 05:46:06 +00:00
Chris Lattner
48e19d8b8e Scrunchify code, by adding helpers. No functionality changes. 
llvm-svn: 11522
 2004-02-17 05:35:13 +00:00
Chris Lattner
9751eb8ab9 Add mem forms of AND instructions 
llvm-svn: 11521
 2004-02-17 05:25:50 +00:00
Alkis Evlogimenos
c4ec9111bb Add API to check and fold memory operands into instructions. 
llvm-svn: 11519
 2004-02-17 04:33:18 +00:00
Chris Lattner
3c514e8a54 Rename the IMULri* instructions to IMULrri, as they are actually three address 
instructions.  Add forms of these instructions that read from memory

llvm-svn: 11518
 2004-02-17 04:26:43 +00:00
Alkis Evlogimenos
501e24b28a Add peephole optimizations for ADD [MEM], IMM8 instructions. 
llvm-svn: 11511
 2004-02-16 23:50:18 +00:00
Alkis Evlogimenos
657876c656 Add two more variants of add. Update comments. 
llvm-svn: 11510
 2004-02-16 23:48:42 +00:00
Chris Lattner
d8cc48da34 Add some ADD instructions that take memory operands for Alkis 
llvm-svn: 11502
 2004-02-16 18:19:31 +00:00
Alkis Evlogimenos
84318d7bb6 Make dense maps keyed on physical registers smallerusing 
MRegisterInfo::getNumRegs() instead of
MRegisterInfo::FirstVirtualRegister.

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

llvm-svn: 11477
 2004-02-15 21:37:17 +00:00
Chris Lattner
af97b8450d Implement llvm.(frame|return)address(0) correctly. They are used by the LLVM JIT, among other 
applications

llvm-svn: 11459
 2004-02-15 01:04:03 +00:00
Alkis Evlogimenos
fc768e6db0 Fix problem in DEBUG code. I could be pointing past the end and 
dereferencing it causes an assertion error.

llvm-svn: 11458
 2004-02-15 00:46:41 +00:00
Chris Lattner
679c106ce3 Fix the 'have a framepointer' case, so that the frame pointer always points 
to the old saved EBP.

llvm-svn: 11455
 2004-02-15 00:15:37 +00:00
Alkis Evlogimenos
e8f9647831 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.

llvm-svn: 11453
 2004-02-15 00:03:15 +00:00
Chris Lattner
cc5bf36481 Add support for the 'pop' instruction 
llvm-svn: 11451
 2004-02-14 21:06:02 +00:00
Chris Lattner
3246911460 There is no reason to align the stack pointer if there are no callees of this 
function!

llvm-svn: 11450
 2004-02-14 20:11:07 +00:00
Chris Lattner
f28479d600 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

llvm-svn: 11448
 2004-02-14 19:49:54 +00:00
Chris Lattner
1248c8a7f7 finegrainify namespacification, fix 80col prob 
llvm-svn: 11445
 2004-02-14 06:00:36 +00:00
Chris Lattner
c87772961e Urg, right. These need an input value... 
llvm-svn: 11443
 2004-02-14 04:47:23 +00:00
Chris Lattner
69b716e81c Codegen llvm.memset into rep stos[bwd]. Simplify code for llvm.memcpy 
llvm-svn: 11442
 2004-02-14 04:46:05 +00:00
Chris Lattner
6890963e48 add 'rep stos[bwd]' instructions 
llvm-svn: 11441
 2004-02-14 04:45:37 +00:00
Alkis Evlogimenos
a31a767307 Use newly added next() and prior() utility functions. 
llvm-svn: 11430
 2004-02-14 01:18:34 +00:00
Chris Lattner
bc565b2a6c There is no need to emit a shift if the size is constant, which is common 
llvm-svn: 11420
 2004-02-13 23:36:47 +00:00
Alkis Evlogimenos
6d6ab846af Remove getAllocatedRegNum(). Use getReg() instead. 
llvm-svn: 11393
 2004-02-13 21:01:20 +00:00
Chris Lattner
d1c4f4c833 Add support for the rep movs[bwd] instructions, and emit them when code 
generating the llvm.memcpy intrinsic.

llvm-svn: 11351
 2004-02-12 17:53:22 +00:00
Alkis Evlogimenos
94cab18bdc 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().

llvm-svn: 11345
 2004-02-12 08:11:04 +00:00
Alkis Evlogimenos
b755d35fd2 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.

llvm-svn: 11340
 2004-02-12 02:27:10 +00:00
Chris Lattner
2a50f8218a s/getOpCode/getOpcode 
llvm-svn: 11332
 2004-02-11 19:26:28 +00:00
Chris Lattner
db2c8941a5 Add #include 
llvm-svn: 11285
 2004-02-10 21:18:55 +00:00
Chris Lattner
c9f1da7374 Remove uses of MachineOperand::isVirtualRegister 
llvm-svn: 11281
 2004-02-10 20:55:47 +00:00
Chris Lattner
d58b38eeca Don't use MachineOperator::is(Phys|Virt)Register 
llvm-svn: 11276
 2004-02-10 20:31:28 +00:00
Chris Lattner
421302bc54 Tighten up checks 
llvm-svn: 11274
 2004-02-10 20:25:13 +00:00
Chris Lattner
16690fad3d Adjust to the changed StructType interface. In particular, getElementTypes() is gone. 
llvm-svn: 11228
 2004-02-09 04:37:31 +00:00
Chris Lattner
8e4aa43710 Add a new (hidden) option that is useful for profiling. 
llvm-svn: 11218
 2004-02-09 01:47:10 +00:00
Alkis Evlogimenos
676e5b8997 Modify the two address instruction pass to remove the duplicate 
operand of the instruction and thus simplify the register allocation.

llvm-svn: 11124
 2004-02-04 22:17:40 +00:00