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1850 Commits

Author SHA1 Message Date
Bill Wendling
289ab30051 Moved the MachOWriter and ELFWriter out of the Target/* files. Placed the 
definition of it into the CodeGen library. This is so that a backend doesn't
necessarily add in these writers if it doesn't use them (like in the lli
program).

llvm-svn: 34034
 2007-02-08 01:39:44 +00:00
Bill Wendling
abb65b1d4d Dead files. Functionality has been taken over by the Add*Writer functions. 
llvm-svn: 34029
 2007-02-08 01:32:51 +00:00
Bill Wendling
4423d49d94 Moved the GetTargetRelocation method from PPCMachOWriter to here. It uses 
non-Mach-O-specific information.

llvm-svn: 33819
 2007-02-03 02:41:58 +00:00
Bill Wendling
2831f1ae0d Moved the GetTargetRelocation method to the PPCMachOWriterInfo object. The 
PPCMachOWriter is now trivial.

llvm-svn: 33818
 2007-02-03 02:40:57 +00:00
Jim Laskey
52a12383a4 Support for non-landing pad exception handling. 
llvm-svn: 33755
 2007-02-01 16:31:34 +00:00
Chris Lattner
f4e5c29cb9 Fix CodeGen/PowerPC/2007-01-31-InlineAsmAddrMode.ll 
llvm-svn: 33732
 2007-02-01 00:39:08 +00:00
Chris Lattner
084d1d8706 A relatively simple PPC optimization. 
llvm-svn: 33709
 2007-01-31 19:49:20 +00:00
Reid Spencer
19af04a142 For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.

llvm-svn: 33663
 2007-01-30 20:08:39 +00:00
Evan Cheng
3f02e5b1e7 Darwin -static should codegen static ctors / dtors to .constructor / .destructor sections. 
llvm-svn: 33657
 2007-01-30 08:04:53 +00:00
Jim Laskey
6f5d7d292f Only gather frame info if debug or eh. 
llvm-svn: 33639
 2007-01-29 23:20:22 +00:00
Nate Begeman
dc46021355 Finish off bug 680, allowing targets to custom lower frame and return 
address nodes.

llvm-svn: 33636
 2007-01-29 22:58:52 +00:00
Nate Begeman
32cbf413b6 We'd still like to register allocate r2 on darwin before the callee-save 
regs.

llvm-svn: 33635
 2007-01-29 22:57:48 +00:00
Nate Begeman
484e7a8b01 Update some of the llvm in the readme 
llvm-svn: 33630
 2007-01-29 21:21:22 +00:00
Jim Laskey
eba0cf04e5 Landing pad-less eh for PPC. 
llvm-svn: 33622
 2007-01-29 18:51:14 +00:00
Anton Korobeynikov
611d5e2eda Propagate changes from my local tree. This patch includes: 
1. New parameter attribute called 'inreg'. It has meaning "place this
parameter in registers, if possible". This is some generalization of
gcc's regparm(n) attribute. It's currently used only in X86-32 backend.
2. Completely rewritten CC handling/lowering code inside X86 backend.
Merged stdcall + c CCs and fastcall + fast CC.
3. Dropped CSRET CC. We cannot add struct return variant for each
target-specific CC (e.g. stdcall + csretcc and so on).
4. Instead of CSRET CC introduced 'sret' parameter attribute. Setting in
on first attribute has meaning 'This is hidden pointer to structure
return. Handle it gently'.
5. Fixed small bug in llvm-extract + add new feature to
FunctionExtraction pass, which relinks all internal-linkaged callees
from deleted function to external linkage. This will allow further
linking everything together.

NOTEs: 1. Documentation will be updated soon.
       2. llvm-upgrade should be improved to translate csret => sret.
          Before this, there will be some unexpected test fails.
llvm-svn: 33597
 2007-01-28 13:31:35 +00:00
Nate Begeman
80d913651d Fix a spelling error 
llvm-svn: 33556
 2007-01-26 22:40:50 +00:00
Nate Begeman
481b84a66b Handle multiple functions, properly mangle symbols, and fix support for 
scattered relocations.

llvm-svn: 33555
 2007-01-26 22:39:48 +00:00
Jim Laskey
64f4242072 Change the MachineDebugInfo to MachineModuleInfo to better reflect usage 
for debugging and exception handling.

llvm-svn: 33550
 2007-01-26 21:22:28 +00:00
Jim Laskey
23ed7d2625 Make LABEL a builtin opcode. 
llvm-svn: 33537
 2007-01-26 14:34:52 +00:00
Evan Cheng
970ed5d59f Fix comment. 
llvm-svn: 33508
 2007-01-25 22:48:25 +00:00
Evan Cheng
9009b02367 - Tell PEI that PPC will handle stack frame rounding itself. 
- Do not round up to max. alignment of stack object if it is > stack alignment.
  It will have to be handled with dynamic aligning code.

llvm-svn: 33505
 2007-01-25 22:25:04 +00:00
Chris Lattner
c3f461a03c Fix test/CFrontend/2007-01-24-InlineAsmCModifier.c on PPC 
llvm-svn: 33494
 2007-01-25 02:52:50 +00:00
Jim Laskey
a67f14502d Repair debug frames as a prelude to eh_frames. Switched to using MachineMoves 
by value so that clean up is less confusing (these vectors tend to be small.)

llvm-svn: 33488
 2007-01-24 18:45:13 +00:00
Bill Wendling
c0ecd3ff91 Make ivars private and use getters. Have the MachOWriter return "Mach-O 
Writer" for the pass name.

llvm-svn: 33483
 2007-01-24 07:13:56 +00:00
Bill Wendling
68d62e3a4c Add a field for and construction of the PPCMachOWriterInfo object. 
llvm-svn: 33480
 2007-01-24 03:41:36 +00:00
Bill Wendling
a34cc9d823 Move the getJTRelocation method out of here. 
llvm-svn: 33479
 2007-01-24 03:40:33 +00:00
Bill Wendling
24e03bd501 New "TargetMachOWriterInfo" class. It holds target-specific information 
that the MachOWriter needs in order to do its writing stuff 'n things.

llvm-svn: 33475
 2007-01-24 03:36:05 +00:00
Evan Cheng
d9d93832b0 hasFP() is now a virtual method of MRegisterInfo. 
llvm-svn: 33455
 2007-01-23 00:57:47 +00:00
Evan Cheng
c76a2c6c18 Double and long preferred alignment set to 8 bytes. 
llvm-svn: 33447
 2007-01-22 23:11:06 +00:00
Nick Lewycky
b8c2b60bb5 Needed to build on PPC Linux. 
llvm-svn: 33352
 2007-01-19 04:36:02 +00:00
Chris Lattner
54dac5f09e move contents of PR587 to here. 
llvm-svn: 33333
 2007-01-18 07:34:57 +00:00
Bill Wendling
af4f1b8791 Have the OutputBuffer take the is64Bit and isLittleEndian booleans. 
llvm-svn: 33316
 2007-01-18 01:23:11 +00:00
Chris Lattner
770735e1ca Modify emission of jump tables on darwin to emit an extra "l" label that 
delimits the boundaries of jump tables.  This lets the linker's dead code
stripping optimization do a better job.

llvm-svn: 33315
 2007-01-18 01:15:58 +00:00
Bill Wendling
9306626c66 Changed to use the OutputBuffer instead of the methods in MachO and ELF 
writers.

llvm-svn: 33311
 2007-01-17 22:22:31 +00:00
Bill Wendling
6cf6bb2d24 Revert patch. 
llvm-svn: 33298
 2007-01-17 09:06:13 +00:00
Bill Wendling
60dcce11c7 Create the specified TargetObjInfo and use it. 
llvm-svn: 33291
 2007-01-17 03:51:37 +00:00
Bill Wendling
5789edd7f5 New "TargetObjInfo" class. This holds information that the object writers will 
use to write things to the file. It's abstract so each target should implement
its own version for each writer type.

llvm-svn: 33286
 2007-01-17 03:46:30 +00:00
Bill Wendling
efde03bbf6 Instead of yet another enum indicating the "assembly language flavor", 
just use the one that's in the subtarget.

llvm-svn: 33255
 2007-01-16 09:29:17 +00:00
Bill Wendling
cfdd717db5 Fix for PR1095: 
LLVM would miscompile ASM dialects when compiling for PPC. Added dialects for
the X86 and PPC backends. It defaults to "0", the first variant of a compound
inline asm expression.

llvm-svn: 33246
 2007-01-16 03:42:04 +00:00
Chris Lattner
69b1c31416 add support for hidden visibility to darwin/ppc and linux/ppc targets 
llvm-svn: 33200
 2007-01-14 06:37:54 +00:00
Chris Lattner
a346ea7b29 Disable the macho writer until it is 100% functional. Enabling it when 
broken invites bug reports.

llvm-svn: 32961
 2007-01-06 22:27:58 +00:00
Evan Cheng
5ba049eabf setSetCCIsExpensive is gone. 
llvm-svn: 32941
 2007-01-05 23:42:53 +00:00
Evan Cheng
bd6a333b52 Fix naming inconsistency. 
llvm-svn: 32823
 2007-01-02 21:33:40 +00:00
Jim Laskey
80eeff2d0d Changes from Nick Lewycky with a simplified PPCTargetAsmInfo. 
llvm-svn: 32735
 2006-12-21 20:26:09 +00:00
Jim Laskey
7cbf5d885e Oops. 
llvm-svn: 32724
 2006-12-20 21:35:00 +00:00
Jim Laskey
74097d8025 Original patch was overly complicated. 
llvm-svn: 32723
 2006-12-20 21:33:34 +00:00
Jim Laskey
6f0a54bd18 Changes to target powerpc for non-Darwin assemblers. 
1. Patches from Nick Lewycky.
2. Code to filter register names and print them as numeric values on
non-Darwin systems.

llvm-svn: 32721
 2006-12-20 20:56:46 +00:00
Chris Lattner
8896b6cb46 eliminate static ctors for Statistic objects. 
llvm-svn: 32703
 2006-12-19 22:59:26 +00:00
Rafael Espindola
08c0825f18 move ExtWeakSymbols to AsmPrinter 
llvm-svn: 32648
 2006-12-18 03:37:18 +00:00
Chris Lattner
e223919df1 Apply B. Scott Michel's patch for PR1054, thanks! 
llvm-svn: 32630
 2006-12-16 20:23:42 +00:00
Jim Laskey
1507a869b2 Patterns no longer needed due to fix in the DAG combiner. 
llvm-svn: 32612
 2006-12-15 21:39:31 +00:00
Jim Laskey
e1216497dc Not all test cases are created equal. This fix is needed. 
llvm-svn: 32605
 2006-12-15 18:51:01 +00:00
Jim Laskey
0641795154 Not needed. Misinterpreted error message from other bug (Missing load/store 
relocations.)

llvm-svn: 32604
 2006-12-15 18:45:32 +00:00
Jim Laskey
b07d89090c Missing load/store relocations. 
llvm-svn: 32601
 2006-12-15 16:44:10 +00:00
Jim Laskey
d00589fefd Provide 64-bit support for i64 sextload<i8>. 
llvm-svn: 32600
 2006-12-15 14:34:11 +00:00
Jim Laskey
721e7d2129 Provide support for FP_TO_UINT. 
llvm-svn: 32599
 2006-12-15 14:32:57 +00:00
Jim Laskey
ac064e92da Honor cpu directive, take two. 
llvm-svn: 32492
 2006-12-12 20:57:08 +00:00
Jim Laskey
b039172d58 Rollback changes to take a different tack. 
llvm-svn: 32488
 2006-12-12 19:26:50 +00:00
Jim Laskey
8a5cea99ed Honor the command line specification for machine type. 
llvm-svn: 32483
 2006-12-12 16:07:33 +00:00
Jim Laskey
18b1edb10d Reduce number of instructions to load 64-bit constants. 
llvm-svn: 32481
 2006-12-12 13:23:43 +00:00
Chris Lattner
fb4898fdd8 Another step forward in PPC64 JIT support: we now no-longer need stubs 
emitted for external globals in PPC64-JIT-PIC mode (which is good because
we didn't handle them before!).

This also fixes a bug handling the picbase delta, which we would get wrong
in some cases.

llvm-svn: 32451
 2006-12-11 23:22:45 +00:00
Chris Lattner
7f60301c69 getInstrItineraryData shouldn't copy the itineraries 
llvm-svn: 32448
 2006-12-11 21:42:55 +00:00
Jim Laskey
e2a261ad36 Missing opcode. 
llvm-svn: 32439
 2006-12-11 18:45:56 +00:00
Jim Laskey
911ae665d0 Layout proper frame for ppc64. 
llvm-svn: 32436
 2006-12-11 18:10:54 +00:00
Nate Begeman
b1b1aaa4e5 Properly mangles symbol table names 
Supports constant pools
Supports relocations to jump tables
Supports relocations within the data segment (global = address of global)
Allocates memory in a non-hacky for all non-code objects.

llvm-svn: 32430
 2006-12-11 02:20:45 +00:00
Anton Korobeynikov
e76b69846d Cleaned setjmp/longjmp lowering interfaces. Now we're producing right 
code (both asm & cbe) for Mingw32 target.
Removed autoconf checks for underscored versions of setjmp/longjmp.

llvm-svn: 32415
 2006-12-10 23:12:42 +00:00
Jim Laskey
3fa703d088 Reverting until finding the cause of secondary bugs. 
llvm-svn: 32413
 2006-12-10 13:09:42 +00:00
Jim Laskey
a8f4c1d137 __PPC64CompilationCallback code was allowing registers to be clobbered by stub. 
llvm-svn: 32412
 2006-12-10 12:13:31 +00:00
Chris Lattner
5d79e6ff6c this is an initial patch to switch the ppc64 jit over to working in PIC mode, 
which allows the code to be above the 2G marker.  We still need to JIT emit
dyld stubs to support external, weak, common, etc globals, but that will
happen tomorrow.

llvm-svn: 32348
 2006-12-08 04:54:03 +00:00
Chris Lattner
ce8d432068 fix incorrect encoding of rldicr, used by ppc64 function stubs, etc. 
llvm-svn: 32341
 2006-12-07 23:44:07 +00:00
Bill Wendling
f13d78d3b8 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Chris Lattner
ebe31092ff fix CodeGen/PowerPC/2006-12-07-LargeAlloca.ll on ppc64 
llvm-svn: 32331
 2006-12-07 22:15:58 +00:00
Chris Lattner
f5fd4be9dd Fix i64 uint_to_fp on ppc64 
llvm-svn: 32297
 2006-12-07 01:24:16 +00:00
Chris Lattner
5adcc9ae58 implement sextinreg i8->i64 and i16->i64 
llvm-svn: 32293
 2006-12-06 21:46:13 +00:00
Chris Lattner
82157643ed fix another sradi encoding bug. This fixes Olden/health with the ppc64 jit. 
llvm-svn: 32291
 2006-12-06 21:35:10 +00:00
Chris Lattner
6d74c6ebec fix the jit encoding of sradi, simplify the MDForm1 description. 
llvm-svn: 32285
 2006-12-06 20:02:54 +00:00
Chris Lattner
d4e8f5d141 add relocation support for ppc64 branches. 
llvm-svn: 32284
 2006-12-06 19:40:04 +00:00
Chris Lattner
a531ce882e Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Jim Laskey
0ffc5bc871 Make it easier for gdb to find the return address. 
llvm-svn: 32277
 2006-12-06 17:42:06 +00:00
Jim Laskey
1dcda902cd Restoration of the stack pointer after a deallocation of a alloca was not 
updating the SP link.

llvm-svn: 32202
 2006-12-04 22:04:42 +00:00
Evan Cheng
c5ad9caeff Add weak reference directive. 
llvm-svn: 32091
 2006-12-01 20:47:11 +00:00
Evan Cheng
1d611158eb Copy and paste error. An initialized global cannot be a weak reference. 
llvm-svn: 32075
 2006-12-01 17:39:22 +00:00
Jim Laskey
8f43fbf759 1. In ppc64 mode we need only use one GPR. 
2. Float values need to be promoted to double when they are vararg.

llvm-svn: 32074
 2006-12-01 16:30:47 +00:00
Jim Laskey
a8db40105b ExternalWeak case in wrong location. 
llvm-svn: 32073
 2006-12-01 14:37:39 +00:00
Evan Cheng
3cc87db480 A initialized global variable cannot be extern weak. However, if a global value's initializer is itself a external weak symbol, emit the weak reference. 
llvm-svn: 32069
 2006-12-01 09:13:26 +00:00
Evan Cheng
6f5f81722b Darwin PPC external weak linkage support. 
llvm-svn: 32068
 2006-12-01 07:56:37 +00:00
Chris Lattner
860908f98c Fix the CodeGen/PowerPC/vec_constants.ll regression. 
llvm-svn: 32057
 2006-12-01 01:45:39 +00:00
Evan Cheng
d8be97599a MachineInstr::setOpcode -> MachineInstr::setInstrDescriptor 
llvm-svn: 32034
 2006-11-30 07:12:03 +00:00
Chris Lattner
3219b522c8 Fix bug codegen'ing FP constant vectors with integer splats. Make sure the 
created intrinsics have the right integer types.  This fixes
PowerPC/2006-11-29-AltivecFPSplat.ll

llvm-svn: 32024
 2006-11-29 19:58:49 +00:00
Jim Laskey
00bcb51943 Offset for load of 32-bit arg in 64-bit world was incorrect. 
llvm-svn: 32019
 2006-11-29 13:37:09 +00:00
Jim Laskey
7b0a74da3c Remove debug code. 
llvm-svn: 31970
 2006-11-28 18:27:02 +00:00
Jim Laskey
737f53b6aa Prime text sections to improve branch locality in large object files. 
llvm-svn: 31969
 2006-11-28 18:21:52 +00:00
Jim Laskey
a5c5ceb212 32-bit int space was not accounted for properly in lowerCall. 
llvm-svn: 31966
 2006-11-28 14:53:52 +00:00
Evan Cheng
98fa7ab4d7 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead 
of opcode and number of operands.

llvm-svn: 31947
 2006-11-27 23:37:22 +00:00
Reid Spencer
5ae73ed00d Add newline at end of file. 
llvm-svn: 31902
 2006-11-25 05:41:02 +00:00
Chris Lattner
ed9a2f6371 in ppc64-mode, don't allocate the 32-bit version of r13 either. 
llvm-svn: 31884
 2006-11-20 20:48:05 +00:00
Chris Lattner
ad5f088196 r13 is the thread pointer on darwin/ppc64, don't allocate it. 
llvm-svn: 31882
 2006-11-20 19:33:51 +00:00
Chris Lattner
eb9b1840b3 on ppc64, float arguments take 8-byte stack slots not 4-byte stack slots. 
Also, valist should create a pointer RC reg class value, not a GPRC value.

llvm-svn: 31840
 2006-11-18 01:57:19 +00:00
Chris Lattner
c4b759987a make sure to safe LR8 in the right stack slot for PPC64 
llvm-svn: 31839
 2006-11-18 01:34:43 +00:00
Chris Lattner
a55a2365bc Pretty print 'rldicr r2, r2, 2, 61' as 'sldi r2, r2, 2'. 
llvm-svn: 31838
 2006-11-18 01:23:56 +00:00
Chris Lattner
f50d87eb50 Rewrite the branch selector to be correct in the face of large functions. 
The algorithm it used before wasn't 100% correct, we now use an iterative
expansion model.  This fixes assembler errors when compiling 403.gcc with
tail merging enabled.

Change the way the branch selector works overall: Now, the isel generates
PPC::BCC instructions (as it used to) directly, and these BCC instructions
are emitted to the output or jitted directly if branches don't need
expansion.  Only if branches need expansion are instructions rewritten
and created.  This should make branch select faster, and eliminates the
Bxx instructions from the .td file.

llvm-svn: 31837
 2006-11-18 00:32:03 +00:00
Chris Lattner
a5439b7913 add encoding for BCC, after finally wrestling strange ppc/tblgen endianness 
issues to the ground.

llvm-svn: 31836
 2006-11-17 23:53:28 +00:00
Chris Lattner
0d88b19f2f convert PPC::BCC to use the 'pred' operand instead of separate predicate 
value and CR reg #.  This requires swapping the order of these everywhere
that touches BCC and requires us to write custom matching logic for
PPCcondbranch :(

llvm-svn: 31835
 2006-11-17 22:37:34 +00:00
Chris Lattner
73329ae80d rename PPC::COND_BRANCH to PPC::BCC 
llvm-svn: 31834
 2006-11-17 22:14:47 +00:00
Chris Lattner
1527483a15 start using PPC predicates more consistently. 
llvm-svn: 31833
 2006-11-17 22:10:59 +00:00
Jim Laskey
a1f032c03a Assert unhandled case. 
llvm-svn: 31828
 2006-11-17 18:49:39 +00:00
Jim Laskey
b56f73f709 1. Ignore the -disable-fp-elim when the routine is a leaf. 
2. Offsets on 64-bit stores are still in bytes.

llvm-svn: 31824
 2006-11-17 16:09:31 +00:00
Jim Laskey
e0ff7bdbd3 Typo. Fix the nightly tests. 
llvm-svn: 31823
 2006-11-17 14:06:41 +00:00
Chris Lattner
81683aa08b implement a todo: change a map into a vector 
llvm-svn: 31805
 2006-11-17 01:52:23 +00:00
Chris Lattner
e4e113818f fix typo 
llvm-svn: 31799
 2006-11-17 00:49:36 +00:00
Chris Lattner
237ee79d06 implicit_def_vrrc doesn't generate code. 
llvm-svn: 31797
 2006-11-16 23:49:52 +00:00
Jim Laskey
8aac7dc0ee This is a general clean up of the PowerPC ABI. Address several problems and 
bugs including making sure that the TOS links back to the previous frame,
that the maximum call frame size is not included twice when using frame
pointers, no longer growing the frame on calls, double storing of SP and
a cleaner/faster dynamic alloca.

llvm-svn: 31792
 2006-11-16 22:43:37 +00:00
Chris Lattner
5dcf43138d fix a regression that I introduced. stdu should scale the offset by 4 
before printing it.

llvm-svn: 31791
 2006-11-16 21:45:30 +00:00
Chris Lattner
41280ae60d add a statistic 
llvm-svn: 31785
 2006-11-16 18:13:49 +00:00
Chris Lattner
283e7306c1 fix broken encoding 
llvm-svn: 31778
 2006-11-16 01:01:28 +00:00
Chris Lattner
99d9dd8d07 add ppc64 r+i stores with update. 
llvm-svn: 31776
 2006-11-16 00:57:19 +00:00
Chris Lattner
4edb6f09fe add patterns for ppc32 preinc stores. ppc64 next. 
llvm-svn: 31775
 2006-11-16 00:41:37 +00:00
Chris Lattner
c4b9cff1f9 switch these back to the 'bad old way' 
llvm-svn: 31774
 2006-11-16 00:33:34 +00:00
Chris Lattner
f505815dad Fix ppc64 epilog bug. 
llvm-svn: 31771
 2006-11-15 23:35:30 +00:00
Chris Lattner
bd95b9d4ae Stop using isTwoAddress, switching to operand constraints instead. 
Tell the codegen emitter that specific operands are not to be encoded, fixing
JIT regressions w.r.t. pre-inc loads and stores (e.g. lwzu, which we generate
even when general preinc loads are not enabled).

llvm-svn: 31770
 2006-11-15 23:24:18 +00:00
Evan Cheng
2a92afa25d Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Chris Lattner
9bc55a6c38 fix ldu/stu jit encoding. Swith 64-bit preinc load instrs to use memri 
addrmodes.

llvm-svn: 31757
 2006-11-15 19:55:13 +00:00
Chris Lattner
2f520b36ba Fix the PPC regressions last night 
llvm-svn: 31752
 2006-11-15 17:40:51 +00:00
Chris Lattner
6d5a509e34 Switch loads over to use memri as the operand instead of a reg/imm operand 
pair for cleanliness.  Add instructions for PPC32 preinc-stores with commented
out patterns.  More improvement is needed to enable the patterns, but we're
getting close.

llvm-svn: 31749
 2006-11-15 02:43:19 +00:00
Chris Lattner
55c68f61a7 group load and store instructions together. No functionality change. 
llvm-svn: 31736
 2006-11-14 19:19:53 +00:00
Chris Lattner
dc48b6a77c Rework PPC64 calls. Now we have a LR8/CTR8 register which the PPC64 calls 
clobber.  This allows LR8 to be save/restored correctly as a 64-bit quantity,
instead of handling it as a 32-bit quantity.  This unbreaks ppc64 codegen when
the code is actually located above the 4G boundary.

llvm-svn: 31734
 2006-11-14 18:44:47 +00:00
Chris Lattner
10b528d5c3 remove a ton of custom selection logic no longer needed 
llvm-svn: 31733
 2006-11-14 18:43:11 +00:00
Chris Lattner
e3a81b796c lower "X = seteq Y, Z" to '(shr (ctlz (xor Y, Z)), 5)' instead of 
'(shr (ctlz (sub Y, Z)), 5)'.

The use of xor better exposes the operation to bit-twiddling logic in the
dag combiner.  For example, this:

typedef struct {
  unsigned prefix : 4;
  unsigned code : 4;
  unsigned unsigned_p : 4;
} tree_common;

int foo(tree_common *a, tree_common *b) {
  return a->code == b->code;
}

Now compiles to:

_foo:
        lwz r2, 0(r4)
        lwz r3, 0(r3)
        xor r2, r3, r2
        rlwinm r2, r2, 28, 28, 31
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

instead of:

_foo:
        lbz r2, 3(r4)
        lbz r3, 3(r3)
        srwi r2, r2, 4
        srwi r3, r3, 4
        subf r2, r2, r3
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

saving a cycle.

llvm-svn: 31725
 2006-11-14 05:28:08 +00:00
Chris Lattner
fdffc51d57 minor tweaks, reject vector preinc. 
llvm-svn: 31717
 2006-11-14 01:38:31 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Chris Lattner
81ea2c7c0a teach the g5 hazard recognizer about update loads. This fixes 
Ptrdist/anagram among others.

llvm-svn: 31708
 2006-11-13 20:11:06 +00:00
Jim Laskey
d692c1a0ab Make sure stack link is set in 64-bit. 
llvm-svn: 31690
 2006-11-11 22:22:07 +00:00
Chris Lattner
b5aefe29ae implement proper PPC64 prolog/epilog codegen. 
llvm-svn: 31684
 2006-11-11 19:05:28 +00:00
Jim Laskey
f5bffa5670 Running with frame pointers prevented debugging, external probes and 
potentially some system calls/exception handling from working.  TOS must always
link to previous frame.  This is a short term workaround until alloca scheme is
reworked.

llvm-svn: 31677
 2006-11-11 10:21:58 +00:00
Chris Lattner
1409347c13 allow the offset of a preinc'd load to be the low-part of a global. This 
produces this clever code:

_millisecs:
        lis r2, ha16(_Time.1182)
        lwzu r3, lo16(_Time.1182)(r2)
        lwz r2, 4(r2)
        addic r4, r2, 1
        addze r3, r3
        blr

instead of this:

_millisecs:
        lis r2, ha16(_Time.1182)
        la r3, lo16(_Time.1182)(r2)
        lwz r2, lo16(_Time.1182)(r2)
        lwz r3, 4(r3)
        addic r4, r3, 1
        addze r3, r2
        blr

for:

long %millisecs() {
        %tmp = load long* %Time.1182            ; <long> [#uses=1]
        %tmp1 = add long %tmp, 1                ; <long> [#uses=1]
        ret long %tmp1
}

llvm-svn: 31673
 2006-11-11 04:53:30 +00:00
Chris Lattner
3d48461071 Mark operands as symbol lo instead of imm32 so that they print lo(x) around 
globals.

llvm-svn: 31672
 2006-11-11 04:51:36 +00:00
Chris Lattner
9c5d395b0e ppc64 doesn't have lwau, don't attempt to form it. 
llvm-svn: 31656
 2006-11-11 00:08:42 +00:00
Chris Lattner
1aaa5f904c implement preinc support for r+i loads on ppc64 
llvm-svn: 31654
 2006-11-10 23:58:45 +00:00
Chris Lattner
5e975945a5 dform 8/9 are identical to dform 1 
llvm-svn: 31637
 2006-11-10 17:51:02 +00:00
Chris Lattner
1604b6a873 add an initial cut at preinc loads for ppc32. This is broken for ppc64 
(because the 64-bit reg target versions aren't implemented yet), doesn't
support r+r addr modes, and doesn't handle stores, but it works otherwise. :)

This is disabled unless -enable-ppc-preinc is passed to llc for now.

llvm-svn: 31621
 2006-11-10 02:08:47 +00:00
Chris Lattner
15c49af63f add note about ugly codegen with preinc 
llvm-svn: 31617
 2006-11-10 01:33:53 +00:00
Evan Cheng
d7df1a37bc PPC supports i32 / i64 pre-inc load / store. 
llvm-svn: 31599
 2006-11-09 19:11:50 +00:00
Evan Cheng
89ee587963 Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31595
 2006-11-09 17:55:04 +00:00
Evan Cheng
736a8eb3cd Match tblegen changes. 
llvm-svn: 31571
 2006-11-08 20:34:28 +00:00
Chris Lattner
bd39c99fd1 Refactor all the addressing mode selection stuff into the isel lowering 
class, where it can be used for preinc formation.

llvm-svn: 31536
 2006-11-08 02:15:41 +00:00
Chris Lattner
35fb10e1a4 correct the (currently unused) pattern for lwzu. 
llvm-svn: 31535
 2006-11-08 02:13:12 +00:00
Chris Lattner
f64e5f5f3e add a note from viterbi 
llvm-svn: 31506
 2006-11-07 18:30:21 +00:00
Chris Lattner
bed20e1a25 fix encoding of BLR 
llvm-svn: 31485
 2006-11-07 01:51:50 +00:00
Chris Lattner
a193c9c977 encode BLR predicate info for the JIT 
llvm-svn: 31450
 2006-11-04 05:42:48 +00:00
Chris Lattner
a7687f805c Go through all kinds of trouble to mark 'blr' as having a predicate operand 
that takes a register and condition code.  Print these pieces of BLR the
right way, even though it is currently set to 'always'.

Next up: get the JIT encoding right, then enhance branch folding to produce
predicated blr for simple examples.

llvm-svn: 31449
 2006-11-04 05:27:39 +00:00