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235 Commits

Author SHA1 Message Date
Chris Lattner a10fff51d9 Rename SSARegMap -> MachineRegisterInfo in keeping with the idea 
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
 2007-12-31 04:13:23 +00:00
Chris Lattner f3ebc3f3d2 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Evan Cheng ec271b104c Temporary solution: added a different set of BCTRL_Macho / BCTRL_ELF with right callee-saved defs set for ppc64. 
llvm-svn: 43248
 2007-10-23 06:42:42 +00:00
Evan Cheng 58d1eacd80 Prevent PPC::BCC first operand, the PRED number, from being isel'd into a LI instruction. 
llvm-svn: 37790
 2007-06-29 01:25:06 +00:00
Dan Gohman 309d3d51b3 Move ComputeMaskedBits, MaskedValueIsZero, and ComputeNumSignBits from 
TargetLowering to SelectionDAG so that they have more convenient
access to the current DAG, in preparation for the ValueType routines
being changed from standalone functions to members of SelectionDAG for
the pre-legalize vector type changes.

llvm-svn: 37704
 2007-06-22 14:59:07 +00:00
Chris Lattner 3e21eb7fd7 Fix a bug which caused us to never be able to use signed comparisons for 
equality comparisons of a constant.  This allows us to codegen the 'sintzero'
loop in PR1288 as:

LBB1_1: ;cond_next
        li r4, 0
        addi r2, r2, 1
        stw r4, 0(r3)
        addi r3, r3, 4
        cmpwi cr0, r2, -1
        bne cr0, LBB1_1 ;cond_next

instead of:

LBB1_1: ;cond_next
        addi r2, r2, 1
        li r4, 0
        xoris r5, r2, 65535
        stw r4, 0(r3)
        addi r3, r3, 4
        cmplwi cr0, r5, 65535
        bne cr0, LBB1_1 ;cond_next

This implements CodeGen/PowerPC/compare-simm.ll, and also cuts 74
instructions out of kc++.

llvm-svn: 35590
 2007-04-02 05:59:42 +00:00
Chris Lattner 1ef9cd400d eliminate static ctors for Statistic objects. 
llvm-svn: 32703
 2006-12-19 22:59:26 +00:00
Jim Laskey 095e6f3044 Reduce number of instructions to load 64-bit constants. 
llvm-svn: 32481
 2006-12-12 13:23:43 +00:00
Bill Wendling 9bfb1e1f29 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Evan Cheng 20350c4025 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead 
of opcode and number of operands.

llvm-svn: 31947
 2006-11-27 23:37:22 +00:00
Chris Lattner be9377a1e3 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 e0263794f4 rename PPC::COND_BRANCH to PPC::BCC 
llvm-svn: 31834
 2006-11-17 22:14:47 +00:00
Chris Lattner 8c6a41ea12 start using PPC predicates more consistently. 
llvm-svn: 31833
 2006-11-17 22:10:59 +00:00
Chris Lattner 6f5840c409 add patterns for ppc32 preinc stores. ppc64 next. 
llvm-svn: 31775
 2006-11-16 00:41:37 +00:00
Chris Lattner 474b5b7c95 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
Chris Lattner b542925b22 remove a ton of custom selection logic no longer needed 
llvm-svn: 31733
 2006-11-14 18:43:11 +00:00
Chris Lattner c5102bfc7c 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 c9fa36d706 implement preinc support for r+i loads on ppc64 
llvm-svn: 31654
 2006-11-10 23:58:45 +00:00
Chris Lattner ce6455489a 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
Evan Cheng 6cd0909da7 Match tblegen changes. 
llvm-svn: 31571
 2006-11-08 20:34:28 +00:00
Chris Lattner a801fcedd3 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
Reid Spencer de46e48420 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Chris Lattner 3e36e07db2 fix miscompilation of llvm.isunordered, where we branched on the opposite 
condition.  This fixes miscompilation of Olden/bh and many others.

llvm-svn: 31301
 2006-10-30 23:02:25 +00:00
Nate Begeman d31efd190f Fold AND and ROTL more often 
llvm-svn: 30577
 2006-09-22 05:01:56 +00:00
Chris Lattner da9b1a9322 Improve PPC64 equality comparisons like PPC32 comparisons. 
llvm-svn: 30510
 2006-09-20 04:33:27 +00:00
Chris Lattner aa3926b7ea Two improvements: 
1. Codegen this comparison:
     if (X == 0x8000)

as:

        cmplwi cr0, r3, 32768
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 0
        ori r2, r2, 32768
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next


2. Codegen this comparison:
      if (X == 0x12345678)

as:

        xoris r2, r3, 4660
        cmplwi cr0, r2, 22136
        bne cr0, LBB1_2 ;cond_next

instead of:

        lis r2, 4660
        ori r2, r2, 22136
        cmpw cr0, r3, r2
        bne cr0, LBB1_2 ;cond_next

llvm-svn: 30509
 2006-09-20 04:25:47 +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 ab8297f92d Match tblgen changes. 
llvm-svn: 29895
 2006-08-26 01:07:58 +00:00
Chris Lattner bc485fdc4c Fix PowerPC/2006-08-15-SelectionCrash.ll and simplify selection code. 
llvm-svn: 29715
 2006-08-15 23:48:22 +00:00
Evan Cheng bd1c5a8fb8 Match tablegen changes. 
llvm-svn: 29604
 2006-08-11 09:08:15 +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 b9d34bd098 Match tablegen isel changes. 
llvm-svn: 29549
 2006-08-07 22:28:20 +00:00
Evan Cheng b572401bea Remove InFlightSet hack. No longer needed. 
llvm-svn: 29373
 2006-07-28 00:47:19 +00:00
Evan Cheng f300896420 Remove NodeDepth 
llvm-svn: 29338
 2006-07-27 06:40:15 +00:00
Chris Lattner 2f8c2d8ef2 shrink libllvmgcc.dylib another 25K 
llvm-svn: 28971
 2006-06-28 22:00:36 +00:00
Chris Lattner ca9c488528 Don't match 64-bit bitfield inserts into rlwimi's. todo add rldimi. :) 
llvm-svn: 28944
 2006-06-27 21:08:52 +00:00
Chris Lattner f882c54505 Fix ppc64 jump tables 
llvm-svn: 28941
 2006-06-27 20:46:17 +00:00
Chris Lattner 9a40cca40f Fix variable shadowing issue 
llvm-svn: 28922
 2006-06-27 00:10:13 +00:00
Chris Lattner 97b3da1519 Implement a bunch of 64-bit cleanliness work. With this, treeadd builds (but 
doesn't work right).

llvm-svn: 28921
 2006-06-27 00:04:13 +00:00
Chris Lattner b055c8737f Work around a nasty tblgen bug where it doesn't add operands for varargs 
nodes correctly.

llvm-svn: 28745
 2006-06-10 01:15:02 +00:00
Chris Lattner 1fbb0d38c7 Fix build failure of povray 
llvm-svn: 28473
 2006-05-25 18:06:16 +00:00
Chris Lattner 630bbcef8d Fix Benchmarks/MallocBench/cfrac 
llvm-svn: 28471
 2006-05-25 16:54:16 +00:00
Evan Cheng 4af59dac0b Assert if InflightSet is not cleared after instruction selecting a BB. 
llvm-svn: 28459
 2006-05-25 00:24:28 +00:00
Evan Cheng 1a8e74d113 Clear HandleMap and ReplaceMap after instruction selection. Or it may cause 
non-deterministic behavior.

llvm-svn: 28454
 2006-05-24 20:46:25 +00:00
Chris Lattner eb755fc1b3 Make PPC call lowering more aggressive, making the isel matching code simple 
enough to be autogenerated.

llvm-svn: 28354
 2006-05-17 19:00:46 +00:00
Chris Lattner b1e9e37c58 Switch PPC over to a call-selection model where the lowering code creates 
the copyto/fromregs instead of making the PPCISD::CALL selection code create
them.  This vastly simplifies the selection code, and moves the ABI handling
parts into one place.

llvm-svn: 28346
 2006-05-17 06:01:33 +00:00