Commit Graph

1853 Commits

Author SHA1 Message Date
Chris Lattner 1ef9cd400d eliminate static ctors for Statistic objects.
llvm-svn: 32703
2006-12-19 22:59:26 +00:00
Rafael Espindola d7998d0e6d move ExtWeakSymbols to AsmPrinter
llvm-svn: 32648
2006-12-18 03:37:18 +00:00
Chris Lattner 360a14be02 Apply B. Scott Michel's patch for PR1054, thanks!
llvm-svn: 32630
2006-12-16 20:23:42 +00:00
Jim Laskey a0850e98ee Patterns no longer needed due to fix in the DAG combiner.
llvm-svn: 32612
2006-12-15 21:39:31 +00:00
Jim Laskey 73d307d12d Not all test cases are created equal. This fix is needed.
llvm-svn: 32605
2006-12-15 18:51:01 +00:00
Jim Laskey 38b1d53afe 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 b0367c987e Missing load/store relocations.
llvm-svn: 32601
2006-12-15 16:44:10 +00:00
Jim Laskey 36d826dca2 Provide 64-bit support for i64 sextload<i8>.
llvm-svn: 32600
2006-12-15 14:34:11 +00:00
Jim Laskey f07cc990dd Provide support for FP_TO_UINT.
llvm-svn: 32599
2006-12-15 14:32:57 +00:00
Jim Laskey 59e7a777da Honor cpu directive, take two.
llvm-svn: 32492
2006-12-12 20:57:08 +00:00
Jim Laskey 8171e58bd9 Rollback changes to take a different tack.
llvm-svn: 32488
2006-12-12 19:26:50 +00:00
Jim Laskey 7c3cab9ddc Honor the command line specification for machine type.
llvm-svn: 32483
2006-12-12 16:07:33 +00:00
Jim Laskey 095e6f3044 Reduce number of instructions to load 64-bit constants.
llvm-svn: 32481
2006-12-12 13:23:43 +00:00
Chris Lattner f4646a7e54 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 b1f3157638 getInstrItineraryData shouldn't copy the itineraries
llvm-svn: 32448
2006-12-11 21:42:55 +00:00
Jim Laskey 2b136a73bd Missing opcode.
llvm-svn: 32439
2006-12-11 18:45:56 +00:00
Jim Laskey e95909a4ef Layout proper frame for ppc64.
llvm-svn: 32436
2006-12-11 18:10:54 +00:00
Nate Begeman e8da58b3f9 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 3b7c257cae 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 6af2220815 Reverting until finding the cause of secondary bugs.
llvm-svn: 32413
2006-12-10 13:09:42 +00:00
Jim Laskey 04c832d4ab __PPC64CompilationCallback code was allowing registers to be clobbered by stub.
llvm-svn: 32412
2006-12-10 12:13:31 +00:00
Chris Lattner 09fecf9a47 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 13535c2d93 fix incorrect encoding of rldicr, used by ppc64 function stubs, etc.
llvm-svn: 32341
2006-12-07 23:44:07 +00:00
Bill Wendling 9bfb1e1f29 What should be the last unnecessary <iostream>s in the library.
llvm-svn: 32333
2006-12-07 22:21:48 +00:00
Chris Lattner a9a817dc7d fix CodeGen/PowerPC/2006-12-07-LargeAlloca.ll on ppc64
llvm-svn: 32331
2006-12-07 22:15:58 +00:00
Chris Lattner d8e7451dc3 Fix i64 uint_to_fp on ppc64
llvm-svn: 32297
2006-12-07 01:24:16 +00:00
Chris Lattner 43c0eb839c implement sextinreg i8->i64 and i16->i64
llvm-svn: 32293
2006-12-06 21:46:13 +00:00
Chris Lattner 9472eb83c3 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 aeadac88ea fix the jit encoding of sradi, simplify the MDForm1 description.
llvm-svn: 32285
2006-12-06 20:02:54 +00:00
Chris Lattner 1fa392dbfa add relocation support for ppc64 branches.
llvm-svn: 32284
2006-12-06 19:40:04 +00:00
Chris Lattner 700b873130 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 527c12f8e6 Make it easier for gdb to find the return address.
llvm-svn: 32277
2006-12-06 17:42:06 +00:00
Jim Laskey e4f4d048dd 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 022030a425 Add weak reference directive.
llvm-svn: 32091
2006-12-01 20:47:11 +00:00
Evan Cheng b689d32b20 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 1b0bc794e6 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 311622f912 ExternalWeak case in wrong location.
llvm-svn: 32073
2006-12-01 14:37:39 +00:00
Evan Cheng 5fb2c76d59 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 fa54c0b6fb Darwin PPC external weak linkage support.
llvm-svn: 32068
2006-12-01 07:56:37 +00:00
Chris Lattner 09ed0ff2ac Fix the CodeGen/PowerPC/vec_constants.ll regression.
llvm-svn: 32057
2006-12-01 01:45:39 +00:00
Evan Cheng aafeaef8c8 MachineInstr::setOpcode -> MachineInstr::setInstrDescriptor
llvm-svn: 32034
2006-11-30 07:12:03 +00:00
Chris Lattner 2f648fc55d 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 152671f0bf 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 40182179b6 Remove debug code.
llvm-svn: 31970
2006-11-28 18:27:02 +00:00
Jim Laskey ec05b046c7 Prime text sections to improve branch locality in large object files.
llvm-svn: 31969
2006-11-28 18:21:52 +00:00
Jim Laskey f4e2e009d9 32-bit int space was not accounted for properly in lowerCall.
llvm-svn: 31966
2006-11-28 14:53:52 +00:00
Evan Cheng 20350c4025 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 6968c497de Add newline at end of file.
llvm-svn: 31902
2006-11-25 05:41:02 +00:00
Chris Lattner ec5dbccdcf 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 ac36360348 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 2cca385fbb 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 572e238c14 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 9ca15c8914 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 542dfd5510 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 33fc1d45e5 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 be9377a1e3 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 e0263794f4 rename PPC::COND_BRANCH to PPC::BCC
llvm-svn: 31834
2006-11-17 22:14:47 +00:00
Chris Lattner 8c6a41ea12 start using PPC predicates more consistently.
llvm-svn: 31833
2006-11-17 22:10:59 +00:00
Jim Laskey 73106b5e2a Assert unhandled case.
llvm-svn: 31828
2006-11-17 18:49:39 +00:00
Jim Laskey 1823346b3e 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 91542a4f2d Typo. Fix the nightly tests.
llvm-svn: 31823
2006-11-17 14:06:41 +00:00
Chris Lattner 3b7261b18e implement a todo: change a map into a vector
llvm-svn: 31805
2006-11-17 01:52:23 +00:00
Chris Lattner be1a4d80b3 fix typo
llvm-svn: 31799
2006-11-17 00:49:36 +00:00
Chris Lattner a715288b40 implicit_def_vrrc doesn't generate code.
llvm-svn: 31797
2006-11-16 23:49:52 +00:00
Jim Laskey 48850c10c0 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 30055b9208 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 96d7386006 add a statistic
llvm-svn: 31785
2006-11-16 18:13:49 +00:00
Chris Lattner a7ff5162b0 fix broken encoding
llvm-svn: 31778
2006-11-16 01:01:28 +00:00
Chris Lattner e742d9a4b7 add ppc64 r+i stores with update.
llvm-svn: 31776
2006-11-16 00:57:19 +00:00
Chris Lattner 6f5840c409 add patterns for ppc32 preinc stores. ppc64 next.
llvm-svn: 31775
2006-11-16 00:41:37 +00:00
Chris Lattner 3a494989a6 switch these back to the 'bad old way'
llvm-svn: 31774
2006-11-16 00:33:34 +00:00
Chris Lattner b4e911d15a Fix ppc64 epilog bug.
llvm-svn: 31771
2006-11-15 23:35:30 +00:00
Chris Lattner 5771156be0 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 dc2c8748a7 Properly transfer kill / dead info.
llvm-svn: 31765
2006-11-15 20:58:11 +00:00
Chris Lattner 474b5b7c95 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 0e117c7e9d Fix the PPC regressions last night
llvm-svn: 31752
2006-11-15 17:40:51 +00:00
Chris Lattner 1396961e85 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 e79a451475 group load and store instructions together. No functionality change.
llvm-svn: 31736
2006-11-14 19:19:53 +00:00
Chris Lattner 44dbdbe5cf 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 b542925b22 remove a ton of custom selection logic no longer needed
llvm-svn: 31733
2006-11-14 18:43:11 +00:00
Chris Lattner 97ff46b3cc 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 683712583a minor tweaks, reject vector preinc.
llvm-svn: 31717
2006-11-14 01:38:31 +00:00
Evan Cheng dbd3d294e6 Matches MachineInstr changes.
llvm-svn: 31712
2006-11-13 23:36:35 +00:00
Chris Lattner 1121e50f7e 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 1dfc6110ff Make sure stack link is set in 64-bit.
llvm-svn: 31690
2006-11-11 22:22:07 +00:00
Chris Lattner 0d550cc56c implement proper PPC64 prolog/epilog codegen.
llvm-svn: 31684
2006-11-11 19:05:28 +00:00
Jim Laskey 66c502b54a 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 c5102bfc7c 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 2ff632c54b 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 b314b155ed ppc64 doesn't have lwau, don't attempt to form it.
llvm-svn: 31656
2006-11-11 00:08:42 +00:00
Chris Lattner c9fa36d706 implement preinc support for r+i loads on ppc64
llvm-svn: 31654
2006-11-10 23:58:45 +00:00
Chris Lattner 6c8656a6b1 dform 8/9 are identical to dform 1
llvm-svn: 31637
2006-11-10 17:51:02 +00:00
Chris Lattner ce6455489a 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 cd436327f1 add note about ugly codegen with preinc
llvm-svn: 31617
2006-11-10 01:33:53 +00:00
Evan Cheng 36a8fbf771 PPC supports i32 / i64 pre-inc load / store.
llvm-svn: 31599
2006-11-09 19:11:50 +00:00
Evan Cheng b15000736c Rename ISD::MemOpAddrMode to ISD::MemIndexedMode
llvm-svn: 31595
2006-11-09 17:55:04 +00:00
Evan Cheng 6cd0909da7 Match tblegen changes.
llvm-svn: 31571
2006-11-08 20:34:28 +00:00
Chris Lattner a801fcedd3 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 6a5a4f85d3 correct the (currently unused) pattern for lwzu.
llvm-svn: 31535
2006-11-08 02:13:12 +00:00
Chris Lattner be7033b346 add a note from viterbi
llvm-svn: 31506
2006-11-07 18:30:21 +00:00
Chris Lattner d94477f6c9 fix encoding of BLR
llvm-svn: 31485
2006-11-07 01:51:50 +00:00
Chris Lattner 2959789c92 encode BLR predicate info for the JIT
llvm-svn: 31450
2006-11-04 05:42:48 +00:00
Chris Lattner 6be726048e 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
Chris Lattner c8a68d08c3 Describe PPC predicates, which are a pair of CR# and condition.
llvm-svn: 31438
2006-11-03 23:53:25 +00:00
Chris Lattner 895d199348 remove dead vars
llvm-svn: 31433
2006-11-03 23:46:45 +00:00
Chris Lattner 2de0910a1b fix a bug reid noticed
llvm-svn: 31385
2006-11-02 23:39:53 +00:00
Reid Spencer de46e48420 For PR786:
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
2006-11-02 20:25:50 +00:00
Chris Lattner 584a11ae22 Implement the getRegForInlineAsmConstraint method for PPC. With recent
sdisel changes, this eliminates a ton of copies around common inline asms.
For example:

int test2(int Y, int X) {
  asm("foo %0, %1" : "=r"(X): "r"(X));
  return X;
}

now compiles to:

_test2:
        foo r3, r4
        blr

instead of:

_test2:
        mr r2, r4
        foo r2, r2
        mr r3, r2
        blr

GCC produces:

_test2:
        foo r4, r4
        mr r3,r4
        blr

llvm-svn: 31367
2006-11-02 01:44:04 +00:00
Chris Lattner 8c6949e5b2 Change the prototype for TargetLowering::isOperandValidForConstraint
llvm-svn: 31318
2006-10-31 19:40:43 +00:00
Anton Korobeynikov aa4c0f9374 1. Clean up code due to changes in SwitchTo*Section(2)
2. Added partial debug support for mingw\cygwin targets (the same as
   Linux\ELF). Please note, that currently mingw\cygwin uses 'stabs' format
   for storing debug info by default, thus many (runtime) libraries has
   this information included. These formats shouldn't be mixed in one binary
   ('stabs' & 'DWARF'), otherwise binutils tools will be confused.

llvm-svn: 31311
2006-10-31 08:31:24 +00:00
Chris Lattner 3e36e07db2 fix miscompilation of llvm.isunordered, where we branched on the opposite
condition.  This fixes miscompilation of Olden/bh and many others.

llvm-svn: 31301
2006-10-30 23:02:25 +00:00
Evan Cheng 0d41d19427 All targets expand BR_JT for now.
llvm-svn: 31294
2006-10-30 08:02:39 +00:00
Chris Lattner 113f7470e6 implement the BlockHasNoFallThrough hook
llvm-svn: 31264
2006-10-28 17:35:02 +00:00
Evan Cheng ae8c29a7d3 Doh. Must check if GV is constant first before putting it in .cstring.
llvm-svn: 31253
2006-10-28 05:56:51 +00:00
Chris Lattner acc6b37d0d don't dist internal readme's
llvm-svn: 31246
2006-10-28 00:49:54 +00:00
Chris Lattner 28174f5a3a this doesn't occur any more in mason
llvm-svn: 31236
2006-10-27 22:02:19 +00:00
Chris Lattner 4c0cc53da1 the code in question is now:
cmpw cr0, r7, r3
        ble cr0, LBB1_5 ;bb25
LBB1_8: ;bb17
        cmpw cr0, r8, r5
        bgt cr0, LBB1_2 ;bb

which is just as good as crnand.

llvm-svn: 31235
2006-10-27 22:00:55 +00:00
Evan Cheng e1e06c2de8 Place cstrings in .cstring section.
llvm-svn: 31207
2006-10-26 21:48:57 +00:00
Devang Patel 71b99297aa Move getPreferredAlignmentLog from AsmPrinter to TargetData
llvm-svn: 31171
2006-10-24 20:32:14 +00:00
Chris Lattner d43e8a7429 Add intrinsics for the rest of the DCB* instructions.
llvm-svn: 31148
2006-10-24 01:08:42 +00:00
Chris Lattner 23f22de26f Implement support for branch reversal, fix a bug in branch analysis.
This provides stuff like:

        cmpw cr0, r15, r29
        mr r14, r15
-       bge cr0, LBB3_111       ;bb656
-       b LBB3_90       ;bb501
+       blt cr0, LBB3_90        ;bb501
 LBB3_111:      ;bb656
        lwz r18, 68(r1)

which is particularly good for dispatch group formation.

llvm-svn: 31101
2006-10-21 06:03:11 +00:00
Chris Lattner d881660366 Simplify code, no functionality change
llvm-svn: 31097
2006-10-21 05:42:09 +00:00
Chris Lattner 94e04442eb implement support for inserting a cond branch
llvm-svn: 31096
2006-10-21 05:36:13 +00:00
Chris Lattner 454436dcc5 set the ppc64 stack pointer right, dynamic alloca now works for ppc64
llvm-svn: 31028
2006-10-18 01:20:43 +00:00
Chris Lattner ab4df83426 Expand alloca for ppc64
llvm-svn: 31027
2006-10-18 01:18:48 +00:00
Chris Lattner 0408e5b7ce expose DWARF_LABEL opcode# so the branch folder can update debug info properly.
llvm-svn: 31024
2006-10-17 22:41:45 +00:00
Chris Lattner a61f0105bd add support for inserting an uncond branch
llvm-svn: 31003
2006-10-17 18:06:55 +00:00
Jim Laskey 2794184191 Use S_debug for dwarf info.
llvm-svn: 30994
2006-10-17 11:30:57 +00:00
Chris Lattner a47294ed7a implement branch inspection/modification methods.
llvm-svn: 30946
2006-10-13 21:21:17 +00:00
Evan Cheng ab51cf2e78 Merge ISD::TRUNCSTORE to ISD::STORE. Switch to using StoreSDNode.
llvm-svn: 30945
2006-10-13 21:14:26 +00:00
Chris Lattner be131662c3 add note
llvm-svn: 30937
2006-10-13 20:20:58 +00:00
Chris Lattner cf56917053 set isBarrier correctly
llvm-svn: 30936
2006-10-13 19:10:34 +00:00
Chris Lattner 4dc4f30a48 Correctly handle instruction separators.
llvm-svn: 30935
2006-10-13 17:56:02 +00:00
Chris Lattner 7374bc0577 mark adjcallstack up/down as clobbering and using the SP
llvm-svn: 30908
2006-10-12 17:56:34 +00:00
Evan Cheng 577ef7694e Add properties to ComplexPattern.
llvm-svn: 30891
2006-10-11 21:03:53 +00:00
Evan Cheng e71fe34d75 Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes.
llvm-svn: 30844
2006-10-09 20:57:25 +00:00
Evan Cheng df9ac47e5e Make use of getStore().
llvm-svn: 30759
2006-10-05 23:01:46 +00:00
Chris Lattner 8cfd10eff3 Don't bother setting JumpTableTextSection, it is about to disappear
llvm-svn: 30745
2006-10-05 03:13:59 +00:00
Chris Lattner a6a570e02f Pass the MachineFunction into EmitJumpTableInfo.
llvm-svn: 30742
2006-10-05 03:01:21 +00:00
Chris Lattner 028d663ee6 Move getSectionForFunction to AsmPrinter, change it to return a string.
llvm-svn: 30735
2006-10-05 02:42:20 +00:00
Chris Lattner 0d236450aa implement DarwinTargetAsmInfo::getSectionForFunction, use it when outputting
function bodies

llvm-svn: 30733
2006-10-05 00:35:50 +00:00
Chris Lattner 41e22a5419 emit jump table before debug info
llvm-svn: 30731
2006-10-05 00:26:05 +00:00
Chris Lattner aad26a19f0 Always emit the jump table after the function so it's part of the same 'atom'
as the function body.

llvm-svn: 30730
2006-10-05 00:24:46 +00:00
Evan Cheng 5d9fd977d3 Combine ISD::EXTLOAD, ISD::SEXTLOAD, ISD::ZEXTLOAD into ISD::LOADX. Add an
extra operand to LOADX to specify the exact value extension type.

llvm-svn: 30714
2006-10-04 00:56:09 +00:00
Chris Lattner d32cb5ee7f wrap long lines
llvm-svn: 30662
2006-09-28 23:32:43 +00:00
Chris Lattner 78370606d0 Shift amounts are always 32-bits, even in 64-bit mode. This fixes
CodeGen/PowerPC/2006-09-28-shift_64.ll

llvm-svn: 30652
2006-09-28 20:48:45 +00:00
Chris Lattner 67f8cc51f4 Use abstract private/comment directives, to increase portability to ppc/linux
llvm-svn: 30621
2006-09-27 02:55:21 +00:00
Chris Lattner ad4e7eb59e Compile:
int x __attribute__((used));

to:

        .data
.comm _x,4              ; 'x'
        .no_dead_strip  _x

on both x86 and ppc darwin targets.

llvm-svn: 30605
2006-09-26 03:39:53 +00:00
Nate Begeman d31efd190f Fold AND and ROTL more often
llvm-svn: 30577
2006-09-22 05:01:56 +00:00
Chris Lattner a81a75c390 The DarwinAsmPrinter need not check for isDarwin. createPPCAsmPrinterPass
should create the right asmprinter subclass.

llvm-svn: 30542
2006-09-20 17:12:19 +00:00
Chris Lattner 8597a2fc4e Wrap some darwin'isms with isDarwin checks.
llvm-svn: 30541
2006-09-20 17:07:15 +00:00
Chris Lattner fba9e8f422 item done
llvm-svn: 30518
2006-09-20 06:41:56 +00:00
Chris Lattner f62f090ea1 This is already done
llvm-svn: 30512
2006-09-20 04:59:33 +00:00
Chris Lattner da9b1a9322 Improve PPC64 equality comparisons like PPC32 comparisons.
llvm-svn: 30510
2006-09-20 04:33:27 +00:00
Chris Lattner aa3926b7ea Two improvements:
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next

llvm-svn: 30509
2006-09-20 04:25:47 +00:00
Chris Lattner ab33d350a7 Add a note that we should match rlwnm better
llvm-svn: 30508
2006-09-20 03:59:25 +00:00
Chris Lattner 601b86513d Legalize is no longer limited to cleverness with just constant shift amounts.
Allow it to be clever when possible and fall back to the gross code when needed.

This allows us to compile:

long long foo1(long long X, int C) {
  return X << (C|32);
}
long long foo2(long long X, int C) {
  return X << (C&~32);
}

to:
_foo1:
        rlwinm r2, r5, 0, 27, 31
        slw r3, r4, r2
        li r4, 0
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        slw r3, r3, r2
        srw r5, r4, r5
        or r3, r3, r5
        slw r4, r4, r2
        blr

instead of:

_foo1:
        ori r2, r5, 32
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr


        .globl  _foo2
        .align  4
_foo2:
        rlwinm r2, r5, 0, 27, 25
        subfic r5, r2, 32
        addi r6, r2, -32
        srw r5, r4, r5
        slw r3, r3, r2
        slw r6, r4, r6
        or r3, r3, r5
        slw r4, r4, r2
        or r3, r3, r6
        blr

llvm-svn: 30507
2006-09-20 03:47:40 +00:00
Chris Lattner 3c48ea54ee Fold the PPCISD shifts when presented with 0 inputs. This occurs for code
like:
long long test(long long X, int Y) {
  return 1ULL << Y;
}
long long test2(long long X, int Y) {
  return -1LL << Y;
}

which we used to compile to:

_test:
        li r2, 1
        subfic r3, r5, 32
        li r4, 0
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r4, r5
        slw r6, r2, r6
        or r3, r4, r3
        slw r4, r2, r5
        or r3, r3, r6
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

Now we produce:

_test:
        li r2, 1
        addi r3, r5, -32
        subfic r4, r5, 32
        slw r3, r2, r3
        srw r4, r2, r4
        or r3, r4, r3
        slw r4, r2, r5
        blr
_test2:
        li r2, -1
        subfic r3, r5, 32
        addi r6, r5, -32
        srw r3, r2, r3
        slw r4, r2, r5
        slw r2, r2, r6
        or r3, r4, r3
        or r3, r3, r2
        blr

llvm-svn: 30479
2006-09-19 05:22:59 +00:00
Chris Lattner 2aa98e0363 add a note
llvm-svn: 30377
2006-09-14 20:56:30 +00:00
Evan Cheng 9a083a4121 Reflects MachineConstantPoolEntry changes.
llvm-svn: 30279
2006-09-12 21:04:05 +00:00
Nate Begeman a0d95a8da9 Behold, more work on relocations. Things are looking pretty good now.
llvm-svn: 30240
2006-09-10 23:03:44 +00:00
Nate Begeman 69df6132d7 First pass at supporting relocations. Relocations are written correctly to
the file now, however the relocated address is currently wrong.  Fixing
that will require some deep pondering.

llvm-svn: 30207
2006-09-08 22:42:09 +00:00
Jim Laskey 177405376c Missing tab
llvm-svn: 30188
2006-09-08 13:06:56 +00:00
Nate Begeman c9db83306f We actually do support object file writing, so don't return true (error)
llvm-svn: 30173
2006-09-08 03:42:15 +00:00
Jim Laskey ae92ce8798 1. Remove condition on delete.
2. Protect and outline createTargetAsmInfo.

3. Misc. kruft.

llvm-svn: 30169
2006-09-07 23:39:26 +00:00
Jim Laskey 261779bb45 Make target asm info a property of the target machine.
llvm-svn: 30162
2006-09-07 22:06:40 +00:00
Jim Laskey 0e83541f8b Break out target asm info into separate files.
llvm-svn: 30161
2006-09-07 22:05:02 +00:00
Jim Laskey a6211dcdad Separate target specific asm properties from the asm printers.
llvm-svn: 30126
2006-09-06 18:34:40 +00:00
Chris Lattner af23f9b5f6 Completely eliminate def&use operands. Now a register operand is EITHER a
def operand or a use operand.

llvm-svn: 30109
2006-09-05 02:31:13 +00:00
Chris Lattner 12e97307a1 Completely rearchitect the interface between targets and the pass manager.
This pass:

1. Splits TargetMachine into TargetMachine (generic targets, can be implemented
any way, like the CBE) and LLVMTargetMachine (subclass of TM that is used by
things using libcodegen and other support).
2. Instead of having each target fully populate the passmgr for file or JIT
   output, move all this to common code, and give targets hooks they can
   implement.
3. Commonalize the target population stuff between file emission and JIT
   emission.
4. All (native code) codegen stuff now happens in a FunctionPassManager, which
   paves the way for "fast -O0" stuff in the CFE later, and now LLC could
   lazily stream .bc files from disk to use less memory.
5. There are now many fewer #includes and the targets don't depend on the
   scalar xforms or libanalysis anymore (but codegen does).
6. Changing common code generator pass ordering stuff no longer requires
   touching all targets.
7. The JIT now has the option of "-fast" codegen or normal optimized codegen,
   which is now orthogonal to the fact that JIT'ing is being done.

llvm-svn: 30081
2006-09-04 04:14:57 +00:00
Chris Lattner 0fc4541c67 Simplify target construction.
llvm-svn: 30070
2006-09-03 18:44:02 +00:00
Jim Laskey 2eebe8b05e Handle callee saved registers in dwarf frame info (lead up to exception
handling.)

llvm-svn: 29954
2006-08-29 16:24:26 +00:00
Nate Begeman 18f0329cfc Make ppc64 jit kinda work right. About 2/3 of Olden passes with this,
there are clearly some encoding bugs lurking in there somewhere.

llvm-svn: 29949
2006-08-29 02:30:59 +00:00
Reid Spencer e7141c8be6 For PR387:
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
2006-08-28 01:02:49 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Evan Cheng c3acfc0b10 Do not use getTargetNode() and SelectNodeTo() which takes more than 3
SDOperand arguments. Use the variants which take an array and number instead.

llvm-svn: 29907
2006-08-27 08:14:06 +00:00
Evan Cheng 34b70eea5c SelectNodeTo now returns a SDNode*.
llvm-svn: 29901
2006-08-26 08:00:10 +00:00
Evan Cheng 61413a3d72 Select() no longer require Result operand by reference.
llvm-svn: 29898
2006-08-26 05:34:46 +00:00
Evan Cheng ab8297f92d Match tblgen changes.
llvm-svn: 29895
2006-08-26 01:07:58 +00:00
Evan Cheng 1b200574ad Add a comment.
llvm-svn: 29889
2006-08-25 23:29:06 +00:00
Evan Cheng d7572fb234 Encode pc-relative conditional branch offset as pc+(num of bytes / 4). The
asm printer will print it as offset*4. e.g. bne cr0, $+8.

The PPC code emitter was expecting the offset to be number of instructions, not
number of bytes. This fixes a whole bunch of JIT failures.

llvm-svn: 29885
2006-08-25 21:54:44 +00:00
Jim Laskey d51ce619c3 Fix some comments.
llvm-svn: 29880
2006-08-25 19:40:59 +00:00
Nate Begeman 3cb3921a60 Initial checkin of the Mach-O emitter. There's plenty of fixmes, but it
does emit linkable .o files in very simple cases.

llvm-svn: 29850
2006-08-23 21:08:52 +00:00
Chris Lattner 60f1eecd3a Constify some methods. Patch provided by Anton Vayvod, thanks!
llvm-svn: 29756
2006-08-17 22:00:08 +00:00
Chris Lattner bc485fdc4c Fix PowerPC/2006-08-15-SelectionCrash.ll and simplify selection code.
llvm-svn: 29715
2006-08-15 23:48:22 +00:00
Nate Begeman 984c1a4a8f Emit .set directives for jump table entries when possible, which reduces
the number of relocations in object files, shrinkifying them.

llvm-svn: 29650
2006-08-12 21:29:52 +00:00
Chris Lattner 095e4ad2ea Fix a bug in a recent refactoring that broke a bunch of stuff.
llvm-svn: 29649
2006-08-12 07:20:05 +00:00
Chris Lattner ed728e8dc9 Eliminate use of getNode that takes a vector.
llvm-svn: 29614
2006-08-11 17:38:39 +00:00
Chris Lattner d66f14e846 Convert vectors to fixed sized arrays and smallvectors. Eliminate use of getNode that takes a vector.
llvm-svn: 29609
2006-08-11 17:18:05 +00:00
Chris Lattner 66f1fbaaad Fix miscompilation of float vector returns. Compile code to this:
_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
        blr

instead of:

_func:
        vsldoi v2, v3, v2, 12
        vsldoi v2, v2, v2, 4
***     vor f1, v2, v2
        blr

llvm-svn: 29607
2006-08-11 16:47:32 +00:00
Evan Cheng bd1c5a8fb8 Match tablegen changes.
llvm-svn: 29604
2006-08-11 09:08:15 +00:00
Evan Cheng 81b645a76b CALLSEQ_* produces chain even if that's not needed.
llvm-svn: 29603
2006-08-11 09:03:33 +00:00
Chris Lattner c24a1d3093 Start eliminating temporary vectors used to create DAG nodes. Instead, pass
in the start of an array and a count of operands where applicable.  In many
cases, the number of operands is known, so this static array can be allocated
on the stack, avoiding the heap.  In many other cases, a SmallVector can be
used, which has the same benefit in the common cases.

I updated a lot of code calling getNode that takes a vector, but ran out of
time.  The rest of the code should be updated, and these methods should be
removed.

We should also do the same thing to eliminate the methods that take a
vector of MVT::ValueTypes.

It would be extra nice to convert the dagiselemitter to avoid creating vectors
for operands when calling getTargetNode.

llvm-svn: 29566
2006-08-08 02:23:42 +00:00
Evan Cheng b9d34bd098 Match tablegen isel changes.
llvm-svn: 29549
2006-08-07 22:28:20 +00:00
Chris Lattner 8298265042 Fix some ppc64 issues with vector code.
llvm-svn: 29384
2006-07-28 16:45:47 +00:00
Evan Cheng b572401bea Remove InFlightSet hack. No longer needed.
llvm-svn: 29373
2006-07-28 00:47:19 +00:00
Evan Cheng 78bf1074fc Resolve BB references with relocation.
llvm-svn: 29351
2006-07-27 18:21:10 +00:00
Evan Cheng 7ec7b467df synchronizeICache removeed from TargetJITInfo.
llvm-svn: 29348
2006-07-27 17:33:48 +00:00
Evan Cheng f300896420 Remove NodeDepth
llvm-svn: 29338
2006-07-27 06:40:15 +00:00
Nate Begeman 787565024a Support jump tables when in PIC relocation model
llvm-svn: 29318
2006-07-27 01:13:04 +00:00