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24435 Commits

Author SHA1 Message Date
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
Chris Lattner e2e2cc5b28 Encode a cost of zero as a cost of 1. 
llvm-svn: 27745
 2006-04-17 05:25:16 +00:00
Chris Lattner aac2a200cd Regenerate with correct offset 
llvm-svn: 27744
 2006-04-17 05:08:46 +00:00
Chris Lattner 3dcfef6310 Really, I can count! 
llvm-svn: 27743
 2006-04-17 05:05:52 +00:00
Chris Lattner 311b1a6e23 Increase the opcodes by one each to disambiguate COPY from VMRGHW. 
llvm-svn: 27742
 2006-04-17 00:47:48 +00:00
Chris Lattner 895dba9714 assign stable opcodes to the various altivec ops. 
llvm-svn: 27741
 2006-04-17 00:47:18 +00:00
Chris Lattner 77a3ca6357 PPCPerfectShuffle.h is autogenerated, don't include it in the LOC counts. 
llvm-svn: 27740
 2006-04-17 00:46:09 +00:00
Chris Lattner 07a3d01a91 Check in a table, generated by llvm-PerfectShuffle, of optimal shuffles 
of various 4-element vectors.

llvm-svn: 27739
 2006-04-17 00:37:02 +00:00
Chris Lattner ac66b4a11d Rename BuildShuffleTable -> PerfectShuffle 
llvm-svn: 27738
 2006-04-17 00:35:34 +00:00
Chris Lattner 156c85ea42 rename the table 
llvm-svn: 27737
 2006-04-17 00:33:35 +00:00
Chris Lattner 2951955da9 Initial checking of a perfect shuffle generation program for 4-element 
Altivec vectors.

llvm-svn: 27736
 2006-04-17 00:30:41 +00:00
Evan Cheng c6f665f5f3 Better way to splat v2f64 
llvm-svn: 27735
 2006-04-16 18:16:43 +00:00
Evan Cheng 20712deecb movduprm, movshduprm bugs 
llvm-svn: 27734
 2006-04-16 18:11:28 +00:00
Evan Cheng 3064f9aaa6 Encoding bugs 
llvm-svn: 27733
 2006-04-16 07:02:22 +00:00
Evan Cheng 685ddd8152 Can't fold loads into alias vector SSE ops used for scalar operation. The load 
address has to be 16-byte aligned but the values aren't spilled to 128-bit
locations.

llvm-svn: 27732
 2006-04-16 06:58:19 +00:00
Chris Lattner 06a21ba96b Implement a TODO: have the legalizer canonicalize a bunch of operations to 
one type (v4i32) so that we don't have to write patterns for each type, and
so that more CSE opportunities are exposed.

llvm-svn: 27731
 2006-04-16 01:37:57 +00:00
Chris Lattner 91226e5799 Add support for promoting stores from one legal type to another, allowing us 
to write one pattern for vector stores instead of 4.

llvm-svn: 27730
 2006-04-16 01:36:45 +00:00
Chris Lattner fa5aa396c2 Make the BUILD_VECTOR lowering code much more aggressive w.r.t constant vectors. 
Remove some done items from the todo list.

llvm-svn: 27729
 2006-04-16 01:01:29 +00:00
Chris Lattner 9095186deb Fix a bug in the 'shuffle(undef,x,mask) -> shuffle(x, undef,mask')' xform 
Make the insert/extract elt -> shuffle code more aggressive.

This fixes CodeGen/PowerPC/vec_shuffle.ll

llvm-svn: 27728
 2006-04-16 00:51:47 +00:00
Chris Lattner 34cebe785d Canonicalize shuffle(undef,x,mask) -> shuffle(x, undef,mask'). 
llvm-svn: 27727
 2006-04-16 00:03:56 +00:00
Chris Lattner 24acbe46c0 Fix a crash when faced with a shuffle vector that has an undef in its mask. 
llvm-svn: 27726
 2006-04-15 23:48:05 +00:00
Chris Lattner 873202fabd Add patterns for matching vnots with bit converted inputs. Most of these will 
go away when I start using evan's binop type canonicalizer

llvm-svn: 27725
 2006-04-15 23:45:24 +00:00
Chris Lattner 41df12ff4c Add a new vnot_conv predicate for matching vnot's where the allones vector is 
bitconverted from some other type.

llvm-svn: 27724
 2006-04-15 23:39:14 +00:00
Chris Lattner 7e7ad593cc Make these predicates return true for bit_convert(buildvector)'s as well as 
buildvectors.

llvm-svn: 27723
 2006-04-15 23:38:00 +00:00
Evan Cheng 8f1d801389 More encoding bugs 
llvm-svn: 27722
 2006-04-15 06:10:09 +00:00
Evan Cheng 91944e8699 pslldrm, psrawrm, etc. encoding bug 
llvm-svn: 27721
 2006-04-15 05:59:08 +00:00
Evan Cheng 1220b31a31 hsubp{s|d} encoding bug 
llvm-svn: 27720
 2006-04-15 05:52:42 +00:00
Evan Cheng 6222cf2a36 Silly bug 
llvm-svn: 27719
 2006-04-15 05:37:34 +00:00
Evan Cheng 65bb720a8b Do not use movs{h|l}dup for a shuffle with a single non-undef node. 
llvm-svn: 27718
 2006-04-15 03:13:24 +00:00
Chris Lattner 39fac448d6 significant cleanups to code that uses insert/extractelt heavily. This builds 
maximal shuffles out of them where possible.

llvm-svn: 27717
 2006-04-15 01:39:45 +00:00
Evan Cheng 0ba896c75b Added SSE (and other) entries to foldMemoryOperand(). 
llvm-svn: 27716
 2006-04-14 23:33:27 +00:00
Evan Cheng 00a5b3d9d3 Some clean up 
llvm-svn: 27715
 2006-04-14 23:32:40 +00:00
Chris Lattner 559c8ba466 Allow undef in a shuffle mask 
llvm-svn: 27714
 2006-04-14 23:19:08 +00:00
Chris Lattner 0875d94567 Move these ctors out of line 
llvm-svn: 27713
 2006-04-14 22:20:32 +00:00
Chris Lattner 5876571afc These instructions always return a packed vector. Improve the class definitions to expose this fact. 
llvm-svn: 27712
 2006-04-14 22:20:07 +00:00
Evan Cheng 5d247f81c1 Last few SSE3 intrinsics. 
llvm-svn: 27711
 2006-04-14 21:59:03 +00:00
Chris Lattner 3323ce165d Teach scalarrepl to promote unions of vectors and floats, producing 
insert/extractelement operations.  This implements
Transforms/ScalarRepl/vector_promote.ll

llvm-svn: 27710
 2006-04-14 21:42:41 +00:00
Chris Lattner 1c0ef4385d New testcase, checking to see we can turn this code: 
void test(vector float *F, float f) {
  vector float G = *F + *F;
  *((float*)&G) = f;
  *F = G + G;
}

void test2(vector float *F, float f) {
  vector float G = *F + *F;
  ((float*)&G)[2] = f;
  *F = G + G;
}

void test3(vector float *F, float *f) {
  vector float G = *F + *F;
  *f = ((float*)&G)[2];
}

void test4(vector float *F, float *f) {
  vector float G = *F + *F;
  *f = *((float*)&G);
}

into insert/extract element operations with no memory traffic.

llvm-svn: 27709
 2006-04-14 21:41:54 +00:00
Tanya Lattner b138bbe85b Adding back vector instructions to keep in mainline. 
llvm-svn: 27704
 2006-04-14 19:24:33 +00:00
Tanya Lattner 8333c7d736 Removing unimplemented vector instructions from language referrence. 
llvm-svn: 27703
 2006-04-14 19:07:42 +00:00
Reid Spencer 83ee73fdb8 Correct the Superclasses list for GlobalVariable and Function to indicate 
that they are "Constant" as they derive from GlobalValue. Also, fix some of
the wording where it mentions this.
Patch inspired by Nai Xia.

llvm-svn: 27701
 2006-04-14 14:11:48 +00:00
Reid Spencer 9a20587c27 Allow an option, -with-externals, to be specified that provides the location 
of the external tests. This turns into --with-externals option to configure.

llvm-svn: 27700
 2006-04-14 13:53:56 +00:00
Evan Cheng 3bd605397b Misc. SSE2 intrinsics: clflush, lfench, mfence 
llvm-svn: 27699
 2006-04-14 07:43:12 +00:00
Evan Cheng e349d01acf We were not adjusting the frame size to ensure proper alignment when alloca / 
vla are present in the function. This causes a crash when a leaf function
allocates space on the stack used to store / load with 128-bit SSE
instructions.

llvm-svn: 27698
 2006-04-14 07:26:43 +00:00
Evan Cheng 8d76f3922b New entry 
llvm-svn: 27697
 2006-04-14 07:24:04 +00:00
Reid Spencer ef56d92d6c Don't print out the install command for Intrinsics.gen unless VERBOSE mode. 
llvm-svn: 27696
 2006-04-14 06:32:31 +00:00