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16109 Commits

Author SHA1 Message Date
Chris Lattner
632c66b8ef This xform is handled by FoldOpIntoPhi in visitCastInst in a more elegant way. 
llvm-svn: 31889
 2006-11-21 17:05:13 +00:00
Anton Korobeynikov
ddb73b4f1e Refactored *GVRequiresExtraLoad() to Subtarget method. 
llvm-svn: 31887
 2006-11-21 00:01:06 +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
Jim Laskey
cd74ba8ae1 Global label not handled correctly. 
llvm-svn: 31883
 2006-11-20 20:29:06 +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
86e39c84b6 Fix codegen for x86-64 on systems (like ppc or i386) that don't have 64-bit 
features autodetected.  This fixes PR1010 and Regression/CodeGen/X86/xmm-r64.ll
on non-x86-64 hosts.

llvm-svn: 31879
 2006-11-20 18:16:05 +00:00
Chris Lattner
a2bbd246e0 Fix PR1011 and CodeGen/Generic/2006-11-20-DAGCombineCrash.ll 
llvm-svn: 31878
 2006-11-20 18:05:46 +00:00
Chris Lattner
31f45746ad setOperand should not zap the operand list or add implicit operands to an 
instruction.  Doing so breaks the FP stackifier, the alpha branch selector
the sparc fpmover.

This fixes PR1012 and CodeGen/X86/fp-stack-compare.ll

llvm-svn: 31876
 2006-11-20 17:57:22 +00:00
Anton Korobeynikov
2449b29bdd We should perform extra load for dllimported calls 
llvm-svn: 31874
 2006-11-20 10:46:14 +00:00
Reid Spencer
6e34ef887b For PR950: 
First in a series of patches to convert SetCondInst into ICmpInst and
FCmpInst using only two opcodes and having the instructions contain their
predicate value. Nothing uses these classes yet. More patches to follow.

llvm-svn: 31867
 2006-11-20 01:22:35 +00:00
Reid Spencer
5487228419 For PR950: 
Retain the signedness of the old integer types in a new TypeInfo structure
so that it can be used in the grammar to implement auto-upgrade of things
that depended on signedness of types. This doesn't implement any new
functionality in the AsmParser, its just plumbing for future changes.

llvm-svn: 31866
 2006-11-19 23:07:00 +00:00
Chris Lattner
4946ae54df Don't transform in another bad case: if the block is empty, it should be 
simplified before we do this xform so that our cost model is accurate.

llvm-svn: 31864
 2006-11-18 22:25:39 +00:00
Chris Lattner
b101c06bce Fix another case we *don't* want to do this xform. 
llvm-svn: 31861
 2006-11-18 21:56:39 +00:00
Chris Lattner
3a34164b82 Implement operator<< for machine basic blocks to make it easier to dump them. 
llvm-svn: 31857
 2006-11-18 21:47:36 +00:00
Chris Lattner
514fc3de5c make the previous change more aggressive, moving any block with no fallthrough. 
This speeds up yacr2 by 7% on a core2.

llvm-svn: 31856
 2006-11-18 21:30:35 +00:00
Chris Lattner
bddc114cfb Minor code layout tweak: if we have something like this: 
if (cond) goto BB2
BB1:
    ...
    return;
BB2:
   ...

Move BB1 to the end of the function so that the code falls through in the
non-return case.  This has the effect of moving assert (and other no-return
call) bodies and return blocks out of loops.

llvm-svn: 31855
 2006-11-18 20:47:54 +00:00
Chris Lattner
cdb67482da Do not convert massive blocks on phi nodes into select statements. Instead 
only do these transformations if there are a small number of phi's.
This speeds up Ptrdist/ks from 2.35s to 2.19s on my mac pro.

llvm-svn: 31853
 2006-11-18 19:19:36 +00:00
Reid Spencer
c7a1e60e44 Have ConstantExprs upgrade opcodes the same way as instructions. 
llvm-svn: 31841
 2006-11-18 04:37:19 +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
Evan Cheng
a9176b38f9 For unsigned 8-bit division. Use movzbw to set the lower 8 bits of AX while 
clearing the upper 8-bits instead of issuing two instructions. This also
eliminates the need to target the AH register which can be problematic on
x86-64.

llvm-svn: 31832
 2006-11-17 22:10:14 +00:00
Jim Laskey
bc27bd0c6e Hopefully a good crack at making debugging work on intel -disable-fp-elim. 
llvm-svn: 31830
 2006-11-17 21:19:15 +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
Jim Laskey
a87c9d8905 Fixing the ENABLE_OPTIMIZED=1 DISABLE_ASSERTIONS=1 build. 
llvm-svn: 31822
 2006-11-17 13:07:55 +00:00
Bill Wendling
a3ba38284c Moved definition of llvm_ostream wrappers to the Streams.cpp file. 
llvm-svn: 31819
 2006-11-17 09:54:47 +00:00
Bill Wendling
dbbb5112c5 Added wrappers for the std::cerr/std::cout objects. The wrappers will 
soon replace all uses of those objects.

llvm-svn: 31817
 2006-11-17 09:51:22 +00:00
Bill Wendling
2f40f19e0d Needed <iostream> for now. 
llvm-svn: 31816
 2006-11-17 09:44:28 +00:00
Bill Wendling
42b8ad7362 Needs the iostream include. 
llvm-svn: 31815
 2006-11-17 09:38:03 +00:00
Bill Wendling
1838be30c7 Removed iostream #includes. Replaced std::cerr with DOUT. 
llvm-svn: 31814
 2006-11-17 08:03:48 +00:00
Bill Wendling
b6061e32fa Removed even more std::cerr and #include <iostream> things. 
llvm-svn: 31813
 2006-11-17 07:52:03 +00:00
Bill Wendling
e4bdd79300 Replaced DEBUG(std::cerr with DOUT. 
llvm-svn: 31812
 2006-11-17 07:36:54 +00:00
Bill Wendling
ccae1fe7c7 Replace DEBUG(std::cerr with DOUT. Removed some iostream #includes. 
llvm-svn: 31811
 2006-11-17 07:33:59 +00:00
Bill Wendling
3244a7dc35 Removed unneeded <iostream> #include. 
llvm-svn: 31810
 2006-11-17 07:10:51 +00:00
Chris Lattner
cc4df7e0ab If an indvar with a variable stride is used by the exit condition, go ahead 
and handle it like constant stride vars.  This fixes some bad codegen in
variable stride cases.  For example, it compiles this:

void foo(int k, int i) {
  for (k=i+i; k <= 8192; k+=i)
    flags2[k] = 0;
}

to:

LBB1_1: #bb.preheader
        movl %eax, %ecx
        addl %ecx, %ecx
        movl L_flags2$non_lazy_ptr, %edx
LBB1_2: #bb
        movb $0, (%edx,%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB1_2      #bb
LBB1_5: #return
        ret

or (if the array is local and we are in dynamic-nonpic or static mode):

LBB3_2: #bb
        movb $0, _flags2(%ecx)
        addl %eax, %ecx
        cmpl $8192, %ecx
        jle LBB3_2      #bb

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        slwi r3, r4, 1
LBB1_2: ;bb
        li r5, 0
        add r6, r4, r3
        stbx r5, r2, r3
        cmpwi cr0, r6, 8192
        bgt cr0, LBB1_5 ;return

instead of:

        leal (%eax,%eax,2), %ecx
        movl %eax, %edx
        addl %edx, %edx
        addl L_flags2$non_lazy_ptr, %edx
        xorl %esi, %esi
LBB1_2: #bb
        movb $0, (%edx,%esi)
        movl %eax, %edi
        addl %esi, %edi
        addl %ecx, %esi
        cmpl $8192, %esi
        jg LBB1_5       #return

and:

        lis r2, ha16(L_flags2$non_lazy_ptr)
        lwz r2, lo16(L_flags2$non_lazy_ptr)(r2)
        mulli r3, r4, 3
        slwi r5, r4, 1
        li r6, 0
        add r2, r2, r5
LBB1_2: ;bb
        li r5, 0
        add r7, r3, r6
        stbx r5, r2, r6
        add r6, r4, r6
        cmpwi cr0, r7, 8192
        ble cr0, LBB1_2 ;bb

This speeds up Benchmarks/Shootout/sieve from 8.533s to 6.464s and
implements LoopStrengthReduce/var_stride_used_by_compare.ll

llvm-svn: 31809
 2006-11-17 06:17:33 +00:00
Bill Wendling
dbea653b5d More removal of std::cerr and DEBUG, replacing with DOUT instead. 
llvm-svn: 31806
 2006-11-17 02:09:07 +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
Bill Wendling
0ae0a45ebe Replace std::cerr uses of the "DEBUG" macro with "DOUT" instead. Removes 
a #include of iostream.

llvm-svn: 31800
 2006-11-17 00:50:36 +00:00
Chris Lattner
e4e113818f fix typo 
llvm-svn: 31799
 2006-11-17 00:49:36 +00:00
Bill Wendling
748f1ae70b Added "DOUT" macro. This is used as a replacement for the std::cerr 
stream. It centralizes the use of std::cerr so that static c'tor/d'tors
aren't scattered around all over the place. The way to use it is like this:

       DOUT << "This is a status line: " << Var << "\n";

If "-debug" is specified, it will print. Otherwise, it'll not print. If
NDEBUG is defined, the DOUT does nothing.

llvm-svn: 31798
 2006-11-17 00:49:12 +00:00
Chris Lattner
237ee79d06 implicit_def_vrrc doesn't generate code. 
llvm-svn: 31797
 2006-11-16 23:49:52 +00:00
Evan Cheng
fc1b3d8bc8 Correct instructions for moving data between GR64 and SSE registers; also correct load i64 / store i64 from v2i64. 
llvm-svn: 31795
 2006-11-16 23:33:25 +00:00
Evan Cheng
a838021d2c Fix a potential bug: MOVPDI2DI, etc. are not copy instructions. 
llvm-svn: 31794
 2006-11-16 23:22:26 +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
Evan Cheng
c653e70b2d Align stubs on 4 byte boundary. This fixes 447.dealII. 
llvm-svn: 31790
 2006-11-16 20:13:34 +00:00
Bill Wendling
49d6a1169f *** empty log message *** 
llvm-svn: 31789
 2006-11-16 20:11:33 +00:00
Evan Cheng
2503d332cd Allow target to specify alignment for function stub. 
llvm-svn: 31788
 2006-11-16 20:04:54 +00:00
Evan Cheng
263c558c13 Match MachineCodeEmitter changes. 
llvm-svn: 31787
 2006-11-16 20:04:04 +00:00
Chris Lattner
41280ae60d add a statistic 
llvm-svn: 31785
 2006-11-16 18:13:49 +00:00
Bill Wendling
bcd11344e9 Don't recompute getNumOperands for each iteration. 
llvm-svn: 31783
 2006-11-16 07:35:18 +00:00
Bill Wendling
985d7e09ec Added a new method "CreateNewLiveInterval" which, given a list of 
LiveRanges, creates a new LiveInterval from them. The LiveRanges should
have existed already in another LiveInterval, but removed.

llvm-svn: 31780
 2006-11-16 02:41:50 +00:00
Chris Lattner
283e7306c1 fix broken encoding 
llvm-svn: 31778
 2006-11-16 01:01:28 +00:00
Chris Lattner
0d40275b0e enable the branch folding pass for the JIT. 
llvm-svn: 31777
 2006-11-16 01:00:07 +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
Evan Cheng
43ba439abd Fix an incorrectly inverted condition. 
llvm-svn: 31773
 2006-11-16 00:08:20 +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
Chris Lattner
1158705ea7 add a new field needed by the code emitter generator. 
llvm-svn: 31768
 2006-11-15 22:55:04 +00:00
Evan Cheng
2a92afa25d Properly transfer kill / dead info. 
llvm-svn: 31765
 2006-11-15 20:58:11 +00:00
Evan Cheng
1b3bde1c1b Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Evan Cheng
4625504fa4 commuteInstruction should propagate kill / dead info. 
llvm-svn: 31763
 2006-11-15 20:56:03 +00:00
Evan Cheng
3ba3e10448 Match live variable changes. 
llvm-svn: 31762
 2006-11-15 20:55:15 +00:00
Evan Cheng
cf45b9fa95 Minor updates. 
llvm-svn: 31761
 2006-11-15 20:54:29 +00:00
Evan Cheng
7b19d271c4 A register def can be partially dead when the whole register has use(s) but a subreg does not. 
llvm-svn: 31760
 2006-11-15 20:54:11 +00:00
Evan Cheng
d79427b22c Do away with kill / dead maps. Move kill / dead info onto MI's. 
llvm-svn: 31759
 2006-11-15 20:51:59 +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
Devang Patel
6060a1e3dc Add run(Function &F) support in FunctionPassManager_New 
llvm-svn: 31756
 2006-11-15 19:39:54 +00:00
Chris Lattner
ccbbe940eb Simplify IntrinsicLowering and clarify that it is only for use by the 
CBE and interpreter.

llvm-svn: 31755
 2006-11-15 18:00:10 +00:00
Chris Lattner
1453db28c3 Remove unneeded forward decls 
llvm-svn: 31754
 2006-11-15 17:53:13 +00:00
Chris Lattner
286bb6e482 remove dead #include 
llvm-svn: 31753
 2006-11-15 17:51:15 +00:00
Chris Lattner
2f520b36ba Fix the PPC regressions last night 
llvm-svn: 31752
 2006-11-15 17:40:51 +00:00
Chris Lattner
0a2d29b345 Fix a gcc 4.2 warning. 
llvm-svn: 31751
 2006-11-15 04:53:24 +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
Devang Patel
c252225cec Tidy up marking of last analysis user pass. 
llvm-svn: 31746
 2006-11-15 01:48:14 +00:00
Devang Patel
343e099f5d Add doInitialization and doFinalization support in FunctionManager_New. 
llvm-svn: 31745
 2006-11-15 01:27:05 +00:00
Devang Patel
55ee589fb9 Do not derive CommonPassManagerImpl from Pass. 
Now BasicBlockPassManager_New is a FunctionPass,
FunctionPassManager_New is a ModulePass

llvm-svn: 31744
 2006-11-15 01:11:27 +00:00
Devang Patel
4f5849544b Copy initializeAnalysisImpl() implementation from PassManagerT. 
Update LastUser to recursively walk required transitive set.

llvm-svn: 31741
 2006-11-14 21:49:36 +00:00
Evan Cheng
7c9b3c7ea3 Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +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
6c55120e31 Fix predicates for unindexed stores so they don't accidentally match indexed 
stores.

llvm-svn: 31735
 2006-11-14 19:13:39 +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
da103686a6 it would be nice of ctlz were lowered to bsf etc. 
llvm-svn: 31730
 2006-11-14 08:08:46 +00:00
Chris Lattner
0114b0c20e implement InstCombine/shift-simplify.ll by transforming: 
(X >> Z) op (Y >> Z)  -> (X op Y) >> Z

for all shifts and all ops={and/or/xor}.

llvm-svn: 31729
 2006-11-14 07:46:50 +00:00
Chris Lattner
616335f272 implement InstCombine/and-compare.ll:test1. This compiles: 
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; }

into:

_foo:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl (%eax), %eax
        xorl (%ecx), %eax
        # TRUNCATE movb %al, %al
        shrb $4, %al
        testb %al, %al
        sete %al
        movzbl %al, %eax
        ret

instead of:

_foo:
        movl 8(%esp), %eax
        movb (%eax), %al
        shrb $4, %al
        movl 4(%esp), %ecx
        movb (%ecx), %cl
        shrb $4, %cl
        cmpb %al, %cl
        sete %al
        movzbl %al, %eax
        ret

saving one cycle by eliminating a shift.

llvm-svn: 31727
 2006-11-14 06:06:06 +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
Andrew Lenharth
6bf99e12a8 A shim over other AA impls to catch incorrect uses 
llvm-svn: 31724
 2006-11-14 05:21:04 +00:00
Reid Spencer
f65a8539ec Discard code that supported old bytecode formats. This makes the Bytecode 
Reader code much easier to read and maintain. Backwards compatibility from
version 5 format has been retained. Older formats will produce an error.

llvm-svn: 31723
 2006-11-14 04:47:22 +00:00
Devang Patel
bb3da3a9a1 Implement removeDeadPasses(). 
llvm-svn: 31722
 2006-11-14 03:05:08 +00:00
Devang Patel
816f60d7e9 Keep track of Last user of analysis phase. 
llvm-svn: 31721
 2006-11-14 02:54:23 +00:00
Devang Patel
2b9bd4aa34 Use std::map to map AnalysisID and Pass. 
llvm-svn: 31720
 2006-11-14 01:59:59 +00:00
Chris Lattner
8913d79def add a note 
llvm-svn: 31719
 2006-11-14 01:57:53 +00:00
Chris Lattner
fdffc51d57 minor tweaks, reject vector preinc. 
llvm-svn: 31717
 2006-11-14 01:38:31 +00:00
Devang Patel
bcc72c8a5a Manage analysis passes during run. 
llvm-svn: 31716
 2006-11-14 01:23:29 +00:00
Devang Patel
fa6da87694 Update comments. 
llvm-svn: 31713
 2006-11-14 00:03:04 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Evan Cheng
7cabf9d02c - Let MachineInstr ctors add implicit def and use operands. Other operands 
will be inserted before these operands. If the opcode changes (by
  setOpcode), the implicit operands are updated as well.
- Added IsKill, IsDead fields to MachineOperand in preparation for changes
  that move kill / dead info to MachineInstr's.

llvm-svn: 31711
 2006-11-13 23:34:06 +00:00
Devang Patel
5297c37d63 Update PassManagerImpl_New::analysisCurrentlyAvailable to check all 
managed passmanagers.

llvm-svn: 31710
 2006-11-13 22:53:19 +00:00
Devang Patel
84dd1c2764 Check currently available anlysis in active managers. 
llvm-svn: 31709
 2006-11-13 22:40:09 +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
Chris Lattner
d23cc47b59 remove redundant code 
llvm-svn: 31697
 2006-11-13 01:10:12 +00:00
Nick Lewycky
f4f28f415d Cute example from Chris Lattner. 
llvm-svn: 31696
 2006-11-13 00:23:28 +00:00
Bill Wendling
839551a7c1 Initialize some pointers to quiet the compiler (when doing build_gcc 
builds).

llvm-svn: 31694
 2006-11-12 11:10:39 +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
Reid Spencer
55d1963049 Remvoe a do-nothing else block. 
llvm-svn: 31687
 2006-11-11 20:27:49 +00:00
Reid Spencer
60a8a2e025 Make an assert comment match the tested assertion. 
llvm-svn: 31686
 2006-11-11 20:07:59 +00:00
Chris Lattner
b5aefe29ae implement proper PPC64 prolog/epilog codegen. 
llvm-svn: 31684
 2006-11-11 19:05:28 +00:00
Reid Spencer
72bcd0530b For PR998: 
Fix an infinite loop in the Linker and a few other assorted link problems.

Patch contributed by Scott Michel. Thanks, Scott!

llvm-svn: 31680
 2006-11-11 11:54:25 +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
Evan Cheng
b9e2ae9e37 Add implicit use / def operands to created MI's. 
llvm-svn: 31676
 2006-11-11 10:21:44 +00:00
Evan Cheng
7dab9abfb8 Add methods to add implicit def use operands to a MI. 
llvm-svn: 31675
 2006-11-11 10:20:02 +00:00
Evan Cheng
f880ed86ff Add all implicit defs to FP_REG_KILL mi. 
llvm-svn: 31674
 2006-11-11 07:19:36 +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
Devang Patel
27cf4a91e7 Implement schedulePasses(). 
llvm-svn: 31671
 2006-11-11 02:22:31 +00:00
Devang Patel
b324dacabf Implement PassManagerImpl_New::add(). 
Just add pass into the pass manager queue without processing analysis.

llvm-svn: 31670
 2006-11-11 02:06:21 +00:00
Devang Patel
f00e57a19c While adding pass into the manager, process Analysis only if it is 
required to do so.

llvm-svn: 31669
 2006-11-11 02:04:19 +00:00
Devang Patel
0eb0bad5e8 Remove dead code. 
llvm-svn: 31668
 2006-11-11 01:56:39 +00:00
Devang Patel
71420afe60 Code refactoring. Move common code into CommonPassManagerImpl :) 
llvm-svn: 31667
 2006-11-11 01:51:02 +00:00
Devang Patel
785d727d1c Move CommonPassManagerImpl from PassManager.h to PassManager.cpp 
llvm-svn: 31666
 2006-11-11 01:31:05 +00:00
Devang Patel
9e926cd9f8 Remove analysis that is not preserved by the pass from AvailableAnalysis. 
llvm-svn: 31665
 2006-11-11 01:24:55 +00:00
Devang Patel
124cfa3f26 Keep track if analysis made available by the pass. 
llvm-svn: 31664
 2006-11-11 01:10:19 +00:00
Chris Lattner
edfc824673 disallow preinc of a frameindex. This is not profitable and causes 2-addr 
pass to explode.  This fixes a bunch of llc-beta failures on ppc last night.

llvm-svn: 31661
 2006-11-11 01:00:15 +00:00
Chris Lattner
bf0c3e3a02 reduce indentation by using early exits. No functionality change. 
llvm-svn: 31660
 2006-11-11 00:56:29 +00:00
Devang Patel
1bff0f0174 Keep track of analysis required by the passes. Force use of new pass 
manager if a pass does not preserve analysis that is used by other
passes.

llvm-svn: 31659
 2006-11-11 00:42:16 +00:00
Chris Lattner
671ea7a93b move big chunks of code out-of-line, no functionality change. 
llvm-svn: 31658
 2006-11-11 00:39:41 +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
65a873caa2 Fix InstCombine/2006-11-10-ashr-miscompile.ll a miscompilation introduced 
by the shr -> [al]shr patch.  This was reduced from 176.gcc.

llvm-svn: 31653
 2006-11-10 23:38:52 +00:00
Evan Cheng
922c8f63b0 Add a note. 
llvm-svn: 31650
 2006-11-10 22:09:17 +00:00
Evan Cheng
8c372dc9b3 These are done. 
llvm-svn: 31649
 2006-11-10 22:03:35 +00:00
Evan Cheng
ae1f3758bd Don't dag combine floating point select to max and min intrinsics. Those 
take v4f32 / v2f64 operands and may end up causing larger spills / restores.
Added X86 specific nodes X86ISD::FMAX, X86ISD::FMIN instead.

This fixes PR996.

llvm-svn: 31645
 2006-11-10 21:43:37 +00:00
Chris Lattner
1f61c6c84d Fix a dag combiner bug exposed by my recent instcombine patch. This fixes 
CodeGen/Generic/2006-11-10-DAGCombineMiscompile.ll and PPC gsm/toast

llvm-svn: 31644
 2006-11-10 21:37:15 +00:00
Devang Patel
a9504181aa s/PassManagerAnalysisHelper/CommonPassManagerImpl 
Inherit CommonPassManagerImpl from Pass.

llvm-svn: 31642
 2006-11-10 21:33:13 +00:00
Evan Cheng
3a017e8abd Fix a bug in SelectScalarSSELoad. Since the load is wrapped in a 
SCALAR_TO_VECTOR, even if the hasOneUse() check pass we may end up folding
the load into two instructions. Make sure we check the SCALAR_TO_VECTOR
has only one use as well.

llvm-svn: 31641
 2006-11-10 21:23:04 +00:00
Chris Lattner
5e975945a5 dform 8/9 are identical to dform 1 
llvm-svn: 31637
 2006-11-10 17:51:02 +00:00
Evan Cheng
de7ff3fa3d Fix a potential bug. 
llvm-svn: 31634
 2006-11-10 09:13:37 +00:00
Evan Cheng
013597778d Add implicit def / use operands to MachineInstr. 
llvm-svn: 31633
 2006-11-10 08:43:01 +00:00
Evan Cheng
78ba99caa5 When forming a pre-indexed store, make sure ptr isn't the same or is a pred of value being stored. It would cause a cycle. 
llvm-svn: 31631
 2006-11-10 08:28:11 +00:00
Chris Lattner
efb62464b9 commentate 
llvm-svn: 31627
 2006-11-10 04:41:34 +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
6f0095807e Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes. 
llvm-svn: 31616
 2006-11-10 01:28:43 +00:00
Anton Korobeynikov
23ffdb1971 Fixing PR990: http://llvm.org/PR990. 
This should unbreak csretcc on Linux & mingw targets. Several tests from
llvm-test should be also restored (fftbench, bigfib).

llvm-svn: 31613
 2006-11-10 00:48:11 +00:00
Chris Lattner
48d2b0af37 add a note about viterbi 
llvm-svn: 31612
 2006-11-10 00:23:26 +00:00
Chris Lattner
4e6c828296 second patch to fix PR992/993. 
llvm-svn: 31610
 2006-11-09 23:36:08 +00:00
Chris Lattner
23d3dac40a Minimal patch to fix PR992/PR993 
llvm-svn: 31608
 2006-11-09 23:17:45 +00:00
Chris Lattner
fd15a7ef64 if lazy compilation is disabled, print an error message and abort if 
lazy compilation is ever attempted

llvm-svn: 31602
 2006-11-09 19:32:13 +00:00
Chris Lattner
ef18cdd6fb init ivar 
llvm-svn: 31601
 2006-11-09 19:31:15 +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
17dd6dd46c Don't attempt expensive pre-/post- indexed dag combine if target does not support them. 
llvm-svn: 31598
 2006-11-09 19:10:46 +00:00
Evan Cheng
c050bb298f Add a mechanism to specify whether a target supports a particular indexed load / store. 
llvm-svn: 31597
 2006-11-09 18:56:43 +00:00
Evan Cheng
22bb3ba200 Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31596
 2006-11-09 18:44:21 +00:00
Evan Cheng
89ee587963 Rename ISD::MemOpAddrMode to ISD::MemIndexedMode 
llvm-svn: 31595
 2006-11-09 17:55:04 +00:00
Jim Laskey
8a5a95d868 Allows debugging llc self hosted. 
llvm-svn: 31594
 2006-11-09 16:32:26 +00:00
Jim Laskey
19fb42c34d Merging dwarf info to a single compile unit. 
llvm-svn: 31593
 2006-11-09 14:52:14 +00:00
Rafael Espindola
5daebfdae0 implement load effective address similar to the alpha backend 
remove lea_addri and the now unused memri addressing mode

llvm-svn: 31592
 2006-11-09 13:58:55 +00:00
Chris Lattner
71c31643ad silence warnings 
llvm-svn: 31587
 2006-11-09 05:18:12 +00:00
Chris Lattner
cd3c5f59e2 Teach ShrinkDemandedConstant how to handle X+C. This implements: 
add.ll:test33, add.ll:test34, shift-sra.ll:test2

llvm-svn: 31586
 2006-11-09 05:12:27 +00:00
Evan Cheng
6b7d127df9 getPostIndexedAddressParts change: passes in load/store instead of its loaded / stored VT. 
llvm-svn: 31584
 2006-11-09 04:29:46 +00:00
Evan Cheng
8743c67826 Remove M_2_ADDR_FLAG. 
llvm-svn: 31583
 2006-11-09 02:22:54 +00:00
Evan Cheng
019b921f3b Added indexed store node and patfrag's. 
llvm-svn: 31576
 2006-11-08 23:02:11 +00:00
Reid Spencer
972e7d7995 Bump the bytecode version number to 7. Implement upgrade of version 6 and 
version 6 bytecode.

llvm-svn: 31573
 2006-11-08 21:27:54 +00:00
Evan Cheng
2edeb17aed Use movl+xchgl instead of pushl+popl. 
llvm-svn: 31572
 2006-11-08 20:35:37 +00:00
Evan Cheng
736a8eb3cd Match tblegen changes. 
llvm-svn: 31571
 2006-11-08 20:34:28 +00:00
Evan Cheng
fcef896f6e Match more post-indexed ops. 
llvm-svn: 31569
 2006-11-08 20:27:27 +00:00
Chris Lattner
d1bcd014a8 reenable factoring of GEP expressions, being more precise about the 
case that it bad to do.

llvm-svn: 31563
 2006-11-08 19:42:28 +00:00
Chris Lattner
77e0e67f23 make this code more efficient by not creating a phi node we are just going to 
delete in the first place.  This also makes it simpler.

llvm-svn: 31562
 2006-11-08 19:29:23 +00:00
Jim Laskey
28fec74f1b Remove redundant <cmath>. 
llvm-svn: 31561
 2006-11-08 19:16:44 +00:00
Chris Lattner
f2cd0aeced disable this factoring optzn for GEPs for now, this severely pessimizes some 
loops.

llvm-svn: 31560
 2006-11-08 18:49:31 +00:00
Rafael Espindola
f7b898d497 initial implementation of addressing mode 2 
TODO: fix lea_addri

llvm-svn: 31552
 2006-11-08 17:07:32 +00:00
John Criswell
335eb0232a Include llvm/Support/DataTypes.h to define intptr_t. 
This fixes the build on OpenBSD and potentially other systems.

llvm-svn: 31550
 2006-11-08 15:04:35 +00:00
Jim Laskey
4d636f03f7 Now can re-enable debug label folding. 
llvm-svn: 31549
 2006-11-08 14:17:45 +00:00
Devang Patel
0aa28c8146 Split FunctionPassManager_New into FunctionPassManager_New and FunctionPassManagerImpl_New. 
FunctionPassManagerImpl_New implements the pass manager.
FunctionPassManager_New is the public interface.

llvm-svn: 31547
 2006-11-08 10:44:40 +00:00
Devang Patel
12982590fa Split PassManager_New into PassManager_New and PassManagerImpl_New. 
PassManagerImpl_New implements the pass manager.
PassManager_New is the public interface.

llvm-svn: 31546
 2006-11-08 10:29:57 +00:00
Devang Patel
03dc236bdd Move BasicBlockPassManager_New, FunctionPassManager_New and 
ModulePassManager_New class declarations from PassManager.h
to PassManager.cpp

llvm-svn: 31545
 2006-11-08 10:05:38 +00:00
Evan Cheng
1f5c4a6c43 - When performing pre-/post- indexed load/store transformation, do not worry 
about whether the new base ptr would be live below the load/store. Let two
  address pass split it back to non-indexed ops.
- Minor tweaks / fixes.

llvm-svn: 31544
 2006-11-08 08:30:28 +00:00
Evan Cheng
acc6a98286 Fixed a minor bug preventing some pre-indexed load / store transformation. 
llvm-svn: 31543
 2006-11-08 06:56:05 +00:00
Reid Spencer
da1f5b882a For PR950: 
This patch converts the old SHR instruction into two instructions,
AShr (Arithmetic) and LShr (Logical). The Shr instructions now are not
dependent on the sign of their operands.

llvm-svn: 31542
 2006-11-08 06:47:33 +00:00
Chris Lattner
d2ebf186dc regenerate 
llvm-svn: 31539
 2006-11-08 05:58:47 +00:00
Chris Lattner
6147da248c Fix a bug noticed by Emil Mikulic. 
llvm-svn: 31538
 2006-11-08 05:58:11 +00:00
Evan Cheng
e50f5e4c05 Fix a obscure post-indexed load / store dag combine bug. 
llvm-svn: 31537
 2006-11-08 02:38:55 +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
Devang Patel
432399869d Beautify. 
llvm-svn: 31533
 2006-11-08 01:31:28 +00:00
Chris Lattner
f71921c79d optimize single MBB loops better. In particular, produce: 
LBB1_57:        #bb207.i
        movl 72(%esp), %ecx
        movb (%ecx,%eax), %cl
        movl 80(%esp), %edx
        movb %cl, 1(%edx,%eax)
        incl %eax
        cmpl $143, %eax
        jne LBB1_57     #bb207.i
        jmp LBB1_64     #cond_next255.i

intead of:

LBB1_57:        #bb207.i
        movl 72(%esp), %ecx
        movb (%ecx,%eax), %cl
        movl 80(%esp), %edx
        movb %cl, 1(%edx,%eax)
        incl %eax
        cmpl $143, %eax
        je LBB1_64      #cond_next255.i
        jmp LBB1_57     #bb207.i

This eliminates a branch per iteration of the loop.  This hurted PPC
particularly, because the extra branch meant another dispatch group for each
iteration of the loop.

llvm-svn: 31530
 2006-11-08 01:03:21 +00:00
Devang Patel
47de6ddc07 Update new pass managers to use PassManagerAnalysisHelper API. 
llvm-svn: 31526
 2006-11-07 22:56:50 +00:00
Chris Lattner
924b2b109f scalarrepl should not split the two elements of the vsiidx array: 
int func(vFloat v0, vFloat v1) {
        int ii;
        vSInt32 vsiidx[2];
        vsiidx[0] = _mm_cvttps_epi32(v0);
        vsiidx[1] = _mm_cvttps_epi32(v1);
        ii = ((int *) vsiidx)[4];
        return ii;
}

This fixes Transforms/ScalarRepl/2006-11-07-InvalidArrayPromote.ll

llvm-svn: 31524
 2006-11-07 22:42:47 +00:00
Devang Patel
fece2777c4 Introduce PassManagerAnalysisHelper. 
llvm-svn: 31522
 2006-11-07 22:35:17 +00:00
Devang Patel
6d4ef98c03 Add PassManager_New. 
llvm-svn: 31521
 2006-11-07 22:23:34 +00:00