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Author SHA1 Message Date
Chris Lattner
c27bba037b Fold (A^B) == A -> B == 0 
and  (A-B) == A  ->  B == 0

llvm-svn: 26394
 2006-02-27 01:44:11 +00:00
Chris Lattner
cbfdf37986 New testcases 
llvm-svn: 26393
 2006-02-27 01:43:02 +00:00
Chris Lattner
799e9e2e64 Implement bit propagation through sub nodes, this (re)implements 
PowerPC/div-2.ll

llvm-svn: 26392
 2006-02-27 01:00:42 +00:00
Chris Lattner
3d5e90af95 Reenable this 
llvm-svn: 26391
 2006-02-27 01:00:12 +00:00
Chris Lattner
baea29f33d remove some completed notes 
llvm-svn: 26390
 2006-02-27 00:39:31 +00:00
Chris Lattner
4a7d24d210 Check RHS simplification before LHS simplification to avoid infinitely looping 
on PowerPC/small-arguments.ll

llvm-svn: 26389
 2006-02-27 00:36:27 +00:00
Chris Lattner
265c99ec1c Just like we use the RHS of an AND to simplify the LHS, use the LHS to 
simplify the RHS.  This allows for the elimination of many thousands of
ands from multisource, and compiles CodeGen/PowerPC/and-elim.ll:test2
into this:

_test2:
        srwi r2, r3, 1
        xori r3, r2, 40961
        blr

instead of this:

_test2:
        rlwinm r2, r3, 31, 17, 31
        xori r2, r2, 40961
        rlwinm r3, r2, 0, 16, 31
        blr

llvm-svn: 26388
 2006-02-27 00:22:28 +00:00
Chris Lattner
151324f158 new testcase 
llvm-svn: 26387
 2006-02-27 00:20:23 +00:00
Chris Lattner
8f6651a056 Add a bunch of missed cases. Perhaps the most significant of which is that 
assertzext produces zero bits.

llvm-svn: 26386
 2006-02-26 23:36:02 +00:00
Chris Lattner
80e2fa8a9d Fold (X|C1)^C2 -> X^(C1|C2) when possible. This implements 
InstCombine/or.ll:test23.

llvm-svn: 26385
 2006-02-26 19:57:54 +00:00
Chris Lattner
3ceedb4228 new testcase 
llvm-svn: 26384
 2006-02-26 19:55:30 +00:00
Jim Laskey
0ba89a0a4c Reverting. Didn't realize some developers were embedding constants in their 
target assembler code gen.

llvm-svn: 26383
 2006-02-26 10:16:05 +00:00
Evan Cheng
40a98fd65d ConstantPoolIndex is now the displacement portion of the address (rather 
than base).

llvm-svn: 26382
 2006-02-26 09:12:34 +00:00
Evan Cheng
5abf5b2ce4 Print ConstantPoolSDNode offset field. 
llvm-svn: 26381
 2006-02-26 08:36:57 +00:00
Evan Cheng
a93aa7e4c9 Fixed ConstantPoolIndex operand asm print bug. This fixed 2005-07-17-INT-To-FP 
and 2005-05-12-Int64ToFP.

llvm-svn: 26380
 2006-02-26 08:28:12 +00:00
Jim Laskey
8ad04a557b Format large struct constants for readability. 
llvm-svn: 26379
 2006-02-25 12:27:03 +00:00
Evan Cheng
0b1f2f9d11 New test case: use lea for imul by some constants. 
llvm-svn: 26378
 2006-02-25 10:16:10 +00:00
Evan Cheng
cb55494fa8 lea.ll is XFAIL until we implement convertToThreeAddress. 
llvm-svn: 26377
 2006-02-25 10:15:22 +00:00
Evan Cheng
de768027d9 * Cleaned up addressing mode matching code. 
* Cleaned up and tweaked LEA cost analysis code. Removed some hacks.
* Handle ADD $X, c to MOV32ri $X+c. These patterns cannot be autogen'd and
  they need to be matched before LEA.

llvm-svn: 26376
 2006-02-25 10:09:08 +00:00
Evan Cheng
8a6f03bb0e Updates. 
llvm-svn: 26375
 2006-02-25 10:04:07 +00:00
Evan Cheng
995c9806ba * Allow mul, shl nodes to be codegen'd as LEA (if appropriate). 
* Add patterns to handle GlobalAddress, ConstantPool, etc.
  MOV32ri to materialize these nodes in registers.
  ADD32ri to handle %reg + GA, etc.
  MOV32mi to handle store GA, etc. to memory.

llvm-svn: 26374
 2006-02-25 10:02:21 +00:00
Evan Cheng
1bd4077002 ConstantPoolIndex is now the displacement field of addressing mode. 
llvm-svn: 26373
 2006-02-25 09:56:50 +00:00
Evan Cheng
bd1279fd2a Added a common about the need for X86ISD::Wrapper. 
llvm-svn: 26372
 2006-02-25 09:55:19 +00:00
Evan Cheng
026fd6af96 Added an offset field to ConstantPoolSDNode. 
llvm-svn: 26371
 2006-02-25 09:54:52 +00:00
Chris Lattner
b51e6aef5d this fails, mark it as such 
llvm-svn: 26370
 2006-02-25 08:18:43 +00:00
Chris Lattner
4f083f08ca Fix a bug that Evan exposed with some changes he's making, and that was 
exposed with a fastcc problem (breaking pcompress2 on x86 with -enable-x86-fastcc).

When reloading a reused reg, make sure to invalidate the reloaded reg, and
check to see if there are any other pending uses of the same register.

llvm-svn: 26369
 2006-02-25 02:17:31 +00:00
Chris Lattner
b06aa63852 Remove debugging printout :) 
Add a minor compile time win, no codegen change.

llvm-svn: 26368
 2006-02-25 02:03:40 +00:00
Chris Lattner
a342126820 Refactor some code from being inline to being out in a new class with methods. 
This gets rid of two gotos, which is always nice, and also adds some comments.

No functionality change, this is just a refactor.

llvm-svn: 26367
 2006-02-25 01:51:33 +00:00
Evan Cheng
07ffd089da Fix an obvious bug exposed when we are doing 
ADD X, 4
==>
MOV32ri $X+4, ...

llvm-svn: 26366
 2006-02-25 01:37:02 +00:00
Chris Lattner
bc35137363 Add memory printing support for PPC. Input memory operands now work with 
inline asms! :)

llvm-svn: 26365
 2006-02-24 20:27:40 +00:00
Chris Lattner
e2b0023f4e Use the PrintAsmMemoryOperand to print addressing modes. 
llvm-svn: 26364
 2006-02-24 20:21:58 +00:00
Chris Lattner
68518b9e83 Add a PrintAsmMemoryOperand method for printing addresses 
llvm-svn: 26363
 2006-02-24 20:21:12 +00:00
Chris Lattner
22356863a0 Pass all the flags to the asm printer, not just the # operands. 
llvm-svn: 26362
 2006-02-24 19:50:58 +00:00
Chris Lattner
f1e0c1f0a8 rename NumOps -> NumVals to avoid shadowing a NumOps var in an outer scope. 
Add support for addressing modes.

llvm-svn: 26361
 2006-02-24 19:18:20 +00:00
Chris Lattner
e00cf77ecb Refactor operand adding out to a new AddOperand method 
llvm-svn: 26358
 2006-02-24 18:54:03 +00:00
Chris Lattner
291e17764d add a method 
llvm-svn: 26357
 2006-02-24 18:53:51 +00:00
Chris Lattner
304aeda827 Fix a problem that Nate noticed that boils down to an over conservative check 
in the code that does "select C, (X+Y), (X-Y) --> (X+(select C, Y, (-Y)))".
We now compile this loop:

LBB1_1: ; no_exit
        add r6, r2, r3
        subf r3, r2, r3
        cmpwi cr0, r2, 0
        addi r7, r5, 4
        lwz r2, 0(r5)
        addi r4, r4, 1
        blt cr0, LBB1_4 ; no_exit
LBB1_3: ; no_exit
        mr r3, r6
LBB1_4: ; no_exit
        cmpwi cr0, r4, 16
        mr r5, r7
        bne cr0, LBB1_1 ; no_exit

into this instead:

LBB1_1: ; no_exit
        srawi r6, r2, 31
        add r2, r2, r6
        xor r6, r2, r6
        addi r7, r5, 4
        lwz r2, 0(r5)
        addi r4, r4, 1
        add r3, r3, r6
        cmpwi cr0, r4, 16
        mr r5, r7
        bne cr0, LBB1_1 ; no_exit

llvm-svn: 26356
 2006-02-24 18:05:58 +00:00
Jim Laskey
fe79552c25 Add pointer and reference types. Added short-term code to ignore NULL types 
(to allow llvm-gcc4 to build.)

llvm-svn: 26355
 2006-02-24 16:46:40 +00:00
Jeff Cohen
9773f9c447 Get VC++ building again. 
llvm-svn: 26351
 2006-02-24 02:52:40 +00:00
Chris Lattner
6248339a24 Implement (most of) selection of inline asm memory operands. 
llvm-svn: 26350
 2006-02-24 02:13:54 +00:00
Chris Lattner
1ffa8d3666 Select inline asm memory operands. 
llvm-svn: 26349
 2006-02-24 02:13:31 +00:00
Chris Lattner
3d451516ec Implement selection of inline asm memory operands 
llvm-svn: 26348
 2006-02-24 02:13:12 +00:00
Chris Lattner
0f3130afc2 Add some hooks for selecting memory addresses. 
llvm-svn: 26347
 2006-02-24 02:12:52 +00:00
Chris Lattner
3f267c1683 Lower C_Memory operands. 
llvm-svn: 26346
 2006-02-24 01:11:24 +00:00
Chris Lattner
b5df999862 Recognize memory operand codes 
llvm-svn: 26345
 2006-02-24 01:10:46 +00:00
Chris Lattner
0957a2e87c Add C_Memory operand type 
llvm-svn: 26344
 2006-02-24 01:10:14 +00:00
Chris Lattner
cd5ae150bb Parse the %*# constraint modifiers 
llvm-svn: 26341
 2006-02-23 23:36:53 +00:00
Chris Lattner
d150672d87 add a new flag 
llvm-svn: 26340
 2006-02-23 23:36:23 +00:00
Jim Laskey
ddac333e72 Added basic support for typedefs. 
llvm-svn: 26339
 2006-02-23 22:37:30 +00:00
Evan Cheng
2720cd1d7e PPC JIT relocation model should be DynamicNoPIC. 
llvm-svn: 26338
 2006-02-23 22:18:07 +00:00