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3543 Commits

Author SHA1 Message Date
Chris Lattner
42a5fca47e 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
87f080949b 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
a9c59156be 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
0442a18758 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
ef598059f2 Add a new -view-legalize-dags command line option 
llvm-svn: 27342
 2006-04-02 03:07:27 +00:00
Chris Lattner
e4e64b6b85 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
1c22728787 These entries already exist 
llvm-svn: 27340
 2006-04-02 02:51:27 +00:00
Chris Lattner
1985e1cbb8 Add some missing node names 
llvm-svn: 27339
 2006-04-02 02:41:18 +00:00
Chris Lattner
bec582f4cd 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
39dcf1a9e2 Delete identity shuffles, implementing CodeGen/Generic/vector-identity-shuffle.ll 
llvm-svn: 27317
 2006-03-31 22:16:43 +00:00
Chris Lattner
d9e4daabd2 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
8d90f526d7 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
7e30af3887 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
2d8551c85b 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
6f42325dca 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
8e1fcab2bc 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
ba38035e21 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
5fe1f54c17 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
168e45b0b3 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
67271869a8 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
20e619fba3 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
a46dfe80c8 Canonicalize VECTOR_SHUFFLE(X, X, Y) -> VECTOR_SHUFFLE(X,undef,Y') 
llvm-svn: 27235
 2006-03-28 22:11:53 +00:00
Chris Lattner
c9992548fc 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
f6f94d3bce 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
8d57da2ffc new node 
llvm-svn: 27231
 2006-03-28 19:54:42 +00:00
Chris Lattner
b7163598f9 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
ffec47ebff Add an assertion 
llvm-svn: 27228
 2006-03-28 19:04:49 +00:00
Jim Laskey
dea0348853 Refactor address attributes. Add base register to frame info. 
llvm-svn: 27226
 2006-03-28 14:58:32 +00:00
Jim Laskey
67a636c587 More bulletproofing of llvm.dbg.declare. 
llvm-svn: 27224
 2006-03-28 13:45:20 +00:00
Jim Laskey
8374e9c4eb More bulletproofing of DebugInfoDesc verify. 
llvm-svn: 27203
 2006-03-28 01:30:18 +00:00
Chris Lattner
e55d171ccd 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
d387cc5cde Reactivate llvm.dbg.declare. 
llvm-svn: 27192
 2006-03-27 23:31:10 +00:00
Chris Lattner
5bb1d90afd Disable dbg_declare, it currently breaks the CFE build 
llvm-svn: 27182
 2006-03-27 21:36:03 +00:00
Chris Lattner
d5f94c9574 Fix legalization of intrinsics with chain and result values 
llvm-svn: 27181
 2006-03-27 20:28:29 +00:00
Chris Lattner
0e84f1e532 Unbreak the build on non-apple compilers :-( 
llvm-svn: 27173
 2006-03-27 16:10:59 +00:00
Evan Cheng
d09b05b0bc Try again 
llvm-svn: 27171
 2006-03-27 08:10:26 +00:00
Evan Cheng
64efb35c32 Incorrect check for FP all one's 
llvm-svn: 27169
 2006-03-27 07:26:17 +00:00
Evan Cheng
c70e33cd6e Change isBuildVectorAllOnesInteger to isBuildVectorAllOnes. Also check for 
floating point cases.

llvm-svn: 27165
 2006-03-27 06:58:47 +00:00
Chris Lattner
52fcad3a37 Instead of printing "INTRINSIC" on intrinsic node, print the intrinsic name. 
llvm-svn: 27164
 2006-03-27 06:45:25 +00:00
Jim Laskey
6e792f9ff8 Pass llvm/test/Regression/CodeGen/Generic/debug-info.ll. 
llvm-svn: 27158
 2006-03-27 01:51:47 +00:00
Nate Begeman
ed728c1291 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
7092888bcc 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
84c2f0a705 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
a67899195f Add ISD::isBuildVectorAllZeros predicate 
llvm-svn: 27147
 2006-03-26 09:50:58 +00:00
Chris Lattner
30ee72586d Allow targets to custom lower their own intrinsics if desired. 
llvm-svn: 27146
 2006-03-26 09:12:51 +00:00
Chris Lattner
b6e2d0027a Add some comments. 
llvm-svn: 27133
 2006-03-25 23:00:56 +00:00
Chris Lattner
f6e3b957b8 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
c2d2811a07 Implement the ISD::isBuildVectorAllOnesInteger predicate 
llvm-svn: 27130
 2006-03-25 22:57:01 +00:00
Chris Lattner
dc1eab5886 Don't call SimplifyDemandedBits on vectors 
llvm-svn: 27128
 2006-03-25 22:19:00 +00:00
Chris Lattner
313229c74b fix inverted conditional 
llvm-svn: 27089
 2006-03-24 22:49:42 +00:00