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2376 Commits

Author SHA1 Message Date
Chris Lattner
6fc205fc44 Implement InstCombine/cast.ll:test29 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28126 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-05 06:39:07 +00:00
Chris Lattner
e3158308e0 Fix Transforms/InstCombine/2006-05-04-DemandedBitCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28101 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-04 17:33:35 +00:00
Chris Lattner
b3674e4753 Add pass ID's for various passes, so they can be AddRequiredID. Patch by 
Domagoj Babic!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28048 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-05-02 04:24:36 +00:00
Chris Lattner
94046b4d10 Fix InstCombine/2006-04-28-ShiftShiftLongLong.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28019 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-28 22:21:41 +00:00
Chris Lattner
ae74f55552 Fix Transforms/Reassociate/2006-04-27-ReassociateVector.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28007 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-28 04:14:49 +00:00
Chris Lattner
d929f06f4d Add support for inserting undef into a vector. This implements 
Transforms/InstCombine/vec_insert_to_shuffle.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27997 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 21:14:21 +00:00
Chris Lattner
634c76c08c Fix some nondeterminstic behavior in the mem2reg pass that (in addition to 
nondeterminism being bad) could cause some trivial missed optimizations (dead
phi nodes being left around for later passes to clean up).

With this, llvm-gcc4 now bootstraps and correctly compares.  I don't know
why I never tried to do it before... :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27984 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-27 01:14:43 +00:00
Chris Lattner
df4f226cdc Fix Transforms/ScalarRepl/2006-04-20-PromoteCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27912 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 20:48:50 +00:00
Andrew Lenharth
7a31b975fb Make code match cvs commit message :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 15:41:37 +00:00
Andrew Lenharth
8117f9a40e If we can convert the return pointer type into an integer that IntPtrType 
can be converted to losslessly, we can continue the conversion to a direct call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27880 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 14:56:47 +00:00
Chris Lattner
fd6bdf0b0f Turn x86 unaligned load/store intrinsics into aligned load/store instructions 
if the pointer is known aligned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27781 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 22:26:56 +00:00
Chris Lattner
7f6cc0ccb5 Fix a bug in the 'shuffle(undef,x,mask) -> shuffle(x, undef,mask')' xform 
Make the insert/extract elt -> shuffle code more aggressive.

This fixes CodeGen/PowerPC/vec_shuffle.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27728 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-16 00:51:47 +00:00
Chris Lattner
706126dac1 Canonicalize shuffle(undef,x,mask) -> shuffle(x, undef,mask'). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27727 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-16 00:03:56 +00:00
Chris Lattner
efb47359ff significant cleanups to code that uses insert/extractelt heavily. This builds 
maximal shuffles out of them where possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27717 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-15 01:39:45 +00:00
Chris Lattner
de6df88529 Teach scalarrepl to promote unions of vectors and floats, producing 
insert/extractelement operations.  This implements
Transforms/ScalarRepl/vector_promote.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27710 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-14 21:42:41 +00:00
Andrew Lenharth
61e99c9db8 linear -> constant time 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27652 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-13 13:43:31 +00:00
Reid Spencer
ad2072643a Get rid of a signed/unsigned compare warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27625 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-12 19:28:15 +00:00
Chris Lattner
9fb9213083 Turn casts into getelementptr's when possible. This enables SROA to be more 
aggressive in some cases where LLVMGCC 4 is inserting casts for no reason.

This implements InstCombine/cast.ll:test27/28.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27620 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-12 18:09:35 +00:00
Chris Lattner
389a6f58f7 Implement vec_shuffle.ll:test3 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27573 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-10 23:06:36 +00:00
Chris Lattner
a844fc4cb0 Implement InstCombine/vec_shuffle.ll:test[12] 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27571 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-10 22:45:52 +00:00
Andrew Lenharth
3433141a3e Add a simple pass to make sure that all (non-library) calls to malloc and free 
are visible to analysis as intrinsics.  That is, make sure someone doesn't pass
free around by address in some struct (as happens in say 176.gcc).

This doesn't get rid of any indirect calls, just ensure calls to free and malloc
are always direct.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27560 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-10 19:26:09 +00:00
Chris Lattner
543abdf1d0 Add supprot for shufflevector 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27513 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-08 01:19:12 +00:00
Chris Lattner
8960766d45 Fix inlining of insert/extract element constantexprs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27478 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-07 04:41:03 +00:00
Chris Lattner
e2ed057562 Lower vperm(x,y, mask) -> shuffle(x,y,mask) if mask is constant. This allows 
us to compile oh-so-realistic stuff like this:

 vec_vperm(A, B, (vector unsigned char){14});

to:
        vspltb v0, v0, 14

instead of:

        vspltisb v0, 14
        vperm v0, v2, v1, v0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27452 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-06 19:19:17 +00:00
Chris Lattner
4132afb0d2 vector casts of casts are eliminable. Transform this: 
%tmp = cast <4 x uint> %tmp to <4 x int>                ; <<4 x int>> [#uses=1]
        %tmp = cast <4 x int> %tmp to <4 x float>               ; <<4 x float>> [#uses=1]

into:

        %tmp = cast <4 x uint> %tmp to <4 x float>              ; <<4 x float>> [#uses=1]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27355 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-02 05:43:13 +00:00
Chris Lattner
a1c3538537 Allow transforming this: 
%tmp = cast <4 x uint>* %testData to <4 x int>*         ; <<4 x int>*> [#uses=1]
        %tmp = load <4 x int>* %tmp             ; <<4 x int>> [#uses=1]

to this:

        %tmp = load <4 x uint>* %testData               ; <<4 x uint>> [#uses=1]
        %tmp = cast <4 x uint> %tmp to <4 x int>                ; <<4 x int>> [#uses=1]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27353 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-02 05:37:12 +00:00
Chris Lattner
82ed58f9c4 Turn altivec lvx/stvx intrinsics into loads and stores. This allows the 
elimination of one load from this:

int AreSecondAndThirdElementsBothNegative( vector float *in ) {
#define QNaN 0x7FC00000
const vector unsigned int testData = (vector unsigned int)( QNaN, 0, 0, QNaN );
vector float test = vec_ld( 0, (float*) &testData );
return ! vec_any_ge( test, *in );
}

Now generating:

_AreSecondAndThirdElementsBothNegative:
        mfspr r2, 256
        oris r4, r2, 49152
        mtspr 256, r4
        li r4, lo16(LCPI1_0)
        lis r5, ha16(LCPI1_0)
        addi r6, r1, -16
        lvx v0, r5, r4
        stvx v0, 0, r6
        lvx v1, 0, r3
        vcmpgefp. v0, v0, v1
        mfcr r3, 2
        rlwinm r3, r3, 27, 31, 31
        xori r3, r3, 1
        cntlzw r3, r3
        srwi r3, r3, 5
        mtspr 256, r2
        blr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27352 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-02 05:30:25 +00:00
Chris Lattner
7224f84c15 Adjust to change in Intrinsics.gen interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27344 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-02 03:35:01 +00:00
Chris Lattner
3805dea3fe add valuemapper support for inline asm 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27332 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-01 23:17:11 +00:00
Chris Lattner
ae1ab3989c Fix InstCombine/2006-04-01-InfLoop.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27330 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-01 22:05:01 +00:00
Chris Lattner
64daab56c2 Fold A^(B&A) -> (B&A)^A 
Fold (B&A)^A == ~B & A

This implements InstCombine/xor.ll:test2[56]


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27328 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-01 08:03:55 +00:00
Chris Lattner
6e6b0da303 If we can look through vector operations to find the scalar version of an 
extract_element'd value, do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27323 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-31 23:01:56 +00:00
Chris Lattner
1f13c88939 extractelement(undef,x) -> undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27300 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-31 18:25:14 +00:00
Chris Lattner
df084ff78b Fix Transforms/InstCombine/2006-03-30-ExtractElement.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27261 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-30 22:02:40 +00:00
Chris Lattner
49aaa6a8ee teach the inliner to work with packed constants 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27161 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-27 05:50:18 +00:00
Chris Lattner
98509ef3c7 Don't crash on packed logical ops 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27125 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-25 21:58:26 +00:00
Chris Lattner
98d9811db2 Fix spello 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27052 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-24 07:14:34 +00:00
Chris Lattner
0f862e50ae add the actual cost to the debug info 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27051 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-24 07:14:00 +00:00
Jim Laskey
4ca9757a39 Strip changes to llvm.dbg intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26993 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-23 18:11:33 +00:00
Jim Laskey
930ac0606c Can't combine anymore - we don't have a chain through llvm.dbg intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26992 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-23 18:10:42 +00:00
Chris Lattner
035c6a2356 silence a bogus gcc warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-22 17:27:24 +00:00
Chris Lattner
273f202890 Teach cee to propagate through switch statements. This implements 
Transforms/CorrelatedExprs/switch.ll

Patch contributed by Eric Kidd!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26872 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-19 19:37:24 +00:00
Evan Cheng
21495775e7 - Fixed a bogus if condition. 
- Added more debugging info.
- Allow reuse of IV of negative stride. e.g. -4 stride == 2 * iv of -2 stride.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26841 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-18 08:03:12 +00:00
Evan Cheng
4496a50deb Sort StrideOrder so we can process the smallest strides first. This allows 
for more IV reuses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26837 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-18 00:44:49 +00:00
Evan Cheng
eb8f9e2297 Allow users of iv / stride to be rewritten with expression that is a multiply 
of a smaller stride even if they have a common loop invariant expression part.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26828 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-17 19:52:23 +00:00
Evan Cheng
d1d6b5cce2 For each loop, keep track of all the IV expressions inserted indexed by 
stride. For a set of uses of the IV of a stride which is a multiple
of another stride, do not insert a new IV expression. Rather, reuse the
previous IV and rewrite the uses as uses of IV expression multiplied by
the factor.

e.g.
x = 0 ...; x ++
y = 0 ...; y += 4
then use of y can be rewritten as use of 4*x for x86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-16 21:53:05 +00:00
Chris Lattner
b2f6c0075c Teach the strip pass to strip type names in addition to value names. This 
is fallout from the type/value split in the symtab long long ago :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26785 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-15 19:22:41 +00:00
Chris Lattner
e9efecbf47 Implement a FIXME, recusively reassociating 
A*A*B + A*A*C   -->   A*(A*B+A*C)   -->   A*(A*(B+C))

This implements Reassociate/mul-factor3.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26757 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-14 16:04:29 +00:00
Chris Lattner
895b392269 extract some code into a method, no functionality change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26755 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-14 07:11:11 +00:00
Chris Lattner
22a66c41f3 Promote shifts by a constant to multiplies so that we can reassociate 
(x<<1)+(y<<1) -> (X+Y)<<1.  This implements
Transforms/Reassociate/shift-factor.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26753 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-03-14 06:55:18 +00:00