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Author SHA1 Message Date
Tobias Grosser
0560ce471d Update autoconf/automake versions in the documentation to match the versions used in Autogen.sh 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104113 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 07:00:17 +00:00
Daniel Dunbar
597f17d5f1 MC/X86: Lower MOV{8,16,32,64}{rm,mr} to fixed-register forms, as appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 06:20:44 +00:00
Evan Cheng
5fd1c9be2d Mark pattern-less mayLoad / mayStore instructions neverHasSideEffects. These do not have other un-modeled side effects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 06:07:03 +00:00
Evan Cheng
3c3195cbf1 Target instruction selection should copy memoperands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 06:06:09 +00:00
Daniel Dunbar
9248b3208a MC/X86: Strip spurious operands from CALL64r as we do for CALL64pcrel32, to 
avoid same prefix byte problem as in r104062.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 04:31:36 +00:00
Evan Cheng
ea420b20d4 Mark a few more pattern-less instructions with neverHasSideEffects. This is especially important on instructions like t2LEApcreal which are prime candidate for machine LICM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 01:52:25 +00:00
Dan Gohman
86026cd24e Add a comment explaining why this code uses Append mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 01:21:34 +00:00
Evan Cheng
0a942dbb1e Intrinsics which do a vector compare (results are all zero or all ones) are modeled as icmp / fcmp + sext. This is turned into a vsetcc by dag combine (yes, not a good long term solution). The targets can then isel the vsetcc to the appropriate instruction. 
The trouble arises when the result of a vector cmp + sext is then and'ed with all ones. Instcombine will turn it into a vector cmp + zext, dag combiner will miss turning it into a vsetcc and hell breaks loose after that.

Teach dag combine to turn a vector cpm + zest into a vsetcc + and 1. This fixes rdar://7923010.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 01:08:17 +00:00
Dan Gohman
7c2e03916c Factor out the code for picking integer arithmetic with immediate 
opcodes into a helper function. This fixes a few places in the code
which were not properly selecting the 8-bit-immediate opcodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104091 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 00:53:19 +00:00
Eric Christopher
cc6b6b9348 Add a test to make sure that we're lowering the shift amount correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104090 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-19 00:22:04 +00:00
Dan Gohman
57aaa0b264 Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104089 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 23:55:57 +00:00
Dan Gohman
360026f07f Fix the predicate which checks for non-sensical formulae which have 
constants in registers which partially cancel out their immediate fields.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104088 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 23:48:08 +00:00
Dan Gohman
b2df433f71 Factor out the code for recomputing an LSRUse's Regs set after some 
of its formulae have been removed into a helper function, and also
teach it how to update the RegUseTracker.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104087 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 23:42:37 +00:00
Bob Wilson
417d1705bb Fix a crash when debugging the coalescer. DebugValue instructions are not 
in the coalescer's instruction map.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104086 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 23:19:42 +00:00
Dan Gohman
d079c300ed Factor out code for estimating search space complexity into a helper 
function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:51:59 +00:00
Dan Gohman
0da751baf7 Add some more debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104080 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:41:32 +00:00
Dan Gohman
d69d62833a Factor out the code for deleting a formula from an LSRUse into 
a helper function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104079 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:39:15 +00:00
Dan Gohman
6458ff9230 Make some debug output more informative. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104078 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:37:37 +00:00
Dan Gohman
c4cfbaf217 Print an error message in Formula::print if the HasBaseReg flag 
is inconsistent with the BaseRegs field. It's not print's job to
assert on an invalid condition, but it can make one more obvious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104077 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:35:55 +00:00
Dan Gohman
90bb355b16 Rename RegUseTracker's RegUses member to RegUsesMap to avoid 
confusion with LSRInstance's RegUses member.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104076 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:33:00 +00:00
Jakob Stoklund Olesen
dcf7708ad9 Remember to update VirtRegLastUse when spilling without killing before a call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104074 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 22:20:09 +00:00
Dan Gohman
f8c1ef0510 Teach mode load folding and unfolding code about CMP32ri8 and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104068 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:54:15 +00:00
Bill Wendling
2abc93d0fb Don't eliminate frame pointers from leaf functions if "--disable-fp-elim" is 
specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104066 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:47:08 +00:00
Dan Gohman
e5efbafdac When converting a test to a cmp to fold a load, use the cmp that has an 
8-bit immediate field rather than one with a wider immediate field.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104064 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:42:03 +00:00
Eric Christopher
b4e876e37e Quick test to make sure we're emitting the tbss section correctly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104063 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:40:20 +00:00
Chris Lattner
6db0363bdc make mcinstlower remove all but the first operand to CALL64pcrel32. 
The register use operands (e.g. the first argument is passed in a 
register) is currently being modeled as a normal register use,
instead of correctly being an implicit use.  This causes the operand
to get propagated onto the mcinst, which was causing the encoder to
emit a rex prefix byte, which generates an invalid call.

This fixes rdar://7998435


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104062 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:40:18 +00:00
Evan Cheng
28dad2a5ca Sink dag combine's post index load / store code that swap base ptr and index into the target hook. Only the target knows whether the swap is safe. In Thumb2 mode, the offset must be an immediate. rdar://7998649 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:31:17 +00:00
Eric Christopher
011c3f110b Implement EmitTBSSSymbol for MachOStreamer. 
Fixes build failure as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:26:41 +00:00
mike-m
eb75870206 Fix enum to address array bounds regression. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104058 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:22:12 +00:00
Eric Christopher
4d01cbe93b Make EmitTBSSSymbol take a section argument so that we can find it later. 
Fix up callers and users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:16:04 +00:00
Jakob Stoklund Olesen
0eeb05c969 Properly handle multiple definitions of a virtual register in the same 
instruction.

This can happen on ARM:

>> %reg1035:5<def>, %reg1035:6<def> = VLD1q16 %reg1028, 0, pred:14, pred:%reg0
Regs: Q0=%reg1032* R0=%reg1028* R1=%reg1029* R2 R3=%reg1031*
Killing last use: %reg1028
Allocating %reg1035 from QPR
Assigning %reg1035 to Q1
<< %D2<def>, %D3<def> = VLD1q16 %R0<kill>, 0, pred:14, pred:%reg0, %Q1<imp-def>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104056 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 21:10:50 +00:00
Dale Johannesen
0182fa2e38 Test passed on ppc, to my surprise; if it worked 
there it may work everywhere...



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 20:47:04 +00:00
Evan Cheng
5012f9b825 Continuously refine the register class of REG_SEQUENCE def with all the source registers and sub-register indices. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104051 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 20:07:47 +00:00
Evan Cheng
27e4840e03 Fix PR7162: Use source register classes and sub-indices to determine the correct register class of the definitions of REG_SEQUENCE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104050 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 20:03:28 +00:00
Dale Johannesen
f336bea195 Testcase for llvm-gcc checkin 104042. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104043 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 19:03:51 +00:00
Kevin Enderby
9f2ad11624 Incorporate Daniel's suggestion and use !isdigit(CurPtr[0]) and not 
CurPtr[0] == '\n' when testing the character after a "0b" when looking
to see if it part of a something like "jmp 0b".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104039 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 18:09:20 +00:00
Kevin Enderby
d8ba292c9b Fixed the problem with a branch to "0b" that was not parsed by llvm-mc 
correctly.  The Lexer was incorrectly eating the newline casusing it to branch
to address 0.  Updated the test case to use a "0:" label and a branch to "0b".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104038 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:51:35 +00:00
Jakob Stoklund Olesen
6a8d2c6119 Teach the machine code verifier to use getSubRegisterRegClass(). 
The old approach was wrong. It had an off-by-one error.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:31:12 +00:00
Daniel Dunbar
2ae4bfd769 MC/Mach-O: Implement support for setting indirect symbol table offset in section header. 
Also, create symbol data for LHS of assignment, to match 'as' symbol ordering better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104033 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:28:24 +00:00
Daniel Dunbar
56279f42b6 MC/Mach-O: Remove some FIXMEs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:28:20 +00:00
Daniel Dunbar
ca1212de59 MC/Mach-O: Fail faster/harder when we see .file, which isn't yet supported. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104031 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:28:17 +00:00
Daniel Dunbar
3f40b31256 MC/X86: Implement custom lowering to make sure we match things like 
X86::ADC32ri $0, %eax
to
  X86::ADC32i32 $0

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104030 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:22:24 +00:00
Daniel Dunbar
3538c808f8 llc (et al): Add support for --show-encoding and --show-inst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 17:22:19 +00:00
Dan Gohman
68e947ac61 Usage of O_NONBLOCK in bjam is now confirmed as a bug and fixed upstream. 
Update the comment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104021 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 15:25:14 +00:00
Benjamin Kramer
47f9a49560 Simplify MCContext::(Next|Get)Instance 
- Allocate MCLabels in the context so they don't leak.
- Avoid duplicated densemap lookup.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104020 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 12:15:34 +00:00
Sean Hunt
853197557c Replace FIRST_* and LAST_* macros with a generic STMT_RANGE macro 
Also rename ABSTRACT to ABSTRACT_STMT

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104018 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 06:22:50 +00:00
Evan Cheng
a083988c8a FIX PR7158. SimplifyVBinOp was asserting when it fails to constant fold (op (build_vector), (build_vector)). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-18 00:03:40 +00:00
Jakob Stoklund Olesen
535af4a320 ARMBaseRegisterInfo::estimateRSStackSizeLimit() could return prematurely with a 
too large limit.

The function would return immediately when finding an addrmode 3/5 instruction.
It needs to keep scanning in case there is an addrmode 6 instruction which drops
the limit to 0.

A test case is very difficult to produce because it will only fail when the
scavenger is used.

rdar://problem/7894847

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 23:29:23 +00:00
Evan Cheng
c6dcce3ba5 Fix PR7175. Insert copies of a REG_SEQUENCE source if it is used by other REG_SEQUENCE instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 23:24:12 +00:00
Bill Wendling
53f7602b61 - Set the "HasCalls" flag after instruction selection is finished. 
- Change the logic DisableFramePointerElim() to check for the
  -disable-non-leaf-fp-elim before -disable-fp-elim.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@103990 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-05-17 23:09:50 +00:00