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Commit Graph

2607 Commits

Author SHA1 Message Date
Jim Laskey
b93bc75add Foundation for call frame information.
llvm-svn: 27491
2006-04-07 16:34:46 +00:00
Evan Cheng
e5eefd369a 1. If both vector operands of a vector_shuffle are undef, turn it into an undef.
2. A shuffle mask element can also be an undef.

llvm-svn: 27472
2006-04-06 23:20:43 +00:00
Chris Lattner
fe2926cf46 Make a vector live across blocks have the correct Vec type. This fixes
CodeGen/X86/2006-04-04-CrossBlockCrash.ll

llvm-svn: 27436
2006-04-05 06:54:42 +00:00
Evan Cheng
abd8dc54c2 Exapnd a VECTOR_SHUFFLE to a BUILD_VECTOR if target asks for it to be expanded
or custom lowering fails.

llvm-svn: 27432
2006-04-05 06:07:11 +00:00
Chris Lattner
cad2bfa3d7 Do not create ZEXTLOAD's unless we are before legalize or the operation is
legal.

llvm-svn: 27402
2006-04-04 17:39:18 +00:00
Chris Lattner
136a27d0d0 * Add supprot for SCALAR_TO_VECTOR operations where the input needs to be
promoted/expanded (e.g. SCALAR_TO_VECTOR from i8/i16 on PPC).
* Add support for targets to request that VECTOR_SHUFFLE nodes be promoted
  to a canonical type, for example, we only want v16i8 shuffles on PPC.
* Move isShuffleLegal out of TLI into Legalize.
* Teach isShuffleLegal to allow shuffles that need to be promoted.

llvm-svn: 27399
2006-04-04 17:23:26 +00:00
Chris Lattner
85dc06c29e Constant fold bitconvert(undef)
llvm-svn: 27391
2006-04-04 01:02:22 +00:00
Chris Lattner
4601b86ad0 The stack alignment is now computed dynamically, just verify it is correct.
llvm-svn: 27380
2006-04-03 21:39:57 +00:00
Chris Lattner
264e4a438a Remove unused method
llvm-svn: 27379
2006-04-03 21:39:03 +00:00
Chris Lattner
d13dd8ef5c Add a missing check, this fixes UnitTests/Vector/sumarray.c
llvm-svn: 27375
2006-04-03 17:29:28 +00:00
Chris Lattner
d9902c3de0 Add a missing check, which broke a bunch of vector tests.
llvm-svn: 27374
2006-04-03 17:21:50 +00:00
Andrew Lenharth
b133e47444 back this out
llvm-svn: 27367
2006-04-03 03:16:50 +00:00
Andrew Lenharth
91c6f28ad6 This should be a win of every arch
llvm-svn: 27364
2006-04-02 21:42:45 +00:00
Chris Lattner
dbdc830c83 Add a little dag combine to compile this:
int %AreSecondAndThirdElementsBothNegative(<4 x float>* %in) {
entry:
        %tmp1 = load <4 x float>* %in           ; <<4 x float>> [#uses=1]
        %tmp = tail call int %llvm.ppc.altivec.vcmpgefp.p( int 1, <4 x float> < float 0x7FF8000000000000, float 0.000000e+00, float 0.000000e+00, float 0x7FF8000000000000 >, <4 x float> %tmp1 )           ; <int> [#uses=1]
        %tmp = seteq int %tmp, 0                ; <bool> [#uses=1]
        %tmp3 = cast bool %tmp to int           ; <int> [#uses=1]
        ret int %tmp3
}

into this:

_AreSecondAndThirdElementsBothNegative:
        mfspr r2, 256
        oris r4, r2, 49152
        mtspr 256, r4
        li r4, lo16(LCPI1_0)
        lis r5, ha16(LCPI1_0)
        lvx v0, 0, r3
        lvx v1, r5, r4
        vcmpgefp. v0, v1, v0
        mfcr r3, 2
        rlwinm r3, r3, 27, 31, 31
        mtspr 256, r2
        blr

instead of this:

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

llvm-svn: 27356
2006-04-02 06:11:11 +00:00
Chris Lattner
c76f9e8691 Implement promotion for EXTRACT_VECTOR_ELT, allowing v16i8 multiplies to work with PowerPC.
llvm-svn: 27349
2006-04-02 05:06:04 +00:00
Chris Lattner
f15063eadf Implement the Expand action for binary vector operations to break the binop
into elements and operate on each piece.  This allows generic vector integer
multiplies to work on PPC, though the generated code is horrible.

llvm-svn: 27347
2006-04-02 03:57:31 +00:00
Chris Lattner
389e309bfb Intrinsics that just load from memory can be treated like loads: they don't
have to serialize against each other.  This allows us to schedule lvx's
across each other, for example.

llvm-svn: 27346
2006-04-02 03:41:14 +00:00
Chris Lattner
104db817c8 Constant fold all of the vector binops. This allows us to compile this:
"vector unsigned char mergeLowHigh = (vector unsigned char)
( 8, 9, 10, 11, 16, 17, 18, 19, 12, 13, 14, 15, 20, 21, 22, 23 );
vector unsigned char mergeHighLow = vec_xor( mergeLowHigh, vec_splat_u8(8));"

aka:

void %test2(<16 x sbyte>* %P) {
  store <16 x sbyte> cast (<4 x int> xor (<4 x int> cast (<16 x ubyte> < ubyte 8, ubyte 9, ubyte 10, ubyte 11, ubyte 16, ubyte 17, ubyte 18, ubyte 19, ubyte 12, ubyte 13, ubyte 14, ubyte 15, ubyte 20, ubyte 21, ubyte 22, ubyte 23 > to <4 x int>), <4 x int> cast (<16 x sbyte> < sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8, sbyte 8 > to <4 x int>)) to <16 x sbyte>), <16 x sbyte> * %P
  ret void
}

into this:

_test2:
        mfspr r2, 256
        oris r4, r2, 32768
        mtspr 256, r4
        li r4, lo16(LCPI2_0)
        lis r5, ha16(LCPI2_0)
        lvx v0, r5, r4
        stvx v0, 0, r3
        mtspr 256, r2
        blr

instead of this:

_test2:
        mfspr r2, 256
        oris r4, r2, 49152
        mtspr 256, r4
        li r4, lo16(LCPI2_0)
        lis r5, ha16(LCPI2_0)
        vspltisb v0, 8
        lvx v1, r5, r4
        vxor v0, v1, v0
        stvx v0, 0, r3
        mtspr 256, r2
        blr

... which occurs here:
http://developer.apple.com/hardware/ve/calcspeed.html

llvm-svn: 27343
2006-04-02 03:25:57 +00:00
Chris Lattner
badebf1c9b Add a new -view-legalize-dags command line option
llvm-svn: 27342
2006-04-02 03:07:27 +00:00
Chris Lattner
52732a272f Implement constant folding of bit_convert of arbitrary constant vbuild_vector nodes.
llvm-svn: 27341
2006-04-02 02:53:43 +00:00
Chris Lattner
8a66373ad7 These entries already exist
llvm-svn: 27340
2006-04-02 02:51:27 +00:00
Chris Lattner
5eefd8e0b3 Add some missing node names
llvm-svn: 27339
2006-04-02 02:41:18 +00:00
Chris Lattner
13e8d5973c Prefer larger register classes over smaller ones when a register occurs in
multiple register classes.  This fixes PowerPC/2006-04-01-FloatDoubleExtend.ll

llvm-svn: 27334
2006-04-02 00:24:45 +00:00
Chris Lattner
b088cfc01a Delete identity shuffles, implementing CodeGen/Generic/vector-identity-shuffle.ll
llvm-svn: 27317
2006-03-31 22:16:43 +00:00
Chris Lattner
774bdd598c Do not endian swap split vector loads. This fixes UnitTests/Vector/sumarray-dbl on PPC.
Now all UnitTests/Vector/* tests pass on PPC.

llvm-svn: 27299
2006-03-31 18:22:37 +00:00
Chris Lattner
ffa44397a5 Do not endian swap the operands to a store if the operands came from a vector.
This fixes UnitTests/Vector/simple.c with altivec.

llvm-svn: 27298
2006-03-31 18:20:46 +00:00
Chris Lattner
0e7da656a7 Remove dead *extloads. This allows us to codegen vector.ll:test_extract_elt
to:

test_extract_elt:
        alloc r3 = ar.pfs,0,1,0,0
        adds r8 = 12, r32
        ;;
        ldfs f8 = [r8]
        mov ar.pfs = r3
        br.ret.sptk.many rp

instead of:

test_extract_elt:
        alloc r3 = ar.pfs,0,1,0,0
        adds r8 = 28, r32
        adds r9 = 24, r32
        adds r10 = 20, r32
        adds r11 = 16, r32
        ;;
        ldfs f6 = [r8]
        ;;
        ldfs f6 = [r9]
        adds r8 = 12, r32
        adds r9 = 8, r32
        adds r14 = 4, r32
        ;;
        ldfs f6 = [r10]
        ;;
        ldfs f6 = [r11]
        ldfs f8 = [r8]
        ;;
        ldfs f6 = [r9]
        ;;
        ldfs f6 = [r14]
        ;;
        ldfs f6 = [r32]
        mov ar.pfs = r3
        br.ret.sptk.many rp

llvm-svn: 27297
2006-03-31 18:10:41 +00:00
Chris Lattner
c3be332547 Delete dead loads in the dag. This allows us to compile
vector.ll:test_extract_elt2 into:

_test_extract_elt2:
        lfd f1, 32(r3)
        blr

instead of:

_test_extract_elt2:
        lfd f0, 56(r3)
        lfd f0, 48(r3)
        lfd f0, 40(r3)
        lfd f1, 32(r3)
        lfd f0, 24(r3)
        lfd f0, 16(r3)
        lfd f0, 8(r3)
        lfd f0, 0(r3)
        blr

llvm-svn: 27296
2006-03-31 18:06:18 +00:00
Chris Lattner
9d379a4ef3 Implement PromoteOp for VEXTRACT_VECTOR_ELT. Thsi fixes
Generic/vector.ll:test_extract_elt on non-sse X86 systems.

llvm-svn: 27294
2006-03-31 17:55:51 +00:00
Chris Lattner
e05a1ec544 Scalarized vector stores need not be legal, e.g. if the vector element type
needs to be promoted or expanded.  Relegalize the scalar store once created.
This fixes CodeGen/Generic/vector.ll:test1 on non-SSE x86 targets.

llvm-svn: 27293
2006-03-31 17:37:22 +00:00
Chris Lattner
f30369b9b1 Make sure to pass enough values to phi nodes when we are dealing with
decimated vectors.  This fixes UnitTests/Vector/sumarray-dbl.c

llvm-svn: 27280
2006-03-31 02:12:18 +00:00
Chris Lattner
82a0e17dd7 Significantly improve handling of vectors that are live across basic blocks,
handling cases where the vector elements need promotion, expansion, and when
the vector type itself needs to be decimated.

llvm-svn: 27278
2006-03-31 02:06:56 +00:00
Evan Cheng
873c48a51a Expand INSERT_VECTOR_ELT to store vec, sp; store elt, sp+k; vec = load sp;
llvm-svn: 27274
2006-03-31 01:27:51 +00:00
Chris Lattner
9a46d1605c Bug fixes: handle constantexpr insert/extract element operations
Handle constantpacked vectors with constantexpr elements.

This fixes CodeGen/Generic/vector-constantexpr.ll

llvm-svn: 27241
2006-03-29 00:11:43 +00:00
Chris Lattner
95a8c4fb11 When building a VVECTOR_SHUFFLE node from extract_element operations, make
sure to build it as SHUFFLE(X, undef, mask), not SHUFFLE(X, X, mask).

The later is not canonical form, and prevents the PPC splat pattern from
matching.  For a particular splat, we go from generating this:

	li r10, lo16(LCPI1_0)
	lis r11, ha16(LCPI1_0)
	lvx v3, r11, r10
	vperm v3, v2, v2, v3

to generating:

	vspltw v3, v2, 3

llvm-svn: 27236
2006-03-28 22:19:47 +00:00
Chris Lattner
017e8f1798 Canonicalize VECTOR_SHUFFLE(X, X, Y) -> VECTOR_SHUFFLE(X,undef,Y')
llvm-svn: 27235
2006-03-28 22:11:53 +00:00
Chris Lattner
a623f6f696 Turn a series of extract_element's feeding a build_vector into a
vector_shuffle node.  For this:

void test(__m128 *res, __m128 *A, __m128 *B) {
  *res = _mm_unpacklo_ps(*A, *B);
}

we now produce this code:

_test:
        movl 8(%esp), %eax
        movaps (%eax), %xmm0
        movl 12(%esp), %eax
        unpcklps (%eax), %xmm0
        movl 4(%esp), %eax
        movaps %xmm0, (%eax)
        ret

instead of this:

_test:
        subl $76, %esp
        movl 88(%esp), %eax
        movaps (%eax), %xmm0
        movaps %xmm0, (%esp)
        movaps %xmm0, 32(%esp)
        movss 4(%esp), %xmm0
        movss 32(%esp), %xmm1
        unpcklps %xmm0, %xmm1
        movl 84(%esp), %eax
        movaps (%eax), %xmm0
        movaps %xmm0, 16(%esp)
        movaps %xmm0, 48(%esp)
        movss 20(%esp), %xmm0
        movss 48(%esp), %xmm2
        unpcklps %xmm0, %xmm2
        unpcklps %xmm1, %xmm2
        movl 80(%esp), %eax
        movaps %xmm2, (%eax)
        addl $76, %esp
        ret

GCC produces this (with -fomit-frame-pointer):

_test:
        subl    $12, %esp
        movl    20(%esp), %eax
        movaps  (%eax), %xmm0
        movl    24(%esp), %eax
        unpcklps        (%eax), %xmm0
        movl    16(%esp), %eax
        movaps  %xmm0, (%eax)
        addl    $12, %esp
        ret

llvm-svn: 27233
2006-03-28 20:28:38 +00:00
Chris Lattner
c6e37432b5 Teach Legalize how to pack VVECTOR_SHUFFLE nodes into VECTOR_SHUFFLE nodes.
llvm-svn: 27232
2006-03-28 20:24:43 +00:00
Chris Lattner
5b8467460a new node
llvm-svn: 27231
2006-03-28 19:54:42 +00:00
Chris Lattner
cad173698d Don't crash on X^X if X is a vector. Instead, produce a vector of zeros.
llvm-svn: 27229
2006-03-28 19:11:05 +00:00
Chris Lattner
6af8c19e4f Add an assertion
llvm-svn: 27228
2006-03-28 19:04:49 +00:00
Jim Laskey
4c2d4d1912 Refactor address attributes. Add base register to frame info.
llvm-svn: 27226
2006-03-28 14:58:32 +00:00
Jim Laskey
a9e74309d9 More bulletproofing of llvm.dbg.declare.
llvm-svn: 27224
2006-03-28 13:45:20 +00:00
Jim Laskey
702240530d More bulletproofing of DebugInfoDesc verify.
llvm-svn: 27203
2006-03-28 01:30:18 +00:00
Chris Lattner
d5da541d42 Tblgen doesn't like multiple SDNode<> definitions that map to the sameenum value. Split them into separate enums.
llvm-svn: 27201
2006-03-28 00:40:33 +00:00
Jim Laskey
d2619bb575 Reactivate llvm.dbg.declare.
llvm-svn: 27192
2006-03-27 23:31:10 +00:00
Chris Lattner
0b857e9ffc Disable dbg_declare, it currently breaks the CFE build
llvm-svn: 27182
2006-03-27 21:36:03 +00:00
Chris Lattner
d3368b1114 Fix legalization of intrinsics with chain and result values
llvm-svn: 27181
2006-03-27 20:28:29 +00:00
Chris Lattner
f5de9e0ab3 Unbreak the build on non-apple compilers :-(
llvm-svn: 27173
2006-03-27 16:10:59 +00:00
Evan Cheng
11d2b6217d Try again
llvm-svn: 27171
2006-03-27 08:10:26 +00:00
Evan Cheng
73d281ae4c Incorrect check for FP all one's
llvm-svn: 27169
2006-03-27 07:26:17 +00:00
Evan Cheng
4667bd17cb Change isBuildVectorAllOnesInteger to isBuildVectorAllOnes. Also check for
floating point cases.

llvm-svn: 27165
2006-03-27 06:58:47 +00:00
Chris Lattner
c508c91acb Instead of printing "INTRINSIC" on intrinsic node, print the intrinsic name.
llvm-svn: 27164
2006-03-27 06:45:25 +00:00
Jim Laskey
c195040bcf Pass llvm/test/Regression/CodeGen/Generic/debug-info.ll.
llvm-svn: 27158
2006-03-27 01:51:47 +00:00
Nate Begeman
3d518334b9 SelectionDAGISel can now natively handle Switch instructions, in the same
manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.

llvm-svn: 27156
2006-03-27 01:32:24 +00:00
Jim Laskey
fb55c2c6a7 Bullet proof against undefined args produced by upgrading ols-style debug info.
llvm-svn: 27155
2006-03-26 22:46:27 +00:00
Jim Laskey
278ca1e735 How to be dumb on $5/day. Need a tri-state to track valid debug descriptors.
llvm-svn: 27154
2006-03-26 22:45:20 +00:00
Evan Cheng
ef3b33b847 Add ISD::isBuildVectorAllZeros predicate
llvm-svn: 27147
2006-03-26 09:50:58 +00:00
Chris Lattner
aef813a8cf Allow targets to custom lower their own intrinsics if desired.
llvm-svn: 27146
2006-03-26 09:12:51 +00:00
Chris Lattner
8b6f0daaae Add some comments.
llvm-svn: 27133
2006-03-25 23:00:56 +00:00
Chris Lattner
f9c8e9646d Fix a bug in ISD::isBuildVectorAllOnesInteger that caused it to always return
false

llvm-svn: 27131
2006-03-25 22:59:28 +00:00
Chris Lattner
d89668e503 Implement the ISD::isBuildVectorAllOnesInteger predicate
llvm-svn: 27130
2006-03-25 22:57:01 +00:00
Chris Lattner
62185c0496 Don't call SimplifyDemandedBits on vectors
llvm-svn: 27128
2006-03-25 22:19:00 +00:00
Chris Lattner
1e4694ed84 fix inverted conditional
llvm-svn: 27089
2006-03-24 22:49:42 +00:00
Jim Laskey
a39264632c Hack no more.
llvm-svn: 27079
2006-03-24 21:10:36 +00:00
Evan Cheng
ff1db97bca Only to vector shuffle for {x,x,y,y} cases when SCALAR_TO_VECTOR is free.
llvm-svn: 27071
2006-03-24 18:45:20 +00:00
Jim Laskey
0d63725a26 Rename for truth in advertising.
llvm-svn: 27063
2006-03-24 09:50:27 +00:00
Chris Lattner
62b04677c0 prefer to generate constant pool loads over splats. This prevents us from
using a splat for {1.0,1.0,1.0,1.0}

llvm-svn: 27055
2006-03-24 07:29:17 +00:00
Chris Lattner
b2b32e9283 fix spello
llvm-svn: 27053
2006-03-24 07:15:07 +00:00
Chris Lattner
f7ceb5fdd4 legalize vbit_convert nodes whose result is a legal type.
Legalize intrinsic nodes.

llvm-svn: 27036
2006-03-24 02:26:29 +00:00
Chris Lattner
041588d953 Lower target intrinsics into an INTRINSIC node
llvm-svn: 27035
2006-03-24 02:22:33 +00:00
Chris Lattner
3c7f31ad32 fix some bogus assertions: noop bitconverts are legal
llvm-svn: 27032
2006-03-24 02:20:47 +00:00
Evan Cheng
a54a9fbe05 Lower BUILD_VECTOR to VECTOR_SHUFFLE if there are two distinct nodes (and if
the target can handle it). Issue two SCALAR_TO_VECTOR ops followed by a
VECTOR_SHUFFLE to select from the two vectors.

llvm-svn: 27023
2006-03-24 01:17:21 +00:00
Chris Lattner
c5c9034e7f Identify the INTRINSIC node
llvm-svn: 27020
2006-03-24 01:04:30 +00:00
Jim Laskey
27e9f1bfa5 Unneeded forward.
llvm-svn: 27004
2006-03-23 23:05:52 +00:00
Jim Laskey
4ab13dc9be Make sure types are allocated in the scope of their use.
llvm-svn: 27002
2006-03-23 23:02:34 +00:00
Chris Lattner
175ac8ea20 add support for splitting casts. This implements
CodeGen/Generic/vector.ll:test_cast_2.

llvm-svn: 26999
2006-03-23 21:16:34 +00:00
Jim Laskey
867301543c Generate local variable and scope information and equivalent dwarf forms.
llvm-svn: 26989
2006-03-23 18:07:55 +00:00
Jim Laskey
b0ebfecdbf Handle new forms of llvm.dbg intrinsics.
llvm-svn: 26988
2006-03-23 18:06:46 +00:00
Chris Lattner
7db942251a simplify some code
llvm-svn: 26972
2006-03-23 05:29:04 +00:00
Chris Lattner
2ef03f3a43 Fix a typo
llvm-svn: 26965
2006-03-22 22:20:49 +00:00
Chris Lattner
7eaf8fa583 Implement simple support for vector casting. This can currently only handle
casts between legal vector types.

llvm-svn: 26961
2006-03-22 20:09:35 +00:00
Chris Lattner
c8696247e5 Endianness does not affect the order of vector fields. This fixes
SingleSource/UnitTests/Vector/build.c

llvm-svn: 26936
2006-03-22 01:46:54 +00:00
Chris Lattner
51b4436cce Enclose some variables in a scope to avoid error with some gcc versions
llvm-svn: 26934
2006-03-22 00:12:37 +00:00
Chris Lattner
12e4b95b6b add expand support for extractelement
llvm-svn: 26931
2006-03-21 21:02:03 +00:00
Chris Lattner
b90d9241c1 add some trivial support for extractelement.
llvm-svn: 26928
2006-03-21 20:44:12 +00:00
Chris Lattner
128089ae91 Add a hacky workaround for crashes due to vectors live across blocks.
Note that this code won't work for vectors that aren't legal on the
target.  Improvements coming.

llvm-svn: 26925
2006-03-21 19:20:37 +00:00
Chris Lattner
9fd8618130 If a target supports splatting with SHUFFLE_VECTOR, lower to it from BUILD_VECTOR(x,x,x,x)
llvm-svn: 26885
2006-03-20 01:52:29 +00:00
Chris Lattner
9fc969612c TargetData doesn't know the alignment of vectors :(
llvm-svn: 26884
2006-03-20 01:51:46 +00:00
Chris Lattner
529a9121d4 Add very basic support for VECTOR_SHUFFLE
llvm-svn: 26880
2006-03-19 23:56:04 +00:00
Chris Lattner
2144db7a6c Allow SCALAR_TO_VECTOR to be custom lowered.
llvm-svn: 26867
2006-03-19 06:47:21 +00:00
Chris Lattner
6bb71c2ebd Add SCALAR_TO_VECTOR support
llvm-svn: 26866
2006-03-19 06:31:19 +00:00
Chris Lattner
6c7486ff4d Don't bother storing undef elements of BUILD_VECTOR's
llvm-svn: 26858
2006-03-19 05:46:04 +00:00
Chris Lattner
52a132ab18 Implement expand of BUILD_VECTOR containing variable elements.
This implements CodeGen/Generic/vector.ll:test_variable_buildvector

llvm-svn: 26852
2006-03-19 04:18:56 +00:00
Chris Lattner
c9c081fc40 fold insertelement(buildvector) -> buildvector if the inserted element # is
a constant.  This implements test_constant_insert in CodeGen/Generic/vector.ll

llvm-svn: 26851
2006-03-19 01:27:56 +00:00
Chris Lattner
bf4033f63a implement basic support for INSERT_VECTOR_ELT.
llvm-svn: 26849
2006-03-19 01:17:20 +00:00
Chris Lattner
db243940bd Rename ConstantVec -> BUILD_VECTOR and VConstant -> VBUILD_VECTOR. Allow*BUILD_VECTOR to take variable inputs.
llvm-svn: 26847
2006-03-19 00:52:58 +00:00
Chris Lattner
855e3c878b implement vector.ll:test_undef
llvm-svn: 26845
2006-03-19 00:20:20 +00:00
Chris Lattner
367f9aef95 Fix the remaining bugs in the vector expansion rework I commited yesterday.
This fixes CodeGen/Generic/vector.ll

llvm-svn: 26843
2006-03-19 00:07:49 +00:00
Chris Lattner
35b6933508 Change the structure of lowering vector stuff. Note: This breaks some
things.

llvm-svn: 26840
2006-03-18 01:44:44 +00:00
Chris Lattner
3358842eb5 add a couple enum values
llvm-svn: 26830
2006-03-17 19:53:59 +00:00
Nate Begeman
42736d46b2 Remove BRTWOWAY*
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
2006-03-17 01:40:33 +00:00
Chris Lattner
7e80a5a16b Fix a problem fully scalarizing values.
llvm-svn: 26811
2006-03-16 23:05:19 +00:00
Chris Lattner
413bb13b27 Add support for CopyFromReg from vector values. Note: this doesn't support
illegal vector types yet!

llvm-svn: 26799
2006-03-16 19:57:50 +00:00
Chris Lattner
34f2e70f60 Teach CreateRegForValue how to handle vector types.
llvm-svn: 26798
2006-03-16 19:51:18 +00:00
Chris Lattner
95577cb3cd add support for vector->vector casts
llvm-svn: 26788
2006-03-15 22:19:46 +00:00
Chris Lattner
7c8518a21d Add a note, this code should be moved to the dag combiner.
llvm-svn: 26787
2006-03-15 22:19:18 +00:00
Jim Laskey
f6494d753a Expand subprogram and added block descriptor.
llvm-svn: 26782
2006-03-15 19:09:58 +00:00
Jim Laskey
864fb2f799 1. Use null for serialized empty strings.
2. Allow for user defined debug descriptors.
3. Allow for user augmented fields on debug descriptors.

llvm-svn: 26760
2006-03-14 18:37:57 +00:00
Chris Lattner
3b4ceba4ff make sure dead token factor nodes are removed by the dag combiner.
llvm-svn: 26731
2006-03-13 18:37:30 +00:00
Jim Laskey
c741139c24 Handle the removal of the debug chain.
llvm-svn: 26729
2006-03-13 13:07:37 +00:00
Chris Lattner
3a3c8682b5 Fold X+Y -> X|Y when safe. This implements:
Regression/CodeGen/PowerPC/and_add.ll

a case that occurs with dynamic allocas of constant size.

llvm-svn: 26727
2006-03-13 06:51:27 +00:00
Chris Lattner
9d0ebb55a6 add a couple of missing folds
llvm-svn: 26724
2006-03-13 06:26:26 +00:00
Chris Lattner
3cb122bfa8 For targets with FABS/FNEG support, lower copysign to an integer load,
a select and FABS/FNEG.

This speeds up a trivial (aka stupid) copysign benchmark I wrote from 6.73s
to 2.64s, woo.

llvm-svn: 26723
2006-03-13 06:08:38 +00:00
Chris Lattner
a54a9d83c3 Don't advance the hazard recognizer when there are no hazards and no instructions
to be emitted.

Don't add one to the latency of a completed instruction if the latency of the
op is 0.

llvm-svn: 26718
2006-03-12 09:01:41 +00:00
Chris Lattner
aea53fc36f Chain operands aren't real uses: they don't require the full latency of the
predecessor to finish before they can start.

llvm-svn: 26717
2006-03-12 03:52:09 +00:00
Chris Lattner
7396b82585 As a pending queue data structure to keep track of instructions whose
operands have all issued, but whose results are not yet available.  This
allows us to compile:

int G;
int test(int A, int B, int* P) {
   return (G+A)*(B+1);
}

to:

_test:
        lis r2, ha16(L_G$non_lazy_ptr)
        addi r4, r4, 1
        lwz r2, lo16(L_G$non_lazy_ptr)(r2)
        lwz r2, 0(r2)
        add r2, r2, r3
        mullw r3, r2, r4
        blr

instead of this, which has a stall between the lis/lwz:

_test:
        lis r2, ha16(L_G$non_lazy_ptr)
        lwz r2, lo16(L_G$non_lazy_ptr)(r2)
        addi r4, r4, 1
        lwz r2, 0(r2)
        add r2, r2, r3
        mullw r3, r2, r4
        blr

llvm-svn: 26716
2006-03-12 00:38:57 +00:00
Chris Lattner
62eafde9c1 rename priorityqueue -> availablequeue. When a node is scheduled, remember
which cycle it lands on.

llvm-svn: 26714
2006-03-11 22:44:37 +00:00
Chris Lattner
04ada12cb7 Make CurrCycle a local var instead of an instance var
llvm-svn: 26713
2006-03-11 22:34:41 +00:00
Chris Lattner
6a9861953b Move some methods around so that BU specific code is together, TD specific code
is together, and direction independent code is together.

llvm-svn: 26712
2006-03-11 22:28:35 +00:00
Chris Lattner
40c02c01a5 merge preds/chainpreds -> preds set
merge succs/chainsuccs -> succs set

This has no functionality change, simplifies the code, and reduces the size
of sunits.

llvm-svn: 26711
2006-03-11 22:24:20 +00:00
Evan Cheng
57c206232d Added a parameter to control whether Constant::getStringValue() would chop
off the result string at the first null terminator.

llvm-svn: 26704
2006-03-10 23:52:03 +00:00
Chris Lattner
02e6c29ad2 scrape out bits of llvm-db
llvm-svn: 26701
2006-03-10 22:48:19 +00:00
Chris Lattner
0a64d261e0 Move simple-selector-specific types to the simple selector.
llvm-svn: 26693
2006-03-10 07:51:18 +00:00
Chris Lattner
2024573f47 Simplify the interface to the schedulers, to not pass the selected heuristicin.
llvm-svn: 26692
2006-03-10 07:49:12 +00:00
Chris Lattner
da5f77e3cf Move some simple-sched-specific instance vars to the simple scheduler.
llvm-svn: 26690
2006-03-10 07:42:02 +00:00
Chris Lattner
ec2c5aa0bb prune #includes
llvm-svn: 26689
2006-03-10 07:37:35 +00:00
Chris Lattner
808cc02983 move some simple scheduler methods into the simple scheduler
llvm-svn: 26688
2006-03-10 07:35:21 +00:00
Chris Lattner
89a5a946f5 Make EmitNode take a SDNode instead of a NodeInfo*
llvm-svn: 26687
2006-03-10 07:28:36 +00:00
Chris Lattner
3f870d581e Move the VRBase field from NodeInfo to being a separate, explicit, map.
llvm-svn: 26686
2006-03-10 07:25:12 +00:00
Chris Lattner
a316d82d2a no need to build groups anymore
llvm-svn: 26684
2006-03-10 07:15:58 +00:00
Chris Lattner
e23afcfd6d Create SUnits directly from the SelectionDAG.
llvm-svn: 26683
2006-03-10 07:13:32 +00:00
Chris Lattner
ed528a5652 Push PrepareNodeInfo/IdentifyGroups down the inheritance hierarchy
llvm-svn: 26682
2006-03-10 06:34:51 +00:00
Chris Lattner
920325db0a Teach the latency scheduler some new tricks. In particular, to break ties,
keep track of a sense of "mobility", i.e. how many other nodes scheduling one
node will free up.  For something like this:

float testadd(float *X, float *Y, float *Z, float *W, float *V) {
  return (*X+*Y)*(*Z+*W)+*V;
}

For example, this makes us schedule *X then *Y, not *X then *Z.  The former
allows us to issue the add, the later only lets us issue other loads.

This turns the above code from this:

_testadd:
        lfs f0, 0(r3)
        lfs f1, 0(r6)
        lfs f2, 0(r4)
        lfs f3, 0(r5)
        fadds f0, f0, f2
        fadds f1, f3, f1
        lfs f2, 0(r7)
        fmadds f1, f0, f1, f2
        blr

into this:

_testadd:
        lfs f0, 0(r6)
        lfs f1, 0(r5)
        fadds f0, f1, f0
        lfs f1, 0(r4)
        lfs f2, 0(r3)
        fadds f1, f2, f1
        lfs f2, 0(r7)
        fmadds f1, f1, f0, f2
        blr

llvm-svn: 26680
2006-03-10 05:51:05 +00:00
Chris Lattner
1bb3ae8dae add an aggregate method for reinserting scheduled nodes, add a callback for
priority impls that want to be notified when a node is scheduled

llvm-svn: 26678
2006-03-10 04:32:49 +00:00
Jeff Cohen
5002cf68b4 Fix VC++ build breakage.
llvm-svn: 26676
2006-03-10 03:57:45 +00:00
Chris Lattner
dc7268f6a3 remove dbg_declare, it's not used yet.
llvm-svn: 26659
2006-03-09 20:02:42 +00:00
Chris Lattner
d00d6b4f23 back out my previous hack
llvm-svn: 26650
2006-03-09 17:48:46 +00:00
Chris Lattner
4fe39d8f9e remove temporary option
llvm-svn: 26646
2006-03-09 17:31:22 +00:00
Chris Lattner
f6937476d0 temporary hack to get the build working again, apparently a header
commit was forgotten

llvm-svn: 26642
2006-03-09 17:11:08 +00:00
Jim Laskey
7fcf238500 Move bit field endianness to backend.
llvm-svn: 26639
2006-03-09 13:28:47 +00:00
Chris Lattner
f35a70d050 yes yes, enabled debug output is bad
llvm-svn: 26637
2006-03-09 07:39:25 +00:00
Chris Lattner
0020b50bac switch the t-d scheduler to use a really dumb and trivial critical path
latency priority function.

llvm-svn: 26636
2006-03-09 07:38:27 +00:00
Chris Lattner
074a604a1b Pull latency information for target instructions out of the latency tables. :)
Only enable this with -use-sched-latencies, I'll enable it by default with a
clean nightly tester run tonight.

PPC is the only target that provides latency info currently.

llvm-svn: 26634
2006-03-09 07:15:18 +00:00
Chris Lattner
34bfd7da1f don't copy all itinerary data
llvm-svn: 26633
2006-03-09 07:13:00 +00:00
Chris Lattner
b1f716a6d1 PriorityQueue is an instance var, use it.
llvm-svn: 26632
2006-03-09 06:48:37 +00:00
Chris Lattner
1d9c1edaa8 add some comments
llvm-svn: 26631
2006-03-09 06:37:29 +00:00
Chris Lattner
2dd7bcc95b Refactor the priority mechanism one step further: now that it is a separate
class, sever its implementation from the interface.  Now we can provide new
implementations of the same interface (priority computation) without touching
the scheduler itself.

llvm-svn: 26630
2006-03-09 06:35:14 +00:00
Jim Laskey
a1ad999bba Get rid of the multiple copies of getStringValue. Now a Constant:: method.
llvm-svn: 26616
2006-03-08 18:11:07 +00:00
Chris Lattner
133ec8c3f0 Split the priority function computation and priority queue management out
of the ScheduleDAGList class into a new SchedulingPriorityQueue class.

llvm-svn: 26613
2006-03-08 05:18:27 +00:00
Chris Lattner
46a80382ce switch from an explicitly managed list of SUnits to a simple vector of sunits
llvm-svn: 26612
2006-03-08 04:54:34 +00:00
Chris Lattner
427dbaccca Shrinkify some fields, fit to 80 columns
llvm-svn: 26611
2006-03-08 04:41:06 +00:00
Chris Lattner
c2fede6ffb revert the previous patch, didn't mean to check it in yet
llvm-svn: 26610
2006-03-08 04:39:05 +00:00
Chris Lattner
7965026ed9 remove "Slot", it is dead
llvm-svn: 26609
2006-03-08 04:37:58 +00:00
Chris Lattner
3f23d22d3f Change the interface for getting a target HazardRecognizer to be more clean.
llvm-svn: 26608
2006-03-08 04:25:59 +00:00
Jim Laskey
aae3375a2b libstdc++-v3 was failing to build. Needed to handle composite types with empty
members (running into a zero initializer.)

llvm-svn: 26607
2006-03-08 02:07:02 +00:00
Jim Laskey
91d5ce2531 Use "llvm.metadata" section for debug globals. Filter out these globals in the
asm printer.

llvm-svn: 26599
2006-03-07 22:00:35 +00:00
Jim Laskey
eec3faecde Switch to using a numeric id for anchors.
llvm-svn: 26598
2006-03-07 20:53:47 +00:00
Jim Laskey
da7873525e Bitfield support.
llvm-svn: 26593
2006-03-07 15:51:33 +00:00
Chris Lattner
ced780efee Fix some formatting, when looking for hazards, prefer target nodes over
things like copyfromreg.

llvm-svn: 26586
2006-03-07 05:40:43 +00:00
Chris Lattner
86375c060a update file comment
llvm-svn: 26573
2006-03-06 17:58:04 +00:00
Evan Cheng
2fad0ea044 Remove some code that doesn't make sense
llvm-svn: 26572
2006-03-06 07:31:44 +00:00
Evan Cheng
8fd9503fbd Remove SUnit::Priority1: it is re-calculated on demand as number of live
range to be generated.

llvm-svn: 26570
2006-03-06 06:08:54 +00:00
Chris Lattner
c6d1fbab70 Hoist the HazardRecognizer out of the ScheduleDAGList.cpp file to where
targets can implement them.  Make the top-down scheduler non-g5-specific.

Remove the old testing hazard recognizer.

llvm-svn: 26569
2006-03-06 00:22:00 +00:00
Chris Lattner
ca7ed30ee6 Comment fixes
llvm-svn: 26567
2006-03-05 23:59:20 +00:00
Chris Lattner
101ce8f304 Don't depend on the C99 copysign function, implement it ourselves.
llvm-svn: 26566
2006-03-05 23:57:58 +00:00
Chris Lattner
5c28fdcae8 When a hazard recognizer needs noops to be inserted, do so. This represents
noops as null pointers in the instruction sequence.

llvm-svn: 26564
2006-03-05 23:51:47 +00:00
Chris Lattner
0ee7522721 Implement G5HazardRecognizer as a trivial thing that wants 5 cycles between
copyfromreg nodes.  Clearly useful!

llvm-svn: 26559
2006-03-05 23:13:56 +00:00
Chris Lattner
ccda7ffffd Add basic hazard recognizer support. noop insertion isn't complete yet though.
llvm-svn: 26558
2006-03-05 22:45:01 +00:00
Jeff Cohen
578bf37e22 Fix VC++ compilation error.
llvm-svn: 26554
2006-03-05 21:43:37 +00:00
Chris Lattner
ef4bef419b Split the list scheduler into top-down and bottom-up pieces. The priority
function of the top-down scheduler are completely bogus currently, and
having (future) PPC specific in this file is also wrong, but this is a
small incremental step.

llvm-svn: 26552
2006-03-05 21:10:33 +00:00
Chris Lattner
49ccda9563 Move the available queue to being inside the ListSchedule method, since it
bounds its lifetime.

llvm-svn: 26550
2006-03-05 20:21:55 +00:00
Chris Lattner
f2bed5f46e Reinstate this now that the offending opposite xform has been removed.
llvm-svn: 26548
2006-03-05 19:53:55 +00:00
Chris Lattner
93ad7177b4 print arbitrary constant pool entries
llvm-svn: 26545
2006-03-05 09:38:03 +00:00
Evan Cheng
e0a6cf78f8 Back out fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2) for now.
It's causing an infinite loop compiling ldecod on x86 / Darwin.

llvm-svn: 26544
2006-03-05 07:30:16 +00:00
Chris Lattner
827e3f62b0 Add some simple copysign folds
llvm-svn: 26543
2006-03-05 05:30:57 +00:00
Chris Lattner
4b4b3e6cbb Codegen copysign[f] into a FCOPYSIGN node
llvm-svn: 26542
2006-03-05 05:09:38 +00:00
Chris Lattner
cd57ff4fb6 fold (mul (add x, c1), c2) -> (add (mul x, c2), c1*c2)
fold (shl (add x, c1), c2) -> (add (shl x, c2), c1<<c2)

This allows us to compile CodeGen/PowerPC/addi-reassoc.ll into:

_test1:
        slwi r2, r4, 4
        add r2, r2, r3
        lwz r3, 36(r2)
        blr
_test2:
        mulli r2, r4, 5
        add r2, r2, r3
        lbz r2, 11(r2)
        extsb r3, r2
        blr

instead of:

_test1:
        addi r2, r4, 2
        slwi r2, r2, 4
        add r2, r3, r2
        lwz r3, 4(r2)
        blr
_test2:
        addi r2, r4, 2
        mulli r2, r2, 5
        add r2, r3, r2
        lbz r2, 1(r2)
        extsb r3, r2
        blr

llvm-svn: 26535
2006-03-04 23:33:26 +00:00
Jim Laskey
dc6f528739 Added support for dwarf block data entries.
llvm-svn: 26509
2006-03-03 21:00:14 +00:00
Jim Laskey
f915b6b08b Adding basic structure support.
llvm-svn: 26505
2006-03-03 15:06:57 +00:00
Evan Cheng
4afe769361 Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
llvm-svn: 26504
2006-03-03 07:01:07 +00:00
Evan Cheng
4ddc3b2c54 SDOperand::isOperand should not be a forwarding. It must check *this against N's operands.
llvm-svn: 26502
2006-03-03 06:42:32 +00:00
Evan Cheng
183b913508 Added isOperand(N): true if this is an operand of N
llvm-svn: 26501
2006-03-03 06:24:54 +00:00
Evan Cheng
b91460b269 A bit more tweaking
llvm-svn: 26500
2006-03-03 06:23:43 +00:00
Jeff Cohen
ee1a26dc07 Fix VC++ compilation errors.
llvm-svn: 26498
2006-03-03 03:25:07 +00:00
Evan Cheng
7d66f13ccf Move #include "llvm/CodeGen/AsmPrinter.h" to top since it's the interface.
llvm-svn: 26493
2006-03-03 02:04:29 +00:00
Chris Lattner
999aa36a04 remove the read/write port/io intrinsics.
llvm-svn: 26479
2006-03-03 00:19:58 +00:00
Chris Lattner
ab22220755 Split memcpy/memset/memmove intrinsics into i32/i64 versions, resolving
PR709, and paving the way for future progress.

llvm-svn: 26476
2006-03-03 00:00:25 +00:00
Evan Cheng
71fa36ef12 - Fixed some priority calculation bugs that were causing bug 478. Among them:
a predecessor appearing more than once in the operand list was counted as
  multiple predecessor; priority1 should be updated during scheduling;
  CycleBound was updated after the node is inserted into priority queue; one
  of the tie breaking condition was flipped.
- Take into consideration of two address opcodes. If a predecessor is a def&use
  operand, it should have a higher priority.
- Scheduler should also favor floaters, i.e. nodes that do not have real
  predecessors such as MOV32ri.
- The scheduling fixes / tweaks fixed bug 478:
        .text
        .align  4
        .globl  _f
_f:
        movl 4(%esp), %eax
        movl 8(%esp), %ecx
        movl %eax, %edx
        imull %ecx, %edx
        imull %eax, %eax
        imull %ecx, %ecx
        addl %eax, %ecx
        leal (%ecx,%edx,2), %eax
        ret

  It is also a slight performance win (1% - 3%) for most tests.

llvm-svn: 26470
2006-03-02 21:38:29 +00:00
Jim Laskey
7ee6df939e Support for enumerations.
llvm-svn: 26466
2006-03-01 23:52:37 +00:00
Evan Cheng
e99e63bfc8 Don't print llvm constant in assmebly file. Assembler won't like comments that
span multiple lines.

llvm-svn: 26463
2006-03-01 22:18:09 +00:00
Chris Lattner
d45d3b68b0 Fix CodeGen/Generic/2006-03-01-dagcombineinfloop.ll, an infinite loop
in the dag combiner on 176.gcc on x86.

llvm-svn: 26459
2006-03-01 21:47:21 +00:00
Jim Laskey
c73a56236e Switch back to using actual dwarf tags. Simplifies code without loss to other
debug forms.

llvm-svn: 26455
2006-03-01 20:39:36 +00:00
Chris Lattner
5544c94289 Fix a typo evan noticed
llvm-svn: 26454
2006-03-01 19:55:35 +00:00
Jim Laskey
09c0bfcbaf Use context and not compile unit.
llvm-svn: 26453
2006-03-01 18:20:30 +00:00
Jim Laskey
d614a770a6 I guess I can handle large type sizes.
llvm-svn: 26452
2006-03-01 18:13:05 +00:00
Jim Laskey
08fa0d0d99 Basic array support.
llvm-svn: 26451
2006-03-01 17:53:02 +00:00
Chris Lattner
6434a21c21 Add support for target-specific dag combines
llvm-svn: 26443
2006-03-01 04:53:38 +00:00
Chris Lattner
f571b8c5dd Add a new AddToWorkList method, start using it
llvm-svn: 26441
2006-03-01 04:03:14 +00:00
Chris Lattner
7ba1c5e025 Pull shifts by a constant through multiplies (a form of reassociation),
implementing Regression/CodeGen/X86/mul-shift-reassoc.ll

llvm-svn: 26440
2006-03-01 03:44:24 +00:00