Commit Graph

92 Commits

Author SHA1 Message Date
Alkis Evlogimenos
e0bb3e766d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10562 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 16:22:59 +00:00
Chris Lattner
655239cc6b 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10559 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 10:20:19 +00:00
Chris Lattner
1e60a9165d Rip JIT specific stuff out of TargetMachine, as per PR176
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10542 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-20 01:22:19 +00:00
Alkis Evlogimenos
359b65f782 Add a floating point killer pass. This pass runs before register
allocaton on the X86 to add information to the machine code denoting
that our floating point stackifier cannot handle virtual point
register that are alive across basic blocks. This pass adds an
implicit def of all virtual floating point register at the end of each
basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10446 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-13 05:36:22 +00:00
Chris Lattner
9b527704f7 Add an option to enable the SSA based peephole optimizer.
Eventually this pass will provide substantially better code in the interim between when we
have a crappy isel and nice isel.  Unfortunately doing so requires fixing the backend to
actually SUPPORT all of the fancy addressing modes that we now generate, and writing a DCE
pass for machine code.  Each of these is a fairly substantial job, so this will remain disabled
for the immediate future.  :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10276 91177308-0d34-0410-b5e6-96231b3b80d8
2003-12-01 05:18:30 +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
Chris Lattner
2bee057a56 Fix warnings building on sparc
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9758 91177308-0d34-0410-b5e6-96231b3b80d8
2003-11-06 21:30:05 +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
Brian Gaeke
682ce72e60 Make replaceMachineCodeForFunction return void.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9288 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 15:15:17 +00:00
Chris Lattner
6c09db2959 Eliminate code for pointer size and endianness emulation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9281 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-20 04:11:23 +00:00
Brian Gaeke
e5f6859911 You can't just blat the address into memory, you have to blat its
displacement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9210 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-17 21:47:25 +00:00
Brian Gaeke
9b8c2911d9 Implement replaceMachineCodeForFunction() for x86.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9204 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-17 18:27:46 +00:00
Chris Lattner
c58c169eda Instead of hacking in custom support for Invoke/Unwind, use the LowerInvoke pass
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8871 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-05 19:15:47 +00:00
Alkis Evlogimenos
7237ecef13 Moved enum and command-line option in separate file. Also added function that returns the user selected register allocator to the caller.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8819 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 16:57:49 +00:00
Alkis Evlogimenos
eed462b685 Change llc command line for register allocators
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8815 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 06:13:19 +00:00
Alkis Evlogimenos
77e78d050a Revert previous change. For some reason this went into the main branch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8805 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-01 19:40:13 +00:00
Alkis Evlogimenos
6ac2c8c673 Added command line option for linear scan allocator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8804 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-01 19:38:10 +00:00
Chris Lattner
bb144a892b Targets should configure themselves based on a Module, not some wierd flags
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8132 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-24 19:49:48 +00:00
Chris Lattner
7540565863 Fix ABI issue: Longs really do need to be only 4 byte aligned on X86.
This bug caused miscompilation of programs using 'struct stat', but only if
compiled with support for 64-bit filesystems.  This could in theory effect
other things, but only if the LLVM code shared data structures with native code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7928 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-17 23:20:40 +00:00
Brian Gaeke
b428654076 addPassesToJITCompile now takes a FunctionPassManager, to support
function-at-a-time compilation and emission of code.
Separate addPassesToEmitAssembly from addPassesToJITCompile, because
 the latter requires you to use FunctionPasses, and the former might
 diverge anyway.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7817 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 18:15:52 +00:00
Chris Lattner
ac0c8680ad Add support for a pattern matching instruction selector. This is still in
the early implementation phases, so it is disabled by default


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7719 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-11 14:59:22 +00:00
Chris Lattner
c9bbfbc04e Factor shared code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7600 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-05 16:34:44 +00:00
Chris Lattner
d281de2181 Rename function to be more consistent with filename
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7352 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-26 23:49:58 +00:00
Brian Gaeke
de420aee32 Printer.cpp: Ditch addRequired/getAnalysis, because they leave
Printer::doFinalization() out in the cold.  Now we pass in a TargetMachine
  to Printer's constructor and get the TargetData from the TargetMachine.
 Don't pass TargetMachine or MRegisterInfo objects around in the Printer.
 Constify TargetData references.
X86.h: Update comment and prototype of createX86CodePrinterPass().
X86TargetMachine.cpp: Update callers of createX86CodePrinterPass().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7275 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-23 20:25:08 +00:00
Brian Gaeke
de3aa4f77f lib/Target/X86/X86TargetMachine.{cpp,h}: Add initial version
(non-working) of llc guts for X86, and add a prototype for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6779 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-18 21:43:21 +00:00
Chris Lattner
10daaa1416 Remove two fields from TargetData which are target specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5963 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-26 20:11:09 +00:00
Chris Lattner
98938f83d5 Fix compatibility bug: X86 aligns doubles to 4 bytes, not 8!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5935 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-25 06:05:57 +00:00
Chris Lattner
155e68feea Add support for the Switch instruction by running the lowerSwitch pass first
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5867 91177308-0d34-0410-b5e6-96231b3b80d8
2003-04-23 16:24:55 +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
d91d86f3a6 * No longer need lowerallocation pass
* Add X86 Stackifier pass
* Add peephole optimizer pass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5233 91177308-0d34-0410-b5e6-96231b3b80d8
2003-01-13 00:51:23 +00:00
Chris Lattner
d282cfef61 * Initialize new FrameInfo member
* most pass ctors no longer take TM arguments
* New prolog/epilog insertion pass


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5188 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-28 20:33:32 +00:00
Chris Lattner
430cda7452 Free machine code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5146 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-25 05:06:21 +00:00
Chris Lattner
5bcd95c57f Changes to allow for a configurable target machine that allows big endian and/or long pointer operation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5131 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-24 00:04:01 +00:00
Chris Lattner
14322cd337 Local register allocator is now stable enough for use, it passes all tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5094 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-17 02:51:15 +00:00
Chris Lattner
439a27ac42 Add mechanism to select register allocator to use
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5079 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 16:15:51 +00:00
Chris Lattner
1a45626c4c Rename createSimpleX86RegisterAllocator to createSimpleRegisterAllocator
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5071 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-16 14:38:13 +00:00
Misha Brukman
b8ead9dc22 Make function code generation printing debug-only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5023 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13 13:16:14 +00:00
Brian Gaeke
e48ec018a5 brg
InstSelectSimple.cpp: Add stub implementation of visitFreeInst.
 Add comments that mention how we are failing to implement malloc/free.
 Add initial implementation of visitAllocaInst.

X86TargetMachine.cpp: Include llvm/Transforms/Scalar.h.
 Add LowerAllocations pass before instruction selection.

jello/Makefile: Add scalaropts.a.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4994 91177308-0d34-0410-b5e6-96231b3b80d8
2002-12-13 06:46:31 +00:00
Misha Brukman
f88a2853c8 Enable the register allocator pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4829 91177308-0d34-0410-b5e6-96231b3b80d8
2002-11-22 22:45:07 +00:00
Chris Lattner
3dffa7953f Print machine code after instruction selection
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4434 91177308-0d34-0410-b5e6-96231b3b80d8
2002-10-30 00:47:49 +00:00
Chris Lattner
b4f68ed32e Convert backend to use passes, implement X86TargetMachine
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4421 91177308-0d34-0410-b5e6-96231b3b80d8
2002-10-29 22:37:54 +00:00