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13982 Commits

Author SHA1 Message Date
Evan Cheng
64e9769339 Some missing movlps, movhps, movlpd, and movhpd patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27960 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 21:58:20 +00:00
Evan Cheng
c78d3b43f5 A little bit more build_vector enhancement for v8i16 cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27959 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 18:01:45 +00:00
Evan Cheng
86661f4879 Remove a completed entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27958 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 17:38:16 +00:00
Evan Cheng
49bca8536c MakeMIInst() should handle jump table index operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27955 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-24 05:37:35 +00:00
Chris Lattner
57a6c135f2 Add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27954 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-23 19:47:09 +00:00
Evan Cheng
9293451e3f MOVL shuffle (i.e. movd or movss / movsd from memory) of undef, V2 == V2 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-23 06:35:19 +00:00
Nate Begeman
9453eea49b Fix the updating of the machine CFG when a PHI node was in a successor of 
the jump table's range check block.  This re-enables 100% dense jump tables
by default on PPC & x86


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27952 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-23 06:26:20 +00:00
Nate Begeman
3700a4d3a2 Code cleanup associated with jump tables, thanks to Chris for noticing 
these.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27950 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 23:52:35 +00:00
Nate Begeman
05f9466cf0 Turn of jump tables for a bit, there are still some issues to work out with 
updating the machine CFG.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27949 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 23:51:56 +00:00
Nate Begeman
a766765358 Optimized stores to the constant pool, while cool, are unnecessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27948 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 22:31:45 +00:00
Nate Begeman
37efe67645 JumpTable support! What this represents is working asm and jit support for 
x86 and ppc for 100% dense switch statements when relocations are non-PIC.
This support will be extended and enhanced in the coming days to support
PIC, and less dense forms of jump tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27947 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 18:53:45 +00:00
Evan Cheng
1900c012f5 Don't do all the lowering stuff for 2-wide build_vector's. Also, minor optimization for shuffle of undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27946 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 08:34:05 +00:00
Evan Cheng
a083af14c8 Fix a performance regression. Use {p}shuf* when there are only two distinct elements in a build_vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27945 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 06:21:46 +00:00
Chris Lattner
ea4a9c575f Teach the JIT how to relocate LI, this fixes the JIT on Prolangs-C/TimberWolfMC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27943 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 06:17:56 +00:00
Chris Lattner
b003d76cb3 Fix JIT support for static ctors, which was apparently completely broken! 
This allows Prolangs-C++/city and probably a bunch of other stuff to work
well with the new front-end


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27941 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-22 05:02:46 +00:00
Evan Cheng
ba05f728b5 Revamp build_vector lowering to take advantage of movss and movd instructions. 
movd always clear the top 96 bits and movss does so when it's loading the
value from memory.
The net result is codegen for 4-wide shuffles is much improved. It is near
optimal if one or more elements is a zero. e.g.

__m128i test(int a, int b) {
  return _mm_set_epi32(0, 0, b, a);
}

compiles to

_test:
	movd 8(%esp), %xmm1
	movd 4(%esp), %xmm0
	punpckldq %xmm1, %xmm0
	ret

compare to gcc:

_test:
	subl	$12, %esp
	movd	20(%esp), %xmm0
	movd	16(%esp), %xmm1
	punpckldq	%xmm0, %xmm1
	movq	%xmm1, %xmm0
	movhps	LC0, %xmm0
	addl	$12, %esp
	ret

or icc:

_test:
        movd      4(%esp), %xmm0                                #5.10
        movd      8(%esp), %xmm3                                #5.10
        xorl      %eax, %eax                                    #5.10
        movd      %eax, %xmm1                                   #5.10
        punpckldq %xmm1, %xmm0                                  #5.10
        movd      %eax, %xmm2                                   #5.10
        punpckldq %xmm2, %xmm3                                  #5.10
        punpckldq %xmm3, %xmm0                                  #5.10
        ret                                                     #5.10

There are still room for improvement, for example the FP variant of the above example:

__m128 test(float a, float b) {
  return _mm_set_ps(0.0, 0.0, b, a);
}

_test:
	movss 8(%esp), %xmm1
	movss 4(%esp), %xmm0
	unpcklps %xmm1, %xmm0
	xorps %xmm1, %xmm1
	movlhps %xmm1, %xmm0
	ret

The xorps and movlhps are unnecessary. This will require post legalizer optimization to handle.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27939 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 23:03:30 +00:00
Nate Begeman
d9993b0b2d Fix the comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27938 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 22:11:27 +00:00
Nate Begeman
6fcbd6961d Change the PPC JIT to use a Static relocation model 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27937 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 22:04:15 +00:00
Chris Lattner
6e68a7752b fix thinko 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27935 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 21:05:22 +00:00
Chris Lattner
3e663a6c16 add some low-prio notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27934 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 21:03:21 +00:00
Chris Lattner
4a1cd9c61e The BFS scheduler is apparently nondeterminstic (causes many llvmgcc bootstrap 
miscompares).  Switch RISC targets to use the list-td scheduler, which isn't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27933 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 17:16:16 +00:00
Chris Lattner
a5d824e90c Remove a hack required by V9. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27931 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 15:33:35 +00:00
Chris Lattner
ef027f940c Fix a couple more memory issues 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27930 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 15:32:26 +00:00
Evan Cheng
017dcc6e55 Now generating perfect (I think) code for "vector set" with a single non-zero 
scalar value.

e.g.
        _mm_set_epi32(0, a, 0, 0);
==>
	movd 4(%esp), %xmm0
	pshufd $69, %xmm0, %xmm0

        _mm_set_epi8(0, 0, 0, 0, 0, a, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0);
==>
	movzbw 4(%esp), %ax
	movzwl %ax, %eax
	pxor %xmm0, %xmm0
	pinsrw $5, %eax, %xmm0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27923 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-21 01:05:10 +00:00
Chris Lattner
fedced7bc3 Fix a really subtle and obnoxious memory bug that caused issues with an 
llvm-gcc4 boostrap.  Whenever a node is deleted by the dag combiner, it
*must* be returned by the visit function, or the dag combiner will not
know that the node has been processed (and will, e.g., send it to the
target dag combine xforms).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27922 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 23:55:59 +00:00
Chris Lattner
df4f226cdc Fix Transforms/ScalarRepl/2006-04-20-PromoteCrash.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27912 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 20:48:50 +00:00
Chris Lattner
ba2194ae84 Fix the CodeGen/PowerPC/buildvec_canonicalize.ll regression last night. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27908 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 19:01:30 +00:00
Chris Lattner
879acefed5 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27907 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:49:28 +00:00
Chris Lattner
a29526275b remove some v9 specific code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27900 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:33:11 +00:00
Chris Lattner
1b87c42c82 This field no longer exists 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27899 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:32:41 +00:00
Chris Lattner
060054b9d9 Remove this obsolete file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27895 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:16:45 +00:00
Chris Lattner
02e5f8dcda Remove some of the obvious V9-specific cruft 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27893 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 18:08:53 +00:00
Chris Lattner
2706983c48 This target is no longer built. The ,v files now live in the reoptimizer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27885 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 17:15:44 +00:00
Andrew Lenharth
7a31b975fb Make code match cvs commit message :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27881 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 15:41:37 +00:00
Andrew Lenharth
8117f9a40e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27880 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 14:56:47 +00:00
Evan Cheng
39623daef6 - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27875 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 08:58:49 +00:00
Evan Cheng
44f1f09b4e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27874 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 08:56:16 +00:00
Chris Lattner
0231007269 Make sure that the new instructions selected have the right type. This fixes 
CodeGen/PowerPC/2006-04-19-vmaddfp-crash.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27868 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 05:58:10 +00:00
Chris Lattner
62b5772959 Implement folding of a bunch of binops with undef 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27863 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 05:39:12 +00:00
Evan Cheng
72cd9a9439 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27849 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-20 00:11:39 +00:00
Evan Cheng
94fe5eb14a isSplatMask() bug: first element can be an undef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 23:28:59 +00:00
Chris Lattner
89a1b380a4 Simplify some code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27846 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 23:17:50 +00:00
Evan Cheng
80d428c370 - Added support to do aribitrary 4 wide shuffle with no more than three 
instructions.
- Fixed a commute vector_shuff bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27845 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 22:48:17 +00:00
Evan Cheng
fd111b5be5 Prefer {p}unpack* and mov*dup over {p}shuf* as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27844 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 21:15:24 +00:00
Evan Cheng
f5e1dc278b Renamed AddedCost to AddedComplexity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27843 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 20:38:28 +00:00
Evan Cheng
2dadaea5d2 - Renamed AddedCost to AddedComplexity. 
- Added more movhlps and movlhps patterns.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27842 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 20:37:34 +00:00
Evan Cheng
533a0aa9ba Commute vector_shuffle to match more movlhps, movlp{s|d} cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27840 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 20:35:22 +00:00
Evan Cheng
f66a094cac More mov{h|l}p{d|s} patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27836 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 18:20:17 +00:00
Evan Cheng
cc0e98c8ed - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27835 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 18:11:52 +00:00
Evan Cheng
5941320c0d Allow "let AddedCost = n in" to increase pattern complexity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 18:07:24 +00:00
Chris Lattner
8cc5ffb27f add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27832 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 16:22:38 +00:00
Andrew Lenharth
9df47b5928 Another simple case type merge case to try 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 15:34:34 +00:00
Andrew Lenharth
613926904f deal with memchr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27830 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 15:34:02 +00:00
Andrew Lenharth
5e091f3e32 friendlier error message 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27829 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 15:33:35 +00:00
Chris Lattner
bf9b3716ed add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27828 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 05:55:06 +00:00
Chris Lattner
ff5cdc2ccd Add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27827 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 05:53:27 +00:00
Andrew Lenharth
92e2196f0b stupid stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27821 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-19 03:45:25 +00:00
Andrew Lenharth
1c212dec24 I understand now. Shoot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27819 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 22:36:11 +00:00
Evan Cheng
f0d4e3d7c0 - PEXTRW cannot take a memory location as its first source operand. 
- PINSRWrmi encoding bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27818 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:59:43 +00:00
Evan Cheng
f463f51161 SHUFP{S|D}, PSHUF* encoding bugs. Left out the mask immediate operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27817 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:56:36 +00:00
Evan Cheng
b7a5c527ae Name change for clarity sake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27816 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:55:35 +00:00
Evan Cheng
a52b214f56 Encoding bug: CMPPSrmi, CMPPDrmi dropped operand 2 (condtion immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27815 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:31:08 +00:00
Evan Cheng
7b7bd57abd Name change for clarity sake 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27814 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:29:50 +00:00
Evan Cheng
fb2a3b2964 Left a pattern out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27813 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 21:29:08 +00:00
Andrew Lenharth
a544266db7 llvm.memc* improvements. helps PA a lot in some specmarks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27812 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 20:59:52 +00:00
Andrew Lenharth
2dbf23afb4 llvm.memc* improvements. helps PA a lot in some specmarks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27811 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 19:54:11 +00:00
Chris Lattner
80f362a48f These are correctly encoded by the JIT. I checked :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27810 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 19:03:38 +00:00
Chris Lattner
87140126e8 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27809 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 18:30:19 +00:00
Chris Lattner
0090120c2b 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;
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27808 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 18:28:22 +00:00
Evan Cheng
df2a1908b2 Fixed an encoding bug: movd from XMM to R32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27807 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 18:19:00 +00:00
Chris Lattner
f70f8d91a7 pretty print node name 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27806 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 18:05:58 +00:00
Chris Lattner
90564f26d1 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27804 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 17:59:36 +00:00
Chris Lattner
3be29059ab move some stuff around, clean things up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27802 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 17:52:36 +00:00
Chris Lattner
993c897390 Teach the codegen about instructions used for SSE spill code, allowing it 
to optimize cases where it has to spill a lot


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27801 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 16:44:51 +00:00
Chris Lattner
cea2aa77eb Use vmladduhm to do v8i16 multiplies which is faster and simpler than doing 
even/odd halves.  Thanks to Nate telling me what's what.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27793 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 04:28:57 +00:00
Chris Lattner
19a815238e 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27792 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 03:57:35 +00:00
Evan Cheng
4980467476 Correct comments 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27790 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 03:45:01 +00:00
Chris Lattner
72dd9bdcc5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27789 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 03:43:48 +00:00
Chris Lattner
e7c768ea24 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27788 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 03:24:30 +00:00
Evan Cheng
74e955d931 Another entry 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27786 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 01:22:57 +00:00
Evan Cheng
7fa094a261 Another entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27784 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-18 00:21:01 +00:00
Evan Cheng
cdfc3c82a7 Use movss to insert_vector_elt(v, s, 0). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27782 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 22:45:49 +00:00
Chris Lattner
fd6bdf0b0f Turn x86 unaligned load/store intrinsics into aligned load/store instructions 
if the pointer is known aligned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27781 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 22:26:56 +00:00
Chris Lattner
80edfb3af5 Fix handling of calls in functions that use vectors. This fixes a crash on 
the code in GCC PR26546.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27780 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 22:10:08 +00:00
Evan Cheng
5edb8d270c Use two pinsrw to insert an element into v4i32 / v4f32 vector. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27779 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 22:04:06 +00:00
Chris Lattner
22fcbb1320 remove done item 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27778 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:52:03 +00:00
Chris Lattner
f9568d8700 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27777 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:48:13 +00:00
Chris Lattner
48d7c069c7 Add a MachineInstr::eraseFromParent convenience method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27775 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:35:41 +00:00
Evan Cheng
23b72005fa Encoding bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27773 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:33:57 +00:00
Chris Lattner
402504b1ba 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27772 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:22:06 +00:00
Chris Lattner
939274fcfd 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27771 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:19:12 +00:00
Chris Lattner
369503f841 Move some knowledge about registers out of the code emitter into the register info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27770 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 21:07:20 +00:00
Chris Lattner
f7d2372b74 Use a small table instead of macros to do this conversion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27769 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 20:59:25 +00:00
Evan Cheng
c575ca22ea Implement v8i16, v16i8 splat using unpckl + pshufd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27768 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 20:43:08 +00:00
Chris Lattner
b2be4032c5 implement returns of a vector, testcase here: CodeGen/X86/vec_return.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27767 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 20:32:50 +00:00
Chris Lattner
8d5a894501 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27765 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 19:21:01 +00:00
Chris Lattner
dbce85dedf 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27764 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 18:09:22 +00:00
Evan Cheng
51c9c43656 Incorrect foldMemoryOperand entries 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27763 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 18:06:12 +00:00
Evan Cheng
083248e143 Errors in patterns preventing load folding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27762 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 18:05:01 +00:00
Jeff Cohen
3c280bf4d1 Add checks for __OpenBSD__. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27761 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-04-17 17:55:41 +00:00