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Author SHA1 Message Date
Reid Spencer 9597684ba7 Remove traces of Burg utility now that its gone and not needed. 
llvm-svn: 27902
 2006-04-20 18:42:24 +00:00
Reid Spencer 06502b6135 Burg not needed any more now that SparcV9 is gone. 
llvm-svn: 27901
 2006-04-20 18:39:19 +00:00
Chris Lattner 3e5521799c remove some v9 specific code 
llvm-svn: 27900
 2006-04-20 18:33:11 +00:00
Chris Lattner dcc1f995eb This field no longer exists 
llvm-svn: 27899
 2006-04-20 18:32:41 +00:00
Chris Lattner 778509c844 Don't fill in fields that no longer exist. 
llvm-svn: 27898
 2006-04-20 18:32:22 +00:00
Chris Lattner f2a5922fa9 Remove a bunch of dead stuff, shrinkifying TargetInstrDescriptor significantly. 
llvm-svn: 27897
 2006-04-20 18:32:02 +00:00
Chris Lattner 7d7ed24b96 Remove some obsolete interfaces 
llvm-svn: 27896
 2006-04-20 18:17:21 +00:00
Chris Lattner 2a875285f7 Remove this obsolete file 
llvm-svn: 27895
 2006-04-20 18:16:45 +00:00
Chris Lattner 862755b95b Remove some of the obvious v9-specific cruft 
llvm-svn: 27894
 2006-04-20 18:09:13 +00:00
Chris Lattner a38c3580bd Remove some of the obvious V9-specific cruft 
llvm-svn: 27893
 2006-04-20 18:08:53 +00:00
Evan Cheng 73b12f2f53 Vector extract element test case. 
llvm-svn: 27892
 2006-04-20 17:59:30 +00:00
Chris Lattner d5737be0f0 Remove V9 jit support 
llvm-svn: 27891
 2006-04-20 17:52:00 +00:00
Evan Cheng aecd41384f Vector insert test case. 
llvm-svn: 27890
 2006-04-20 17:50:10 +00:00
Chris Lattner ec86eace63 allow this dir to get pruned 
llvm-svn: 27889
 2006-04-20 17:45:33 +00:00
Chris Lattner 1798687dba Remove this target's reg tests 
llvm-svn: 27888
 2006-04-20 17:44:51 +00:00
Chris Lattner 5197dfadf2 Fails with all sparcs 
llvm-svn: 27887
 2006-04-20 17:43:41 +00:00
Chris Lattner 7991e85b2e Remove V9 
llvm-svn: 27886
 2006-04-20 17:42:23 +00:00
Chris Lattner ac61195539 This target is no longer built. The ,v files now live in the reoptimizer. 
llvm-svn: 27885
 2006-04-20 17:15:44 +00:00
Chris Lattner 53f4499b22 Never link in sparcv9 
llvm-svn: 27884
 2006-04-20 17:07:46 +00:00
Chris Lattner 8fe3dbceb0 Never build SparcV9 
llvm-svn: 27883
 2006-04-20 17:01:19 +00:00
Chris Lattner d0a3a32eae remove a dead prototype 
llvm-svn: 27882
 2006-04-20 15:45:54 +00:00
Andrew Lenharth f89e630b2f Make code match cvs commit message :) 
llvm-svn: 27881
 2006-04-20 15:41:37 +00:00
Andrew Lenharth 61eae29ad6 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.

llvm-svn: 27880
 2006-04-20 14:56:47 +00:00
Andrew Lenharth b950dbea0b can we cast between pointers and IntPtrType 
llvm-svn: 27879
 2006-04-20 14:54:17 +00:00
Reid Spencer 8923c09997 Add a missing =back to eliminate error. 
llvm-svn: 27878
 2006-04-20 14:17:47 +00:00
Evan Cheng 3ee104c852 v16i8 splat with 2 punpcklbw and a single pshufd. 
llvm-svn: 27877
 2006-04-20 09:05:16 +00:00
Evan Cheng f2c5fe9139 Another shuffle test. For 4-wide shuffle, no more than 3 {p}shuf*. 
llvm-svn: 27876
 2006-04-20 09:01:54 +00:00
Evan Cheng 60f0b8998e - Added support to turn "vector clear elements", e.g. pand V, <-1, -1, 0, -1> 
to a vector shuffle.
- VECTOR_SHUFFLE lowering change in preparation for more efficient codegen
of vector shuffle with zero (or any splat) vector.

llvm-svn: 27875
 2006-04-20 08:58:49 +00:00
Evan Cheng a320abc494 Turn a VAND into a VECTOR_SHUFFLE is applicable. 
DAG combiner can turn a VAND V, <-1, 0, -1, -1>, i.e. vector clear elements,
into a vector shuffle with a zero vector. It only does so when TLI tells it
the xform is profitable.

llvm-svn: 27874
 2006-04-20 08:56:16 +00:00
Evan Cheng 8d6c229f8c Added a virtual method isVectorClearMaskLegal to TLI. It is similar to 
isShuffleMaskLegal, used to determine if it makes sense to turn a
"vector clear" (e.g. pand V, <0, -1, 0, -1> to a shuffle of the vector and
a zero vector.

llvm-svn: 27873
 2006-04-20 08:54:13 +00:00
Evan Cheng 2bd632a02a Added a test case for , e.g. xform pand <0, 0, -1, -1> to a shuffle. 
llvm-svn: 27872
 2006-04-20 08:51:03 +00:00
Evan Cheng 059676f77b Added a movhlps, movlhps test case. 
llvm-svn: 27871
 2006-04-20 08:47:47 +00:00
Chris Lattner 171db236e5 Don't hardcode in 1.5 for the website, just use 'CVS'. 
llvm-svn: 27870
 2006-04-20 06:24:16 +00:00
Chris Lattner a23665ee78 This is old, out of date, and isn't linked to by anything. 
llvm-svn: 27869
 2006-04-20 06:15:48 +00:00
Chris Lattner 0cd0065c58 Make sure that the new instructions selected have the right type. This fixes 
CodeGen/PowerPC/2006-04-19-vmaddfp-crash.ll

llvm-svn: 27868
 2006-04-20 05:58:10 +00:00
Chris Lattner 4ae41a3556 New testcase for a codegen crash 
llvm-svn: 27867
 2006-04-20 05:57:43 +00:00
Tanya Lattner cf46848098 Changing domain name 
llvm-svn: 27865
 2006-04-20 05:51:53 +00:00
Chris Lattner bc1b262725 Implement folding of a bunch of binops with undef 
llvm-svn: 27863
 2006-04-20 05:39:12 +00:00
Chris Lattner 499abb5695 Update llvmgcc4 tarball names 
llvm-svn: 27861
 2006-04-20 05:08:23 +00:00
Tanya Lattner 3687d08f8e Removed listing of llvm releases after 1.4, and said "1.4 and newer" 
llvm-svn: 27860
 2006-04-20 05:05:12 +00:00
Tanya Lattner 5a423b3c4f Made warning red. 
llvm-svn: 27859
 2006-04-20 04:57:19 +00:00
Tanya Lattner 011f7359d6 Document is out of date.. added warning and link to llvm-config. 
llvm-svn: 27858
 2006-04-20 04:55:50 +00:00
Tanya Lattner 1a96c7158c Fixed up comment on xfail for llvmgcc version. 
llvm-svn: 27857
 2006-04-20 04:47:55 +00:00
Tanya Lattner 79674968b6 Added note about being able to XFAIL based on llvmgcc version. 
llvm-svn: 27856
 2006-04-20 04:45:59 +00:00
Tanya Lattner 3962e5965a Removed cvs mirror comment 
llvm-svn: 27855
 2006-04-20 04:38:16 +00:00
Tanya Lattner fb76291234 Minor fixes for the release. 
llvm-svn: 27854
 2006-04-20 04:35:34 +00:00
Chris Lattner 6400606664 This has been fixed! Thanks Reid. 
llvm-svn: 27853
 2006-04-20 04:24:28 +00:00
Chris Lattner d05559828a Yeah that's right! 
llvm-svn: 27852
 2006-04-20 04:22:06 +00:00
Chris Lattner 70dfe24866 Fixes from Tanya 
llvm-svn: 27851
 2006-04-20 04:01:31 +00:00
Reid Spencer df65ba121b Add in missing #defines for _OpenBSD_ systems. 
llvm-svn: 27850
 2006-04-20 00:18:39 +00:00
Evan Cheng 15c264b753 Handle v2i64 BUILD_VECTOR custom lowering correctly. v2i64 is a legal type, 
but i64 is not. If possible, change a i64 op to a f64 (e.g. load, constant)
and then cast it back.

llvm-svn: 27849
 2006-04-20 00:11:39 +00:00
Reid Spencer 48b9203a40 Allow OpenBSD to be recognized as a UNIX platform. 
llvm-svn: 27848
 2006-04-19 23:47:16 +00:00
Evan Cheng 4a1b0d3292 isSplatMask() bug: first element can be an undef. 
llvm-svn: 27847
 2006-04-19 23:28:59 +00:00
Chris Lattner 73eb58e1a2 Simplify some code 
llvm-svn: 27846
 2006-04-19 23:17:50 +00:00
Evan Cheng a3caaee503 - Added support to do aribitrary 4 wide shuffle with no more than three 
instructions.
- Fixed a commute vector_shuff bug.

llvm-svn: 27845
 2006-04-19 22:48:17 +00:00
Evan Cheng 6d5297dac3 Prefer {p}unpack* and mov*dup over {p}shuf* as well. 
llvm-svn: 27844
 2006-04-19 21:15:24 +00:00
Evan Cheng 52df74000a Renamed AddedCost to AddedComplexity. 
llvm-svn: 27843
 2006-04-19 20:38:28 +00:00
Evan Cheng b416a25174 - Renamed AddedCost to AddedComplexity. 
- Added more movhlps and movlhps patterns.

llvm-svn: 27842
 2006-04-19 20:37:34 +00:00
Evan Cheng 9235d848b7 Rename AddedCost to AddedComplexity. 
llvm-svn: 27841
 2006-04-19 20:36:09 +00:00
Evan Cheng 7855e4d032 Commute vector_shuffle to match more movlhps, movlp{s|d} cases. 
llvm-svn: 27840
 2006-04-19 20:35:22 +00:00
Chris Lattner f2f4aedc6e Final piece to get relinked .o files buildable universal on Darwin. 
llvm-svn: 27839
 2006-04-19 18:45:29 +00:00
Chris Lattner 7d17a77d5e Regenerate 
llvm-svn: 27838
 2006-04-19 18:38:19 +00:00
Chris Lattner b3305fb203 When on darwin, compiler_flags need to be percolated down to the 'gcc -r' 
command line so that relinked .o files can be built universal.

llvm-svn: 27837
 2006-04-19 18:34:41 +00:00
Evan Cheng cc7abc6c38 More mov{h|l}p{d|s} patterns. 
llvm-svn: 27836
 2006-04-19 18:20:17 +00:00
Evan Cheng aeb09ccdd3 - More mov{h|l}ps patterns. 
- Increase cost (complexity) of patterns which match mov{h|l}ps ops. These
  are preferred over shufps in most cases.

llvm-svn: 27835
 2006-04-19 18:11:52 +00:00
Evan Cheng aa3325e925 Allow "let AddedCost = n in" to increase pattern complexity. 
llvm-svn: 27834
 2006-04-19 18:07:24 +00:00
Chris Lattner 7b96902d35 Alpha too! 
llvm-svn: 27833
 2006-04-19 17:20:48 +00:00
Chris Lattner 05bbec5020 add a note 
llvm-svn: 27832
 2006-04-19 16:22:38 +00:00
Andrew Lenharth 02f9df3b7b Another simple case type merge case to try 
llvm-svn: 27831
 2006-04-19 15:34:34 +00:00
Andrew Lenharth edf349aba6 deal with memchr 
llvm-svn: 27830
 2006-04-19 15:34:02 +00:00
Andrew Lenharth 7f2cee3d3e friendlier error message 
llvm-svn: 27829
 2006-04-19 15:33:35 +00:00
Chris Lattner a922a516b0 add a note 
llvm-svn: 27828
 2006-04-19 05:55:06 +00:00
Chris Lattner bfab82817a Add a note. 
llvm-svn: 27827
 2006-04-19 05:53:27 +00:00
Chris Lattner 263fc2a642 grammaro 
llvm-svn: 27826
 2006-04-19 04:21:57 +00:00
Chris Lattner cb2170fb37 Fix a bug owen noticed 
llvm-svn: 27825
 2006-04-19 04:21:16 +00:00
Chris Lattner c3e92b56a3 Change wording 
llvm-svn: 27824
 2006-04-19 04:12:01 +00:00
Chris Lattner e9e46a746d add a note 
llvm-svn: 27823
 2006-04-19 04:05:21 +00:00
Chris Lattner 0b7fd71e1c add some more notes 
llvm-svn: 27822
 2006-04-19 04:02:47 +00:00
Andrew Lenharth 7c8be502e9 stupid stuff 
llvm-svn: 27821
 2006-04-19 03:45:25 +00:00
Andrew Lenharth 2bdd6fe9ef fix printing call graphs 
llvm-svn: 27820
 2006-04-18 23:45:19 +00:00
Andrew Lenharth 3e642d012a I understand now. Shoot. 
llvm-svn: 27819
 2006-04-18 22:36:11 +00:00
Evan Cheng 3823aa1d0f - PEXTRW cannot take a memory location as its first source operand. 
- PINSRWrmi encoding bug.

llvm-svn: 27818
 2006-04-18 21:59:43 +00:00
Evan Cheng 43f4ef4ffb SHUFP{S|D}, PSHUF* encoding bugs. Left out the mask immediate operand. 
llvm-svn: 27817
 2006-04-18 21:56:36 +00:00
Evan Cheng a179ea631d Name change for clarity sake 
llvm-svn: 27816
 2006-04-18 21:55:35 +00:00
Evan Cheng 09e36ef710 Encoding bug: CMPPSrmi, CMPPDrmi dropped operand 2 (condtion immediate). 
llvm-svn: 27815
 2006-04-18 21:31:08 +00:00
Evan Cheng d799d680f4 Name change for clarity sake 
llvm-svn: 27814
 2006-04-18 21:29:50 +00:00
Evan Cheng 0ee281f37c Left a pattern out 
llvm-svn: 27813
 2006-04-18 21:29:08 +00:00
Andrew Lenharth f70cb84083 llvm.memc* improvements. helps PA a lot in some specmarks 
llvm-svn: 27812
 2006-04-18 20:59:52 +00:00
Andrew Lenharth 49e188d7f7 llvm.memc* improvements. helps PA a lot in some specmarks 
llvm-svn: 27811
 2006-04-18 19:54:11 +00:00
Chris Lattner 34c901b50e These are correctly encoded by the JIT. I checked :) 
llvm-svn: 27810
 2006-04-18 19:03:38 +00:00
Chris Lattner 197d762232 add a note 
llvm-svn: 27809
 2006-04-18 18:30:19 +00:00
Chris Lattner 518834c67e Fix a crash on: 
void foo2(vector float *A, vector float *B) {
  vector float C = (vector float)vec_cmpeq(*A, *B);
  if (!vec_any_eq(*A, *B))
    *B = (vector float){0,0,0,0};
  *A = C;
}

llvm-svn: 27808
 2006-04-18 18:28:22 +00:00
Evan Cheng e2d25a1a50 Fixed an encoding bug: movd from XMM to R32. 
llvm-svn: 27807
 2006-04-18 18:19:00 +00:00
Chris Lattner 1e174c87c3 pretty print node name 
llvm-svn: 27806
 2006-04-18 18:05:58 +00:00
Chris Lattner 9754d142a4 Implement an important entry from README_ALTIVEC: 
If an altivec predicate compare is used immediately by a branch, don't
use a (serializing) MFCR instruction to read the CR6 register, which requires
a compare to get it back to CR's.  Instead, just branch on CR6 directly. :)

For example, for:
void foo2(vector float *A, vector float *B) {
  if (!vec_any_eq(*A, *B))
    *B = (vector float){0,0,0,0};
}

We now generate:

_foo2:
        mfspr r2, 256
        oris r5, r2, 12288
        mtspr 256, r5
        lvx v2, 0, r4
        lvx v3, 0, r3
        vcmpeqfp. v2, v3, v2
        bne cr6, LBB1_2 ; UnifiedReturnBlock
LBB1_1: ; cond_true
        vxor v2, v2, v2
        stvx v2, 0, r4
        mtspr 256, r2
        blr
LBB1_2: ; UnifiedReturnBlock
        mtspr 256, r2
        blr

instead of:

_foo2:
        mfspr r2, 256
        oris r5, r2, 12288
        mtspr 256, r5
        lvx v2, 0, r4
        lvx v3, 0, r3
        vcmpeqfp. v2, v3, v2
        mfcr r3, 2
        rlwinm r3, r3, 27, 31, 31
        cmpwi cr0, r3, 0
        beq cr0, LBB1_2 ; UnifiedReturnBlock
LBB1_1: ; cond_true
        vxor v2, v2, v2
        stvx v2, 0, r4
        mtspr 256, r2
        blr
LBB1_2: ; UnifiedReturnBlock
        mtspr 256, r2
        blr

This implements CodeGen/PowerPC/vec_br_cmp.ll.

llvm-svn: 27804
 2006-04-18 17:59:36 +00:00
Chris Lattner 11a9ac51e8 new testcase 
llvm-svn: 27803
 2006-04-18 17:56:30 +00:00
Chris Lattner 68c16a201e move some stuff around, clean things up 
llvm-svn: 27802
 2006-04-18 17:52:36 +00:00
Chris Lattner bfc2c68386 Teach the codegen about instructions used for SSE spill code, allowing it 
to optimize cases where it has to spill a lot

llvm-svn: 27801
 2006-04-18 16:44:51 +00:00
Nate Begeman f776fc2c98 Fix a copy & paste error from long ago. 
llvm-svn: 27800
 2006-04-18 16:03:18 +00:00
Chris Lattner 89e761c19d Add some more notes, many still missing 
llvm-svn: 27799
 2006-04-18 06:32:08 +00:00
Reid Spencer b687ce80cd Have the AutoRegen.sh script prompt the user for the LLVM src and obj 
directories if it can't find them. Then, replace those values into the
configure.ac script and pass them to the LLVM_CONFIG_PROJECT so that the
values become the default for llvm_src and llvm_obj variables. In this way
the user is required to input this exactly once, and the scripts take it
from there.

llvm-svn: 27798
 2006-04-18 06:27:47 +00:00
Reid Spencer c81081ab5e Make it possible to default the llvm_src and llvm_obj variables based on 
the arguments to the macro. This better supports the AutoRegen.sh script
in projects/sample/autoconf.

llvm-svn: 27797
 2006-04-18 06:25:37 +00:00
Chris Lattner 9f87173df3 add a bunch of stuff, pieces still missing 
llvm-svn: 27796
 2006-04-18 06:18:36 +00:00
Chris Lattner 9232c8c1c5 Add a warning. 
llvm-svn: 27795
 2006-04-18 05:31:20 +00:00
Chris Lattner 3af67456dd Add a warning 
llvm-svn: 27794
 2006-04-18 05:26:10 +00:00
Chris Lattner 96d50487c9 Use vmladduhm to do v8i16 multiplies which is faster and simpler than doing 
even/odd halves.  Thanks to Nate telling me what's what.

llvm-svn: 27793
 2006-04-18 04:28:57 +00:00
Chris Lattner d6d82aa889 Implement v16i8 multiply with this code: 
vmuloub v5, v3, v2
        vmuleub v2, v3, v2
        vperm v2, v2, v5, v4

This implements CodeGen/PowerPC/vec_mul.ll.  With this, v16i8 multiplies are
6.79x faster than before.

Overall, UnitTests/Vector/multiplies.c is now 2.45x faster with LLVM than with
GCC.

Remove the 'integer multiplies' todo from the README file.

llvm-svn: 27792
 2006-04-18 03:57:35 +00:00
Chris Lattner 48786e4887 Add tests for v8i16 and v16i8 
llvm-svn: 27791
 2006-04-18 03:54:50 +00:00
Evan Cheng 4d36a36900 Correct comments 
llvm-svn: 27790
 2006-04-18 03:45:01 +00:00
Chris Lattner 7e439874cb Lower v8i16 multiply into this code: 
li r5, lo16(LCPI1_0)
        lis r6, ha16(LCPI1_0)
        lvx v4, r6, r5
        vmulouh v5, v3, v2
        vmuleuh v2, v3, v2
        vperm v2, v2, v5, v4

where v4 is:
LCPI1_0:                                        ;  <16 x ubyte>
        .byte   2
        .byte   3
        .byte   18
        .byte   19
        .byte   6
        .byte   7
        .byte   22
        .byte   23
        .byte   10
        .byte   11
        .byte   26
        .byte   27
        .byte   14
        .byte   15
        .byte   30
        .byte   31

This is 5.07x faster on the G5 (measured) than lowering to scalar code +
loads/stores.

llvm-svn: 27789
 2006-04-18 03:43:48 +00:00
Chris Lattner a2cae1bb10 Custom lower v4i32 multiplies into a cute sequence, instead of having legalize 
scalarize the sequence into 4 mullw's and a bunch of load/store traffic.

This speeds up v4i32 multiplies 4.1x (measured) on a G5.  This implements
PowerPC/vec_mul.ll

llvm-svn: 27788
 2006-04-18 03:24:30 +00:00
Chris Lattner 2dea154035 new testcase 
llvm-svn: 27787
 2006-04-18 03:22:16 +00:00
Evan Cheng 0ef233509b Another entry 
llvm-svn: 27786
 2006-04-18 01:22:57 +00:00
Chris Lattner 3db2056315 Fix a build failure on Vladimir's tester. 
llvm-svn: 27785
 2006-04-18 00:21:25 +00:00
Evan Cheng e008bd3d27 Another entry. 
llvm-svn: 27784
 2006-04-18 00:21:01 +00:00
Evan Cheng 5421206c4b Use movss to insert_vector_elt(v, s, 0). 
llvm-svn: 27782
 2006-04-17 22:45:49 +00:00
Chris Lattner 36dd7c98d1 Turn x86 unaligned load/store intrinsics into aligned load/store instructions 
if the pointer is known aligned.

llvm-svn: 27781
 2006-04-17 22:26:56 +00:00
Chris Lattner 916ae0775e Fix handling of calls in functions that use vectors. This fixes a crash on 
the code in GCC PR26546.

llvm-svn: 27780
 2006-04-17 22:10:08 +00:00
Evan Cheng 6e5e205841 Use two pinsrw to insert an element into v4i32 / v4f32 vector. 
llvm-svn: 27779
 2006-04-17 22:04:06 +00:00
Chris Lattner 63a5cdc423 remove done item 
llvm-svn: 27778
 2006-04-17 21:52:03 +00:00
Chris Lattner 6bd68ae81e Don't diddle VRSAVE if no registers need to be added/removed from it. This 
allows us to codegen functions as:

_test_rol:
        vspltisw v2, -12
        vrlw v2, v2, v2
        blr

instead of:

_test_rol:
        mfvrsave r2, 256
        mr r3, r2
        mtvrsave r3
        vspltisw v2, -12
        vrlw v2, v2, v2
        mtvrsave r2
        blr

Testcase here: CodeGen/PowerPC/vec_vrsave.ll

llvm-svn: 27777
 2006-04-17 21:48:13 +00:00
Chris Lattner efe2b3f2fc New testcase, shouldn't touch vrsave 
llvm-svn: 27776
 2006-04-17 21:48:03 +00:00
Chris Lattner bec79b4a59 Add a MachineInstr::eraseFromParent convenience method. 
llvm-svn: 27775
 2006-04-17 21:35:41 +00:00
Chris Lattner 9fcad09b1b Add some convenience methods. 
llvm-svn: 27774
 2006-04-17 21:35:08 +00:00
Evan Cheng 22c06f054b Encoding bug 
llvm-svn: 27773
 2006-04-17 21:33:57 +00:00
Chris Lattner 72d7c27069 Vectors that are known live-in and live-out are clearly already marked in 
the vrsave register for the caller.  This allows us to codegen a function as:

_test_rol:
        mfspr r2, 256
        mr r3, r2
        mtspr 256, r3
        vspltisw v2, -12
        vrlw v2, v2, v2
        mtspr 256, r2
        blr

instead of:

_test_rol:
        mfspr r2, 256
        oris r3, r2, 40960
        mtspr 256, r3
        vspltisw v0, -12
        vrlw v2, v0, v0
        mtspr 256, r2
        blr

llvm-svn: 27772
 2006-04-17 21:22:06 +00:00
Chris Lattner 14c4972b6d Prefer to allocate V2-V5 before V0,V1. This lets us generate code like this: 
vspltisw v2, -12
        vrlw v2, v2, v2

instead of:

        vspltisw v0, -12
        vrlw v2, v0, v0

when a function is returning a value.

llvm-svn: 27771
 2006-04-17 21:19:12 +00:00
Chris Lattner 6df094b4ab Move some knowledge about registers out of the code emitter into the register info. 
llvm-svn: 27770
 2006-04-17 21:07:20 +00:00
Chris Lattner 0f28d48da2 Use a small table instead of macros to do this conversion. 
llvm-svn: 27769
 2006-04-17 20:59:25 +00:00
Evan Cheng 5022b3426e Implement v8i16, v16i8 splat using unpckl + pshufd. 
llvm-svn: 27768
 2006-04-17 20:43:08 +00:00
Chris Lattner c070c621ac implement returns of a vector, testcase here: CodeGen/X86/vec_return.ll 
llvm-svn: 27767
 2006-04-17 20:32:50 +00:00
Chris Lattner e757ae6534 New testcase 
llvm-svn: 27766
 2006-04-17 20:32:27 +00:00
Chris Lattner 326870b40b Codegen insertelement with constant insertion points as scalar_to_vector 
and a shuffle.  For this:

void %test2(<4 x float>* %F, float %f) {
        %tmp = load <4 x float>* %F             ; <<4 x float>> [#uses=2]
        %tmp3 = add <4 x float> %tmp, %tmp              ; <<4 x float>> [#uses=1]
        %tmp2 = insertelement <4 x float> %tmp3, float %f, uint 2               ; <<4 x float>> [#uses=2]
        %tmp6 = add <4 x float> %tmp2, %tmp2            ; <<4 x float>> [#uses=1]
        store <4 x float> %tmp6, <4 x float>* %F
        ret void
}

we now get this on X86 (which will get better):

_test2:
        movl 4(%esp), %eax
        movaps (%eax), %xmm0
        addps %xmm0, %xmm0
        movaps %xmm0, %xmm1
        shufps $3, %xmm1, %xmm1
        movaps %xmm0, %xmm2
        shufps $1, %xmm2, %xmm2
        unpcklps %xmm1, %xmm2
        movss 8(%esp), %xmm1
        unpcklps %xmm1, %xmm0
        unpcklps %xmm2, %xmm0
        addps %xmm0, %xmm0
        movaps %xmm0, (%eax)
        ret

instead of:

_test2:
        subl $28, %esp
        movl 32(%esp), %eax
        movaps (%eax), %xmm0
        addps %xmm0, %xmm0
        movaps %xmm0, (%esp)
        movss 36(%esp), %xmm0
        movss %xmm0, 8(%esp)
        movaps (%esp), %xmm0
        addps %xmm0, %xmm0
        movaps %xmm0, (%eax)
        addl $28, %esp
        ret

llvm-svn: 27765
 2006-04-17 19:21:01 +00:00
Chris Lattner e54133cfba Make sure to check splats of every constant we can, handle splat(31) by 
being a bit more clever, add support for odd splats from -31 to -17.

llvm-svn: 27764
 2006-04-17 18:09:22 +00:00
Evan Cheng bf0d13c54f Incorrect foldMemoryOperand entries 
llvm-svn: 27763
 2006-04-17 18:06:12 +00:00
Evan Cheng 5112b5c544 Errors in patterns preventing load folding 
llvm-svn: 27762
 2006-04-17 18:05:01 +00:00
Jeff Cohen e3955a05e4 Add checks for __OpenBSD__. 
llvm-svn: 27761
 2006-04-17 17:55:41 +00:00
Chris Lattner 264c908e3a Teach the ppc backend to use rol and vsldoi to generate splatted constants. 
This implements vec_constants.ll:test_vsldoi and test_rol

llvm-svn: 27760
 2006-04-17 17:55:10 +00:00
Chris Lattner 8cdba16d5e Some more cases that can be generated with two instructions 
llvm-svn: 27759
 2006-04-17 17:54:18 +00:00
Chris Lattner 26fb8d9393 add a note 
llvm-svn: 27758
 2006-04-17 17:29:41 +00:00
Evan Cheng b3b41c4f3d FP SETOLT, SETOLT, SETUGE, SETUGT conditions were implemented incorrectly 
llvm-svn: 27755
 2006-04-17 07:24:10 +00:00
Chris Lattner 1b3806ace5 Make some code more general, adding support for constant formation of several 
new patterns.

llvm-svn: 27754
 2006-04-17 06:58:41 +00:00
Chris Lattner 9a3859b339 New testcases 
llvm-svn: 27753
 2006-04-17 06:58:16 +00:00
Chris Lattner f8dd76df5b Learn how to make odd splatted constants in range [17,29]. This implements 
PowerPC/vec_constants.ll:test_29.

llvm-svn: 27752
 2006-04-17 06:07:44 +00:00
Chris Lattner 02440a996b new testcase 
llvm-svn: 27751
 2006-04-17 06:06:50 +00:00
Chris Lattner 2a099c04c1 Pull some code out into a helper function. 
Effeciently codegen even splats in the range [-32,30].

This allows us to codegen <30,30,30,30> as:

        vspltisw v0, 15
        vadduwm v2, v0, v0

instead of as a cp load.

llvm-svn: 27750
 2006-04-17 06:00:21 +00:00
Chris Lattner 31b7d89e66 New testcase 
llvm-svn: 27749
 2006-04-17 05:58:22 +00:00
Chris Lattner 071ad01ceb Implement a TODO: for any shuffle that can be viewed as a v4[if]32 shuffle, 
if it can be implemented in 3 or fewer discrete altivec instructions, codegen
it as such.  This implements Regression/CodeGen/PowerPC/vec_perf_shuffle.ll

llvm-svn: 27748
 2006-04-17 05:28:54 +00:00
Chris Lattner 6e98b49b54 new testcase, these shuffles can be implemented with discrete instructions, 
and shouldn't be lowered to vperm.

llvm-svn: 27747
 2006-04-17 05:27:31 +00:00
Chris Lattner 85bfa3c2bc Regenerate with adjusted costs 
llvm-svn: 27746
 2006-04-17 05:26:20 +00:00