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5231 Commits

Author SHA1 Message Date
Evan Cheng 25b09295f8 Added X86 SSE2 intrinsics which can be represented as vector_shuffles. This is 
a temporary workaround for the 2-wide vector_shuffle problem (i.e. its mask
would have type v2i32 which is not legal).

llvm-svn: 27964
 2006-04-24 23:34:56 +00:00
Evan Cheng d03631ee76 Add a new entry. 
llvm-svn: 27963
 2006-04-24 23:30:10 +00:00
Evan Cheng 5c2bfb069e Special case handling two wide build_vector(0, x). 
llvm-svn: 27961
 2006-04-24 22:58:52 +00:00
Evan Cheng 63bd4d3730 Some missing movlps, movhps, movlpd, and movhpd patterns. 
llvm-svn: 27960
 2006-04-24 21:58:20 +00:00
Evan Cheng b0461080e4 A little bit more build_vector enhancement for v8i16 cases. 
llvm-svn: 27959
 2006-04-24 18:01:45 +00:00
Evan Cheng 2f9b0bcbd5 Remove a completed entry. 
llvm-svn: 27958
 2006-04-24 17:38:16 +00:00
Evan Cheng ab0ee6340c MakeMIInst() should handle jump table index operands. 
llvm-svn: 27955
 2006-04-24 05:37:35 +00:00
Chris Lattner f110527a29 Add a note 
llvm-svn: 27954
 2006-04-23 19:47:09 +00:00
Evan Cheng b4f31dd1a8 MOVL shuffle (i.e. movd or movss / movsd from memory) of undef, V2 == V2 
llvm-svn: 27953
 2006-04-23 06:35:19 +00:00
Nate Begeman 9f0b13c885 Optimized stores to the constant pool, while cool, are unnecessary. 
llvm-svn: 27948
 2006-04-22 22:31:45 +00:00
Nate Begeman 4ca2ea5b43 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.

llvm-svn: 27947
 2006-04-22 18:53:45 +00:00
Evan Cheng e728efdfce Don't do all the lowering stuff for 2-wide build_vector's. Also, minor optimization for shuffle of undef. 
llvm-svn: 27946
 2006-04-22 08:34:05 +00:00
Evan Cheng 16ef94f4e8 Fix a performance regression. Use {p}shuf* when there are only two distinct elements in a build_vector. 
llvm-svn: 27945
 2006-04-22 06:21:46 +00:00
Chris Lattner c8afdfec52 Teach the JIT how to relocate LI, this fixes the JIT on Prolangs-C/TimberWolfMC 
llvm-svn: 27943
 2006-04-22 06:17:56 +00:00
Evan Cheng 14215c36b6 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.

llvm-svn: 27939
 2006-04-21 23:03:30 +00:00
Nate Begeman 57a32f0bc1 Fix the comment 
llvm-svn: 27938
 2006-04-21 22:11:27 +00:00
Nate Begeman 516b393992 Change the PPC JIT to use a Static relocation model 
llvm-svn: 27937
 2006-04-21 22:04:15 +00:00
Chris Lattner 3e62d4b289 fix thinko 
llvm-svn: 27935
 2006-04-21 21:05:22 +00:00
Chris Lattner e1f9ab7d53 add some low-prio notes 
llvm-svn: 27934
 2006-04-21 21:03:21 +00:00
Evan Cheng e8b5180044 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

llvm-svn: 27923
 2006-04-21 01:05:10 +00:00
Chris Lattner 99d3da9d2c Fix the CodeGen/PowerPC/buildvec_canonicalize.ll regression last night. 
llvm-svn: 27908
 2006-04-20 19:01:30 +00:00
Chris Lattner d1c3a067ee add a note 
llvm-svn: 27907
 2006-04-20 18:49:28 +00:00
Chris Lattner 3e5521799c remove some v9 specific code 
llvm-svn: 27900
 2006-04-20 18:33:11 +00:00
Chris Lattner 2a875285f7 Remove this obsolete file 
llvm-svn: 27895
 2006-04-20 18:16:45 +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
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
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
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
Evan Cheng 4a1b0d3292 isSplatMask() bug: first element can be an undef. 
llvm-svn: 27847
 2006-04-19 23:28:59 +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 7855e4d032 Commute vector_shuffle to match more movlhps, movlp{s|d} cases. 
llvm-svn: 27840
 2006-04-19 20:35:22 +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 05bbec5020 add a note 
llvm-svn: 27832
 2006-04-19 16:22:38 +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
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
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