Commit Graph

340 Commits

Author SHA1 Message Date
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
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
Evan Cheng a67899195f Add ISD::isBuildVectorAllZeros predicate
llvm-svn: 27147
2006-03-26 09:50:58 +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 6b05290922 fix some bogus assertions: noop bitconverts are legal
llvm-svn: 27032
2006-03-24 02:20:47 +00:00
Chris Lattner ebac9a4adf Identify the INTRINSIC node
llvm-svn: 27020
2006-03-24 01:04:30 +00:00
Chris Lattner 2f4119a608 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 7c0cd8cafc add some trivial support for extractelement.
llvm-svn: 26928
2006-03-21 20:44:12 +00:00
Chris Lattner 672a42d731 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 00f0589bc0 Add very basic support for VECTOR_SHUFFLE
llvm-svn: 26880
2006-03-19 23:56:04 +00:00
Chris Lattner 9cdc5a0ce7 Add SCALAR_TO_VECTOR support
llvm-svn: 26866
2006-03-19 06:31:19 +00:00
Chris Lattner f4e1a53647 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 32206f54c6 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 98931bc381 add a couple enum values
llvm-svn: 26830
2006-03-17 19:53:59 +00:00
Nate Begeman bb01d4f272 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 4024c00ce7 add support for vector->vector casts
llvm-svn: 26788
2006-03-15 22:19:46 +00:00
Chris Lattner 80268aaeed Don't depend on the C99 copysign function, implement it ourselves.
llvm-svn: 26566
2006-03-05 23:57:58 +00:00
Jeff Cohen 55e2aac24b Fix VC++ compilation error.
llvm-svn: 26554
2006-03-05 21:43:37 +00:00
Chris Lattner 3bc4050217 Add some simple copysign folds
llvm-svn: 26543
2006-03-05 05:30:57 +00:00
Chris Lattner 5c1ba2ac08 Codegen copysign[f] into a FCOPYSIGN node
llvm-svn: 26542
2006-03-05 05:09:38 +00:00
Evan Cheng 23e75f5b49 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 6b08ae8497 Added isOperand(N): true if this is an operand of N
llvm-svn: 26501
2006-03-03 06:24:54 +00:00
Chris Lattner ad3c974a77 remove the read/write port/io intrinsics.
llvm-svn: 26479
2006-03-03 00:19:58 +00:00
Evan Cheng be85e89ec4 - Added VConstant as an abstract version of ConstantVec.
- All abstrct vector nodes must have # of elements and element type as their
first two operands.

llvm-svn: 26432
2006-03-01 00:51:13 +00:00
Evan Cheng 9f9662b86e Print ConstantPoolSDNode offset field.
llvm-svn: 26381
2006-02-26 08:36:57 +00:00
Evan Cheng ed169db8a5 Added an offset field to ConstantPoolSDNode.
llvm-svn: 26371
2006-02-25 09:54:52 +00:00
Nate Begeman abac61603f Add checks to make sure we don't create bogus extend nodes, and fix a bug
where we were doing exactly that which was causing failures on x86 and
alpha.

llvm-svn: 26284
2006-02-18 02:40:58 +00:00
Chris Lattner 375e1a71cc Fix a tricky issue in the SimplifyDemandedBits code where CombineTo wasn't
exactly the API we wanted to call into.  This fixes the crash on crafty last
night.

llvm-svn: 26269
2006-02-17 21:58:01 +00:00
Nate Begeman 5965bd19f8 kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255
2006-02-17 05:43:56 +00:00
Evan Cheng a1ef3ec5b5 Added SelectionDAG::InsertISelMapEntry(). This is used to workaround the gcc
problem where it inline the map insertion call too aggressively. Before this
change it was producing a frame size of 24k for Select_store(), now it's down
to 10k (by calling this method rather than calling the map insertion operator).

llvm-svn: 26094
2006-02-09 22:11:03 +00:00
Evan Cheng d3f1db93c1 More changes to reduce frame size.
Move all getTargetNode() out of SelectionDAG.h into SelectionDAG.cpp. This
prevents them from being inlined.
Change getTargetNode() so they return SDNode * instead of SDOperand to prevent
copying. It should also help compilation speed.

llvm-svn: 26083
2006-02-09 07:15:23 +00:00
Evan Cheng d37645c07d * Added SDNode::isOnlyUse().
* Fix hasNUsesOfValue(), it should be const.

llvm-svn: 25990
2006-02-05 06:29:23 +00:00
Chris Lattner 6091407783 remove dead fn
llvm-svn: 25935
2006-02-03 06:51:34 +00:00
Evan Cheng 02b5b9cdd6 Added case HANDLENODE to getOperationName().
llvm-svn: 25920
2006-02-03 01:33:01 +00:00
Evan Cheng 32be2dc0af Allow the specification of explicit alignments for constant pool entries.
llvm-svn: 25855
2006-01-31 22:23:14 +00:00
Chris Lattner ccb4476c87 Remove some special case hacks for CALLSEQ_*, using UpdateNodeOperands
instead.

llvm-svn: 25780
2006-01-29 07:58:15 +00:00
Chris Lattner 758b0ac54b Legalize ConstantFP into TargetConstantFP when the target allows. Implement
custom expansion of ConstantFP nodes.

llvm-svn: 25772
2006-01-29 06:26:56 +00:00
Chris Lattner 580b12ad34 add another method variant
llvm-svn: 25744
2006-01-28 10:09:25 +00:00
Chris Lattner f34156e8cb add some methods for updating nodes
llvm-svn: 25742
2006-01-28 09:32:45 +00:00
Chris Lattner fb16a62fba Remove the ISD::CALL and ISD::TAILCALL nodes
llvm-svn: 25721
2006-01-28 00:18:58 +00:00
Chris Lattner 476e67be14 initial selectiondag support for new INLINEASM node. Note that inline asms
with outputs or inputs are not supported yet. :)

llvm-svn: 25664
2006-01-26 22:24:51 +00:00
Nate Begeman e74795cd70 First part of bug 680:
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.

llvm-svn: 25606
2006-01-25 18:21:52 +00:00
Chris Lattner f9a1e3aadc Fix an infinite loop I caused by making sure to legalize the flag operand
of CALLSEQ_* nodes

llvm-svn: 25582
2006-01-24 05:48:21 +00:00
Andrew Lenharth 683352382e another couple selects
llvm-svn: 25551
2006-01-23 21:51:14 +00:00
Andrew Lenharth c28563874c another selectto
llvm-svn: 25548
2006-01-23 20:59:12 +00:00
Nate Begeman 1e1eb5ee6c Constant fold ctpop/ctlz/cttz, and a couple other small cleanups
llvm-svn: 25357
2006-01-16 08:07:10 +00:00
Chris Lattner 9597b33d58 add a missing node name
llvm-svn: 25327
2006-01-15 08:39:35 +00:00
Chris Lattner a5110e854d add stacksave/stackrestore nodes
llvm-svn: 25270
2006-01-13 02:39:42 +00:00
Evan Cheng 982493300e ignore register #0
llvm-svn: 25223
2006-01-11 22:13:48 +00:00
Nate Begeman 1b8121b227 Add bswap, rotl, and rotr nodes
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl

Targets should add rotl/rotr patterns if they have them

llvm-svn: 25222
2006-01-11 21:21:00 +00:00
Evan Cheng 53a1f57fc5 New getNode() variants.
llvm-svn: 25156
2006-01-09 18:29:18 +00:00
Jim Laskey 762e9ec06c Added initial support for DEBUG_LABEL allowing debug specific labels to be
inserted in the code.

llvm-svn: 25104
2006-01-05 01:25:28 +00:00
Nate Begeman 164db3a7eb Make sure to pass the offset into the new node, so that we don't silently
drop it on the floor.

llvm-svn: 25044
2005-12-30 00:10:38 +00:00
Chris Lattner efbbedbf4a Fold bitconv(bitconv(x)) -> x. We now compile this:
void foo(double);
void bar(double X) { foo(X); }

to this:

bar:
        save -96, %o6, %o6
        or %g0, %i0, %o0
        or %g0, %i1, %o1
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

bar:
        save -112, %o6, %o6
        st %i1, [%i6+-4]
        st %i0, [%i6+-8]
        ldd [%i6+-8], %f0
        std %f0, [%i6+-16]
        ld [%i6+-12], %o1
        ld [%i6+-16], %o0
        call foo
        nop
        restore %g0, %g0, %g0
        retl
        nop

on V8.

llvm-svn: 24981
2005-12-23 05:37:50 +00:00
Chris Lattner a187460552 constant fold bits_convert in getNode and in the dag combiner for fp<->int
conversions.  This allows V8 to compiles this:

void %test() {
        call float %test2( float 1.000000e+00, float 2.000000e+00, double 3.000000e+00, double* null )
        ret void
}

into:

test:
        save -96, %o6, %o6
        sethi 0, %o3
        sethi 1049088, %o2
        sethi 1048576, %o1
        sethi 1040384, %o0
        or %g0, %o3, %o4
        call test2
        nop
        restore %g0, %g0, %g0
        retl
        nop

instead of:

test:
        save -112, %o6, %o6
        sethi 0, %o4
        sethi 1049088, %l0
        st %o4, [%i6+-12]
        st %l0, [%i6+-16]
        ld [%i6+-12], %o3
        ld [%i6+-16], %o2
        sethi 1048576, %o1
        sethi 1040384, %o0
        call test2
        nop
        restore %g0, %g0, %g0
        retl
        nop

llvm-svn: 24980
2005-12-23 05:30:37 +00:00
Chris Lattner 36e663d6e1 add very simple support for the BIT_CONVERT node
llvm-svn: 24970
2005-12-23 00:16:34 +00:00
Chris Lattner 177d7af5d5 remove dead code
llvm-svn: 24965
2005-12-22 21:16:08 +00:00
Evan Cheng 6af02635a7 Added a hook to print out names of target specific DAG nodes.
llvm-svn: 24877
2005-12-20 06:22:03 +00:00
Evan Cheng 9fd9541367 Print out opcode number if it's an unknown target node.
llvm-svn: 24869
2005-12-19 23:11:49 +00:00
Chris Lattner 50b2d302d5 Fix a case where the DAG Combiner would accidentally CSE flag-producing nodes,
creating graphs that cannot be scheduled.

llvm-svn: 24866
2005-12-19 22:21:21 +00:00
Jim Laskey 7c462768ed Added source file/line correspondence for dwarf (PowerPC only at this point.)
llvm-svn: 24748
2005-12-16 22:45:29 +00:00
Evan Cheng dadc1057ac Added new getNode and getTargetNode variants for X86 stores.
llvm-svn: 24653
2005-12-10 00:37:58 +00:00
Nate Begeman 41b1cdc771 Teach the SelectionDAG ISel how to turn ConstantPacked values into
constant nodes with vector types.  Also teach the asm printer how to print
ConstantPacked constant pool entries.  This allows us to generate altivec
code such as the following, which adds a vector constantto a packed float.

LCPI1_0:  <4 x float> < float 0.0e+0, float 0.0e+0, float 0.0e+0, float 1.0e+0 >
        .space  4
        .space  4
        .space  4
        .long   1065353216      ; float 1
        .text
        .align  4
        .globl  _foo
_foo:
        lis r2, ha16(LCPI1_0)
        la r2, lo16(LCPI1_0)(r2)
        li r4, 0
        lvx v0, r4, r2
        lvx v1, r4, r3
        vaddfp v0, v1, v0
        stvx v0, r4, r3
        blr

For the llvm code:

void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = add <4 x float> %tmp1, < float 0.0, float 0.0, float 0.0, float 1.0 >
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

llvm-svn: 24616
2005-12-06 06:18:55 +00:00
Chris Lattner 0142afd6c1 Don't remove two operand, two result nodes from the binary ops map. These
should come from the arbitrary ops map.

This fixes Regression/CodeGen/PowerPC/2005-12-01-Crash.ll

llvm-svn: 24571
2005-12-01 23:14:50 +00:00
Chris Lattner 9d0d715e83 This is a bugfix for SelectNodeTo. In certain situations, we could be
selecting a node and use a mix of getTargetNode() and SelectNodeTo.  Because
SelectNodeTo didn't check the CSE maps for a preexisting node and didn't insert
its result into the CSE maps, we would sometimes miss a CSE opportunity.

This is extremely rare, but worth fixing for completeness.

llvm-svn: 24565
2005-12-01 18:00:57 +00:00
Chris Lattner be5dd5da19 Make SelectNodeTo return N
llvm-svn: 24548
2005-11-30 22:45:14 +00:00
Chris Lattner c174048430 CALLSEQ_START/END nodes don't get memoized, do not add them in when
replaceAllUses'ing.

llvm-svn: 24539
2005-11-30 18:20:52 +00:00
Evan Cheng 11d61613af Fixed a bug introduced by my last commit: TargetGlobalValues should key on
GlobalValue * and index pair. Update getGlobalAddress() for symmetry.

llvm-svn: 24524
2005-11-30 02:49:21 +00:00
Evan Cheng 0e0de2f3f0 Added an index field to GlobalAddressSDNode so it can represent X+12, etc.
llvm-svn: 24523
2005-11-30 02:04:11 +00:00
Chris Lattner 435b402e1f Add support for a new STRING and LOCATION node for line number support, patch
contributed by Daniel Berlin, with a few cleanups here and there by me.

llvm-svn: 24515
2005-11-29 06:21:05 +00:00
Nate Begeman d37c13154a Check in code to scalarize arbitrarily wide packed types for some simple
vector operations (load, add, sub, mul).

This allows us to codegen:
void %foo(<4 x float> * %a) {
entry:
  %tmp1 = load <4 x float> * %a;
  %tmp2 = add <4 x float> %tmp1, %tmp1
  store <4 x float> %tmp2, <4 x float> *%a
  ret void
}

on ppc as:
_foo:
        lfs f0, 12(r3)
        lfs f1, 8(r3)
        lfs f2, 4(r3)
        lfs f3, 0(r3)
        fadds f0, f0, f0
        fadds f1, f1, f1
        fadds f2, f2, f2
        fadds f3, f3, f3
        stfs f0, 12(r3)
        stfs f1, 8(r3)
        stfs f2, 4(r3)
        stfs f3, 0(r3)
        blr

llvm-svn: 24484
2005-11-22 18:16:00 +00:00
Chris Lattner f090f7eb0e Add some method variants, patch by Evan Cheng
llvm-svn: 24418
2005-11-19 01:44:53 +00:00
Nate Begeman b2e089c31b Teach LLVM how to scalarize packed types. Currently, this only works on
packed types with an element count of 1, although more generic support is
coming.  This allows LLVM to turn the following code:

void %foo(<1 x float> * %a) {
entry:
  %tmp1 = load <1 x float> * %a;
  %tmp2 = add <1 x float> %tmp1, %tmp1
  store <1 x float> %tmp2, <1 x float> *%a
  ret void
}

Into:

_foo:
        lfs f0, 0(r3)
        fadds f0, f0, f0
        stfs f0, 0(r3)
        blr

llvm-svn: 24416
2005-11-19 00:36:38 +00:00
Andrew Lenharth 01aa56397d continued readcyclecounter support
llvm-svn: 24300
2005-11-11 16:47:30 +00:00
Chris Lattner bf4f233214 Switch the allnodes list from a vector of pointers to an ilist of nodes.This eliminates the vector, allows constant time removal of a node froma graph, and makes iteration over the all nodes list stable when adding
nodes to the graph.

llvm-svn: 24263
2005-11-09 23:47:37 +00:00
Chris Lattner 88fa11c3d5 Change the ValueList array for each node to be shared instead of individuallyallocated. Further, in the common case where a node has a single value, justreference an element from a small array. This is a small compile-time win.
llvm-svn: 24251
2005-11-08 23:30:28 +00:00
Chris Lattner 7e4b5d33cb Switch the operandlist/valuelist from being vectors to being just an array.This saves 12 bytes from SDNode, but doesn't speed things up substantially
(our graphs apparently already fit within the cache on my g5).  In any case
this reduces memory usage.

llvm-svn: 24249
2005-11-08 22:07:03 +00:00
Chris Lattner aba48dd34c Clean up RemoveDeadNodes significantly, by eliminating the need for a temporary
set and eliminating the need to iterate whenever something is removed (which
can be really slow in some cases).  Thx to Jim for pointing out something silly
I was getting stuck on. :)

llvm-svn: 24241
2005-11-08 18:52:27 +00:00
Andrew Lenharth 4b3932aa89 add TargetExternalSymbol
llvm-svn: 23886
2005-10-23 03:40:17 +00:00
Nate Begeman 02b23c6065 Move some Legalize functionality over to the DAGCombiner where it belongs.
Kill some dead code.

llvm-svn: 23706
2005-10-13 03:11:28 +00:00
Chris Lattner 56e44a6da5 This function is now dead
llvm-svn: 23684
2005-10-10 16:49:22 +00:00
Chris Lattner bcfebebf22 Enable Nate's excellent DAG combiner work by default. This allows the
removal of a bunch of ad-hoc and crufty code from SelectionDAG.cpp.

llvm-svn: 23682
2005-10-10 16:47:10 +00:00
Chris Lattner 1d3dc00674 (X & Y) & C == 0 if either X&C or Y&C are zero
llvm-svn: 23678
2005-10-09 22:12:36 +00:00
Chris Lattner be4bbca0ba remove debugging code
llvm-svn: 23663
2005-10-07 15:31:26 +00:00
Chris Lattner fb12624a3f implement CodeGen/PowerPC/div-2.ll:test2-4 by propagating zero bits through
C-X's

llvm-svn: 23662
2005-10-07 15:30:32 +00:00
Chris Lattner b27a4147d3 fix indentation
llvm-svn: 23660
2005-10-07 06:37:02 +00:00
Chris Lattner 5bcd0dd811 Turn sdivs into udivs when we can prove the sign bits are clear. This
implements CodeGen/PowerPC/div-2.ll

llvm-svn: 23659
2005-10-07 06:10:46 +00:00
Nate Begeman 558beb3729 Let the combiner handle more cases
llvm-svn: 23641
2005-10-05 21:44:43 +00:00
Chris Lattner a49e16fefa implement visitBR_CC so that PowerPC/inverted-bool-compares.ll passes
with the dag combiner.  This speeds up espresso by 8%, reaching performance
parity with the dag-combiner-disabled llc.

llvm-svn: 23636
2005-10-05 06:47:48 +00:00
Chris Lattner b11d15637a fix some pastos
llvm-svn: 23635
2005-10-05 06:37:22 +00:00
Chris Lattner 06f1d0f73a Add a new HandleNode class, which is used to handle (haha) cases in the
dead node elim and dag combiner passes where the root is potentially updated.
This fixes a fixme in the dag combiner.

llvm-svn: 23634
2005-10-05 06:35:28 +00:00
Chris Lattner 6f3b577ee6 Add FP versions of the binary operators, keeping the int and fp worlds seperate.
Though I have done extensive testing, it is possible that this will break
things in configs I can't test.  Please let me know if this causes a problem
and I'll fix it ASAP.

llvm-svn: 23504
2005-09-28 22:28:18 +00:00
Chris Lattner 59a05bdde6 Turn (X^C1) == C2 into X == C1^C2 iff X&~C1 = 0 (and move a function)
This happens all the time on PPC for bool values, e.g. eliminating a xori
in inverted-bool-compares.ll.

This should be added to the dag combiner as well.

llvm-svn: 23403
2005-09-23 00:55:52 +00:00
Chris Lattner 331b311f7b Fix a problem duraid encountered on itanium where this folding:
select (x < y), 1, 0 -> (x < y) incorrectly: the setcc returns i1 but the
select returned i32.  Add the zero extend as needed.

llvm-svn: 23301
2005-09-09 23:00:07 +00:00
Chris Lattner 16e5cb87ba Fix a crash viewing dags that have target nodes in them
llvm-svn: 23300
2005-09-09 22:35:03 +00:00