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8977 Commits

Author SHA1 Message Date
Tanya Lattner a8b2929f45 Added tmp instructions to preserve ssa. 
llvm-svn: 19632
 2005-01-17 06:47:26 +00:00
Chris Lattner a56d29d517 Fix test/Regression/CodeGen/X86/2005-01-17-CycleInDAG.ll and 132.ijpeg. 
Do not fold a load into an operation if it will induce a cycle in the DAG.

Repeat after me: dAg.

llvm-svn: 19631
 2005-01-17 06:26:58 +00:00
Chris Lattner 715364364b Delete PHI nodes that are not dead but are locked in a cycle of single 
useness.

llvm-svn: 19629
 2005-01-17 05:10:15 +00:00
Chris Lattner 03f06f11aa Move code out of indentation one level to make it easier to read. 
Disable the xform for < > cases.  It turns out that the following is being
miscompiled:

bool %test(sbyte %S) {
        %T = cast sbyte %S to uint
        %V = setgt uint %T, 255
        ret bool %V
}

llvm-svn: 19628
 2005-01-17 03:20:02 +00:00
Chris Lattner 3be6cd57c9 Do not fold a load into a comparison that is used by more than one place. 
The comparison will probably be folded, so this is not ok to do.
This fixed 197.parser.

llvm-svn: 19624
 2005-01-17 01:34:14 +00:00
Chris Lattner 0cd6b9ae1e Do not codegen 'xor bool, true' as 'not reg'. not reg inverts the upper bits 
of the bytereg.  This fixes yacr2, 300.twolf and probably others.

llvm-svn: 19622
 2005-01-17 00:23:16 +00:00
Chris Lattner c1f386c7b8 Set up the shift and setcc types. 
If we emit a load because we followed a token chain to get to it, try to
fold it into its single user if possible.

llvm-svn: 19620
 2005-01-17 00:00:33 +00:00
Chris Lattner 5f180e4645 Shift and setcc types default to the pointer type. 
llvm-svn: 19619
 2005-01-16 23:59:48 +00:00
Chris Lattner 5c8a85e2d8 Implement legalize of call nodes. 
llvm-svn: 19617
 2005-01-16 19:46:48 +00:00
Tanya Lattner e4872342db Added paramters to a few functions in order to allow me to change the functions to preserve SSA 
llvm-svn: 19615
 2005-01-16 08:51:10 +00:00
Chris Lattner b14a63aa1c * Adjust to changes in TargetLowering interfaces. 
* Remove custom promotion for bool and byte select ops.  Legalize now
  promotes them for us.
* Allow folding ConstantPoolIndexes into EXTLOAD's, useful for float immediates.
* Declare which operations are not supported better.
* Add some hacky code for TRUNCSTORE to pretend that we have truncstore
  for i16 types.  This is useful for testing promotion code because I can
  just remove 16-bit registers all together and verify that programs work.

llvm-svn: 19614
 2005-01-16 07:34:08 +00:00
Chris Lattner 3c0dd46a3b Revamp supported ops. Instead of just being supported or not, we now keep 
track of how to deal with it, and provide the target with a hook that they
can use to legalize arbitrary operations in arbitrary ways.

Implement custom lowering for a couple of ops, implement promotion for select
operations (which x86 needs).

llvm-svn: 19613
 2005-01-16 07:29:19 +00:00
Chris Lattner 897cd7dc0a add method stub 
llvm-svn: 19612
 2005-01-16 07:28:41 +00:00
Chris Lattner 2c331fbc8f Don't mash stuff together. 
llvm-svn: 19611
 2005-01-16 07:28:31 +00:00
Chris Lattner 6f8097951c Use enums, move virtual dtor out of line. 
llvm-svn: 19610
 2005-01-16 07:28:11 +00:00
Chris Lattner 3ba56b3fe7 Implement some more missing promotions. 
llvm-svn: 19606
 2005-01-16 05:06:12 +00:00
Chris Lattner 8bdd0fc7aa Fix bugpoint 
llvm-svn: 19605
 2005-01-16 04:23:22 +00:00
Chris Lattner d0a65013ab cycles_t -> CycleCount_t 
llvm-svn: 19604
 2005-01-16 04:20:30 +00:00
Chris Lattner 73b6977700 Clarify assertion. 
llvm-svn: 19597
 2005-01-16 02:23:34 +00:00
Chris Lattner 4e550ebb38 Add assertions. 
llvm-svn: 19596
 2005-01-16 02:23:22 +00:00
Chris Lattner 209f585033 Add support for promoted registers being live across blocks. 
llvm-svn: 19595
 2005-01-16 02:23:07 +00:00
Reid Spencer 0e48bf8a19 Rename BUILD_* to PROJ_* 
llvm-svn: 19592
 2005-01-16 02:21:29 +00:00
Tanya Lattner 7462d192b8 Fixed a couple of instructions that broke SSA. 
llvm-svn: 19587
 2005-01-16 02:14:17 +00:00
Chris Lattner cebb964fef Improve compatiblity with HPUX on Itanium, patch by Duraid Madina 
llvm-svn: 19586
 2005-01-16 01:31:31 +00:00
Chris Lattner 8ec1dc5fc0 Set up identity transforms. 
llvm-svn: 19584
 2005-01-16 01:20:18 +00:00
Chris Lattner 87a769cbd4 Move some information into the TargetLowering object. 
llvm-svn: 19583
 2005-01-16 01:11:45 +00:00
Chris Lattner d58384fca6 Use the new TLI method to get this. 
llvm-svn: 19582
 2005-01-16 01:11:19 +00:00
Chris Lattner 1bc93bac69 Move some information out of LegalizeDAG into the generic Target interface. 
llvm-svn: 19581
 2005-01-16 01:10:58 +00:00
Chris Lattner 71d7f6e86f legalize a bunch of operations that I missed. 
llvm-svn: 19580
 2005-01-16 00:38:00 +00:00
Chris Lattner a8d34fb8c6 Add support for targets that require promotions. 
llvm-svn: 19579
 2005-01-16 00:37:38 +00:00
Chris Lattner 207a962c2c Fix some serious bugs in promotion. 
llvm-svn: 19578
 2005-01-16 00:17:42 +00:00
Chris Lattner 0fe7776da5 Eliminate unneeded extensions. 
llvm-svn: 19577
 2005-01-16 00:17:20 +00:00
Chris Lattner 4d97864e92 Implement promotion of a whole bunch more operators. I think that this is 
basically everything.

llvm-svn: 19576
 2005-01-15 22:16:26 +00:00
Chris Lattner 630d1937bf Print extra type for nodes with extra type info. 
llvm-svn: 19575
 2005-01-15 21:11:37 +00:00
Chris Lattner 99222f706c Add support for legalizing FP_ROUND_INREG, SIGN_EXTEND_INREG, and 
ZERO_EXTEND_INREG for targets that don't support them.

llvm-svn: 19573
 2005-01-15 07:15:18 +00:00
Chris Lattner 09d1b3d01d Common code factored out. 
llvm-svn: 19572
 2005-01-15 07:14:32 +00:00
Chris Lattner 5d24d61ae8 implement these methods. 
llvm-svn: 19571
 2005-01-15 06:52:40 +00:00
Chris Lattner c6c9a5b07d Add support for promoting ADD/MUL. 
Add support for new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators.
Realize that if we do any promotions, we need to iterate SelectionDAG
construction.

llvm-svn: 19569
 2005-01-15 06:18:18 +00:00
Chris Lattner 1001c6e2cd Add new SIGN_EXTEND_INREG, ZERO_EXTEND_INREG, and FP_ROUND_INREG operators. 
llvm-svn: 19568
 2005-01-15 06:17:04 +00:00
Chris Lattner 9de5890211 Add a new target-independent code generator flag. 
llvm-svn: 19567
 2005-01-15 06:00:32 +00:00
Chris Lattner e18a4c4c19 Add support for truncstore and *extload. 
llvm-svn: 19566
 2005-01-15 05:22:24 +00:00
Chris Lattner 1f2c9d82fa Add intitial support for promoting some operators. 
llvm-svn: 19565
 2005-01-15 05:21:40 +00:00
Reid Spencer 730e7cb048 We don't distribute the operating system specific directories any more. 
llvm-svn: 19563
 2005-01-14 22:43:01 +00:00
Chris Lattner 3b8e719d1d Adjust to CopyFromReg changes, implement deletion of truncating/extending 
stores/loads.

llvm-svn: 19562
 2005-01-14 22:38:01 +00:00
Chris Lattner 720a62e8c7 Adjust to CopyFromREg changes. 
llvm-svn: 19561
 2005-01-14 22:37:41 +00:00
Chris Lattner 39c6744c9f Start implementing truncating stores and extending loads. 
llvm-svn: 19559
 2005-01-14 22:08:15 +00:00
Chris Lattner d7bffad559 Fix Regression/CodeGen/PowerPC/2005-01-14-UndefLong.ll 
llvm-svn: 19557
 2005-01-14 20:22:02 +00:00
Chris Lattner c3ed31f837 Fix: Regression/CodeGen/PowerPC/2005-01-14-SetSelectCrash.ll 
llvm-svn: 19555
 2005-01-14 19:31:00 +00:00
Chris Lattner 51726c47fe Fix some bugs in an xform added yesterday. This fixes Prolangs-C/allroots. 
llvm-svn: 19553
 2005-01-14 17:35:12 +00:00
Chris Lattner 7aa41cfa88 Fix a compile crash on spiff 
llvm-svn: 19552
 2005-01-14 17:17:59 +00:00