Dan Gohman
f9a9a9928c
Factor out code for computing umin and smin for SCEV expressions into
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helper functions. Based on a patch by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73869 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22 03:18:45 +00:00
Chris Lattner
2cf5f14f20
start implementing some simple operand parsing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73867 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22 01:29:09 +00:00
Dan Gohman
a334aa7a10
Teach ScalarEvolution how to analyze loops with multiple exit
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blocks, and also exit blocks with multiple conditions (combined
with (bitwise) ands and ors). It's often infeasible to compute an
exact trip count in such cases, but a useful upper bound can often
be found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73866 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22 00:31:57 +00:00
Dan Gohman
743ab498d8
Delete an unused variable.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73865 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22 00:19:17 +00:00
Dan Gohman
03ad6982c4
Fix this code to correctly handle loops with multiple exits. Until
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now, this hasn't mattered, because ScalarEvolution hasn't been able
to compute trip counts for loops with multiple exits. But it will
soon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73864 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-22 00:15:15 +00:00
Dan Gohman
5392dce881
Rename a variable for consistency with the ExitBlock vs ExitingBlock
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terminology that LoopInfo uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73863 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 23:48:38 +00:00
Dan Gohman
51f53b7f5a
Fix ScalarEvolution's backedge-taken count computations to check for
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overflow when computing a integer division to round up.
Thanks to Nick Lewycky for noticing this!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73862 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 23:46:38 +00:00
Chris Lattner
14ee48a5ba
rename SourceMgr::PrintError to PrintMessage.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73861 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 21:22:11 +00:00
Chris Lattner
b0789ed5a4
set up the top-level parsing loop.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73860 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 20:54:55 +00:00
Chris Lattner
27aa7d259b
stub out parser for asm files. Change invariant on lexer to always
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print its error message when it returns an asmtok::Error token.
Compute a proper error code for llvm-mc in 'lex' mode. Add new
-as-lex option to enable lexing mode (vs parsing mode).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73859 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 20:16:42 +00:00
Chris Lattner
10a907d70f
add string literals.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73858 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 19:56:35 +00:00
Chris Lattner
4506bd2cfd
hopefully fix the build on linux.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73857 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 19:43:50 +00:00
Chris Lattner
4226bb02fb
simplify some error recovery stuff.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73856 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 19:22:49 +00:00
Chris Lattner
4651bca31b
implement enough of a lexer to get through Olden/health/Output/health.llc.s
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without errors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73855 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 19:21:25 +00:00
Rafael Espindola
1c3329f707
Fix PR4185.
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Handle FpSET_ST0_80 being used when ST0 is still alive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73850 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 12:02:51 +00:00
Chris Lattner
4577bbaa12
oh yeah, cmake needs to be told explicitly about new files :)
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73849 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 07:19:34 +00:00
Chris Lattner
a59e877996
some baby steps.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 07:19:10 +00:00
Chris Lattner
d926e048c1
prune #include, fix warning.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73847 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 05:33:06 +00:00
Chris Lattner
b23677e076
start wiring up support for asm parsing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73846 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 05:22:37 +00:00
Chris Lattner
7ee5d5f97b
move include searching logic from TGLexer to SourceMgr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73845 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 05:06:04 +00:00
Chris Lattner
8070ea3f06
Rename TGSourceMgr -> SourceMgr.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73844 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 03:41:50 +00:00
Chris Lattner
1e3a8a4924
rename TGLoc -> SMLoc.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73843 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 03:39:35 +00:00
Chris Lattner
099e198ae8
move TGSourceMgr class out of TableGen into libsupport.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73842 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 03:36:54 +00:00
Chris Lattner
e372333597
simplify closing paren and (rip) printing.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73841 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 02:22:53 +00:00
Chris Lattner
4150c086d0
indentation fix
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73840 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 02:22:34 +00:00
Nick Lewycky
e47f59db44
Expand this test to handle more cases (remainder and shifts) of zero.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73839 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 01:56:41 +00:00
Chris Lattner
5b038b793c
fit in 80 cols
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73838 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 01:52:00 +00:00
Chris Lattner
2f429e5eb6
remove #if 0 code
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73837 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 01:48:49 +00:00
Chris Lattner
aecaa1f143
cosmetic changes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 01:27:55 +00:00
Chris Lattner
1db6866147
implement PR4424: 0/x is always 0 for integer division.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73835 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-21 01:15:55 +00:00
Chris Lattner
5c0b16d0c4
change TLS_ADDR lowering to lower to a real mem operand, instead of matching as
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a global with that gets printed with the :mem modifier. All operands to lea's
should be handled with the lea32mem operand kind, and this allows the TLS stuff
to do this. There are several better ways to do this, but I went for the minimal
change since I can't really test this (beyond make check).
This also makes the use of EBX explicit in the operand list in the 32-bit,
instead of implicit in the instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 20:38:48 +00:00
Chris Lattner
6bfb669f82
no need for unwind info
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 19:48:26 +00:00
Chris Lattner
811ac0b088
no need for unwind info here.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73831 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 19:43:09 +00:00
Chris Lattner
8cb65a5092
remove dead code, the main codepath never has to deal
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with MBB's.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 19:34:47 +00:00
Chris Lattner
7680e73341
eliminate the "call" operand modifier from the asm descriptions, modeling
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it as a pcrel immediate instead. This gets pc-rel weirdness out of the
main printoperand codepath.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73829 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 19:34:09 +00:00
Duncan Sands
434ca80b31
Clarify that if the alignment is zero then an alignment
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compatible with the type will be used (at least the ABI
alignment).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73827 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 13:26:06 +00:00
Chris Lattner
7f8217f64b
fix edit-o
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73824 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 08:13:12 +00:00
Chris Lattner
dc479f6ebf
some comments and cleanup
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73818 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 07:59:10 +00:00
Chris Lattner
c12430644a
implement support for lowering subregs when preparing to print
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LEA64_32r, eliminating a bunch of modifier logic stuff on addr modes.
Implement support for printing mbb labels as operands.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73817 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 07:03:18 +00:00
Evan Cheng
694f6c81e8
Fix PR4419: handle defs of partial uses.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73816 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 04:34:51 +00:00
Devang Patel
e9fe6c7729
Remove unused field.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73815 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 01:07:54 +00:00
Devang Patel
66b4d3ba52
Initialize MMI
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73813 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 01:00:07 +00:00
Chris Lattner
ad48be0ea3
hook up printMemReference.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73811 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:50:32 +00:00
Chris Lattner
f38c03af2a
Start implementing translation of MachineInstr to MCInst. Next
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step is to make tblgen generate something more appropriate for MCInst,
and generate calls to operand translation routines where needed.
This includes a bunch of #if 0 code which will slowly be refactored into
something sensible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73810 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:49:26 +00:00
Chris Lattner
bb5d44d7c4
make immediates be int64_t like machineoperand. Add some apis
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:47:37 +00:00
Dan Gohman
97b52b2a88
Tweak this test to be a little less unusual.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:40:56 +00:00
Dan Gohman
763bad1a2b
Generalize isLoopGuardedByCond's checking to consider two
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SCEVUnknowns with identical Instructions to be equal. This allows
it to analze cases such as the attached testcase, where the front-end
has cloned the loop controlling expression. Along with r73805, this
lets IndVarSimplify eliminate all the sign-extend casts in the
loop in the attached testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:35:32 +00:00
Owen Anderson
107a537db1
Workaround for an... interesting bug in Darwin's pthread_rwlock_init.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:32:27 +00:00
Dan Gohman
3964acc2f4
Use ScalarEvolution's new GetMinSignBits and GetMinLeadingZeros
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in the loop backedge-taken count computation of the maximum
possible trip count.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73805 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:32:22 +00:00
Owen Anderson
cc40f077b0
Add debugging code to test for various locking faux-pas's, when running in single threaded mode. This should help improve testing coverage for
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threading support, without having extensive actually concurrent clients yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73803 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-20 00:27:21 +00:00