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068321707d
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21592 Commits

Author SHA1 Message Date
Chris Lattner
068321707d Fix scalarrepl to not 'miscompile' undefined code, part #2. 
This fixes the store case, my previous patch just fixed the load
case.  rdar://5707076.

llvm-svn: 46932
 2008-02-10 19:05:37 +00:00
Nate Begeman
297d683980 xmm0 variable blends 
llvm-svn: 46931
 2008-02-10 18:47:57 +00:00
Dan Gohman
cabaec582f Rename MRegisterInfo to TargetRegisterInfo. 
llvm-svn: 46930
 2008-02-10 18:45:23 +00:00
Duncan Sands
2c2b2822d3 Add truncate and AssertZext result expansion. 
llvm-svn: 46926
 2008-02-10 10:08:52 +00:00
Bill Wendling
20621788d4 Return "(c1 + c2)" instead of yet another ADD node (which made this a 
no-op).

llvm-svn: 46922
 2008-02-10 08:10:24 +00:00
Chris Lattner
bc59a2704b add anote 
llvm-svn: 46918
 2008-02-10 01:01:35 +00:00
Nick Lewycky
b072c0b3ed Match GCC's behaviour for these sections. 
llvm-svn: 46916
 2008-02-10 00:03:54 +00:00
Nate Begeman
2627ffd14b memopv16i8 had wrong alignment requirement, would have broken pabsb 
pabs{b,w,d} are not two address
fix extract-to-mem sse4 ops
add sse4 vector sign extend nodes

llvm-svn: 46915
 2008-02-09 23:46:37 +00:00
Wojciech Matyjewicz
8095000596 We should check that existing cast operation has the appropriate opcode before we reuse it. 
llvm-svn: 46908
 2008-02-09 18:30:13 +00:00
Evan Cheng
869b54e60c Remove unused hidden option. 
llvm-svn: 46903
 2008-02-09 08:36:28 +00:00
Nate Begeman
a78c35a368 Skeleton of insert and extract matching, more to come 
llvm-svn: 46902
 2008-02-09 01:38:08 +00:00
Nate Begeman
336fba2146 Tablegen support for insert & extract element matching 
llvm-svn: 46901
 2008-02-09 01:37:05 +00:00
Chris Lattner
22696c10f0 check that terminators only occur at the end of a block. This catches the 
common problem of putting two terminators in the same block.  I can't write
a testcase for this because the .ll parser rejects this before the verifier
can, but this can occur when generating IR.

llvm-svn: 46900
 2008-02-09 01:06:01 +00:00
Dan Gohman
672d341167 Change ConstantSDNode to store an APInt instead of a uint64_t, and 
begin adding some methods to use it this way.

llvm-svn: 46899
 2008-02-08 22:59:30 +00:00
Devang Patel
9aba178666 Fix PR 1995. 
llvm-svn: 46898
 2008-02-08 22:49:13 +00:00
Evan Cheng
83066786b0 Forgot these files. 
llvm-svn: 46896
 2008-02-08 22:05:27 +00:00
Evan Cheng
2d3d000878 Also print alignment. 
llvm-svn: 46895
 2008-02-08 22:05:07 +00:00
Evan Cheng
90f03a0b88 It's not always safe to fold movsd into xorpd, etc. Check the alignment of the load address first to make sure it's 16 byte aligned. 
llvm-svn: 46893
 2008-02-08 21:20:40 +00:00
Dale Johannesen
9bbfeaea4d 64-bit (MMX) vectors do not need restrictive alignment. 
128-bit vectors need it only when SSE is on.

llvm-svn: 46890
 2008-02-08 19:48:20 +00:00
Dan Gohman
d1cc100aef Avoid needlessly casting away const qualifiers. 
llvm-svn: 46877
 2008-02-08 03:29:40 +00:00
Dan Gohman
1f255f2db7 Avoid needlessly casting away const qualifiers. 
llvm-svn: 46876
 2008-02-08 03:26:46 +00:00
Evan Cheng
b2bc19ee5b Added missing entries in X86 load / store folding tables. 
llvm-svn: 46866
 2008-02-08 00:12:56 +00:00
Evan Cheng
0c6aedd740 Remove remnant of load folding in local register allocator. Patch by Holger Schurig. 
llvm-svn: 46861
 2008-02-07 19:46:55 +00:00
Dan Gohman
eb7c8e4f6b Follow Chris' suggestion; change the PseudoSourceValue accessors 
to return pointers instead of references, since this is always what
is needed.

llvm-svn: 46857
 2008-02-07 18:41:25 +00:00
Dan Gohman
3af6eba3dd Add SourceValue information for outgoing argument stores on x86. 
llvm-svn: 46854
 2008-02-07 16:28:05 +00:00
Dan Gohman
ebca101f50 Don't abort if a MemOperand is missing a SourceValue; just print it 
as <unknown>. And make some minor adjustments to the MemOperand
dump format.

llvm-svn: 46853
 2008-02-07 16:18:00 +00:00
Evan Cheng
a377b2bbd1 Fix a x86-64 codegen deficiency. Allow gv + offset when using rip addressing mode. 
Before:
_main:
        subq    $8, %rsp
        leaq    _X(%rip), %rax
        movsd   8(%rax), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret
Now:
_main:
        subq    $8, %rsp
        movsd   _X+8(%rip), %xmm1
        movss   _X(%rip), %xmm0
        call    _t
        xorl    %ecx, %ecx
        movl    %ecx, %eax
        addq    $8, %rsp
        ret

Notice there is another idiotic codegen issue that needs to be fixed asap:
xorl    %ecx, %ecx
movl    %ecx, %eax

llvm-svn: 46850
 2008-02-07 08:53:49 +00:00
Evan Cheng
92635b3d94 In some cases, e.g. ADD32ri, no transformation is made. Guide against it. 
llvm-svn: 46849
 2008-02-07 08:29:53 +00:00
Nick Lewycky
b0f0e69df2 Don't make up new directives. (".set_foobar") 
llvm-svn: 46848
 2008-02-07 06:36:26 +00:00
Dan Gohman
b4aa0b2a15 Fix a typo in a comment. 
llvm-svn: 46836
 2008-02-07 02:30:40 +00:00
Dan Gohman
011075cfdb Add support to FoldingSet for hashing APInt objects. 
llvm-svn: 46833
 2008-02-06 23:09:15 +00:00
Dan Gohman
f00842e086 Re-apply the memory operand changes, with a fix for the static 
initializer problem, a minor tweak to the way the
DAGISelEmitter finds load/store nodes, and a renaming of the
new PseudoSourceValue objects.

llvm-svn: 46827
 2008-02-06 22:27:42 +00:00
Bill Wendling
8a28ab4b1f Temporarily reverting: 
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20080128/057882.html

This is causing a miscompilation on PPC G5 and just now seeing it on iMac x86-64.

llvm-svn: 46822
 2008-02-06 20:03:07 +00:00
Evan Cheng
2091d9a2e8 Fix a number of local register allocator issues: PR1609. 
llvm-svn: 46821
 2008-02-06 19:16:53 +00:00
Evan Cheng
34815d69b2 RegAllocaLocal still *requires* LiveVariables since it runs PHIElimination, followed by TwoAddress which requires LiveVariables. We cannot run LiveVariables on non-SSA code. 
llvm-svn: 46813
 2008-02-06 08:00:32 +00:00
Tanya Lattner
1234229bc7 Throttle the non-local dependence analysis for basic blocks with more than 50 predecessors. Added command line option to play with this threshold. 
llvm-svn: 46790
 2008-02-06 00:54:55 +00:00
Evan Cheng
851d353eb8 Fix PR1975: dag isel emitter produces patterns that isel wrong flag result. 
llvm-svn: 46776
 2008-02-05 22:50:29 +00:00
Evan Cheng
e509232483 Move to getCALLSEQ_END to ensure CALLSEQ_END node produces a flag. This is consistent with the definition in td file. 
llvm-svn: 46775
 2008-02-05 22:44:06 +00:00
Chris Lattner
5c9fc804d7 Make RenamePass faster by making the 'is this a new phi node' 
check more intelligent.  This speeds up mem2reg from 5.29s to 
0.79s on a synthetic testcase with tons of predecessors and
phi nodes.

llvm-svn: 46767
 2008-02-05 21:26:23 +00:00
Dale Johannesen
e8fa3130f8 Implement sseregparm. 
llvm-svn: 46764
 2008-02-05 20:46:33 +00:00
Evan Cheng
69d5e0fc0f If a vr is already marked alive in a bb, then it has PHI uses that are visited earlier, then it is not killed in the def block (i.e. not dead). 
llvm-svn: 46763
 2008-02-05 20:04:18 +00:00
Nate Begeman
9f4245c16a Ident mnemonics appropriately 
llvm-svn: 46746
 2008-02-05 08:49:09 +00:00
Chris Lattner
96deed5d4d Fix a bug compiling PR1978 (perhaps not the only one though) which 
was incorrectly simplifying "x == (gep x, 1, i)" into false, even 
though i could be negative.  As it turns out, all the code to 
handle this already existed, we just need to disable the incorrect
optimization case and let the general case handle it.

llvm-svn: 46739
 2008-02-05 04:45:32 +00:00
Owen Anderson
28d90a4a6a Fix an obscure read-after-free bug that Duncan found. 
llvm-svn: 46738
 2008-02-05 04:34:03 +00:00
Evan Cheng
352062f5f7 Typo. 
llvm-svn: 46725
 2008-02-04 23:10:38 +00:00
Evan Cheng
1c67dcaae7 Dwarf requires variable entries to be in the source order. Right now, since we are recording variable information at isel time this means parameters would appear in the reverse order. The short term fix is to issue recordVariable() at asm printing time instead. 
llvm-svn: 46724
 2008-02-04 23:06:48 +00:00
Nate Begeman
2b00217d58 This method should be virtual 
llvm-svn: 46723
 2008-02-04 23:04:24 +00:00
Nate Begeman
8285430ed7 Eliminate some redundant code. 
llvm-svn: 46720
 2008-02-04 21:44:06 +00:00
Ted Kremenek
6dab41ed32 Added "bucket_iterators" to FoldingSet. Bucket iterators allow iteration 
over all the nodes in a particular bucket.

llvm-svn: 46716
 2008-02-04 21:11:17 +00:00
Devang Patel
ab8c21f3a1 Set error message. 
Patch by Shantonu Sen.

llvm-svn: 46715
 2008-02-04 20:57:54 +00:00