339 Commits

Author SHA1 Message Date
Chris Lattner
30ee72586d Allow targets to custom lower their own intrinsics if desired.
llvm-svn: 27146
2006-03-26 09:12:51 +00:00
Evan Cheng
68d9bf26c8 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
Chris Lattner
77e271cb4e 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
a4f6805a86 legalize vbit_convert nodes whose result is a legal type.
Legalize intrinsic nodes.

llvm-svn: 27036
2006-03-24 02:26:29 +00:00
Evan Cheng
1d2e995fc1 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
d7c4e7d255 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
Chris Lattner
9ea1b3f9fd simplify some code
llvm-svn: 26972
2006-03-23 05:29:04 +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
8fa445a89d 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
5be4352124 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
340a6b5c26 add expand support for extractelement
llvm-svn: 26931
2006-03-21 21:02:03 +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
21e68c8001 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
79fb91cc69 Allow SCALAR_TO_VECTOR to be custom lowered.
llvm-svn: 26867
2006-03-19 06:47:21 +00:00
Chris Lattner
9cdc5a0ce7 Add SCALAR_TO_VECTOR support
llvm-svn: 26866
2006-03-19 06:31:19 +00:00
Chris Lattner
eb5b2e705c Don't bother storing undef elements of BUILD_VECTOR's
llvm-svn: 26858
2006-03-19 05:46:04 +00:00
Chris Lattner
5d3ff12c8f 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
29b2301460 implement basic support for INSERT_VECTOR_ELT.
llvm-svn: 26849
2006-03-19 01:17:20 +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
c16b05e67d implement vector.ll:test_undef
llvm-svn: 26845
2006-03-19 00:20:20 +00:00
Chris Lattner
93640543a9 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
32206f54c6 Change the structure of lowering vector stuff. Note: This breaks some
things.

llvm-svn: 26840
2006-03-18 01:44:44 +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
cad70c3e46 Add a note, this code should be moved to the dag combiner.
llvm-svn: 26787
2006-03-15 22:19:18 +00:00
Chris Lattner
994d8e6bd4 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
3fe975b846 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
af5e26c980 remove "Slot", it is dead
llvm-svn: 26609
2006-03-08 04:37:58 +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
3bf916ddd9 Add more vector NodeTypes: VSDIV, VUDIV, VAND, VOR, and VXOR.
llvm-svn: 26504
2006-03-03 07:01:07 +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
b97aab4371 Vector ops lowering.
llvm-svn: 26436
2006-03-01 01:09:54 +00:00
Chris Lattner
486d1bc5ed Fix a problem on itanium with memset. The value to set has been promoted to
i64 before this code, so zero_ext doesn't work.

llvm-svn: 26290
2006-02-20 06:38:35 +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
Chris Lattner
9ec392b2aa Fix another miscompilation exposed by lencode, where we lowered i64->f32
conversions to __floatdidf instead of __floatdisf on targets that support
f32 but not i64 (e.g. sparc).

llvm-svn: 26254
2006-02-17 04:32:33 +00:00
Jim Laskey
2eea436192 Should not combine ISD::LOCATIONs until we have scheme to remove from
MachineDebugInfo tables.

llvm-svn: 26216
2006-02-15 19:34:44 +00:00
Chris Lattner
8e2ee7358f Fix a latent bug in the call sequence handling stuff. Some targets (e.g. x86)
create these nodes with flag results.  Remember that we legalized them.

llvm-svn: 26156
2006-02-14 00:55:02 +00:00
Chris Lattner
462505fc5f Completely rewrite libcall insertion by the legalizer, providing the
following handy-dandy properties:

1. it is always correct now
2. it is much faster than before
3. it is easier to understand

This implementation builds off of the recent simplifications of the
legalizer that made it single-pass instead of iterative.

This fixes JM/lencod, JM/ldecod, and
CodeGen/Generic/2006-02-12-InsertLibcall.ll (at least on PPC).

llvm-svn: 26144
2006-02-13 09:18:02 +00:00
Nate Begeman
01bd9d9911 *** empty log message ***
llvm-svn: 25879
2006-02-01 19:05:15 +00:00
Nate Begeman
7e7f439f85 Fix some of the stuff in the PPC README file, and clean up legalization
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.

llvm-svn: 25875
2006-02-01 07:19:44 +00:00
Evan Cheng
2443ab932d Allow custom lowering of fabs. I forgot to check in this change which
caused several test failures.

llvm-svn: 25852
2006-01-31 18:14:25 +00:00
Chris Lattner
e9721b2984 Only insert an AND when converting from BR_COND to BRCC if needed.
llvm-svn: 25832
2006-01-31 05:04:52 +00:00
Chris Lattner
f263a23735 Fix a bug in my legalizer reworking that caused the X86 backend to not get
a chance to custom legalize setcc, which broke a bunch of C++ Codes.
Testcase here: CodeGen/X86/2006-01-30-LongSetcc.ll

llvm-svn: 25821
2006-01-30 22:43:50 +00:00
Chris Lattner
d6f5ae4455 don't insert an and node if it isn't needed here, this can prevent folding
of lowered target nodes.

llvm-svn: 25804
2006-01-30 04:22:28 +00:00
Chris Lattner
4d1ea71a31 Fix RET of promoted values on targets that custom expand RET to a target node.
llvm-svn: 25794
2006-01-29 21:02:23 +00:00
Chris Lattner
2c748afd6c cleanups to the ValueTypeActions interface
llvm-svn: 25785
2006-01-29 08:42:06 +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
2f292789dc Allow custom expansion of ConstantVec nodes. PPC will use this in the future.
llvm-svn: 25774
2006-01-29 06:34:16 +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
678da98835 eliminate uses of SelectionDAG::getBR2Way_CC
llvm-svn: 25767
2006-01-29 06:00:45 +00:00