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7920 Commits

Author SHA1 Message Date
Nate Begeman
a78c35a368 Skeleton of insert and extract matching, more to come 
llvm-svn: 46902
 2008-02-09 01:38:08 +00:00
Nate Begeman
336fba2146 Tablegen support for insert & extract element matching 
llvm-svn: 46901
 2008-02-09 01:37:05 +00:00
Evan Cheng
90f03a0b88 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
llvm-svn: 46893
 2008-02-08 21:20:40 +00:00
Dale Johannesen
9bbfeaea4d 64-bit (MMX) vectors do not need restrictive alignment. 
128-bit vectors need it only when SSE is on.

llvm-svn: 46890
 2008-02-08 19:48:20 +00:00
Dan Gohman
d1cc100aef Avoid needlessly casting away const qualifiers. 
llvm-svn: 46877
 2008-02-08 03:29:40 +00:00
Evan Cheng
b2bc19ee5b Added missing entries in X86 load / store folding tables. 
llvm-svn: 46866
 2008-02-08 00:12:56 +00:00
Dan Gohman
eb7c8e4f6b Follow Chris' suggestion; change the PseudoSourceValue accessors 
to return pointers instead of references, since this is always what
is needed.

llvm-svn: 46857
 2008-02-07 18:41:25 +00:00
Dan Gohman
3af6eba3dd Add SourceValue information for outgoing argument stores on x86. 
llvm-svn: 46854
 2008-02-07 16:28:05 +00:00
Evan Cheng
a377b2bbd1 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax

llvm-svn: 46850
 2008-02-07 08:53:49 +00:00
Evan Cheng
92635b3d94 In some cases, e.g. ADD32ri, no transformation is made. Guide against it. 
llvm-svn: 46849
 2008-02-07 08:29:53 +00:00
Dan Gohman
f00842e086 Re-apply the memory operand changes, with a fix for the static 
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827
 2008-02-06 22:27:42 +00:00
Evan Cheng
e509232483 Move to getCALLSEQ_END to ensure CALLSEQ_END node produces a flag. This is consistent with the definition in td file. 
llvm-svn: 46775
 2008-02-05 22:44:06 +00:00
Dale Johannesen
e8fa3130f8 Implement sseregparm. 
llvm-svn: 46764
 2008-02-05 20:46:33 +00:00
Nate Begeman
9f4245c16a Ident mnemonics appropriately 
llvm-svn: 46746
 2008-02-05 08:49:09 +00:00
Evan Cheng
1c67dcaae7 Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead. 
llvm-svn: 46724
 2008-02-04 23:06:48 +00:00
Nate Begeman
2b00217d58 This method should be virtual 
llvm-svn: 46723
 2008-02-04 23:04:24 +00:00
Nate Begeman
8285430ed7 Eliminate some redundant code. 
llvm-svn: 46720
 2008-02-04 21:44:06 +00:00
Nate Begeman
16830a34c4 The rest of the SSE4.1 intrinsic patterns that are obvious to me. Getting 
Evan's help with the rest.

llvm-svn: 46697
 2008-02-04 06:00:24 +00:00
Nate Begeman
ee7503810f Some more SSE 4.1 intrinsic patterns. 
llvm-svn: 46696
 2008-02-04 05:34:34 +00:00
Nate Begeman
ead8dfeef2 SSE 4.1 Intrinsics and detection 
llvm-svn: 46681
 2008-02-03 07:18:54 +00:00
Chris Lattner
e926ece00b explicitly include Compiler.h instead of getting it from tblgen in the middle of a class. 
llvm-svn: 46676
 2008-02-03 05:43:57 +00:00
Chris Lattner
df36b95e00 don't do ReplaceUses on a result that doesn't exist. 
llvm-svn: 46673
 2008-02-03 03:20:59 +00:00
Evan Cheng
f61d1115af Get rid of the annoying blank lines before labels. 
llvm-svn: 46667
 2008-02-02 08:39:46 +00:00
Nick Lewycky
78e2e2cd07 Don't use uninitialized values. Fixes vec_align.ll on X86 Linux. 
llvm-svn: 46666
 2008-02-02 08:29:58 +00:00
Evan Cheng
dd8d07749a Unbreak ppc debug support. 
llvm-svn: 46665
 2008-02-02 05:06:29 +00:00
Evan Cheng
c57ec111f2 SDIsel processes llvm.dbg.declare by recording the variable debug information descriptor and its corresponding stack frame index in MachineModuleInfo. This only works if the local variable is "homed" in the stack frame. It does not work for byval parameter, etc. 
Added ISD::DECLARE node type to represent llvm.dbg.declare intrinsic. Now the intrinsic calls are lowered into a SDNode and lives on through out the codegen passes.
For now, since all the debugging information recording is done at isel time, when a ISD::DECLARE node is selected, it has the side effect of also recording the variable. This is a short term solution that should be fixed in time.

llvm-svn: 46659
 2008-02-02 04:07:54 +00:00
Evan Cheng
9ff6b89bd9 Frame index can be negative. 
llvm-svn: 46655
 2008-02-02 00:17:00 +00:00
Lauro Ramos Venancio
563e0a3ea3 CBackend: Implement unaligned load/store. 
llvm-svn: 46646
 2008-02-01 21:25:59 +00:00
Evan Cheng
d6222fc11d Remove the nasty LABEL hack with a much less evil one. Now llvm.dbg.func.start implies a stoppoint is set. SelectionDAGISel records a new source line but does not create a ISD::LABEL node for this special stoppoint. Asm printer will magically print this label. This ensures nothing is emitted before. 
llvm-svn: 46635
 2008-02-01 09:10:45 +00:00
Evan Cheng
2a533e6894 Revert 46556 and 46585. Dan please fix the PseudoSourceValue problem and re-commit. 
llvm-svn: 46623
 2008-01-31 21:00:00 +00:00
Evan Cheng
705212577d Add an extra operand to LABEL nodes which distinguishes between debug, EH, or misc labels. This fixes the EH breakage. However I am not convinced this is *the* solution. 
llvm-svn: 46609
 2008-01-31 09:59:15 +00:00
Christopher Lamb
1a102eecb0 Allow ComplexExpressions in InstrInfo.td files to be slightly more... complex! ComplexExpressions can now have attributes which affect how TableGen interprets 
the pattern when generating matchin code. 

The first (and currently, only) attribute causes the immediate parent node of the ComplexPattern operand to be passed into the matching code rather than the node at the root of the entire DAG containing the pattern.

llvm-svn: 46606
 2008-01-31 07:27:46 +00:00
Evan Cheng
d1bed85965 Add x86 specific getFrameIndexOffset(). This fixes local variable debugging info. 
llvm-svn: 46598
 2008-01-31 04:06:00 +00:00
Evan Cheng
a63f6736f3 MRegisterInfo::getLocation() is a really bad idea. Its function is to calculate the offset from frame pointer to a stack slot and then storing the delta in a MachineLocation object. The name is bad (it implies a getter), and MRegisterInfo doesn't need to know about MachineLocation. 
Replace getLocation() with getFrameIndexOffset() which returns the delta from frame pointer to stack slot. Dwarf writer can then use the information for whatever it wants.

llvm-svn: 46597
 2008-01-31 03:37:28 +00:00
Evan Cheng
f9d2cf4cae Makes the same change in ppc backend: avoid inserting prologue before debug labels. 
llvm-svn: 46596
 2008-01-31 03:33:38 +00:00
Dan Gohman
018ea14d87 Avoid unnecessarily casting away const. 
llvm-svn: 46590
 2008-01-31 01:01:48 +00:00
Dan Gohman
3993809a0c Rename ISD::FLT_ROUNDS to ISD::FLT_ROUNDS_ to avoid conflicting 
with the real FLT_ROUNDS (defined in <float.h>).

llvm-svn: 46587
 2008-01-31 00:41:03 +00:00
Dan Gohman
4326d513ab Create a new class, MemOperand, for describing memory references 
in the backend. Introduce a new SDNode type, MemOperandSDNode, for
holding a MemOperand in the SelectionDAG IR, and add a MemOperand
list to MachineInstr, and code to manage them. Remove the offset
field from SrcValueSDNode; uses of SrcValueSDNode that were using
it are all all using MemOperandSDNode now.

Also, begin updating some getLoad and getStore calls to use the
PseudoSourceValue objects.

Most of this was written by Florian Brander, some
reorganization and updating to TOT by me.

llvm-svn: 46585
 2008-01-31 00:25:39 +00:00
Evan Cheng
b2b94f7a81 Treat the label for the first @llvm.dbg.stoppoint the same way as the dbg_func_start label. Make sure nothing else is inserted before them. 
Note this solution might be somewhat fragile since ISD::LABEL may be used for other
purposes. If that ends up to be an issue, we may need to introduce a different node
for debug labels.

llvm-svn: 46571
 2008-01-30 20:08:35 +00:00
Evan Cheng
918b9c9335 Even though InsertAtEndOfBasicBlock is an ugly hack it still deserves a proper name. Rename it to EmitInstrWithCustomInserter since it does not necessarily insert 
instruction at the end.

llvm-svn: 46562
 2008-01-30 18:18:23 +00:00
Evan Cheng
84adda6b67 Skip over the label which marks the beginning of the function before inserting prologue code. 
llvm-svn: 46546
 2008-01-30 03:57:33 +00:00
Scott Michel
ab3702fba9 More cleanups for CellSPU: 
- Expand tabs... (poss 80-col violations, will get them later...)
- Consolidate logic for SelectDFormAddr and SelectDForm2Addr into a single
  function, simplifying maintenance. Also reduced custom instruction
  generation for SPUvecinsert/INSERT_MASK.

llvm-svn: 46544
 2008-01-30 02:55:46 +00:00
Dan Gohman
13d1327796 Factor the addressing mode and the load/store VT out of LoadSDNode 
and StoreSDNode into their common base class LSBaseSDNode. Member
functions getLoadedVT and getStoredVT are replaced with the common
getMemoryVT to simplify code that will handle both loads and stores.

llvm-svn: 46538
 2008-01-30 00:15:11 +00:00
Evan Cheng
618761903d Work in progress. This patch *fixes* x86-64 calls which are modelled as StructRet but really should be return in registers, e.g. _Complex long double, some 128-bit aggregates. This is a short term solution that is necessary only because llvm, for now, cannot model i128 nor call's with multiple results. 
Status: This only works for direct calls, and only the caller side is done. Disabled for now.

llvm-svn: 46527
 2008-01-29 19:34:22 +00:00
Duncan Sands
390baa691d Use getPreferredAlignmentLog or getPreferredAlignment 
to get the alignment of global variables, rather than
using hand-made versions.

llvm-svn: 46495
 2008-01-29 06:23:44 +00:00
Dale Johannesen
f12104ce4b Handle 'X' constraint in asm's better. 
llvm-svn: 46485
 2008-01-29 02:21:21 +00:00
Scott Michel
dc780aeb57 Overhaul Cell SPU's addressing mode internals so that there are now 
only two addressing mode nodes, SPUaform and SPUindirect (vice the
three previous ones, SPUaform, SPUdform and SPUxform). This improves
code somewhat because we now avoid using reg+reg addressing when
it can be avoided. It also simplifies the address selection logic,
which was the main point for doing this.

Also, for various global variables that would be loaded using SPU's
A-form addressing, prefer D-form offs[reg] addressing, keeping the
base in a register if the variable is used more than once.

llvm-svn: 46483
 2008-01-29 02:16:57 +00:00
Bill Wendling
5b6f587a80 If the function has no machine instructions, then emit a "nop" so that 
the function label isn't associated with something it shouldn't be.

llvm-svn: 46449
 2008-01-28 09:15:03 +00:00
Chris Lattner
39c52e030b add a note 
llvm-svn: 46413
 2008-01-27 07:31:41 +00:00
Chris Lattner
f4bc2c5718 Use fldz and fld1 for long double constants instead of a constant pool load. 
llvm-svn: 46411
 2008-01-27 06:19:31 +00:00