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2182 Commits

Author SHA1 Message Date
Chris Lattner adcaf294d7 Move the Imp tblgen class from the X86 backend to common code. 
llvm-svn: 30907
 2006-10-12 17:49:27 +00:00
Chris Lattner b5cda3daa9 Mark ADJCALLSTACKUP/DOWN as clobbering ESP so that virtregmap will notice 
that it can't assume ESP is unmodified across the instrs.

llvm-svn: 30905
 2006-10-12 17:42:56 +00:00
Chris Lattner 40ec2bebf9 fix compilation failure of smg2000 
llvm-svn: 30900
 2006-10-12 03:55:48 +00:00
Chris Lattner d5fcfaa6da Fold "zero extending vector loads" now that evan added the chain manip stuff. 
This compiles both tests in X86/vec_ss_load_fold.ll into:

_test1:
        movss 4(%esp), %xmm0
        subss LCPI1_0, %xmm0
        mulss LCPI1_1, %xmm0
        minss LCPI1_2, %xmm0
        xorps %xmm1, %xmm1
        maxss %xmm1, %xmm0
        cvttss2si %xmm0, %eax
        andl $65535, %eax
        ret

instead of:

_test1:
        movss LCPI1_0, %xmm0
        movss 4(%esp), %xmm1
        subss %xmm0, %xmm1
        movss LCPI1_1, %xmm0
        mulss %xmm0, %xmm1
        movss LCPI1_2, %xmm0
        minss %xmm0, %xmm1
        xorps %xmm0, %xmm0
        maxss %xmm0, %xmm1
        cvttss2si %xmm1, %eax
        andl $65535, %eax
        ret

llvm-svn: 30894
 2006-10-11 22:09:58 +00:00
Evan Cheng 4090dc4703 ComplexPatterns sse_load_f32 and sse_load_f64 returns in / out chain operands. 
llvm-svn: 30892
 2006-10-11 21:06:01 +00:00
Evan Cheng 577ef7694e Add properties to ComplexPattern. 
llvm-svn: 30891
 2006-10-11 21:03:53 +00:00
Evan Cheng 61b8b43bbe More isel time load folding checking for nodes that produce flag values. 
See comment in CanBeFoldedBy() for detailed explanation.

llvm-svn: 30851
 2006-10-10 01:46:56 +00:00
Evan Cheng 57ccb6d372 Don't go too crazy with these AddComplexity. Try matching shufps with load 
folding first.

llvm-svn: 30848
 2006-10-09 21:42:15 +00:00
Evan Cheng e646abb7b6 Don't convert to MOVLP if using shufps etc. may allow load folding. 
llvm-svn: 30847
 2006-10-09 21:39:25 +00:00
Evan Cheng e71fe34d75 Reflects ISD::LOAD / ISD::LOADX / LoadSDNode changes. 
llvm-svn: 30844
 2006-10-09 20:57:25 +00:00
Chris Lattner 398195ebbe completely disable folding of loads into scalar sse instructions and provide 
a framework for doing it right.  This fixes
CodeGen/X86/2006-10-07-ScalarSSEMiscompile.ll.

Once X86DAGToDAGISel::SelectScalarSSELoad is implemented right, this task
will be done.

llvm-svn: 30817
 2006-10-07 21:55:32 +00:00
Chris Lattner 942009fee5 convert packed FP add/sub/mul/div to use a multiclass. 
llvm-svn: 30815
 2006-10-07 21:17:13 +00:00
Chris Lattner 4005f4e49c one multiclass now defines all 8 variants of binary-scalar-sse-fp operations. 
llvm-svn: 30814
 2006-10-07 20:55:57 +00:00
Chris Lattner 6eaee2c8e3 Switch ADD/MUL/DIV/SUB scalarsse fp ops to a multiclass 
llvm-svn: 30813
 2006-10-07 20:35:44 +00:00
Chris Lattner c8c6441821 Random acts of shrinkage 
llvm-svn: 30812
 2006-10-07 19:49:05 +00:00
Chris Lattner b5df7e554d Convert pand/por/pxor to use multiclass 
llvm-svn: 30811
 2006-10-07 19:37:30 +00:00
Chris Lattner 6138cba5f1 Convert some more instructions over to use a new multiclass. 
Fix a bug where the asmstring for PSUBQrm was wrong.

llvm-svn: 30810
 2006-10-07 19:34:33 +00:00
Chris Lattner 662ba43f08 Fix a bug where PADDQrm printed paddd instead of paddq. 
llvm-svn: 30809
 2006-10-07 19:15:46 +00:00
Chris Lattner 29c62a3c88 Add multiclass for SSE2 instructions that correspond to simple binops. 
llvm-svn: 30808
 2006-10-07 19:14:49 +00:00
Chris Lattner e0928d9d7b rename: 
PDI_binop_rm -> PDI_binop_rm_int
  PDI_binop_rmi -> PDI_binop_rmi_int

to make it clear that these are for use with intrinsics.

llvm-svn: 30807
 2006-10-07 19:02:31 +00:00
Chris Lattner 489b63089d Convert saturating PADD/PSUB's to use a multiclass 
llvm-svn: 30806
 2006-10-07 18:48:46 +00:00
Chris Lattner fa2ce8824d Convert PAVG*, PMADDWD, and PMUL* to use multiclasses. 
llvm-svn: 30805
 2006-10-07 18:39:00 +00:00
Chris Lattner cab92e4c0c Fix typo in packsswb instr definition, where the load had the wrong type. 
This allows us to use the multiclass for other packs.

llvm-svn: 30804
 2006-10-07 18:23:58 +00:00
Chris Lattner e746a9cd6a handle pmin/pmax with multiclasses 
llvm-svn: 30800
 2006-10-07 07:49:33 +00:00
Chris Lattner b14e6a0f8c simplify pack and shift intrinsics with multiclasses 
llvm-svn: 30797
 2006-10-07 07:06:17 +00:00
Chris Lattner 521fc4e33f Use a multiclass to simplify 'SSE2 Integer comparison' 
llvm-svn: 30796
 2006-10-07 06:47:08 +00:00
Chris Lattner c6138cec61 move class defns close to uses to make it easier to read 
llvm-svn: 30795
 2006-10-07 06:33:36 +00:00
Chris Lattner 87e692323c simplify horizontal op definitions 
llvm-svn: 30794
 2006-10-07 06:31:41 +00:00
Chris Lattner 3e9fc37458 remove more unneeded type info 
llvm-svn: 30793
 2006-10-07 06:27:03 +00:00
Chris Lattner 807be0a715 remove unneeded definitions and type info 
llvm-svn: 30792
 2006-10-07 06:19:41 +00:00
Chris Lattner 5b1358a8eb remove some unneeded type info 
llvm-svn: 30791
 2006-10-07 06:17:43 +00:00
Chris Lattner 3414c022af simplify patterns by merging in operand info 
llvm-svn: 30790
 2006-10-07 05:50:25 +00:00
Chris Lattner ca21ce5f08 Factor operands into packed unary classes 
llvm-svn: 30789
 2006-10-07 05:47:20 +00:00
Chris Lattner 0052c3ff5b remove dead/duplicate instructions 
llvm-svn: 30788
 2006-10-07 05:41:52 +00:00
Chris Lattner 904c6e9c92 Pull operand info up into parent class for scalar sse intrinsics. 
llvm-svn: 30787
 2006-10-07 05:26:13 +00:00
Chris Lattner e698c90ee9 convert the sole sd unary intrinsic to a multiclass for consistency 
llvm-svn: 30786
 2006-10-07 05:19:31 +00:00
Chris Lattner 2bb2f050f5 pull operand string into the multiclass 
llvm-svn: 30785
 2006-10-07 05:13:26 +00:00
Chris Lattner 069679c7b6 Remove RSQRTSS[rm] RCPSS[rm], which are dead. 
Introduce SS_IntUnary, a multiclass to replace SS_Int[rm].

llvm-svn: 30784
 2006-10-07 05:09:48 +00:00
Chris Lattner f13a7b376c eliminate redundancy 
llvm-svn: 30783
 2006-10-07 04:52:09 +00:00
Evan Cheng 5fe9680253 80 col violation. 
llvm-svn: 30770
 2006-10-06 18:57:51 +00:00
Chris Lattner 2421a179e4 ugly codegen 
llvm-svn: 30769
 2006-10-06 17:39:34 +00:00
Evan Cheng ff1beda569 Still need to support -mcpu=<> or cross compilation will fail. Doh. 
llvm-svn: 30764
 2006-10-06 09:17:41 +00:00
Evan Cheng 9274f72e58 Do away with CPU feature list. Just use CPUID to detect MMX, SSE, SSE2, SSE3, and 64-bit support. 
llvm-svn: 30763
 2006-10-06 08:21:07 +00:00
Evan Cheng 4c1a804a5b It appears the inline asm in GetCpuIDAndInfo() may clobbers some registers if it isn't inlined (at < -O3). Force it to be inlined. 
llvm-svn: 30762
 2006-10-06 07:50:56 +00:00
Evan Cheng df9ac47e5e Make use of getStore(). 
llvm-svn: 30759
 2006-10-05 23:01:46 +00:00
Chris Lattner f2ef243580 Lower some min/max idioms to minss/maxss when unsafe fp math is enabled. 
llvm-svn: 30748
 2006-10-05 04:11:26 +00:00
Chris Lattner a6a570e02f Pass the MachineFunction into EmitJumpTableInfo. 
llvm-svn: 30742
 2006-10-05 03:01:21 +00:00
Chris Lattner b82247b168 Implement getSectionForFunction, use it when printing function body. 
llvm-svn: 30737
 2006-10-05 02:43:52 +00:00
Evan Cheng 8c5766ef3f Added option -disable-x86-shuffle-opti to disable X86 specific vector shuffle optimizations. 
llvm-svn: 30723
 2006-10-04 18:33:38 +00:00
Evan Cheng 412aaabcbe Formating. 
llvm-svn: 30722
 2006-10-04 18:33:00 +00:00
Chris Lattner 9259b1efb6 Pattern match min/max nodes when we have sse. This implements 
CodeGen/X86/scalar_sse_minmax.ll

llvm-svn: 30719
 2006-10-04 06:57:07 +00:00
Chris Lattner 3e11d99a0a add a note :( 
llvm-svn: 30717
 2006-10-04 05:52:13 +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 f598d73142 Fix PR933 and CodeGen/X86/2006-10-02-BoolRetCrash.ll 
llvm-svn: 30703
 2006-10-03 17:18:42 +00:00
Evan Cheng a36e6cf44f These don't have immediate operands. 
llvm-svn: 30694
 2006-10-03 06:55:11 +00:00
Evan Cheng 1212b4d249 Not needed. 
llvm-svn: 30674
 2006-09-29 22:05:10 +00:00
Chris Lattner d9e4bf5285 update comments 
llvm-svn: 30663
 2006-09-28 23:33:12 +00:00
Chris Lattner fc36039f86 silence warnings in release build 
llvm-svn: 30631
 2006-09-27 18:29:38 +00:00
Chris Lattner 104aa5dbc1 Various random and minor code cleanups. 
llvm-svn: 30608
 2006-09-26 03:57:53 +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
Evan Cheng 1da0ab2f58 Delete dead code; fix 80 col violations. 
llvm-svn: 30583
 2006-09-22 21:43:59 +00:00
Chris Lattner 08a8ccaaf1 implemented 
llvm-svn: 30559
 2006-09-21 06:14:54 +00:00
Chris Lattner 1c18c0db79 Fit in 80-cols 
llvm-svn: 30556
 2006-09-21 05:46:00 +00:00
Nick Lewycky c68bbef874 Fix compile error. 
llvm-svn: 30553
 2006-09-21 02:08:31 +00:00
Anton Korobeynikov 3c5b3df6a0 Adding codegeneration for StdCall & FastCall calling conventions 
llvm-svn: 30549
 2006-09-20 22:03:51 +00:00
Chris Lattner 27d8985a71 add a note 
llvm-svn: 30515
 2006-09-20 06:32:10 +00:00
Chris Lattner 523dbc5c19 add a note. Our 64-bit shifts are ~30% slower than gcc's 
llvm-svn: 30457
 2006-09-18 05:36:54 +00:00
Anton Korobeynikov 6f7072c66a Added some eye-candy for Subtarget type checking 
Added X86 StdCall & FastCall calling conventions. Codegen will follow.

llvm-svn: 30446
 2006-09-17 20:25:45 +00:00
Anton Korobeynikov 0ab01ff6e2 Small fixes for supporting dll* linkage types 
llvm-svn: 30441
 2006-09-17 13:06:18 +00:00
Chris Lattner 63b113f68c add a note 
llvm-svn: 30406
 2006-09-16 03:30:19 +00:00
Evan Cheng f8464da015 Remove a unnecessary check. 
llvm-svn: 30382
 2006-09-14 23:55:02 +00:00
Anton Korobeynikov d61d39ec53 Adding dllimport, dllexport and external weak linkage types. 
DLL* linkages got full (I hope) codegeneration support in C & both x86
assembler backends.
External weak linkage added for future use, we don't provide any
codegeneration, etc. support for it.

llvm-svn: 30374
 2006-09-14 18:23:27 +00:00
Chris Lattner 1463377ddb add note about switch lowering 
llvm-svn: 30308
 2006-09-13 23:37:16 +00:00
Evan Cheng 92e5113d48 Skip over first operand when determining REX prefix for two-address code. 
llvm-svn: 30300
 2006-09-13 19:07:28 +00:00
Chris Lattner 971e33930d Turn X < 0 -> TEST X,X js 
llvm-svn: 30294
 2006-09-13 17:04:54 +00:00
Chris Lattner 0c9ae46c5f The sense of this branch was inverted :( 
llvm-svn: 30293
 2006-09-13 16:56:12 +00:00
Chris Lattner 706dd3e0d4 Fix a regression in the 32-bit port from the 64-bit port landing. 
We now compile CodeGen/X86/lea-2.ll into:

_test:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        leal -5(%ecx,%eax,4), %eax
        ret

instead of:

_test:
        movl 4(%esp), %eax
        leal (,%eax,4), %eax
        addl 8(%esp), %eax
        addl $4294967291, %eax
        ret

llvm-svn: 30288
 2006-09-13 04:45:25 +00:00
Chris Lattner e413fea6ac new note 
llvm-svn: 30286
 2006-09-13 04:19:50 +00:00
Chris Lattner 3496710f25 new note 
llvm-svn: 30285
 2006-09-13 03:54:54 +00:00
Chris Lattner 7a627676be Compile X > -1 -> text X,X; js dest 
This implements CodeGen/X86/jump_sign.ll.

llvm-svn: 30283
 2006-09-13 03:22:10 +00:00
Evan Cheng 9a083a4121 Reflects MachineConstantPoolEntry changes. 
llvm-svn: 30279
 2006-09-12 21:04:05 +00:00
Chris Lattner cfb2c32724 add a note 
llvm-svn: 30271
 2006-09-12 06:36:01 +00:00
Chris Lattner 8b4de218d9 Testcase noticed from PR906 
llvm-svn: 30269
 2006-09-11 23:00:56 +00:00
Chris Lattner 6e7286f72a add compilable testcase 
llvm-svn: 30268
 2006-09-11 22:57:51 +00:00
Evan Cheng 21a75acc3e Updates. 
llvm-svn: 30245
 2006-09-11 05:35:17 +00:00
Evan Cheng 9e77d9a96b Update README file. 
llvm-svn: 30244
 2006-09-11 05:25:15 +00:00
Evan Cheng 4259a0f654 X86ISD::CMP now produces a chain as well as a flag. Make that the chain 
operand of a conditional branch to allow load folding into CMP / TEST
instructions.

llvm-svn: 30241
 2006-09-11 02:19:56 +00:00
Evan Cheng de33f66286 Fixed a FuseTwoAddrInst() bug: consider GlobalAddress and JumpTableIndex 
in addition to immediate operands.

llvm-svn: 30205
 2006-09-08 21:08:13 +00:00
Chris Lattner 6c003a7c2d Use __USER_LABEL_PREFIX__ to get the prefix added by the current host. 
llvm-svn: 30190
 2006-09-08 17:03:56 +00:00
Evan Cheng 7348403d42 Remove TEST64mr. It's same as TEST64rm since and is commutative. 
llvm-svn: 30178
 2006-09-08 06:56:55 +00:00
Evan Cheng 11b0a5dbd4 Committing X86-64 support. 
llvm-svn: 30177
 2006-09-08 06:48:29 +00:00
Evan Cheng 89c5d04b9b - Identify a vector_shuffle that can be turned into an undef, e.g. 
shuffle V1, <undef>, <undef, undef, 4, 5>
- Fix some suspicious logic into LowerVectorShuffle that cause less than
  optimal code by failing to identify MOVL (move to lowest element of a
  vector).

llvm-svn: 30171
 2006-09-08 01:50:06 +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
Chris Lattner 2785d55446 add a new value for the command line optn 
llvm-svn: 30165
 2006-09-07 22:32:28 +00:00
Chris Lattner b9e0a9e82f Fix a cross-build issue. The asmsyntax shouldn't be affected by the build 
host, it should be affected by the target.  Allow the command line option to
override in either case.

llvm-svn: 30164
 2006-09-07 22:29:41 +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
Chris Lattner dc4ff5311f Eliminate X86ISD::TEST, using X86ISD::CMP instead. Match X86ISD::CMP patterns 
using test, which provides nice simplifications like:

-       movl %edi, %ecx
-       andl $2, %ecx
-       cmpl $0, %ecx
+       testl $2, %edi
        je LBB1_11      #cond_next90

There are a couple of dagiselemitter deficiencies that this exposes, they will
be handled later.

llvm-svn: 30156
 2006-09-07 20:33:45 +00:00
Chris Lattner 1b7f09cdf7 Some notes on better load folding we could do 
llvm-svn: 30155
 2006-09-07 20:32:01 +00:00
Evan Cheng a9411c0977 Consistency. 
llvm-svn: 30152
 2006-09-07 19:03:48 +00:00
Jim Laskey c7abe471fe Make the x86 asm flavor part of the subtarget info. 
llvm-svn: 30146
 2006-09-07 12:23:47 +00:00
Evan Cheng 7f3f0973e6 Clean up. 
llvm-svn: 30140
 2006-09-07 01:17:57 +00:00
Evan Cheng 4c7a3fbdea Watch out for variable_ops instructions. 
llvm-svn: 30135
 2006-09-06 20:32:45 +00:00
Evan Cheng ac22e54131 Variable ops instructions may ignore the last few operands for code emission. 
llvm-svn: 30134
 2006-09-06 20:24:14 +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 2656932979 Bugfix to work with the two-addr changes that have been made in the tree recently 
llvm-svn: 30121
 2006-09-05 20:27:32 +00:00
Evan Cheng 7a150d3113 Fix a few dejagnu failures. e.g. fast-cc-merge-stack-adj.ll 
llvm-svn: 30113
 2006-09-05 08:32:49 +00:00
Evan Cheng 17c28b2e0e JIT encoding bug. 
llvm-svn: 30112
 2006-09-05 05:59:25 +00:00
Chris Lattner e3d2e1e41e Update the X86 JIT to make it work with the new two-addr changes. This also 
adds assertions that check to make sure every operand gets emitted.

llvm-svn: 30110
 2006-09-05 02:52:35 +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 13a5dcddce Fix a long-standing wart in the code generator: two-address instruction lowering 
actually *removes* one of the operands, instead of just assigning both operands
the same register.  This make reasoning about instructions unnecessarily complex,
because you need to know if you are before or after register allocation to match
up operand #'s with the target description file.

Changing this also gets rid of a bunch of hacky code in various places.

This patch also includes changes to fold loads into cmp/test instructions in
the X86 backend, along with a significant simplification to the X86 spill
folding code.

llvm-svn: 30108
 2006-09-05 02:12:02 +00:00
Chris Lattner 49c45d3a13 Fix some X86 JIT failures. This should really come from TargetJITInfo. 
llvm-svn: 30102
 2006-09-04 18:48:41 +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 e8ce162969 Add accessor 
llvm-svn: 30080
 2006-09-04 04:08:58 +00:00
Chris Lattner 0fc4541c67 Simplify target construction. 
llvm-svn: 30070
 2006-09-03 18:44:02 +00:00
Evan Cheng 2c4e0f120f Oops. Bad typo. Without the check of N1.hasOneUse() bad things can happen. 
Suppose the TokenFactor can reach the Op:

       [Load chain]
           ^
           |
         [Load]
         ^    ^
         |    |
        /      \-
       /         |
      /          [Op]
     /          ^ ^
     |        ..  |
     |       /    |
   [TokenFactor]  |
       ^          |
       |          |
        \        /
         \      /
         [Store]

If we move the Load below the TokenFactor, we would have created a cycle in
the DAG.

llvm-svn: 30040
 2006-09-01 22:52:28 +00:00
Evan Cheng 6d464146d0 Minor asm fix. 
llvm-svn: 29965
 2006-08-29 22:14:48 +00:00
Evan Cheng b28800f4d5 Remove dead code. 
llvm-svn: 29962
 2006-08-29 21:42:58 +00:00
Evan Cheng dfb85155dc Don't performance load/op/store transformation if op produces a floating point 
or vector result. X86 does not have load/mod/store variants of those
instructions.

llvm-svn: 29957
 2006-08-29 18:37:37 +00:00
Evan Cheng 358b9ed98a - Enable x86 isel preprocessing by default unless -fast is specified. 
- Also disable isel load folding if -fast.

llvm-svn: 29956
 2006-08-29 18:28:33 +00:00
Evan Cheng c07feb14b0 Avoid making unneeded load/mod/store transformation which can hurt performance. 
llvm-svn: 29952
 2006-08-29 06:44:17 +00:00
Evan Cheng 00884b51c5 On Mac, print jump table entries after the function to work around a linker issue. 
llvm-svn: 29946
 2006-08-28 22:14:16 +00:00
Evan Cheng 64a9e28846 Add an optional pass to preprocess the DAG before x86 isel to allow selecting more load/mod/store instructions. 
llvm-svn: 29943
 2006-08-28 20:10:17 +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 2d48722e92 Match tblgen changes; clean up. 
llvm-svn: 29894
 2006-08-26 01:05:16 +00:00
Chris Lattner c664efe223 Give a good error message when we try to jit inline asm. 
llvm-svn: 29891
 2006-08-26 00:47:03 +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 162f2d5d4c Revert this patch, the front-end has been fixed to make it unneccesary. 
llvm-svn: 29752
 2006-08-17 18:43:24 +00:00
Chris Lattner dfb3f0591d 'g' is handled by the front-end. 
llvm-svn: 29751
 2006-08-17 18:12:28 +00:00
Andrew Lenharth 4a063c5ffb Fix handling of 'g'. Closes 883 
llvm-svn: 29750
 2006-08-17 17:50:12 +00:00
Andrew Lenharth 1c3210d08d Add the 'c' constraint as needed by the linux kernel 
llvm-svn: 29747
 2006-08-17 16:07:50 +00:00
Andrew Lenharth fc60fb974c Add support for S and D constraints, as needed to compile the linux kernel. 
llvm-svn: 29746
 2006-08-17 15:35:43 +00:00
Evan Cheng 29ab7c42a8 Doh. Incorrectly inverted condition. Also add a isOnlyUse check to match tablegen. 
llvm-svn: 29741
 2006-08-16 23:59:00 +00:00
Evan Cheng 63d178f473 SelectNodeTo() may return a SDOperand that is different from the input. 
llvm-svn: 29726
 2006-08-16 07:30:09 +00:00
Chris Lattner 08a5f38c5c add a note 
llvm-svn: 29722
 2006-08-16 02:47:44 +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 20b461a97f eliminate extraneous blank line 
llvm-svn: 29627
 2006-08-11 21:08:16 +00:00
Chris Lattner ed728e8dc9 Eliminate use of getNode that takes a vector. 
llvm-svn: 29614
 2006-08-11 17:38:39 +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
Evan Cheng 5c68bba085 Convert more calls of getNode() that takes a vector to pass in the start of an array. 
llvm-svn: 29601
 2006-08-11 07:35:45 +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 72bb66a4b8 Eliminate reachability matrix. It has to be calculated before any instruction 
selection is done. That's rather expensive especially in situations where it
isn't really needed.
Move back to a searching the predecessors, but make use of topological order
to trim the search space.

llvm-svn: 29559
 2006-08-08 00:31:00 +00:00
Evan Cheng b9d34bd098 Match tablegen isel changes. 
llvm-svn: 29549
 2006-08-07 22:28:20 +00:00
Evan Cheng d5e38e017c Make XMM, FP register dwarf register numbers consistent with gcc. 
llvm-svn: 29543
 2006-08-07 21:02:39 +00:00
Jim Laskey f2c14591e6 Get darwin intel debugging up and running. 
llvm-svn: 29504
 2006-08-03 17:27:09 +00:00