maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
31,358 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

18179 Commits

Author SHA1 Message Date
Dale Johannesen 4bbd2eefba Fix incorrect combination of different loads. Reenable zext-over-truncate 
combination.

llvm-svn: 35517
 2007-03-30 21:38:07 +00:00
Evan Cheng 9a2a7b174a Don't add the same MI to register reuse "last def/use" twice if it reads the 
register more than once.

llvm-svn: 35513
 2007-03-30 20:21:35 +00:00
Evan Cheng 48dd5e7d44 Bug fix for PR1279. When isDead is propagate by copy coalescing, we keep length 
of dead def live interval at 1 to avoid multiple def's targeting the same
register. The previous patch missed a case where the source operand is live-in.
In that case, remove the whole interval.

llvm-svn: 35512
 2007-03-30 20:18:35 +00:00
Zhou Sheng fd28a33031 Make sure the use of ConstantInt::getZExtValue() for shift amount safe. 
llvm-svn: 35510
 2007-03-30 17:20:39 +00:00
Reid Spencer 8c3d3dce2b For PR1293: 
* Rename the FunctionType* parameter from M to FT on all the functions.
* Implement a fix for PR1293 by just asserting that library functions that
  must return pointers should have pointer typed results. This just makes
  sure that we don't attempt to use an uninitialized integer or something
  later on.

llvm-svn: 35508
 2007-03-30 16:41:50 +00:00
Zhou Sheng b25806fa5f 1. Make sure the use of ConstantInt::getZExtValue() for getting shift 
amount is safe.
2. Use new method on ConstantInt instead of (? :) operator.
3. Use new method uge() on ConstantInt to simplify codes.

llvm-svn: 35505
 2007-03-30 09:29:48 +00:00
Zhou Sheng 5e60a4a6b0 Use APInt operation instead of ConstantExpr::getXX. 
llvm-svn: 35503
 2007-03-30 05:45:18 +00:00
Reid Spencer ef01c47512 For PR1289: Regenerate 
llvm-svn: 35500
 2007-03-30 01:37:39 +00:00
Reid Spencer cf2ccbff1a For PR1289: 
Check at the end of the parse that there are no unresolved types and no
undefined values. Issue errors if there are. This gets rid of the need
for implementation or checkpoint by ensuring you can't finish a parse with
undefined things.

llvm-svn: 35499
 2007-03-30 01:37:13 +00:00
Bill Wendling 2fbcbc16b4 Add MMX calling conventions. 
llvm-svn: 35489
 2007-03-30 00:35:22 +00:00
Evan Cheng 045414aa8e New entry. 
llvm-svn: 35480
 2007-03-29 21:40:13 +00:00
Evan Cheng cc44b1e743 Can't re-materialize mov r, imm in thumb since mov would clobber the condition code. 
llvm-svn: 35479
 2007-03-29 21:38:31 +00:00
Reid Spencer c7f485fd71 Use the stat information in the Path object, if it is already obtained. This 
avoids a call to ::fstat by MappedFile when the file size information was
already obtained by the Path object.

llvm-svn: 35477
 2007-03-29 19:11:22 +00:00
Reid Spencer 200c6f9c3d For PR789: 
Make the sys::Path::getFileStatus function more efficient by having it
return a pointer to the FileStatus structure rather than copy it. Adjust
uses of the function accordingly. Also, fix some memory issues in sys::Path.

llvm-svn: 35476
 2007-03-29 19:05:44 +00:00
Chris Lattner 7c82675afa the bytecode reader supports dematerializeFunction 
llvm-svn: 35475
 2007-03-29 18:58:08 +00:00
Reid Spencer 0833b81248 Regenerate. 
llvm-svn: 35473
 2007-03-29 18:50:01 +00:00
Reid Spencer 01a599a202 Give users a grace period on the implementation keyword. This *will* get 
removed in a few days.

llvm-svn: 35472
 2007-03-29 18:49:28 +00:00
Jeff Cohen 68e93b7c44 MS C does have inlining after all, just uses _inline instead of inline. 
llvm-svn: 35467
 2007-03-29 17:42:21 +00:00
Jeff Cohen 60c5522467 Determine absolute paths the correct way :) 
llvm-svn: 35464
 2007-03-29 17:27:38 +00:00
Reid Spencer d394617a55 Add a uniqueID field to the FileStatus structure for Paths. This will map 
to the inode number on Unix and something far less unique on Windows. The
windows case needs to be improved.

llvm-svn: 35461
 2007-03-29 17:00:31 +00:00
Reid Spencer 78b899f665 For PR789: 
Updates for change in interface of getFileStatus method of sys::Path class.

llvm-svn: 35458
 2007-03-29 16:48:16 +00:00
Reid Spencer 0f92f0e519 For PR789: 
* Add a method: bool isAbsolute() const, which determines if the path name
  is absolute or not.
* Implement caching of file status information in the Path object. Allow it
  to be updated forcefully or lazily re-fetched from the cached value.

llvm-svn: 35456
 2007-03-29 16:43:20 +00:00
Zhou Sheng b3a80b1d70 1. Make more use of APInt::getHighBitsSet/getLowBitsSet. 
2. Let APInt variable do the binary operation stuff instead of using
   ConstantExpr::getXXX.

llvm-svn: 35450
 2007-03-29 08:15:12 +00:00
Evan Cheng ccee35fd0d Disable load width reduction xform of variant (zext (truncate load x)) for 
big endian targets until llvm-gcc build issue has been resolved.

llvm-svn: 35449
 2007-03-29 07:56:46 +00:00
Evan Cheng 8f592160c0 Add support for hidden visibility to darwin/arm. 
llvm-svn: 35448
 2007-03-29 07:49:34 +00:00
Zhou Sheng 444af49cc0 Clean up some codes in InstCombiner::SimplifyDemandedBits(). 
llvm-svn: 35446
 2007-03-29 04:45:55 +00:00
Evan Cheng 86de3a009d New entries. 
llvm-svn: 35445
 2007-03-29 02:48:56 +00:00
Zhou Sheng a4475575c0 Clean up codes in InstCombiner::SimplifyDemandedBits(): 
1. Line out nested call of APInt::zext/trunc.
2. Make more use of APInt::getHighBitsSet/getLowBitsSet.
3. Use APInt[] operator instead of expression like "APIntVal & SignBit".

llvm-svn: 35444
 2007-03-29 02:26:30 +00:00
Zhou Sheng 4961cf1c06 1. Make the APInt variable do the binary operation stuff if possible 
instead of using ConstantExpr::getXX.
2. Use constant reference to APInt if possible instead of expensive
   APInt copy.

llvm-svn: 35443
 2007-03-29 01:57:21 +00:00
Jeff Cohen cc560c93eb Fix C Backend to generate code that works with Microsoft C for the benefit of 
front ends that do not depend on the GCC runtime (someday...).

llvm-svn: 35441
 2007-03-28 23:08:37 +00:00
Bill Wendling 4ad38abd40 Made this into a bug report: PR1286 
llvm-svn: 35439
 2007-03-28 19:07:34 +00:00
Anton Korobeynikov 0ad22563b8 Oops :) 
llvm-svn: 35438
 2007-03-28 18:38:33 +00:00
Anton Korobeynikov 7522c9d8e1 Don't allow MatchAddress recurse too much. This trims exponential 
behaviour in some cases.

llvm-svn: 35437
 2007-03-28 18:36:33 +00:00
Chris Lattner 2ba38c8711 add a note 
llvm-svn: 35435
 2007-03-28 18:17:19 +00:00
Chris Lattner bcd38852f2 Compile CodeGen/X86/lea-3.ll:test2 to: 
_test3:
        leaq (,%rdi,4), %rax
        orq %rdi, %rax
        ret

instead of:
_test2:
        movq %rdi, %rax
        shlq $2, %rax
        orq %rdi, %rax
        ret

llvm-svn: 35434
 2007-03-28 18:12:31 +00:00
Zhou Sheng 117477e28b Avoid unnecessary APInt construction. 
llvm-svn: 35431
 2007-03-28 17:38:21 +00:00
Chris Lattner a6527d6a61 Dan pointed out that this is done, remove it! 
llvm-svn: 35430
 2007-03-28 17:26:52 +00:00
Scott Michel 734077b1f0 First test check-in. 
llvm-svn: 35429
 2007-03-28 17:04:43 +00:00
Zhou Sheng 23f7a1c947 1. Make more use of getLowBitsSet/getHighBitsSet. 
2. Use APInt[] instead of "X & SignBit".
3. Clean up some codes.
4. Make the expression like "ShiftAmt = ShiftAmtC->getZExtValue()" safe.

llvm-svn: 35424
 2007-03-28 15:02:20 +00:00
Devang Patel 0b013d578d It is not possible to determine dominance between two PHI nodes 
based on their ordering. This is applicable to ETForest::dominates() also.

llvm-svn: 35423
 2007-03-28 14:57:43 +00:00
Zhou Sheng 2777a31850 1. Make more use of getLowBitsSet/getHighBitsSet. 
2. Make the APInt value do the zext/trunc stuff instead of using
   ConstantExpr::getZExt().

llvm-svn: 35422
 2007-03-28 09:19:01 +00:00
Evan Cheng d771485d89 Notes on re-materialization. 
llvm-svn: 35420
 2007-03-28 08:30:04 +00:00
Evan Cheng 603e49c6da Move rematerialization out of beta. 
llvm-svn: 35419
 2007-03-28 08:26:40 +00:00
Zhou Sheng c2d3309b99 Use UnknownBIts[BitWidth-1] instead of UnknownBIts & SignBits. 
llvm-svn: 35418
 2007-03-28 05:15:57 +00:00
Zhou Sheng 18570b1f14 Remove unused APInt variable. 
llvm-svn: 35414
 2007-03-28 03:02:21 +00:00
Reid Spencer b7e45e705a Regenerate. 
llvm-svn: 35411
 2007-03-28 02:37:40 +00:00
Reid Spencer 2e35a58838 Replace the "implementation" keyword with "checkpoint". This more accurately 
describes its function as check against unresolved types and definitions.
This is handy for forcing error messages in assembly test cases or otherwise
ensuring that everything is resolved at that point in the assembly.

llvm-svn: 35410
 2007-03-28 02:36:42 +00:00
Zhou Sheng 57e3f7324b Clean up codes in ComputeMaskedBits(): 
1. Line out nested use of zext/trunc.
2. Make more use of getHighBitsSet/getLowBitsSet.
3. Use APInt[] != 0 instead of "(APInt & SignBit) != 0".

llvm-svn: 35408
 2007-03-28 02:19:03 +00:00
Evan Cheng 4388043b25 Scale 1 is always ok. 
llvm-svn: 35407
 2007-03-28 01:55:52 +00:00
Evan Cheng c2cba18f2b Remove isLegalAddressImmediate. 
llvm-svn: 35406
 2007-03-28 01:53:55 +00:00
Reid Spencer 6d8e75ddb2 No need to generate the implementation keyword any more. Its frivolous. 
llvm-svn: 35405
 2007-03-28 01:53:20 +00:00
Evan Cheng 07c42d43a2 GEP index sinking fixes: 
1) Take address scale into consideration. e.g. i32* -> scale 4.
2) Examine all the users of GEP.
3) Generalize to inter-block GEP's (no longer uses loopinfo).
4) Don't do xform if GEP has other variable index(es).

llvm-svn: 35403
 2007-03-28 01:49:39 +00:00
Reid Spencer a5c18bf798 For PR1280: 
When converting an add/xor/and triplet into a trunc/sext, only do so if the
intermediate integer type is a bitwidth that the targets can handle.

llvm-svn: 35400
 2007-03-28 01:36:16 +00:00
Evan Cheng b41697c006 Fix for PR1279. Dead def has a live interval of length 1. Copy coalescing should 
not violate that.

llvm-svn: 35396
 2007-03-28 01:30:37 +00:00
Bill Wendling 2338e21b2b Remove cruft I put in there... 
llvm-svn: 35394
 2007-03-28 01:02:54 +00:00
Chris Lattner c56e4920d2 Fix a problem building llvm-gcc on amd64-unknown-freebsd6.2, due to the 
system assembler not groking legal instructions like "leal (,%esi,8), %ecx".

llvm-svn: 35393
 2007-03-28 00:58:40 +00:00
Bill Wendling ad2db4a4cf Unbreak mmx arithmetic. It was barfing trying to do v8i8 arithmetic. 
llvm-svn: 35392
 2007-03-28 00:57:11 +00:00
Bill Wendling 999c77f89c Add the "unpack low packed data" instructions. This should be the last of 
the MMX instructions that are needed...

llvm-svn: 35389
 2007-03-27 21:20:36 +00:00
Devang Patel 5a1bd4045d Use SmallPtrSet. 
llvm-svn: 35388
 2007-03-27 20:50:46 +00:00
Bill Wendling 6dff51ae65 Fix so that pandn is emitted instead of an xor/and combo. Add integer 
comparison operators.

llvm-svn: 35385
 2007-03-27 20:22:40 +00:00
Evan Cheng a4ed8a512a Unbreaks non-debug builds. 
llvm-svn: 35383
 2007-03-27 16:44:48 +00:00
Lauro Ramos Venancio 682baf2dda "The C standards do say that "char" may either be a "signed char" or "unsigned 
char" and it is up to the compilers implementation or the platform which is
followed."
http://www.arm.linux.org.uk/docs/faqs/signedchar.php

llvm-svn: 35382
 2007-03-27 16:33:08 +00:00
Lauro Ramos Venancio 143b0dff31 bugfix: sometimes the spiller puts a load between the "mov lr, pc" and "bx" of a CALL_NOLINK. 
llvm-svn: 35381
 2007-03-27 16:19:21 +00:00
Anton Korobeynikov 37a0bfe128 Remove dead code 
llvm-svn: 35380
 2007-03-27 12:05:48 +00:00
Anton Korobeynikov 3a9d68181a Split big monster into small helpers. No functionality change. 
llvm-svn: 35379
 2007-03-27 11:29:11 +00:00
Evan Cheng c42406b5ad SDISel does not preserve all, it changes CFG and other info. 
llvm-svn: 35376
 2007-03-27 00:53:36 +00:00
Evan Cheng fdbdf43632 Don't call getOperandConstraint() if operand index is greater than 
TID->numOperands.

llvm-svn: 35375
 2007-03-27 00:48:28 +00:00
Devang Patel 2850c677af Spell check. 
llvm-svn: 35374
 2007-03-27 00:16:08 +00:00
Reid Spencer 54d5b1b8f8 Implement some minor review feedback. 
llvm-svn: 35373
 2007-03-26 23:58:26 +00:00
Reid Spencer 441486c172 For PR1271: 
Fix another incorrectly converted shift mask.

llvm-svn: 35371
 2007-03-26 23:45:51 +00:00
Devang Patel 4398e242dd Reduce malloc/free traffic. 
llvm-svn: 35370
 2007-03-26 23:19:29 +00:00
Devang Patel bea581d70c It is not possible to determie dominance between two PHI nodes 
based on their ordering.

llvm-svn: 35369
 2007-03-26 23:18:28 +00:00
Devang Patel 55566a972c Use std::vector<DFCalculateWorkObject> instead of 
std::vector<DFCalculateWorkObject *> to reduce malloc/free traffic.

llvm-svn: 35368
 2007-03-26 23:17:19 +00:00
Evan Cheng 7dbbd00b06 findRegisterUseOperand() changed. 
llvm-svn: 35366
 2007-03-26 22:41:48 +00:00
Evan Cheng 4a09b1b5be Fix for PR1266. Don't mark a two address operand IsKill. 
llvm-svn: 35365
 2007-03-26 22:40:42 +00:00
Evan Cheng ec3ac316e2 Change findRegisterUseOperand() to return operand index instead. 
llvm-svn: 35363
 2007-03-26 22:37:45 +00:00
Dale Johannesen fd18a0cdf4 Fix reversed logic in getRegsUsed. Rename RegStates to RegsAvailable to 
hopefully forestall similar errors.

llvm-svn: 35362
 2007-03-26 22:23:54 +00:00
Chris Lattner d2602d5054 eliminate use of std::set 
llvm-svn: 35361
 2007-03-26 20:40:50 +00:00
Reid Spencer e20090b88d Add a comment to explain a folding transform. 
llvm-svn: 35360
 2007-03-26 20:09:02 +00:00
Reid Spencer 755d0e7ffc Get better debug output by having modified instructions print both the 
original and new instruction. A slight performance hit with ostringstream
but it is only for debug.
Also, clean up an uninitialized variable warning noticed in a release build.

llvm-svn: 35358
 2007-03-26 17:44:01 +00:00
Reid Spencer 769a5a8e0b Get the number of bits to set in a mask correct for a shl/lshr transform. 
llvm-svn: 35357
 2007-03-26 17:18:58 +00:00
Bill Wendling 158f6092a2 Promote to v1i64 type... 
llvm-svn: 35353
 2007-03-26 08:03:33 +00:00
Bill Wendling 48a24419bf Updated. 
llvm-svn: 35352
 2007-03-26 07:55:58 +00:00
Bill Wendling 98d2104c6f Add support for the v1i64 type. This makes better code for this: 
#include <mmintrin.h>

extern __m64 C;

void baz(__v2si *A, __v2si *B)
{
  *A = C;
  _mm_empty();
}

We get this:

_baz:
        call "L1$pb"
"L1$pb":
        popl %eax
        movl L_C$non_lazy_ptr-"L1$pb"(%eax), %eax
        movq (%eax), %mm0
        movl 4(%esp), %eax
        movq %mm0, (%eax)
        emms
        ret

GCC gives us this:

_baz:
        pushl   %ebx
        call    L3
"L00000000001$pb":
L3:
        popl    %ebx
        subl    $8, %esp
        movl    L_C$non_lazy_ptr-"L00000000001$pb"(%ebx), %eax
        movl    (%eax), %edx
        movl    4(%eax), %ecx
        movl    16(%esp), %eax
        movl    %edx, (%eax)
        movl    %ecx, 4(%eax)
        emms
        addl    $8, %esp
        popl    %ebx
        ret

llvm-svn: 35351
 2007-03-26 07:53:08 +00:00
Evan Cheng 8275f0e0af SIGN_EXTEND_INREG requires one extra operand, a ValueType node. 
llvm-svn: 35350
 2007-03-26 07:12:51 +00:00
Reid Spencer 50898607a9 For PR1271: 
Fix SingleSource/Regression/C/2003-05-21-UnionBitFields.c by changing a
getHighBitsSet call to getLowBitsSet call that was incorrectly converted
from the original lshr constant expression.

llvm-svn: 35348
 2007-03-26 05:25:00 +00:00
Dale Johannesen e5866e7b89 Look through bitcast when finding IVs. (Chris' patch really.) 
llvm-svn: 35347
 2007-03-26 03:01:27 +00:00
Reid Spencer 52830327e9 For PR1271: 
Remove a use of getLowBitsSet that caused the mask used for replacement of
shl/lshr pairs with an AND instruction to be computed incorrectly. Its not
clear exactly why this is the case. This solves the disappearing shifts
problem, but it doesn't fix Regression/C/2003-05-21-UnionBitFields. It
seems there is more going on.

llvm-svn: 35342
 2007-03-25 21:11:44 +00:00
Chris Lattner 9bf53ffaa2 implement Transforms/InstCombine/cast2.ll:test3 and PR1263 
llvm-svn: 35341
 2007-03-25 20:43:09 +00:00
Reid Spencer 624766f8a2 Some cleanup from review: 
* Don't assume shift amounts are <= 64 bits
* Avoid creating an extra APInt in SubOne and AddOne by using -- and ++
* Add another use of getLowBitsSet
* Convert a series of if statements to a switch

llvm-svn: 35339
 2007-03-25 19:55:33 +00:00
Anton Korobeynikov 7037826c86 First step of switch lowering refactoring: perform worklist-driven 
strategy, emit JT's where possible.

llvm-svn: 35338
 2007-03-25 15:07:15 +00:00
Anton Korobeynikov e8ac2fce97 Fix authorship 
llvm-svn: 35337
 2007-03-25 13:44:26 +00:00
Chris Lattner 6d94bb79ac fold constantexprs more aggressively, fixing PR1265 
llvm-svn: 35336
 2007-03-25 05:47:04 +00:00
Reid Spencer 80263aadf3 Refactor several ConstantExpr::getXXX calls with ConstantInt arguments 
using the facilities of APInt. While this duplicates a tiny fraction of
the constant folding code, it also makes the code easier to read and
avoids large ConstantExpr overhead for simple, known computations.

llvm-svn: 35335
 2007-03-25 05:33:51 +00:00
Chris Lattner 26ad3e7191 add a note 
llvm-svn: 35334
 2007-03-25 05:10:46 +00:00
Zhou Sheng 222d5ebfd2 1. Avoid unnecessary APInt construction if possible. 
2. Use isStrictlyPositive() instead of isPositive() in two places where
   they need APInt value > 0 not only >=0.

llvm-svn: 35333
 2007-03-25 05:01:29 +00:00
Chris Lattner 77f0479833 Implement support for vector operands to inline asm, implementing 
CodeGen/X86/2007-03-24-InlineAsmVectorOp.ll

llvm-svn: 35332
 2007-03-25 05:00:54 +00:00
Chris Lattner 9c9e2f1af2 add a note 
llvm-svn: 35330
 2007-03-25 04:46:28 +00:00
Chris Lattner 8810241ebc Fix CodeGen/PowerPC/2007-03-24-cntlzd.ll 
llvm-svn: 35329
 2007-03-25 04:44:03 +00:00
Chris Lattner 3d7efa2586 implement initial support for the silly X constraint. Testcase here: CodeGen/X86/2007-03-24-InlineAsmXConstraint.ll 
llvm-svn: 35327
 2007-03-25 04:35:41 +00:00
Reid Spencer cd99fbdf3b Make more uses of getHighBitsSet and get rid of some pointless & of an 
APInt with its type mask.

llvm-svn: 35325
 2007-03-25 04:26:16 +00:00
Chris Lattner 843e44503c Implement CodeGen/X86/2007-03-24-InlineAsmMultiRegConstraint.ll 
llvm-svn: 35324
 2007-03-25 02:18:14 +00:00
Chris Lattner d685514e2e switch TargetLowering::getConstraintType to take the entire constraint, 
not just the first letter.  No functionality change.

llvm-svn: 35322
 2007-03-25 02:14:49 +00:00
Reid Spencer d8aad61d4d More APIntification: 
* Convert the last use of a uint64_t that should have been an APInt.
* Change ComputeMaskedBits to have a const reference argument for the Mask
  so that recursions don't cause unneeded temporaries. This causes temps
  to be needed in other places (where the mask has to change) but this
  change optimizes for the recursion which is more frequent.
* Remove two instances of &ing a Mask with getAllOnesValue. Its not
  needed any more because APInt is accurate in its bit computations.
* Start using the getLowBitsSet and getHighBits set methods on APInt
  instead of shifting. This makes it more clear in the code what is
  going on.

llvm-svn: 35321
 2007-03-25 02:03:12 +00:00
Chris Lattner 927f30da08 Allow the b/h/w/k constraints to be applied to values that have multiple alternatives, and end up not being registers. 
llvm-svn: 35320
 2007-03-25 02:01:03 +00:00
Chris Lattner 03a643aa69 enforce the proper range for the i386 N constraint. 
llvm-svn: 35319
 2007-03-25 01:57:35 +00:00
Chris Lattner c8ddca703d Fix test/CodeGen/X86/2007-03-24-InlineAsmPModifier.ll 
llvm-svn: 35318
 2007-03-25 01:44:57 +00:00
Chris Lattner 3a8248f79d fix a regression on vector or instructions. 
llvm-svn: 35314
 2007-03-24 23:56:43 +00:00
Chris Lattner 2a991268f7 don't rely on ADL 
llvm-svn: 35299
 2007-03-24 17:37:03 +00:00
Chris Lattner 7750e344d3 add a valuetype for v1i64, which is needed by mmx. 
llvm-svn: 35298
 2007-03-24 17:36:26 +00:00
Zhou Sheng e9ebd3f6ba Make some codes more efficient. 
llvm-svn: 35297
 2007-03-24 15:34:37 +00:00
Chris Lattner 43cab75914 add a bad case evan though of. 
llvm-svn: 35296
 2007-03-24 06:01:32 +00:00
Reid Spencer a962d18774 For PR1205: 
Convert some calls to ConstantInt::getZExtValue() into getValue() and
use APInt facilities in the subsequent computations.

llvm-svn: 35294
 2007-03-24 00:42:08 +00:00
Evan Cheng b7051f596a Adjust offset to compensate for big endian machines. 
llvm-svn: 35293
 2007-03-24 00:02:43 +00:00
Anton Korobeynikov 8aae2d7e1c Autodetect MMX & SSE stuff for AMD processors 
llvm-svn: 35292
 2007-03-23 23:46:48 +00:00
Bill Wendling 871c77cda1 PR1260: 
Add final support to get the QT example to compile.

llvm-svn: 35290
 2007-03-23 22:35:46 +00:00
Evan Cheng a883b58caf Make sure SEXTLOAD of the specific type is supported on the target. 
llvm-svn: 35289
 2007-03-23 22:13:36 +00:00
Reid Spencer 959a21d3dc For PR1205: 
* APIntify visitAdd and visitSelectInst
* Remove unused uint64_t versions of utility functions that have been
  replaced with APInt versions.
This completes most of the changes for APIntification of InstCombine. This
passes llvm-test and llvm/test/Transforms/InstCombine/APInt.

Patch by Zhou Sheng.

llvm-svn: 35287
 2007-03-23 21:24:59 +00:00
Evan Cheng e2f5f24e8e Also replace uses of SRL if that's also folded during ReduceLoadWidth(). 
llvm-svn: 35286
 2007-03-23 20:55:21 +00:00
Reid Spencer 6d39206bc2 For PR1205: 
APIntify visitDiv, visitMul and visitRem.

Patch by Zhou Sheng.

llvm-svn: 35283
 2007-03-23 20:05:17 +00:00
Chris Lattner 12b89cc148 switch AddReachableCodeToWorklist from being recursive to being iterative. 
llvm-svn: 35282
 2007-03-23 19:17:18 +00:00
Reid Spencer 6274c72ee1 For PR1205: 
APIntify several utility functions supporting logical operators and shift
operators.

Patch by Zhou Sheng.

llvm-svn: 35281
 2007-03-23 18:46:34 +00:00
Reid Spencer d96dc9020a Fix constant fold of div by zero and rem by zero to match IEEE 754 
requirements. We must return NaN in some cases and correctly signed
infinity in other cases. Passes CFP2006 (not that that says much).

llvm-svn: 35277
 2007-03-23 05:33:23 +00:00
Zhou Sheng 0900993ebc Make the "KnownZero ^ TypeMask" computation just once. 
llvm-svn: 35276
 2007-03-23 03:13:21 +00:00
Zhou Sheng 755f04b5d7 Simplify the code. 
llvm-svn: 35275
 2007-03-23 02:39:25 +00:00
Evan Cheng a824e79f06 A couple of bug fixes for reducing load width xform: 
1. Address offset is in bytes.
2. Make sure truncate node uses are replaced with new load.

llvm-svn: 35274
 2007-03-23 02:16:52 +00:00
Reid Spencer b722f2b110 For PR1205: 
APInt support for logical operators in visitAnd, visitOr, and visitXor.

Patch by Zhou Sheng.

llvm-svn: 35273
 2007-03-22 22:19:58 +00:00
Reid Spencer 4154e732e6 For PR1205: 
* APIntify commonIntCastTransforms
* APIntify visitTrunc
* APIntify visitZExt

Patch by Zhou Sheng.

llvm-svn: 35271
 2007-03-22 20:56:53 +00:00
Reid Spencer c3e3b8a32f For PR1205: 
* Re-enable the APInt version of MaskedValueIsZero.
* APIntify the Comput{Un}SignedMinMaxValuesFromKnownBits functions
* APIntify visitICmpInst.

llvm-svn: 35270
 2007-03-22 20:36:03 +00:00
Bill Wendling 7c17fbc5b7 We generate a shufflevector instruction, so we don't need the builtin 
intrinsic.

llvm-svn: 35269
 2007-03-22 20:29:26 +00:00
Bill Wendling d551a18783 Support added for shifts and unpacking MMX instructions. 
llvm-svn: 35266
 2007-03-22 18:42:45 +00:00
Dan Gohman dcb291faa4 Change uses of Function::front to Function::getEntryBlock for readability. 
llvm-svn: 35265
 2007-03-22 16:38:57 +00:00
Reid Spencer 478dcd0239 Add the NoUnwind function attribute. 
llvm-svn: 35260
 2007-03-22 02:14:48 +00:00
Reid Spencer 32096786f1 Regenerate. 
llvm-svn: 35259
 2007-03-22 02:14:08 +00:00
Reid Spencer a483577d21 Add support for the noreturn and nounwind function attributes. 
llvm-svn: 35258
 2007-03-22 02:13:23 +00:00
Nick Lewycky b0da7ed9c8 Fix broken optimization disabled by a logic bug. 
Analyze GEPs. If the indices are all zero, transfer whether the pointer is
known to be not null through the GEP.

Add a few more cases for xor and shift instructions.

llvm-svn: 35257
 2007-03-22 02:02:51 +00:00
Evan Cheng 464dc9b74c More opportunities to reduce load size. 
llvm-svn: 35254
 2007-03-22 01:54:19 +00:00
Evan Cheng a20815e157 Fix for PR1257. Bug in live range shortening as a result of copy coalescing 
where the destination is dead.

llvm-svn: 35252
 2007-03-22 01:26:05 +00:00
Reid Spencer f40711637f For PR1248: 
* Fix some indentation and comments in InsertRangeTest
* Add an "IsSigned" parameter to AddWithOverflow and make it handle signed
  additions. Also, APIntify this function so it works with any bitwidth.
* For the icmp pred ([us]div %X, C1), C2 transforms, exit early if the
  div instruction's RHS is zero.
* Finally, for icmp pred (sdiv %X, C1), -C2, fix an off-by-one error. The
  HiBound needs to be incremented in order to get the range test correct.

llvm-svn: 35247
 2007-03-21 23:19:50 +00:00
Dale Johannesen 0c6bb5eab7 repair x86 performance, dejagnu problems from previous change 
llvm-svn: 35245
 2007-03-21 21:51:52 +00:00
Anton Korobeynikov 4ad4bcdc2d Add TODO list for MSIL backend 
llvm-svn: 35244
 2007-03-21 21:48:59 +00:00
Anton Korobeynikov aa3090d815 Let the new backend begin! 
llvm-svn: 35242
 2007-03-21 21:38:25 +00:00
Dale Johannesen a827d03154 add generation of unnecessary push/pop around calls 
llvm-svn: 35241
 2007-03-21 21:16:39 +00:00
Evan Cheng d63baead9b fold (truncate (srl (load x), c)) -> (smaller load (x+c/vt bits)) 
llvm-svn: 35239
 2007-03-21 20:14:05 +00:00
Nicolas Geoffray 4ea5217880 Protect R31's frame offset from being used by callee-saved registers, when R31 
is the frame pointer.

llvm-svn: 35233
 2007-03-21 16:44:14 +00:00
Zhou Sheng 0458c1db71 Fix a bug in getAllOnesValue() which broke 
some test cases for bitwidth > 64.

llvm-svn: 35232
 2007-03-21 04:34:37 +00:00
Evan Cheng 61eee86487 Mark re-materializable instructions. 
llvm-svn: 35230
 2007-03-21 00:16:56 +00:00
Evan Cheng cba9538499 Updated. 
llvm-svn: 35229
 2007-03-20 22:32:39 +00:00
Evan Cheng 3578dd61c6 Potential spiller improvement. 
llvm-svn: 35228
 2007-03-20 22:22:38 +00:00
Dale Johannesen bacf4acf65 do not share old induction variables when this would result in invalid 
instructions (that would have to be split later)

llvm-svn: 35227
 2007-03-20 21:54:54 +00:00
Dale Johannesen d05a1a2ade maintain LiveIn when splitting blocks (register scavenging needs it) 
llvm-svn: 35226
 2007-03-20 21:35:06 +00:00
Devang Patel eb5d241d00 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.

llvm-svn: 35225
 2007-03-20 21:25:31 +00:00
Jeff Cohen 1baf5c84ab Fix some VC++ warnings. 
llvm-svn: 35224
 2007-03-20 20:43:18 +00:00
Jeff Cohen e06855e684 Fix (and simplify) 48-bit byte swap. 
Get pos/neg infinity the correct way.

llvm-svn: 35223
 2007-03-20 20:42:36 +00:00
Devang Patel 1758cb50de LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35221
 2007-03-20 20:18:12 +00:00
Lauro Ramos Venancio 971aa18867 Code clean up. 
llvm-svn: 35220
 2007-03-20 20:09:03 +00:00
Evan Cheng 550cf0369c Minor bug. 
llvm-svn: 35219
 2007-03-20 19:32:11 +00:00
Lauro Ramos Venancio a88c4a74f3 bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 
mov lr, pc
    bx lr
So, the function was not called.

llvm-svn: 35218
 2007-03-20 17:57:23 +00:00
Reid Spencer 8d364d0e17 Regenerate. 
llvm-svn: 35215
 2007-03-20 17:19:31 +00:00
Reid Spencer 0ad5cebb09 Don't delete things before their last use (avoids bad reads). 
llvm-svn: 35214
 2007-03-20 17:18:33 +00:00
Lauro Ramos Venancio 25878b45f5 CopyToReg source operand can be a physical register. 
llvm-svn: 35213
 2007-03-20 16:46:44 +00:00
Zhou Sheng b3949340c8 Simplify isHighOnes(). 
llvm-svn: 35211
 2007-03-20 12:49:06 +00:00
Evan Cheng 0e3278e505 First cut trivial re-materialization support. 
llvm-svn: 35208
 2007-03-20 08:13:50 +00:00
Evan Cheng 9e7b838469 Make two piece constant generation as a single instruction. It's re-materialized as a load from constantpool. 
llvm-svn: 35207
 2007-03-20 08:11:30 +00:00
Evan Cheng 39eb62ea3b New entry. 
llvm-svn: 35206
 2007-03-20 08:10:17 +00:00
Evan Cheng 61f39d186c Added MRegisterInfo hook to re-materialize an instruction. 
llvm-svn: 35205
 2007-03-20 08:09:38 +00:00
Chris Lattner 3e1d917e80 Two changes: 
1) codegen a shift of a register as a shift, not an LEA.
2) teach the RA to convert a shift to an LEA instruction if it wants something
   in three-address form.

This gives us asm diffs like:

-       leal (,%eax,4), %eax
+       shll $2, %eax

which is faster on some processors and smaller on all of them.

and, more interestingly:

-       movl 24(%esi), %eax
-       leal (,%eax,4), %edi
+       movl 24(%esi), %edi
+       shll $2, %edi

Without #2, #1 was a significant pessimization in some cases.

This implements CodeGen/X86/shift-codegen.ll

llvm-svn: 35204
 2007-03-20 06:08:29 +00:00
Chris Lattner f806e1cdbc fix indentation 
llvm-svn: 35202
 2007-03-20 02:25:53 +00:00
Reid Spencer 6fb989c5cd Regenerate. 
llvm-svn: 35199
 2007-03-20 01:13:36 +00:00
Reid Spencer d05bc52fec Plug some PATypeHolder memory leaks. 
llvm-svn: 35198
 2007-03-20 01:13:00 +00:00
Dale Johannesen e3a02be5f1 use types of loads and stores, not address, in CheckForIVReuse 
llvm-svn: 35197
 2007-03-20 00:47:50 +00:00
Dale Johannesen 8447d34903 fix obvious comment bug 
llvm-svn: 35196
 2007-03-20 00:30:56 +00:00
Chris Lattner af867a3937 Fix a nasty memory leak, caused by my revamp of the value symbol table. 
llvm-svn: 35195
 2007-03-20 00:18:10 +00:00
Reid Spencer 6682721316 Make isOneBitSet faster by using APInt::isPowerOf2. Thanks Chris. 
llvm-svn: 35194
 2007-03-20 00:16:52 +00:00
Reid Spencer cc031a43aa APIntify the isHighOnes utility function. 
llvm-svn: 35190
 2007-03-19 21:29:50 +00:00
Reid Spencer b1ec2e8ec7 Fix coding standards violation. 
llvm-svn: 35189
 2007-03-19 21:19:02 +00:00
Reid Spencer ef599b0786 Implement isMaxValueMinusOne in terms of APInt instead of uint64_t. 
Patch by Sheng Zhou.

llvm-svn: 35188
 2007-03-19 21:10:28 +00:00
Reid Spencer 3b93db72b4 Implement isMinValuePlusOne using facilities of APInt instead of uint64_t 
Patch by Zhou Sheng.

llvm-svn: 35187
 2007-03-19 21:08:07 +00:00
Reid Spencer 129a86792d Implement isOneBitSet in terms of APInt::countPopulation. 
llvm-svn: 35186
 2007-03-19 21:04:43 +00:00
Reid Spencer 450434ed65 1. Use APInt::getSignBit to reduce clutter (patch by Sheng Zhou) 
2. Replace uses of the "isPositive" utility function with APInt::isPositive

llvm-svn: 35185
 2007-03-19 20:58:18 +00:00
Reid Spencer 03c31d5bb0 Remove a redundant clause in an if statement. 
Patch by Sheng Zhou.

llvm-svn: 35184
 2007-03-19 20:47:50 +00:00
Reid Spencer a7bed60ab3 Regenerate. 
llvm-svn: 35183
 2007-03-19 20:40:51 +00:00
Reid Spencer 363fd46199 Fix test/Assembler/2007-03-19-NegValue.ll by using the new "isSigned" 
parameter on ConstantInt::get to indicate the signedness of the intended
value.

llvm-svn: 35182
 2007-03-19 20:40:22 +00:00
Reid Spencer 362fb29d80 Allow ConstantInt::get(Ty, uint64_t) to interpret the 64-bit values as a 
negative number. This is needed to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35181
 2007-03-19 20:39:08 +00:00
Reid Spencer 6fae35acd3 Implement extension of sign bits for negative values in the uint64_t 
constructor. This helps to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35180
 2007-03-19 20:37:47 +00:00
Anton Korobeynikov 2946e07557 Fix mingw32 build 
llvm-svn: 35177
 2007-03-19 20:19:08 +00:00
Reid Spencer d0e8d382db Regenerate. 
llvm-svn: 35174
 2007-03-19 18:40:50 +00:00
Reid Spencer fe65ae88fe For PR1248: 
Eliminate support for type planes in numbered values. This simplifies the
data structures involved in managing forward definitions, etc. Instead of
requiring maps from type to value, we can now just use a vector of values.
These changes also required rewrites of some support functions such as
InsertValue, getBBVal, and ResolveDefinitions. Some other cosmetic changes
were made as well.

llvm-svn: 35173
 2007-03-19 18:39:36 +00:00
Reid Spencer 49bd921f08 Add and Operator== method to ValID so equality can be done properly for 
named or numbered ValIDs.

llvm-svn: 35172
 2007-03-19 18:34:28 +00:00
Reid Spencer 508167861d For PR1258: 
Radically simplify the SlotMachine. There is no need to keep Value planes
around any more. This change causes slot numbering to number all un-named,
non-void values starting at 0 and incrementing monotonically through the
function, regardless of type (including BasicBlocks). Getting slot numbers
is now a single lookup operation instead of a double lookup.

llvm-svn: 35171
 2007-03-19 18:32:53 +00:00
Chris Lattner 9c62db7c8c fix ScalarRepl/2007-03-19-CanonicalizeMemcpy.ll 
llvm-svn: 35169
 2007-03-19 18:25:57 +00:00
Evan Cheng 25d00d545d Remove -reduce-joining-phys-regs options. Make it on by default. 
llvm-svn: 35165
 2007-03-19 18:08:26 +00:00
Evan Cheng 9bb01c9f4f Fix naming inconsistencies. 
llvm-svn: 35163
 2007-03-19 07:48:02 +00:00
Evan Cheng ee2763f76f Special LDR instructions to load from non-pc-relative constantpools. These are 
rematerializable. Only used for constant generation for now.

llvm-svn: 35162
 2007-03-19 07:20:03 +00:00
Evan Cheng 5be3e09a30 Constant generation instructions are re-materializable. 
llvm-svn: 35161
 2007-03-19 07:09:02 +00:00
Evan Cheng 461c964d3d Added isReMaterializable. 
llvm-svn: 35160
 2007-03-19 06:22:07 +00:00
Evan Cheng c5e74f6404 Minor bug fix. 
llvm-svn: 35153
 2007-03-19 04:22:35 +00:00
Chris Lattner f01f87bc63 fix a warning 
llvm-svn: 35152
 2007-03-19 00:39:32 +00:00
Chris Lattner 877a3b424d implement the next chunk of SROA with memset/memcpy's of aggregates. This 
implements Transforms/ScalarRepl/memset-aggregate-byte-leader.ll

llvm-svn: 35150
 2007-03-19 00:16:43 +00:00
Nick Lewycky db204ecfbc Clean up this code and fix subtract miscompile. 
llvm-svn: 35146
 2007-03-18 22:58:46 +00:00