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24641 Commits

Author SHA1 Message Date
Chris Lattner 79c50d96c9 Mapping of physregs can make it so that the designated and input physregs are 
the same.  In this case, don't emit a noop copy.

llvm-svn: 28008
 2006-04-28 04:43:18 +00:00
Chris Lattner e63d808b6e Fix Transforms/Reassociate/2006-04-27-ReassociateVector.ll 
llvm-svn: 28007
 2006-04-28 04:14:49 +00:00
Chris Lattner 7abfb81e30 new testcase 
llvm-svn: 28006
 2006-04-28 04:14:29 +00:00
Evan Cheng f0157cb0bc Use movaps instead of movapd for spill / restore. 
llvm-svn: 28005
 2006-04-28 02:23:35 +00:00
Evan Cheng 51ab4498e7 Added a temporary option -no-isel-fold-inflight to control whether a "inflight" 
node can be folded.

llvm-svn: 28003
 2006-04-28 02:09:19 +00:00
Evan Cheng 54acf6eddc When isel'ing a node, mark its operands "InFlight" before selecting them. These 
nodes should not be folded into other nodes.
This fixes the miscompilation of PR 749.
Temporarily under flag control.

llvm-svn: 28002
 2006-04-28 02:08:10 +00:00
Chris Lattner 84e95d00b5 When we have a two-address instruction where the input cannot be clobbered 
and is already available, instead of falling back to emitting a load, fall
back to emitting a reg-reg copy.  This generates significantly better code
for some SSE testcases, as SSE has lots of two-address instructions and
none of them are read/modify/write.  As one example, this change does:

        pshufd %XMM5, XMMWORD PTR [%ESP + 84], 255
        xorps %XMM2, %XMM5
        cmpltps %XMM1, %XMM0
-       movaps XMMWORD PTR [%ESP + 52], %XMM0
-       movapd %XMM6, XMMWORD PTR [%ESP + 52]
+       movaps %XMM6, %XMM0
        cmpltps %XMM6, XMMWORD PTR [%ESP + 68]
        movapd XMMWORD PTR [%ESP + 52], %XMM6
        movaps %XMM6, %XMM0
        cmpltps %XMM6, XMMWORD PTR [%ESP + 36]
        cmpltps %XMM3, %XMM0
-       movaps XMMWORD PTR [%ESP + 20], %XMM0
-       movapd %XMM7, XMMWORD PTR [%ESP + 20]
+       movaps %XMM7, %XMM0
        cmpltps %XMM7, XMMWORD PTR [%ESP + 4]
        movapd XMMWORD PTR [%ESP + 20], %XMM7
        cmpltps %XMM4, %XMM0

... which is far better than a store followed by a load!

llvm-svn: 28001
 2006-04-28 01:46:50 +00:00
Evan Cheng c4d77c46b8 Test case for PR748 
llvm-svn: 28000
 2006-04-28 01:21:37 +00:00
Chris Lattner a4c2c4a276 Add a note 
llvm-svn: 27999
 2006-04-28 00:04:05 +00:00
Chris Lattner b209131b56 Add a note 
llvm-svn: 27998
 2006-04-27 21:40:57 +00:00
Chris Lattner b6cb64b7e6 Add support for inserting undef into a vector. This implements 
Transforms/InstCombine/vec_insert_to_shuffle.ll

llvm-svn: 27997
 2006-04-27 21:14:21 +00:00
Chris Lattner 51fecaa8b3 This should turn into one vector shuffle instruction. 
llvm-svn: 27996
 2006-04-27 21:13:58 +00:00
Evan Cheng f4f3f0d25f Make x86 isel lowering produce tailcall nodes. They are match to normal calls 
for now.

Patch contributed by Alexander Friedman.

llvm-svn: 27994
 2006-04-27 08:40:39 +00:00
Evan Cheng ec04a37edd A couple of new entries. 
llvm-svn: 27993
 2006-04-27 08:31:33 +00:00
Evan Cheng 89001ad729 Support for passing 128-bit vector arguments via XMM registers. 
llvm-svn: 27992
 2006-04-27 08:31:10 +00:00
Evan Cheng 3784f3c57c Insert a VBIT_CONVERT between a FORMAL_ARGUMENT node and its vector uses 
(VAND, VADD, etc.). Legalizer will assert otherwise.

llvm-svn: 27991
 2006-04-27 08:29:42 +00:00
Reid Spencer bb0be98fed For PR747: 
If we fail to find a required program, simply set that program to echo
out something that tells the user the situation. That is, instead of just
"true runtest" we now get "echo 'Skipped: runtest not found'".

llvm-svn: 27990
 2006-04-27 07:49:24 +00:00
Evan Cheng a0374e1bed Oops 
llvm-svn: 27989
 2006-04-27 05:44:50 +00:00
Evan Cheng 24eb3f4765 Bug fix: not updating NumIntRegs. 
llvm-svn: 27988
 2006-04-27 05:35:28 +00:00
Chris Lattner 393d96a56c Fix Regression/CodeGen/Generic/2006-04-26-SetCCAnd.ll and 
PR748.

llvm-svn: 27987
 2006-04-27 05:01:07 +00:00
Chris Lattner fb1ab10337 new testcase 
llvm-svn: 27986
 2006-04-27 05:00:43 +00:00
Evan Cheng 48940d16b2 - Clean up formal argument lowering code. Prepare for vector pass by value work. 
- Fixed vararg support.

llvm-svn: 27985
 2006-04-27 01:32:22 +00:00
Chris Lattner f98b4aa2e7 Fix some nondeterminstic behavior in the mem2reg pass that (in addition to 
nondeterminism being bad) could cause some trivial missed optimizations (dead
phi nodes being left around for later passes to clean up).

With this, llvm-gcc4 now bootstraps and correctly compares.  I don't know
why I never tried to do it before... :)

llvm-svn: 27984
 2006-04-27 01:14:43 +00:00
Jeff Cohen 027fbc2a6a Actually, semantical doesn't appear to be a word. 
llvm-svn: 27983
 2006-04-26 21:03:17 +00:00
Chris Lattner e8cbdbf314 Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't 
recognize some simple affine IV's.

llvm-svn: 27982
 2006-04-26 18:34:07 +00:00
Chris Lattner 684a8546f4 new testcase 
llvm-svn: 27981
 2006-04-26 18:32:59 +00:00
Evan Cheng 1c39903297 Fix fastcc failures. 
llvm-svn: 27980
 2006-04-26 18:21:31 +00:00
Chris Lattner 6b764e7625 Unfortunately this really isn't the place for advertisement. 
llvm-svn: 27979
 2006-04-26 18:10:59 +00:00
Jeff Cohen e42f3ba44c Fix typo. 
llvm-svn: 27978
 2006-04-26 18:05:25 +00:00
Reid Spencer 4d3171fc41 Fix some anchors. 
llvm-svn: 27977
 2006-04-26 15:46:53 +00:00
Reid Spencer 9aa244ed16 Add some notes about the current state of source (front end) languages 
so we can point to them on llvm-dev.

llvm-svn: 27976
 2006-04-26 14:52:19 +00:00
Evan Cheng e0bcfbe811 Switching over FORMAL_ARGUMENTS mechanism to lower call arguments. 
llvm-svn: 27975
 2006-04-26 01:20:17 +00:00
Evan Cheng 9618df1190 Don't forget return void. 
llvm-svn: 27974
 2006-04-25 23:03:35 +00:00
Nate Begeman 4530327c04 Keep the stack from on darwin 16-byte aligned. This fixes many JIT 
failres.

llvm-svn: 27973
 2006-04-25 20:54:26 +00:00
Evan Cheng a9467aab0a Separate LowerOperation() into multiple functions, one per opcode. 
llvm-svn: 27972
 2006-04-25 20:13:52 +00:00
Andrew Lenharth 3c775bcd86 slightly more useful error message 
llvm-svn: 27971
 2006-04-25 19:33:41 +00:00
Andrew Lenharth f5a713d273 better c99 struct handling 
llvm-svn: 27970
 2006-04-25 19:33:23 +00:00
Andrew Lenharth a3f7583408 another c99 style problem 
llvm-svn: 27969
 2006-04-25 19:27:56 +00:00
Evan Cheng 4cc3e0b05f Fix a typo. 
llvm-svn: 27968
 2006-04-25 17:48:41 +00:00
Nate Begeman 48ccd3f826 Fix a warning 
llvm-svn: 27967
 2006-04-25 17:46:32 +00:00
Nate Begeman 318bb96f9e No functionality changes, but cleaner code with correct comments. 
llvm-svn: 27966
 2006-04-25 04:45:59 +00:00
Evan Cheng fb46b2bf5d Explicitly specify result type for def : Pat<> patterns (if it produces a vector 
result). Otherwise tblgen will pick the default (v16i8 for 128-bit vector).

llvm-svn: 27965
 2006-04-25 00:50:01 +00:00
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 347a5a7afa Added a movq test case. 
llvm-svn: 27962
 2006-04-24 23:03:22 +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
Chris Lattner 3046d54df2 Suggest looking at the SPARC backend. How weird is that?? :) 
llvm-svn: 27957
 2006-04-24 16:34:45 +00:00
Evan Cheng 60bb622e4d Added addJumpTableIndex 
llvm-svn: 27956
 2006-04-24 06:42:15 +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 866b4b4d45 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

llvm-svn: 27952
 2006-04-23 06:26:20 +00:00
Jeff Cohen 7a2a972ba9 Keep Visual Studio informed. 
llvm-svn: 27951
 2006-04-23 04:37:08 +00:00
Nate Begeman 3e04bb482b Code cleanup associated with jump tables, thanks to Chris for noticing 
these.

llvm-svn: 27950
 2006-04-22 23:52:35 +00:00
Nate Begeman ecb1dafd3d Turn of jump tables for a bit, there are still some issues to work out with 
updating the machine CFG.

llvm-svn: 27949
 2006-04-22 23:51:56 +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
Evan Cheng 40ff2928ed Two more build_vector tests. 
llvm-svn: 27944
 2006-04-22 06:19:11 +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
Chris Lattner 17aae4c516 This no longer needs the JIT. 
llvm-svn: 27942
 2006-04-22 05:04:23 +00:00
Chris Lattner fe36eaebda 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

llvm-svn: 27941
 2006-04-22 05:02:46 +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 905bd17dc7 typo 
llvm-svn: 27936
 2006-04-21 21:37:40 +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
Chris Lattner b21d3bfd1f The BFS scheduler is apparently nondeterminstic (causes many llvmgcc bootstrap 
miscompares).  Switch RISC targets to use the list-td scheduler, which isn't.

llvm-svn: 27933
 2006-04-21 17:16:16 +00:00
Evan Cheng 236d23b88e movddup is a SSE3 instruction. 
llvm-svn: 27932
 2006-04-21 16:42:47 +00:00
Chris Lattner 28ead23d1c Remove a hack required by V9. 
llvm-svn: 27931
 2006-04-21 15:33:35 +00:00
Chris Lattner 662e940f73 Fix a couple more memory issues 
llvm-svn: 27930
 2006-04-21 15:32:26 +00:00
Reid Spencer d835ea4c1c Remove the extraneous --defined-only option to nm. This is the default and 
some versions of nm don't recognize it (its a gnu option).

llvm-svn: 27928
 2006-04-21 05:29:25 +00:00
Evan Cheng 9c2707ad5a Add && to each RUN: line (except the last one). 
llvm-svn: 27927
 2006-04-21 04:58:23 +00:00
Evan Cheng 8ef22ae8af More build_vector tests. 
llvm-svn: 27926
 2006-04-21 01:22:41 +00:00
Evan Cheng 5ddb6f991f Check for llc crash. 
llvm-svn: 27925
 2006-04-21 01:21:23 +00:00
Evan Cheng b3864a0ce4 To be replaced with another test. 
llvm-svn: 27924
 2006-04-21 01:12:32 +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 cc47ab3305 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).

llvm-svn: 27922
 2006-04-20 23:55:59 +00:00
Reid Spencer 5e6f97b7c9 Don't require the "dot" program if -flat option is given, and don't produce 
any of the fancy graphs or other output. Just produce the flat, makefile
style output on stdout.

llvm-svn: 27921
 2006-04-20 23:09:57 +00:00
Jeff Cohen 9c0ba827f7 Keep Visual Studio informed. 
llvm-svn: 27920
 2006-04-20 22:19:06 +00:00
Reid Spencer aff245875b Configure llvm-config in tools, not utils. 
llvm-svn: 27919
 2006-04-20 22:15:30 +00:00
Reid Spencer 0a1de79808 Remove the llvm-config directory. Its now in tools. 
llvm-svn: 27918
 2006-04-20 21:16:32 +00:00
Reid Spencer 6826031c70 llvm-config doesn't live here anymore ==> tools 
llvm-svn: 27917
 2006-04-20 21:15:41 +00:00
Reid Spencer 2b1041cf13 Okay, llvm-config is good to go now. 
llvm-svn: 27916
 2006-04-20 21:14:39 +00:00
Reid Spencer 5952201b67 Several Changes To Support Building llvm-config: 
1. If Perl is not available, don't run Perl dependent targets.
2. Check in FinalLibDeps.txt for build environments that can't build it
   because there's no Perl processor.
3. Ensure that FinalLibDeps.txt depends on LibDeps.txt so it is
   automatically regenerated.
4. Support objdir != srcdir building.

llvm-svn: 27915
 2006-04-20 21:13:58 +00:00
Reid Spencer 62b9b71ff7 Don't build llvm-config until issues are resolved. 
llvm-svn: 27914
 2006-04-20 21:00:24 +00:00
Reid Spencer 57d891afe1 Build the llvm-config directory as a tool. 
llvm-svn: 27913
 2006-04-20 20:53:23 +00:00
Chris Lattner dae49df407 Fix Transforms/ScalarRepl/2006-04-20-PromoteCrash.ll 
llvm-svn: 27912
 2006-04-20 20:48:50 +00:00
Chris Lattner c11f4f4214 new testcase 
llvm-svn: 27911
 2006-04-20 20:48:32 +00:00
Reid Spencer 8794317843 Update the library dependencies for 1.8 with SparcV9 now gone. 
llvm-svn: 27910
 2006-04-20 19:50:53 +00:00
Evan Cheng 968db7ffb7 Don't know what I was thinking... 
llvm-svn: 27909
 2006-04-20 19:47:28 +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
Reid Spencer 53345be5e2 Remove Burg as a directory to be considered. 
llvm-svn: 27906
 2006-04-20 18:47:13 +00:00
Reid Spencer a278128a59 Remove more references to Burg. 
llvm-svn: 27905
 2006-04-20 18:46:45 +00:00
Reid Spencer 355913aa7a Remove reference to BURG variable. It no longer exists. 
llvm-svn: 27904
 2006-04-20 18:44:24 +00:00
Chris Lattner 32150b90b7 remove some stuff 
llvm-svn: 27903
 2006-04-20 18:43:59 +00:00
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
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
Chris Lattner 086e986e94 Make this assertion better 
llvm-svn: 27695
 2006-04-14 06:08:35 +00:00
Chris Lattner 174bccb676 Force a specific config, because this test fails in certain configs otherwise. 
llvm-svn: 27694
 2006-04-14 06:06:51 +00:00
Chris Lattner 4211ca9108 Move the rest of the PPCTargetLowering::LowerOperation cases out into 
separate functions, for simplicity and code clarity.

llvm-svn: 27693
 2006-04-14 06:01:58 +00:00