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17155 Commits

Author SHA1 Message Date
Lauro Ramos Venancio
4642ca6589 bugfix: SP isn't resetted when function has FP and there is no spills. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33800 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 23:08:40 +00:00
Chris Lattner
c1ec780d1e Switch this back to using an std::map. DenseMap entries are getting invalidated 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33799 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 22:36:16 +00:00
Chris Lattner
1c1f112f74 Remove more malloc thrashing, this speeds up IPSCCP on kimwitu another 6.7%. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33796 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 21:15:06 +00:00
Evan Cheng
a21335dd76 Another thumb large stack offset codegen bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33795 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 21:08:39 +00:00
Chris Lattner
cc56aad06d Convert an std::set to SmallSet, this speeds up IPSCCP 17% on kimwitu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33794 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:57:39 +00:00
Chris Lattner
e777ff21b0 eliminate a malloc/free for (almost) every GEP processed. This speeds up 
IPSCCP 3.3% on kimwitu.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33793 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:51:48 +00:00
Chris Lattner
b59673e650 switch hash_map's over to DenseMap in SCCP. This speeds up SCCP by 30% in 
a release-assert build on kimwitu++.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33792 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 20:38:30 +00:00
Evan Cheng
05cc424082 Use MBB.empty() instead of MBB.size() for speed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33789 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 19:09:19 +00:00
Evan Cheng
1dd6a606ad Watch out for empty BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33788 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 18:49:02 +00:00
Reid Spencer
a07cb7def5 Remove dead code and fix indentation per Chris' review comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33785 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 14:41:37 +00:00
Reid Spencer
1b19cd35fe Use short form of BinaryOperator create function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33784 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 14:09:34 +00:00
Reid Spencer
cc46cdb47c Use short form of binary operator create functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33783 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 14:08:20 +00:00
Reid Spencer
ebe57e36df Fix a comment that needed to change after SHIFT patch landed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33781 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 13:54:55 +00:00
Evan Cheng
f48ae3353e Ugh. Only meant to do this in thumb mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33780 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 08:58:48 +00:00
Chris Lattner
0737c24053 bugfix for reid's shift patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33779 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 05:29:55 +00:00
Chris Lattner
2d1222c060 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33778 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 04:36:46 +00:00
Reid Spencer
832254e1c2 Changes to support making the shift instructions be true BinaryOperators. 
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 02:16:23 +00:00
Evan Cheng
9a2ef9509e Fix a bug in getARMCMP (which translate CondCode to ARM specific CC) when the RHS is a constant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33775 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-02 01:53:26 +00:00
Evan Cheng
b0636156ef Thumb does not have clz. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33773 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 23:34:03 +00:00
Devang Patel
95ced11b1a Dump function names when debug-pass=Executions is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33772 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 22:38:33 +00:00
Chris Lattner
fd905caa77 Fix Transforms/InstCombine/2007-02-01-LoadSinkAlloca.ll, a serious code 
pessimization where instcombine can sink a load (good for code size) that
prevents an alloca from being promoted by mem2reg (bad for everything).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33771 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 22:30:07 +00:00
Devang Patel
505f36aede Pretty print pass manager 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33766 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 22:09:37 +00:00
Devang Patel
e27ae7e44e cvs commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33765 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 22:08:25 +00:00
Lauro Ramos Venancio
c33f674ca3 Define PrivateGlobalPrefix for ARM Linux. (Fix CodeGen/ARM/large_stack.ll) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33763 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 21:43:53 +00:00
Evan Cheng
556f33c6e2 Pasto. Lots of it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33762 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 20:44:52 +00:00
Reid Spencer
8282e3f92b Ensure that ConvertOperandToType generates a result conversion by 
initializing the Res variable to 0 and asserting it is not zero after the
result should have been created.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33761 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 19:14:51 +00:00
Chris Lattner
8e8eda78cc Fix bugs in the inliner having to do with single-entry phi nodes and valuemap 
updating.  These were exposed by Devang's recent passmgr changes (with
non-default passorderings) because now the inliner can be interleved with
the LCSSA pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33760 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 18:48:38 +00:00
Lauro Ramos Venancio
6f46e59d2a Fix .thumb_func directive on linux. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33759 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 18:25:34 +00:00
Jim Laskey
b47f32e0e9 Slip up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33758 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 17:48:20 +00:00
Jim Laskey
29bf16a0bd Emit labels as label_n and not as debug_n 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33757 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 17:46:10 +00:00
Andrew Lenharth
5dfbaf1fe3 preserve sections of globals 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33756 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 17:12:54 +00:00
Jim Laskey
b82313fdc2 Support for non-landing pad exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33755 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 16:31:34 +00:00
Evan Cheng
b43216ee4a - Off by one bugs in maximum displacement calculation / testing. 
- In thumb mode, a new constpool island BB size should be 4 + 2 to
  compensate for the potential padding due to alignment requirement.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33753 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 10:16:15 +00:00
Anton Korobeynikov
b25fe82671 Fixed uninitialized stuff inside LegalizeDAG. Fortunately, the only 
affected part is codegen of "memove" inside x86 backend. This fixes
PR1144


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33752 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 08:39:52 +00:00
Chris Lattner
0de4439ad1 improve comments, add an assertion 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33750 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 05:33:21 +00:00
Chris Lattner
94c002a190 rename DenseMap to IndexedMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33749 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 05:32:05 +00:00
Chris Lattner
2e21fce987 silence some warnings when assertions are disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33747 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 04:59:37 +00:00
Chris Lattner
acf8145b62 silence warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33746 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 04:57:00 +00:00
Chris Lattner
fea997aac5 Fit in 80 columns 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33745 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 04:55:59 +00:00
Evan Cheng
e0c2b6b9a8 .set pc relative displacement bug: label should be moved down one instruction 
to just before the add r1, pc:

Before:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        mov r1, #PCRELV0
        add r1, pc

Now:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
        mov r1, #PCRELV0
LPCRELL0:
        add r1, pc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33744 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 03:04:49 +00:00
Evan Cheng
736cefff85 Add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33743 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 02:46:20 +00:00
Evan Cheng
9312313a56 Also set alignment of stack-based structs to 4 in thumb mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33741 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 02:18:36 +00:00
Evan Cheng
9d945f78e5 Special epilogue for vararg functions. We cannot do a pop to pc because 
there follows a sp increment for the va register save region. Instead issue
a separate pop to another register, increment sp, and then return:
        pop {r4, r5, r6, r7}
        pop {r3}
        add sp, #3 * 4
        bx r3


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33739 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:49:46 +00:00
Devang Patel
aed293dfba Add PrintVersionMessage() that tools can use to print version number 
without exiting program.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33737 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:43:37 +00:00
Chris Lattner
527fae12c3 Emit a better assertion message for PR1133 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33736 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:21:12 +00:00
Evan Cheng
2021abe154 Pessmistically assume the .align 2 before the first constpool entry adds 
two bytes padding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33734 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:09:47 +00:00
Evan Cheng
5b49ab9996 Possible JT improvements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33733 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 01:07:48 +00:00
Chris Lattner
9aa2895360 Fix CodeGen/PowerPC/2007-01-31-InlineAsmAddrMode.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33732 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-02-01 00:39:08 +00:00
Evan Cheng
3bf12d0460 Don't emit unnecessary .align directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33729 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 23:39:39 +00:00
Evan Cheng
a2e35588c6 Handle an interesting corner case: the constpool_entry being reference is two 
instructions away, i.e. its address is equal to PC.
        %r0 = tLDRpci <cp#0>
        bx
        CONSTPOOL_ENTRY 0 <cp#0>, 4


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33728 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 23:35:18 +00:00
Evan Cheng
7588ad478a Don't want to add FramePtr to callee save spill list twice. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33727 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 23:17:29 +00:00
Reid Spencer
92905d95a0 Fix build breakage by using correct arguments to getIndexedType in the 
GEP constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33726 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 22:30:26 +00:00
Evan Cheng
3548006a29 Darwin ABI requires FP to point to stack slot of prev FP. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33724 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 22:25:33 +00:00
Evan Cheng
11a065e599 Add entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33723 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 22:11:38 +00:00
Evan Cheng
0fa10515ee Thumb add sp, #imm requires the immediate value be multiple of 4. For now, 
change preferred alignment of short, byte, bool to 4.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33722 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 22:08:40 +00:00
Evan Cheng
86eb515359 Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33721 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 22:06:44 +00:00
Evan Cheng
dff1ab2001 Dead comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33719 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 21:31:25 +00:00
Reid Spencer
9e693eb499 Add some debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33718 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 21:27:38 +00:00
Evan Cheng
3471b60e95 Thumb asm syntax does not want 's' suffix for flag setting opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33717 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 20:12:31 +00:00
Chris Lattner
fbbe92f5fd remove temporary vectors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33715 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 20:08:52 +00:00
Chris Lattner
20066f936c eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33713 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 20:07:32 +00:00
Chris Lattner
699d144a4b eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33712 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:59:55 +00:00
Evan Cheng
c0dbec7e10 When determining whether a pc relative branch / load displacement fits in the 
instruction field, adjust it for PC value (4 for thumb, 8 for arm).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33711 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:57:44 +00:00
Chris Lattner
4c3d3a99d5 eliminate a temporary vector while parsing gep's from bc files. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33710 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:56:15 +00:00
Chris Lattner
95b9d6e5d8 A relatively simple PPC optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33709 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:49:20 +00:00
Chris Lattner
6ffbe17b3c implement the new GEP instruction ctors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33708 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 19:47:18 +00:00
Evan Cheng
a9b8b8d62c Some comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33707 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:29:27 +00:00
Evan Cheng
934536dab2 ConstPool island bug: watch out for cases where UserMI is the last MI of the BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33706 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:19:07 +00:00
Chris Lattner
a88d6ca6f9 Revert another incorrectly applied chunk, which fixes InstCombine/vec_insert_to_shuffle.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33705 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:09:17 +00:00
Chris Lattner
ad58eb3434 Fix a minor bug in my patch yesterday that broken ConstProp/bswap.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33704 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 18:04:55 +00:00
Lauro Ramos Venancio
b5b84f92bf ARM fix: Miscompilation when frame pointer can't be eliminated. Uninitialized frame pointer register is used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33703 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 13:12:46 +00:00
Evan Cheng
193f850880 Specify the right CC for comparison libcalls. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33702 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 09:30:58 +00:00
Evan Cheng
d385fd62cb Allow the target to override the ISD::CondCode that's to be used to test the 
result of the comparison libcall against zero.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33701 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 09:29:11 +00:00
Evan Cheng
b6ab2547cb Observe -soft-float. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33699 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 08:40:13 +00:00
Chris Lattner
b85210f508 minor cleanups. Fix off-by-one in accounting the number of nodes when the 
table grows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33698 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 06:04:41 +00:00
Chris Lattner
f7469af5a2 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33696 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:44:08 +00:00
Chris Lattner
e013540654 eliminate a temporary vector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33695 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:43:46 +00:00
Chris Lattner
d917fe5692 elimiante a temporary vector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33694 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:42:05 +00:00
Chris Lattner
55eb1c47de eliminate temporary vectors 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33693 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:40:53 +00:00
Chris Lattner
2b9a5daf7c Revise APIs for creating constantexpr GEPs to not require the use of vectors. 
This allows us to eliminate many temporary vectors, and theirassociated malloc/free pairs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33692 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 04:40:28 +00:00
Evan Cheng
0c61584d05 - Added Thumb constpool island support. 
- Islands are inserted right after the user MI since thumb LDR cannot encode
  negative offset.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33690 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 02:22:22 +00:00
Chris Lattner
a4f4659865 Move symbolic constant folding code to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33688 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:53:10 +00:00
Chris Lattner
03dd25ca96 Move some symbolic constant folding code out of instcombine into a place 
it can be used by multiple clients.  This specifically allows the inliner
to constant fold symbolically.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33687 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-31 00:51:48 +00:00
Chris Lattner
2e3a1d137c The local "ConstantFold" method is now just a watered down version of 
ConstantFoldInstOperands.  Switch to ConstantFoldInstOperands and remove
ConstantFold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33683 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:52:44 +00:00
Chris Lattner
79066fa6ac Adjust #includes to match movement of constant folding code from transformutils to libanalysis. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33680 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:46:24 +00:00
Chris Lattner
5520732b24 move a bunch of constant folding code f rom Transforms/Utils/Local.cpp into 
libanalysis/ConstantFolding.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33679 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:45:45 +00:00
Chris Lattner
4973190b07 remove now-dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33678 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:29:47 +00:00
Chris Lattner
ff2dad3128 the inliner pass now passes targetdata down through the inliner api's 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33677 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:28:39 +00:00
Chris Lattner
1dfdf8255e The inliner/cloner can now optionally take TargetData info, which can be 
used by constant folding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33676 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:22:39 +00:00
Chris Lattner
3cab071f6f reformat comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33675 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:16:22 +00:00
Chris Lattner
0a19ffaf58 pass TD to constant folding apis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33674 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:16:15 +00:00
Chris Lattner
72d88ae544 adjust to constant folding api changes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33673 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:15:43 +00:00
Chris Lattner
cd2492e6ff use smallvector instead of vector to make constant folding a bit more efficient 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33672 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:15:19 +00:00
Chris Lattner
6c1f56574c adjust to api change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33671 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:14:52 +00:00
Chris Lattner
9fa038dc21 Change constant folding APIs to take an optional TargetData, and change 
ConstantFoldInstOperands/ConstantFoldCall to take a pointer to an array
of operands + size, instead of an std::vector.

In some cases, switch to using a SmallVector instead of a vector.
This allows us to get rid of some special case gross code that was there
to avoid the cost of constructing a vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33670 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:13:49 +00:00
Evan Cheng
36640905e1 During PEI, if the immediate value of sp + offset is too large (i.e. something 
that would require > 3 instructions to materialize), load the immediate from a
constpool entry.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33667 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 23:01:46 +00:00
Chris Lattner
db43c63389 remove some bits that are not yet meant to land. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33666 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:50:32 +00:00
Chris Lattner
c5eff4488b Symbolically evaluate constant expressions like &A[123] - &A[4].f. 
This occurs in C++ code like:

#include <iostream>
#include <iterator>
int a[] = { 1, 2, 3, 4, 5 };
int main() {
  using namespace std;
  copy(a, a + sizeof(a)/sizeof(a[0]), ostream_iterator<int>(cout, "\n"));
  return 0;
}

Before we would decide the loop trip count is:
sdiv (i32 sub (i32 ptrtoint (i32* getelementptr ([5 x i32]* @a, i32 0, i32 5) to i32), i32 ptrtoint ([5 x i32]* @a to i32)), i32 4)

Now we decide it is "5".  Amazing.

This code will need to be refactored, but I'm doing that as a separate
commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33665 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 22:32:46 +00:00
Evan Cheng
c60e76d139 - Fix codegen for pc relative constant (e.g. JT) in thumb mode: 
.set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        add r1, pc, #PCRELV0
This is not legal since add r1, pc, #c requires the constant be a multiple of 4.
Do the following instead:
        .set PCRELV0, (LJTI1_0_0-(LPCRELL0+4))
LPCRELL0:
        mov r1, #PCRELV0
        add r1, pc

- In thumb mode, it's not possible to use .set generate a pc relative stub
  address. The stub is ARM code which is in a different section from the thumb
  code. Load the value from a constpool instead.
- Some asm printing clean up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33664 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:37:08 +00:00
Reid Spencer
5cbf985dcb For PR1136: Rename GlobalVariable::isExternal as isDeclaration to avoid 
confusion with external linkage types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33663 91177308-0d34-0410-b5e6-96231b3b80d8
 2007-01-30 20:08:39 +00:00