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181 Commits

Author SHA1 Message Date
Nate Begeman
e5314eb2c2 First round of support for doing scalar FP using the SSE2 ISA extension and 
XMM registers.  There are many known deficiencies and fixmes, which will be
addressed ASAP.  The major benefit of this work is that it will allow the
LLVM register allocator to allocate FP registers across basic blocks.

The x86 backend will still default to x87 style FP.  To enable this work,
you must pass -enable-sse-scalar-fp and either -sse2 or -sse3 to llc.

An example before and after would be for:
double foo(double *P) { double Sum = 0; int i; for (i = 0; i < 1000; ++i)
                        Sum += P[i]; return Sum; }

The inner loop looks like the following:
x87:
.LBB_foo_1:     # no_exit
        fldl (%esp)
        faddl (%eax,%ecx,8)
        fstpl (%esp)
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

SSE2:
        addsd (%eax,%ecx,8), %xmm0
        incl %ecx
        cmpl $1000, %ecx
        #FP_REG_KILL
        jne .LBB_foo_1  # no_exit

llvm-svn: 22340
 2005-07-06 18:59:04 +00:00
Chris Lattner
6dcae1c96e Tailcalls require stubs to be emitted. Otherwise, the compilation callback 
doesn't know who 'called' it.

llvm-svn: 22136
 2005-05-19 05:54:33 +00:00
Misha Brukman
bf3f6181fd * Remove trailing whitespace 
* Convert tabs to spaces

llvm-svn: 21426
 2005-04-21 23:38:14 +00:00
Chris Lattner
f4c8575535 There is no reason to emit function stubs for direct calls. 
llvm-svn: 18082
 2004-11-21 03:46:06 +00:00
Chris Lattner
4a340e281e Remove all JIT specific code and switch the code generator over to emitting 
relocations for global references.

llvm-svn: 18068
 2004-11-20 23:55:15 +00:00
Chris Lattner
0c79788bc4 Dont' forget to switch back to decimal output 
llvm-svn: 18010
 2004-11-19 20:57:07 +00:00
Chris Lattner
a7eec14b04 Fix a major bug in the signed shr code, which apparently only breaks 134.perl! 
llvm-svn: 17902
 2004-11-16 18:40:52 +00:00
Chris Lattner
41d31d7461 Remove a dead function, which died when we got GAS emission working (phwew, 
hold your nose!)

llvm-svn: 17869
 2004-11-16 04:34:29 +00:00
Chris Lattner
b378786c97 Implement a simple FIXME: if we are emitting a basic block address that has 
already been emitted, we don't have to remember it and deal with it later,
just emit it directly.

llvm-svn: 17868
 2004-11-16 04:30:51 +00:00
Chris Lattner
3f73c77ace * Merge some win32 ifdefs together 
* Get rid of "emitMaybePCRelativeValue", either we want to emit a PC relative
  value or not: drop the maybe BS.  As it turns out, the only places where
  the bool was a variable coming in, the bool was a dynamic constant.

llvm-svn: 17867
 2004-11-16 04:21:18 +00:00
Chris Lattner
3ed3e8669f Add debug-only=jit printout, so we see when lazily resolved symbols are 
set up.

llvm-svn: 17862
 2004-11-15 23:16:55 +00:00
John Criswell
97da76178c Fix compilation problem; make the cast and the LHS be the same type. 
llvm-svn: 17488
 2004-11-05 16:17:06 +00:00
Chris Lattner
499e1b16a7 Quiet VC++ warnings 
llvm-svn: 17484
 2004-11-05 04:50:59 +00:00
Chris Lattner
cac643c78f Improve compatibility with VC++, patch contributed by Morten Ofstad! 
llvm-svn: 17126
 2004-10-18 15:54:17 +00:00
Chris Lattner
bf114f32c0 Unify handling of constant pool indexes with the other code paths, allowing 
us to use index registers for CPI's

llvm-svn: 17082
 2004-10-17 07:49:45 +00:00
Chris Lattner
38de76365d Give the X86 JIT the ability to encode global+disp constants. Patch 
contributed by Jeff Cohen!

llvm-svn: 17010
 2004-10-15 04:53:13 +00:00
Misha Brukman
ec87a61944 Fix filename: Printer.cpp has become X86AsmPrinter.cpp 
llvm-svn: 16299
 2004-09-12 21:26:04 +00:00
Reid Spencer
c4abcbefb1 Changes For Bug 352 
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
 2004-09-01 22:55:40 +00:00
Chris Lattner
24279a8ac8 Remove dead method 
llvm-svn: 15647
 2004-08-11 02:26:39 +00:00
Chris Lattner
9bcf258cc3 Make sure to emit the immediate byte for instructions like: 
shrd [mem], reg, imm

This fixes the jit-ls failure on 186.crafty.

llvm-svn: 14914
 2004-07-17 20:26:14 +00:00
Chris Lattner
5ad9eaab1a Convert to the new TargetMachine interface. 
llvm-svn: 13952
 2004-06-02 05:55:25 +00:00
Brian Gaeke
e5736bf986 Don't keep track of references to LLVM BasicBlocks while emitting; use 
MachineBasicBlocks instead.

llvm-svn: 13568
 2004-05-14 06:54:58 +00:00
Brian Gaeke
0db103b4b3 Use emitWordAt() to emit forward-branch fixups. 
llvm-svn: 13120
 2004-04-23 17:11:16 +00:00
Chris Lattner
ecbade26d5 Add support for new instruction type 
llvm-svn: 12894
 2004-04-13 17:18:51 +00:00
Alkis Evlogimenos
085957be0b Add emitInstruction() API so that we can get the bytes of a simple instruction 
llvm-svn: 12252
 2004-03-09 03:34:53 +00:00
Alkis Evlogimenos
813daf05c3 Constify things a bit 
llvm-svn: 12251
 2004-03-09 03:30:12 +00:00
Alkis Evlogimenos
f208a0fd81 Each instruction now has both an ImmType and a MemType. This describes 
the size of the immediate and the memory operand on instructions that
use them. This resolves problems with instructions that take both a
memory and an immediate operand but their sizes differ (i.e. ADDmi32b).

llvm-svn: 11967
 2004-02-28 22:02:05 +00:00
Alkis Evlogimenos
56d357aa23 Rename MRMS[0-7]{r,m} to MRM[0-7]{r,m}. 
llvm-svn: 11921
 2004-02-27 18:55:12 +00:00
Chris Lattner
f58d2dd6cf Add support for GlobalAddress's for alkis 
llvm-svn: 11560
 2004-02-17 18:23:55 +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
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
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
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
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
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
Alkis Evlogimenos
41bd8284e3 Remove floating point killer pass. This is now implemented in the 
instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562
 2003-12-20 16:22:59 +00:00
Chris Lattner
ef1bfa35d0 Finally, _actually delete the machine code_ for a function, after it has 
been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559
 2003-12-20 10:20:19 +00:00
Chris Lattner
d3676d0774 A minor cleanup for better encapsulation 
llvm-svn: 10545
 2003-12-20 02:03:14 +00:00
Chris Lattner
1cb1efedb3 Rip JIT specific stuff out of TargetMachine, as per PR176 
llvm-svn: 10542
 2003-12-20 01:22:19 +00:00
John Criswell
93c209e4ac Modified cast so that it converts the int to a long before casting to 
a pointer.  This evades a warning emitted by GCC when we cast from
unsigned int (32 bit) to void * (64 bit) on SparcV9.

llvm-svn: 10435
 2003-12-12 19:57:48 +00:00
Chris Lattner
b750a0cf3a Implement the TargetMachine::getJITStubForFunction method for X86, finegrainify 
namespacification.

llvm-svn: 10430
 2003-12-12 07:11:18 +00:00
Brian Gaeke
d25f86d683 Put all LLVM code into the llvm namespace, as per bug 109. 
llvm-svn: 9903
 2003-11-11 22:41:34 +00:00
John Criswell
b402729b30 Added LLVM project notice to the top of every C++ source file. 
Header files will be on the way.

llvm-svn: 9298
 2003-10-20 19:43:21 +00:00
Chris Lattner
5a577c0b28 * Rename X86::IMULr16 -> X86::IMULrr16 
* Implement R1 = R2 * C where R1 and R2 are 32 or 16 bits. This avoids an
  extra copy into a register, reducing register pressure.

llvm-svn: 9278
 2003-10-20 03:42:58 +00:00
Brian Gaeke
edea9eca83 Fix typo in comment. 
llvm-svn: 9187
 2003-10-16 23:45:05 +00:00
Misha Brukman
56f7db4178 Spell `necessary' correctly. 
llvm-svn: 7944
 2003-08-18 14:43:39 +00:00
Brian Gaeke
299cf12f45 addPassesToJITCompile and addPassesToEmitMachineCode now take a 
FunctionPassManager, to support function-at-a-time compilation and
 emission of code.

llvm-svn: 7821
 2003-08-13 18:17:27 +00:00
Chris Lattner
17fc21b5fa This is the real fix for the previous register allocator problem. 
Physical registers should not float around.

llvm-svn: 7587
 2003-08-05 00:48:47 +00:00
Chris Lattner
25e28f61ab Set debug types 
llvm-svn: 7532
 2003-08-03 21:14:38 +00:00
Chris Lattner
1baa706ab7 Move DEBUG to Debug.h 
llvm-svn: 7497
 2003-08-01 22:21:34 +00:00
Chris Lattner
f0df04752d We don't modify the LLVM rep, remain const correct 
llvm-svn: 7345
 2003-07-26 23:06:00 +00:00
John Criswell
258dfc0319 Merged in autoconf branch. This provides configuration via the autoconf 
system.

llvm-svn: 7014
 2003-06-30 21:59:07 +00:00
Brian Gaeke
4681b27a92 Isolate machine-dependent use of <alloca.h> in "Support/Alloca.h", 
so that we can easily change its use to be conditional on the result of
an autoconf test later.

llvm-svn: 6723
 2003-06-16 21:54:01 +00:00
Chris Lattner
d4e4130f0a Fix warnings on Sparc 
llvm-svn: 6658
 2003-06-06 18:25:33 +00:00
Chris Lattner
437985e52c Add statistic for # machine instrs emitted 
Add GROSS HACK to get CompilationCallback to work when compiled in release mode

llvm-svn: 6646
 2003-06-06 04:00:05 +00:00
Chris Lattner
92fba99afb Add namespace comments for doxygen 
llvm-svn: 6581
 2003-06-03 15:31:23 +00:00
Misha Brukman
cb7c80a95c Eliminated a compiler warning due to casting to a different-sized datatype. 
llvm-svn: 6531
 2003-06-02 04:13:58 +00:00
Misha Brukman
8ce9f2956e Renamed MachineCodeEmitter.cpp -> X86CodeEmitter.cpp as it conflicts with the 
target-independent lib/CodeGen/MachineCodeEmitter.cpp; preserved CVS history.

llvm-svn: 6528
 2003-06-02 03:28:00 +00:00
Chris Lattner
be569e986d Move X86 specific code out of the JIT into the X86 backend 
llvm-svn: 6516
 2003-06-01 23:23:50 +00:00
Chris Lattner
99520168c9 This blank line has GOT to go. 
llvm-svn: 6057
 2003-05-09 03:28:13 +00:00
Chris Lattner
59c46ee655 IMPLICIT_DEF was not the beautiful elegant solution I thought it was going 
to be.  In fact, it made stuff worse.  :(

llvm-svn: 6013
 2003-05-07 19:21:28 +00:00
Chris Lattner
b6fab2a875 Don't have a cow with new pseudo instructions 
llvm-svn: 6009
 2003-05-06 21:31:47 +00:00
Chris Lattner
b27d60ccf1 Rename MachineInstrInfo -> TargetInstrInfo 
llvm-svn: 5272
 2003-01-14 22:00:31 +00:00
Chris Lattner
d329d95d7f * Add support for FP registers ST* 
* Add support for the constant pool & constant pool indices
* Add support for MRMS?m instructions
* Fix FP Prefix emission
* Add support for global addresses and external symbols

llvm-svn: 5224
 2003-01-13 00:33:59 +00:00
Chris Lattner
9f8812ec40 * Convert to a MachineFunctionPass 
* ctor doesn't take TM argument
* handle direct ESP references correctly!

llvm-svn: 5179
 2002-12-28 20:24:48 +00:00
Chris Lattner
c96e206d58 Add support for FP prefixes 
llvm-svn: 5151
 2002-12-25 05:09:21 +00:00
Chris Lattner
9e13907a4f Add support for the bswap instruction 
llvm-svn: 5114
 2002-12-23 23:46:00 +00:00
Chris Lattner
d838414ec1 fix warning 
llvm-svn: 5107
 2002-12-20 04:12:48 +00:00
Chris Lattner
ea2d8ad746 Give passes nice names! 
llvm-svn: 5059
 2002-12-15 21:13:40 +00:00
Chris Lattner
534876a78c Use MachineOperand::isFoo methods instead of our own global functions 
llvm-svn: 5033
 2002-12-15 08:01:39 +00:00
Brian Gaeke
5da234a1d7 InstSelectSimple.cpp: Give promote32 a comment. Add initial 
implementation of getReg() for arguments.

MachineCodeEmitter.cpp: Fix using EBP with index, scale and no
 displacement (whew!) due to Chris.

Printer.cpp: Fix printing out index and scale in memory references.

llvm-svn: 4998
 2002-12-13 07:56:18 +00:00
Chris Lattner
62454d83f0 Emit the right form of mod/rm mod field 
llvm-svn: 4986
 2002-12-13 05:05:05 +00:00
Chris Lattner
723ca2522d Rename MemArg* to Arg* 
llvm-svn: 4979
 2002-12-13 03:51:55 +00:00
Chris Lattner
b698cd8236 Make mem size an assert 
Add mem size flags to all instructions using an imm

llvm-svn: 4978
 2002-12-13 03:50:13 +00:00
Misha Brukman
6a5788bb6f This is supposed to provide correct size for datatypes. Supposedly. 
llvm-svn: 4977
 2002-12-13 02:13:15 +00:00
Chris Lattner
96edaabdb2 Fix bogus assertion failures 
llvm-svn: 4919
 2002-12-04 17:32:52 +00:00
Chris Lattner
73ac28801e Add support for referencing global variables/functions 
llvm-svn: 4907
 2002-12-04 06:45:19 +00:00
Chris Lattner
5f0614914e Split the machine code emitter completely out of the printer 
llvm-svn: 4882
 2002-12-03 06:34:06 +00:00
Chris Lattner
e66d3e90ce More support for machine code emission: raw instructions 
llvm-svn: 4872
 2002-12-02 21:56:18 +00:00
Chris Lattner
f48a330fd8 Start implementing MachineCodeEmitter 
llvm-svn: 4870
 2002-12-02 21:44:34 +00:00
Chris Lattner
8227eea4fe Initial support for machine code emission 
llvm-svn: 4866
 2002-12-02 21:24:12 +00:00