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Author SHA1 Message Date
Andrew Lenharth
ef07d5c5a5 deal with memchr 
llvm-svn: 27830
 2006-04-19 15:34:02 +00:00
Andrew Lenharth
09948a5331 friendlier error message 
llvm-svn: 27829
 2006-04-19 15:33:35 +00:00
Chris Lattner
62537a04fb add a note 
llvm-svn: 27828
 2006-04-19 05:55:06 +00:00
Chris Lattner
99c7c3ad2f Add a note. 
llvm-svn: 27827
 2006-04-19 05:53:27 +00:00
Chris Lattner
411111435e grammaro 
llvm-svn: 27826
 2006-04-19 04:21:57 +00:00
Chris Lattner
8b3c2c9a9d Fix a bug owen noticed 
llvm-svn: 27825
 2006-04-19 04:21:16 +00:00
Chris Lattner
c76104e09b Change wording 
llvm-svn: 27824
 2006-04-19 04:12:01 +00:00
Chris Lattner
bd5802ad9b add a note 
llvm-svn: 27823
 2006-04-19 04:05:21 +00:00
Chris Lattner
966f0d4424 add some more notes 
llvm-svn: 27822
 2006-04-19 04:02:47 +00:00
Andrew Lenharth
d89cdc541a stupid stuff 
llvm-svn: 27821
 2006-04-19 03:45:25 +00:00
Andrew Lenharth
90e3af9ab1 fix printing call graphs 
llvm-svn: 27820
 2006-04-18 23:45:19 +00:00
Andrew Lenharth
87c0d713cc I understand now. Shoot. 
llvm-svn: 27819
 2006-04-18 22:36:11 +00:00
Evan Cheng
7364ee1c92 - 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
d6fa185be2 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
f16e4bf29d Name change for clarity sake 
llvm-svn: 27816
 2006-04-18 21:55:35 +00:00
Evan Cheng
82d7cacbbc Encoding bug: CMPPSrmi, CMPPDrmi dropped operand 2 (condtion immediate). 
llvm-svn: 27815
 2006-04-18 21:31:08 +00:00
Evan Cheng
8e87e9b0db Name change for clarity sake 
llvm-svn: 27814
 2006-04-18 21:29:50 +00:00
Evan Cheng
838f053b09 Left a pattern out 
llvm-svn: 27813
 2006-04-18 21:29:08 +00:00
Andrew Lenharth
4d432bcb19 llvm.memc* improvements. helps PA a lot in some specmarks 
llvm-svn: 27812
 2006-04-18 20:59:52 +00:00
Andrew Lenharth
d5fd116ede llvm.memc* improvements. helps PA a lot in some specmarks 
llvm-svn: 27811
 2006-04-18 19:54:11 +00:00
Chris Lattner
f58f727be6 These are correctly encoded by the JIT. I checked :) 
llvm-svn: 27810
 2006-04-18 19:03:38 +00:00
Chris Lattner
5f153584d9 add a note 
llvm-svn: 27809
 2006-04-18 18:30:19 +00:00
Chris Lattner
47a41ae889 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
2cd4e2d240 Fixed an encoding bug: movd from XMM to R32. 
llvm-svn: 27807
 2006-04-18 18:19:00 +00:00
Chris Lattner
2bd91746e1 pretty print node name 
llvm-svn: 27806
 2006-04-18 18:05:58 +00:00
Chris Lattner
44ea12c5f8 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
43ef757c0e new testcase 
llvm-svn: 27803
 2006-04-18 17:56:30 +00:00
Chris Lattner
519001b0ee move some stuff around, clean things up 
llvm-svn: 27802
 2006-04-18 17:52:36 +00:00
Chris Lattner
3e2a664ada 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
7821901005 Fix a copy & paste error from long ago. 
llvm-svn: 27800
 2006-04-18 16:03:18 +00:00
Chris Lattner
a72743cb57 Add some more notes, many still missing 
llvm-svn: 27799
 2006-04-18 06:32:08 +00:00
Reid Spencer
87e24202fb 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
04ccc317bc 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
276916c3bf add a bunch of stuff, pieces still missing 
llvm-svn: 27796
 2006-04-18 06:18:36 +00:00
Chris Lattner
8228f79eae Add a warning. 
llvm-svn: 27795
 2006-04-18 05:31:20 +00:00
Chris Lattner
90357afa3d Add a warning 
llvm-svn: 27794
 2006-04-18 05:26:10 +00:00
Chris Lattner
e90fdf3b98 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
5951b60cb4 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
fd1fb64f66 Add tests for v8i16 and v16i8 
llvm-svn: 27791
 2006-04-18 03:54:50 +00:00
Evan Cheng
6be2e4b419 Correct comments 
llvm-svn: 27790
 2006-04-18 03:45:01 +00:00
Chris Lattner
4d84b56e64 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
613d7fda64 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
ab9ad1cdc1 new testcase 
llvm-svn: 27787
 2006-04-18 03:22:16 +00:00
Evan Cheng
13a5022494 Another entry 
llvm-svn: 27786
 2006-04-18 01:22:57 +00:00
Chris Lattner
d664951c95 Fix a build failure on Vladimir's tester. 
llvm-svn: 27785
 2006-04-18 00:21:25 +00:00
Evan Cheng
2f9011cd87 Another entry. 
llvm-svn: 27784
 2006-04-18 00:21:01 +00:00
Evan Cheng
98b1ca65dd Use movss to insert_vector_elt(v, s, 0). 
llvm-svn: 27782
 2006-04-17 22:45:49 +00:00
Chris Lattner
76beeb373d 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
8c8f1e35c9 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
ecf13c5d79 Use two pinsrw to insert an element into v4i32 / v4f32 vector. 
llvm-svn: 27779
 2006-04-17 22:04:06 +00:00