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Author SHA1 Message Date
Owen Anderson
c023151c9f SCEVHandle is no more! 
llvm-svn: 73906
 2009-06-22 21:39:50 +00:00
Bob Wilson
6e81f12950 Use thumb2 for ARM architectures V6T2 and later. Fix a bug in checking 
for "thumb" and add a check for V6T2.

llvm-svn: 73905
 2009-06-22 21:28:22 +00:00
Dan Gohman
54899b84bc Fix some typos that Duncan noticed. 
llvm-svn: 73903
 2009-06-22 21:10:22 +00:00
Evan Cheng
2814371831 It's coalescer, not coaleser. 
llvm-svn: 73902
 2009-06-22 21:09:17 +00:00
Bob Wilson
0c2c5f65e2 For Darwin on ARMv6 and newer, make register r9 available for use as a 
caller-saved register.

llvm-svn: 73901
 2009-06-22 21:01:46 +00:00
Dale Johannesen
e577db0efd Fix memcpy expansion so it won't generate invalid 
types for the target (I think).  This was breaking
the PPC32 calling sequence.

llvm-svn: 73900
 2009-06-22 20:59:07 +00:00
Evan Cheng
2410955c62 Fix another register coalescer crash: forgot to check if the instruction being updated has already been coalesced. 
llvm-svn: 73898
 2009-06-22 20:49:32 +00:00
Bruno Cardoso Lopes
4615b9cdf9 Use different functions to emit the string and symbol tables. 
llvm-svn: 73895
 2009-06-22 19:29:56 +00:00
Bruno Cardoso Lopes
7b196ba30e Add more methods to gather target specific elf stuff 
Support for .text relocations, implementing TargetELFWriter overloaded methods for x86/x86_64.
Use a map to track global values to their symbol table indexes
Code cleanup and small fixes

llvm-svn: 73894
 2009-06-22 19:16:16 +00:00
Evan Cheng
b37e7e24d0 hasFP should return true if frame address is taken. 
llvm-svn: 73893
 2009-06-22 18:38:48 +00:00
Owen Anderson
83b6bbdcb4 Banish global state from ScalarEvolution! SCEV uniquing is now done by tables attached to the ScalarEvolution pass. 
This also throws out the SCEV reference counting scheme, as the the SCEVs now have a lifetime controlled by the
ScalarEvolution pass.

Note that SCEVHandle is now a no-op, and will be remove in a future commit.

llvm-svn: 73892
 2009-06-22 18:25:46 +00:00
Bob Wilson
dd1f69e6fb Recognize and handle ARM v7 target triples for Darwin. 
llvm-svn: 73889
 2009-06-22 18:01:28 +00:00
Bob Wilson
c859e1c6bb Fix llvm-gcc build for armv6t2 and later architectures. The hasV6T2Ops 
predicate does not check if Thumb mode is enabled, and when in ARM mode
there are still some checks for constant-pool use that need to run.

llvm-svn: 73887
 2009-06-22 17:29:13 +00:00
Dan Gohman
30b38faa05 Make use of getUMinFromMismatchedTypes when computing backedge-taken 
counts for loops with multiple exits, replacing more conservative code
which only handled constants. This is derived from a patch by
Nick Lewycky.

This also fixes llc aborts in ClamAV and others, as
getUMinFromMismatchedTypes takes care of balancing the types before
working with them.

llvm-svn: 73884
 2009-06-22 15:09:28 +00:00
Dan Gohman
cc245913e3 Add a getUMinFromMismatchedTypes helper function. 
llvm-svn: 73883
 2009-06-22 15:03:27 +00:00
Duncan Sands
5e54310d7d Include cstdio to get EOF, needed with gcc-4.4. 
llvm-svn: 73879
 2009-06-22 06:59:32 +00:00
Chris Lattner
886ab50a50 process memory operands with a parenthesized expression for a displacement, 
like "(4+5)(%eax)".

llvm-svn: 73878
 2009-06-22 06:35:58 +00:00
Chris Lattner
5927443800 Implement full support for parsing primary expressions. We can now parse 
all of health and voronoi (ignoring directives).  We only get 409 lines into
176.gcc though because we don't have binary operators yet:

Parsing 176.gcc.llc.s:409: unexpected token in operand list
	movsbl	_arityvec+1(,%edi,8), %eax
	      	         ^

llvm-svn: 73877
 2009-06-22 06:32:03 +00:00
Chris Lattner
370f52dc85 implement parser support for '*' operands, as in "call *%eax". 
llvm-svn: 73876
 2009-06-22 06:02:13 +00:00
Chris Lattner
06378f9853 implement memory operand parsing. 
llvm-svn: 73875
 2009-06-22 05:51:26 +00:00
Dale Johannesen
bb07cd38e3 Testcase for (llvm-gcc) 73873. Usually 
std::pair<double, float*>
is 16 bytes on darwin-powerpc, but not always.
See testcase for full weirdness.

llvm-svn: 73874
 2009-06-22 04:47:32 +00:00
Dan Gohman
d65752db50 Factor out code for computing umin and smin for SCEV expressions into 
helper functions. Based on a patch by Nick Lewycky.

llvm-svn: 73869
 2009-06-22 03:18:45 +00:00
Chris Lattner
82084cf5a1 start implementing some simple operand parsing. 
llvm-svn: 73867
 2009-06-22 01:29:09 +00:00
Dan Gohman
db7860aa40 Teach ScalarEvolution how to analyze loops with multiple exit 
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.

llvm-svn: 73866
 2009-06-22 00:31:57 +00:00
Dan Gohman
b2c544ddbd Delete an unused variable. 
llvm-svn: 73865
 2009-06-22 00:19:17 +00:00
Dan Gohman
8426522d55 Fix this code to correctly handle loops with multiple exits. Until 
now, this hasn't mattered, because ScalarEvolution hasn't been able
to compute trip counts for loops with multiple exits. But it will
soon.

llvm-svn: 73864
 2009-06-22 00:15:15 +00:00
Dan Gohman
1a33c92bb2 Rename a variable for consistency with the ExitBlock vs ExitingBlock 
terminology that LoopInfo uses.

llvm-svn: 73863
 2009-06-21 23:48:38 +00:00
Dan Gohman
eb0a67278b Fix ScalarEvolution's backedge-taken count computations to check for 
overflow when computing a integer division to round up.

Thanks to Nick Lewycky for noticing this!

llvm-svn: 73862
 2009-06-21 23:46:38 +00:00
Chris Lattner
dd95ab3ca9 rename SourceMgr::PrintError to PrintMessage. 
llvm-svn: 73861
 2009-06-21 21:22:11 +00:00
Chris Lattner
f896c01361 set up the top-level parsing loop. 
llvm-svn: 73860
 2009-06-21 20:54:55 +00:00
Chris Lattner
89e17d02b1 stub out parser for asm files. Change invariant on lexer to always 
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).

llvm-svn: 73859
 2009-06-21 20:16:42 +00:00
Chris Lattner
26507d1082 add string literals. 
llvm-svn: 73858
 2009-06-21 19:56:35 +00:00
Chris Lattner
9f3189ec41 hopefully fix the build on linux. 
llvm-svn: 73857
 2009-06-21 19:43:50 +00:00
Chris Lattner
9e30cac8cf simplify some error recovery stuff. 
llvm-svn: 73856
 2009-06-21 19:22:49 +00:00
Chris Lattner
b6cfcfadd4 implement enough of a lexer to get through Olden/health/Output/health.llc.s 
without errors.

llvm-svn: 73855
 2009-06-21 19:21:25 +00:00
Rafael Espindola
373c6bdbc5 Fix PR4185. 
Handle FpSET_ST0_80 being used when ST0 is still alive.

llvm-svn: 73850
 2009-06-21 12:02:51 +00:00
Chris Lattner
f0c5d670e0 oh yeah, cmake needs to be told explicitly about new files :) 
llvm-svn: 73849
 2009-06-21 07:19:34 +00:00
Chris Lattner
7a7ac287db some baby steps. 
llvm-svn: 73848
 2009-06-21 07:19:10 +00:00
Chris Lattner
8646a745ca prune #include, fix warning. 
llvm-svn: 73847
 2009-06-21 05:33:06 +00:00
Chris Lattner
c94208cf9c start wiring up support for asm parsing. 
llvm-svn: 73846
 2009-06-21 05:22:37 +00:00
Chris Lattner
c865ea76a6 move include searching logic from TGLexer to SourceMgr. 
llvm-svn: 73845
 2009-06-21 05:06:04 +00:00
Chris Lattner
5b9a2d79c0 Rename TGSourceMgr -> SourceMgr. 
llvm-svn: 73844
 2009-06-21 03:41:50 +00:00
Chris Lattner
4ff2620742 rename TGLoc -> SMLoc. 
llvm-svn: 73843
 2009-06-21 03:39:35 +00:00
Chris Lattner
4ed87b8790 move TGSourceMgr class out of TableGen into libsupport. 
llvm-svn: 73842
 2009-06-21 03:36:54 +00:00
Chris Lattner
06e180b758 simplify closing paren and (rip) printing. 
llvm-svn: 73841
 2009-06-21 02:22:53 +00:00
Chris Lattner
e358de060d indentation fix 
llvm-svn: 73840
 2009-06-21 02:22:34 +00:00
Nick Lewycky
4020821885 Expand this test to handle more cases (remainder and shifts) of zero. 
llvm-svn: 73839
 2009-06-21 01:56:41 +00:00
Chris Lattner
a01650186d fit in 80 cols 
llvm-svn: 73838
 2009-06-21 01:52:00 +00:00
Chris Lattner
481746a193 remove #if 0 code 
llvm-svn: 73837
 2009-06-21 01:48:49 +00:00
Chris Lattner
5ef06d833d cosmetic changes. 
llvm-svn: 73836
 2009-06-21 01:27:55 +00:00