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Commit Graph

48 Commits

Author SHA1 Message Date
Craig Topper
b1f171a213 Reorder includes in Target backends to following coding standards. Remove some superfluous forward declarations.
llvm-svn: 152997
2012-03-17 18:46:09 +00:00
Craig Topper
585b4225c3 Use uint16_t to store registers in callee saved register tables to reduce size of static data.
llvm-svn: 151996
2012-03-04 03:33:22 +00:00
Jia Liu
b077b6085d Emacs-tag and some comment fix for all ARM, CellSPU, Hexagon, MBlaze, MSP430, PPC, PTX, Sparc, X86, XCore.
llvm-svn: 150878
2012-02-18 12:03:15 +00:00
Evan Cheng
561d71ce7b Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.

llvm-svn: 135424
2011-07-18 20:57:22 +00:00
Evan Cheng
24257cb9ea Next round of MC refactoring. This patch factor MC table instantiations, MC
registeration and creation code into XXXMCDesc libraries.

llvm-svn: 135184
2011-07-14 20:59:42 +00:00
Evan Cheng
65e7766262 Move CallFrameSetupOpcode and CallFrameDestroyOpcode to TargetInstrInfo.
llvm-svn: 134030
2011-06-28 21:14:33 +00:00
Evan Cheng
b83b307ae8 Hide more details in tablegen generated MCRegisterInfo ctor function.
llvm-svn: 134027
2011-06-28 20:44:22 +00:00
Evan Cheng
6fea701360 Merge XXXGenRegisterDesc.inc XXXGenRegisterNames.inc XXXGenRegisterInfo.h.inc
into XXXGenRegisterInfo.inc.

llvm-svn: 133922
2011-06-27 18:32:37 +00:00
Evan Cheng
e0801b07e0 Starting to refactor Target to separate out code that's needed to fully describe
target machine from those that are only needed by codegen. The goal is to
sink the essential target description into MC layer so we can start building
MC based tools without needing to link in the entire codegen.

First step is to refactor TargetRegisterInfo. This patch added a base class
MCRegisterInfo which TargetRegisterInfo is derived from. Changed TableGen to
separate register description from the rest of the stuff.

llvm-svn: 133782
2011-06-24 01:44:41 +00:00
Jakob Stoklund Olesen
164dc685e5 Remove custom allocation order boilerplate that is no longer needed.
The register allocators automatically filter out reserved registers and
place the callee saved registers last in the allocation order, so custom
methods are no longer necessary just for that.

Some targets still use custom allocation orders:

ARM/Thumb: The high registers are removed from GPR in thumb mode. The
NEON allocation orders prefer to use non-VFP2 registers first.

X86: The GR8 classes omit AH-DH in x86-64 mode to avoid REX trouble.

SystemZ: Some of the allocation orders are omitting R12 aliases without
explanation. I don't understand this target well enough to fix that. It
looks like all the boilerplate could be removed by reserving the right
registers.

llvm-svn: 132781
2011-06-09 16:56:59 +00:00
Rafael Espindola
33f7d7f9fa Use the dwarf->llvm mapping to print register names in the cfi
directives.

Fixes PR9826.

llvm-svn: 132317
2011-05-30 20:20:15 +00:00
Anton Korobeynikov
cf5967630b Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
llvm-svn: 123170
2011-01-10 12:39:04 +00:00
Anton Korobeynikov
269e7d3be1 Move hasFP() and few related hooks to TargetFrameInfo.
llvm-svn: 119740
2010-11-18 21:19:35 +00:00
Anton Korobeynikov
76c52dcf44 First step of huge frame-related refactoring: move emit{Prologue,Epilogue} out of TargetRegisterInfo to TargetFrameInfo, which is definitely much better suitable place
llvm-svn: 119097
2010-11-15 00:06:54 +00:00
Jim Grosbach
2b81a07dc7 Simplify eliminateFrameIndex() interface back down now that PEI doesn't need
to try to re-use scavenged frame index reference registers. rdar://8277890

llvm-svn: 112241
2010-08-26 23:32:16 +00:00
Eric Christopher
ff47f8d94f Constify some arguments.
llvm-svn: 108812
2010-07-20 06:52:21 +00:00
Chandler Carruth
8425bffa25 Remove two other uses of ATTRIBUTE_UNUSED for variables only used within
assert()s, switching to void-casts. Removed an unneeded Compiler.h include as
a result. There are two other uses in LLVM, but they're not due to assert()s,
so I've left them alone.

llvm-svn: 108088
2010-07-11 08:18:12 +00:00
Evan Cheng
47f3a2db40 Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill slots so it's always false.
llvm-svn: 107550
2010-07-03 00:40:23 +00:00
Rafael Espindola
9113809536 cleanup
llvm-svn: 105322
2010-06-02 13:53:17 +00:00
Evan Cheng
dbfb7dc438 Implement -disable-non-leaf-fp-elim which disable frame pointer elimination
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181

llvm-svn: 101984
2010-04-21 03:18:23 +00:00
Chris Lattner
58b7cca257 use DebugLoc default ctor instead of DebugLoc::getUnknownLoc()
llvm-svn: 100214
2010-04-02 20:16:16 +00:00
Jim Grosbach
f328c5334f Change the Value argument to eliminateFrameIndex to a type-tagged value. This
is preparatory to having PEI's scavenged frame index value reuse logic
properly distinguish types of frame values (e.g., whether the value is
stack-pointer relative or frame-pointer relative).

No functionality change.

llvm-svn: 98086
2010-03-09 21:45:49 +00:00
Bill Wendling
5457c30e95 Mark variable used by 'assert' as 'unused'.
llvm-svn: 92198
2009-12-28 02:07:00 +00:00
Anton Korobeynikov
89d281c7c3 Mark FPW as allocable when frame address is taken.
llvm-svn: 91841
2009-12-21 20:18:49 +00:00
Anton Korobeynikov
71b92ae4e0 Initial codegen support for MSP430 ISRs
llvm-svn: 90739
2009-12-07 02:27:53 +00:00
Chris Lattner
9ce833945e improve portability to avoid conflicting with std::next in c++'0x.
Patch by Howard Hinnant!

llvm-svn: 90365
2009-12-03 00:50:42 +00:00
David Greene
58e7c6145b Add a bool flag to StackObjects telling whether they reference spill
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022
2009-11-12 20:49:22 +00:00
Jim Grosbach
61c5ce1bde Add register-reuse to frame-index register scavenging. When a target uses
a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.

eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.

ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.

llvm-svn: 83467
2009-10-07 17:12:56 +00:00
Duncan Sands
10c1356bad Remove some unused variables and methods warned about by
icc (#177, partial).  Patch by Erick Tryzelaar.

llvm-svn: 81106
2009-09-06 08:33:48 +00:00
Anton Korobeynikov
b388728ba7 Provide dynamic_stackalloc lowering for MSP430.
This fixes PR4769

llvm-svn: 80001
2009-08-25 17:00:23 +00:00
Chris Lattner
18af1b233a Give getPointerRegClass() a "kind" value so that targets can
support multiple different pointer register classes.

llvm-svn: 77501
2009-07-29 20:31:52 +00:00
Torok Edwin
f955a6ef49 llvm_unreachable->llvm_unreachable(0), LLVM_UNREACHABLE->llvm_unreachable.
This adds location info for all llvm_unreachable calls (which is a macro now) in
!NDEBUG builds.
In NDEBUG builds location info and the message is off (it only prints
"UREACHABLE executed").

llvm-svn: 75640
2009-07-14 16:55:14 +00:00
Torok Edwin
ae8a3ff177 assert(0) -> LLVM_UNREACHABLE.
Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.

llvm-svn: 75379
2009-07-11 20:10:48 +00:00
Duncan Sands
c149803103 Silence warning when building without assertions.
llvm-svn: 74777
2009-07-03 16:06:07 +00:00
Bill Wendling
e421c8f63d Change MachineInstrBuilder::addReg() to take a flag instead of a list of
booleans. This gives a better indication of what the "addReg()" is
doing. Remembering what all of those booleans mean isn't easy, especially if you
aren't spending all of your time in that code.

I took Jakob's suggestion and made it illegal to pass in "true" for the
flag. This should hopefully prevent any unintended misuse of this (by reverting
to the old way of using addReg()).

llvm-svn: 71722
2009-05-13 21:33:08 +00:00
Anton Korobeynikov
c428224a89 Add prologue/epilogue emission. Fix frame pointer handling.
llvm-svn: 70740
2009-05-03 13:11:20 +00:00
Anton Korobeynikov
6a63537ff0 Two more hooks for RA and FP registers
llvm-svn: 70738
2009-05-03 13:10:40 +00:00
Anton Korobeynikov
06d645c199 Proper handle loading of effective address of stack slot stuff
llvm-svn: 70737
2009-05-03 13:10:26 +00:00
Anton Korobeynikov
e7639579a3 First draft of stack slot loads / stores lowering
llvm-svn: 70735
2009-05-03 13:09:57 +00:00
Anton Korobeynikov
b396742d02 Add call frame setup instruction elimination and lowerid for bunch of call-related stuff.
llvm-svn: 70728
2009-05-03 13:07:54 +00:00
Anton Korobeynikov
1c0af22261 Add 8-bit regclass and pattern for sext_inreg
llvm-svn: 70721
2009-05-03 13:05:22 +00:00
Anton Korobeynikov
e9e0353b21 Add code enough for emission of reg-reg and reg-imm moves. This allows us to compile "ret i16 0" properly!
llvm-svn: 70710
2009-05-03 13:02:04 +00:00
Anton Korobeynikov
f5317831da Make emit{Prologue,Epilogue}() noop for now
llvm-svn: 70707
2009-05-03 13:01:04 +00:00
Anton Korobeynikov
57d55e96cd Add callee-saved regs & reg classes getter hooks
llvm-svn: 70706
2009-05-03 13:00:46 +00:00
Anton Korobeynikov
70dbb3eb2f Add simple FP indicator for given function hook
llvm-svn: 70705
2009-05-03 13:00:28 +00:00
Anton Korobeynikov
4c91b3a6f2 Provide set of reserved registers
llvm-svn: 70704
2009-05-03 13:00:11 +00:00
Anton Korobeynikov
b85740bf76 Fix register names, fix register allocation order, handle frame pointer.
llvm-svn: 70701
2009-05-03 12:59:16 +00:00
Anton Korobeynikov
d49e584da5 Dummy MSP430 backend
llvm-svn: 70694
2009-05-03 12:57:15 +00:00