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Author SHA1 Message Date
Bob Wilson
76f07543d9 Add a comment to describe LLVMMatchType. 
llvm-svn: 69313
 2009-04-16 21:46:42 +00:00
Eli Friedman
13e59b3c41 Fix for PR3944: make mem2reg O(N) instead of O(N^2) in the number of 
incoming edges for a block with many predecessors.

llvm-svn: 69312
 2009-04-16 21:40:28 +00:00
Dan Gohman
fa5d93b54c Handle a pointer type correctly in SCEVExpander::visitAddRecExpr. 
llvm-svn: 69310
 2009-04-16 21:34:54 +00:00
Dan Gohman
397a4671f0 In the list-burr's pseudo two-addr dependency heuristics, don't 
add dependencies on nodes with exactly one successor which is a
COPY_TO_REGCLASS node. In the case that the copy is coalesced
away, the dependence should be on the user of the copy, rather
than the copy itself.

llvm-svn: 69309
 2009-04-16 20:59:02 +00:00
Dan Gohman
2165510df6 Handle SUBREG_TO_REG instructions with the same heuristics 
as INSERT_SUBREG instructions in the list-burr scheduler.

llvm-svn: 69308
 2009-04-16 20:57:10 +00:00
Dan Gohman
99b21e5635 Fix a bug with inttoptr/ptrtoint casts where the pointer has a different 
size from the integer, requiring zero extension or truncation. Don't
create ZExtInsts with pointer types. This fixes a regression in
consumer-jpeg.

llvm-svn: 69307
 2009-04-16 19:25:55 +00:00
Devang Patel
d324ddbd7b Do not treat beginning of inlined scope as beginning of normal function scope if the location info is missing. 
Insetad of doing ...
if (inlined_subroutine && known_location)
  DW_TAG_inline_subroutine
else
  DW_TAG_subprogram

do

if (inlined_subroutine) {
 if (known_location)
   DW_TAG_inline_subroutine
} else {
 DW_TAG_subprogram
}

llvm-svn: 69300
 2009-04-16 17:55:30 +00:00
Dan Gohman
f2bec6720f Minor code simplifications. Don't attempt LSR on theoretical 
targets with pointers larger than 64 bits, due to the code not
yet being APInt clean.

llvm-svn: 69296
 2009-04-16 16:49:48 +00:00
Dan Gohman
67ad4ee457 LSR is no longer a GEP optimizer. It is now an IV expression 
optimizer, which just happen to frequently involve optimizing GEPs.

llvm-svn: 69295
 2009-04-16 16:46:01 +00:00
Dan Gohman
f7f9a14400 Fix SCEVExpander::visitSMaxExpr and SCEVExpander::visitUMaxExpr to 
not create ICmpInsts with operands of different types. This fixes
a regression in Applications/d/make_dparser.

llvm-svn: 69294
 2009-04-16 16:15:25 +00:00
Dan Gohman
1482541677 Teach SCEVExpander::InsertCastOfTo to avoid creating inttoptr-of-ptrtoint 
and ptrtoint-of-inttoptr expressions. This fixes a regression in 300.twolf.

llvm-svn: 69293
 2009-04-16 15:52:57 +00:00
Dan Gohman
b40c343360 Use ConstantExpr::getIntToPtr instead of SCEVExpander::InsertCastOfTo, 
since the operand is always a constant.

llvm-svn: 69291
 2009-04-16 15:48:38 +00:00
Dan Gohman
862f4743b8 Use a SCEV expression cast instead of immediately inserting a 
new instruction with SCEVExpander::InsertCastOfTo.

llvm-svn: 69290
 2009-04-16 15:47:35 +00:00
Devang Patel
6052d698f5 Record line number at the beginning of a func.start. 
This line was accidently lost yesterday.

llvm-svn: 69286
 2009-04-16 15:07:09 +00:00
Rafael Espindola
a07d1c3103 fix PR3995. A scale must be 1, 2, 4 or 8. 
llvm-svn: 69284
 2009-04-16 12:34:53 +00:00
Chris Lattner
1a7c8feff3 prove diagnostic -> group mapping information. 
llvm-svn: 69270
 2009-04-16 05:52:18 +00:00
Dan Gohman
98aa1d9693 Expand GEPs in ScalarEvolution expressions. SCEV expressions can now 
have pointer types, though in contrast to C pointer types, SCEV
addition is never implicitly scaled. This not only eliminates the
need for special code like IndVars' EliminatePointerRecurrence
and LSR's own GEP expansion code, it also does a better job because
it lets the normal optimizations handle pointer expressions just
like integer expressions.

Also, since LLVM IR GEPs can't directly index into multi-dimensional
VLAs, moving the GEP analysis out of client code and into the SCEV
framework makes it easier for clients to handle multi-dimensional
VLAs the same way as other arrays.

Some existing regression tests show improved optimization.
test/CodeGen/ARM/2007-03-13-InstrSched.ll in particular improved to
the point where if-conversion started kicking in; I turned it off
for this test to preserve the intent of the test.

llvm-svn: 69258
 2009-04-16 03:18:22 +00:00
Chris Lattner
3984f99025 encode subgroups into the clang .inc file. -Wall now works! 
llvm-svn: 69257
 2009-04-16 03:16:12 +00:00
Devang Patel
87488c2a88 In -fast mode do what FastISel does. 
This code could use some refactoring help!

llvm-svn: 69254
 2009-04-16 02:33:41 +00:00
Devang Patel
d9a9d5bdbb If FastISel is run and it has known DebugLoc then use it. 
llvm-svn: 69253
 2009-04-16 01:33:10 +00:00
Devang Patel
c6c6759194 If location where the function was inlined is not know then do not emit debug info describing inlinied region. 
llvm-svn: 69252
 2009-04-16 01:31:54 +00:00
Chris Lattner
1d21ddd345 start producing subgroup info. 
llvm-svn: 69249
 2009-04-16 00:53:25 +00:00
Dale Johannesen
040d118b17 Another testcase for IV shortening. 
llvm-svn: 69247
 2009-04-16 00:45:21 +00:00
Dale Johannesen
ab8b46beca Eliminate zext over (iv | const) or (signed iv), 
and sext over (iv | const), if a longer iv is
available.  Allow expressions to have more than
one zext/sext parent.  All from OpenSSL.

llvm-svn: 69241
 2009-04-15 23:31:51 +00:00
Chris Lattner
48fcc3fe58 make sure that empty diag groups get known by clang. 
llvm-svn: 69235
 2009-04-15 22:33:02 +00:00
Chris Lattner
265ef76440 implement support for writing out diagnostic group tables. 
llvm-svn: 69219
 2009-04-15 20:55:08 +00:00
Devang Patel
4a18de4193 s/RootDbgScope/FunctionDbgScope/g 
llvm-svn: 69216
 2009-04-15 20:41:31 +00:00
Dale Johannesen
98c9716c34 Eliminate zext over (iv & const) or ((iv+const)&const) 
if a longer iv is available.  These subscript forms are
not common; they're a bottleneck in OpenSSL.

llvm-svn: 69215
 2009-04-15 20:41:02 +00:00
Chris Lattner
1a1ffcb4a4 use UppercaseString instead of EmitAllCaps 
llvm-svn: 69213
 2009-04-15 20:16:12 +00:00
Chris Lattner
3ab2b0ca2b use escape string. 
llvm-svn: 69212
 2009-04-15 20:13:18 +00:00
Chris Lattner
b46ad5bbba teach EscapeString and UnescapeString to handle ". 
llvm-svn: 69211
 2009-04-15 20:12:52 +00:00
Devang Patel
21463f4a25 Add DISubprogram is not null check. 
This fixes test/CodeGen//2009-01-21-invalid-debug-info.m test case.

llvm-svn: 69210
 2009-04-15 20:11:08 +00:00
Dan Gohman
5555c4538b Generalize one of the SelectionDAG::ReplaceAllUsesWith overloads 
to support replacing a node with another that has a superset of
the result types. Use this instead of calling
ReplaceAllUsesOfValueWith for each value.

llvm-svn: 69209
 2009-04-15 20:06:30 +00:00
Chris Lattner
049e984de6 rename -gen-clang-diags-options -> -gen-clang-diag-groups 
llvm-svn: 69208
 2009-04-15 20:02:32 +00:00
Chris Lattner
01ad312099 move clang-specific makefile goop to clang makefile. 
llvm-svn: 69206
 2009-04-15 19:57:42 +00:00
Dan Gohman
38bc0faa22 Fix 80-column violations. 
llvm-svn: 69204
 2009-04-15 19:48:57 +00:00
Dan Gohman
a2ec3156eb Add a folding table entry for MOV8rr_NOREX. 
llvm-svn: 69203
 2009-04-15 19:48:28 +00:00
Devang Patel
d9d88a827d Check isInlinedSubroutine() before creating DW_TAG_inlined_subroutine. 
llvm-svn: 69202
 2009-04-15 19:42:57 +00:00
Dan Gohman
420019a18a Fix MachineInstr::getNumExplicitOperands to count 
variadic operands correctly. Patch by Jakob Stoklund Olesen!

llvm-svn: 69190
 2009-04-15 17:59:11 +00:00
Chris Lattner
c4bf4ef9cc don't infer diag class from parenting relations, make it an explicit field 
in the record.

llvm-svn: 69176
 2009-04-15 16:55:46 +00:00
Chris Lattner
9e2f6e304c include the default mapping in the clang diagnostic .inc files. 
llvm-svn: 69173
 2009-04-15 16:43:18 +00:00
Chris Lattner
03d5a78eca minor cleanups 
llvm-svn: 69152
 2009-04-15 06:26:49 +00:00
Nick Lewycky
e9597399f0 Limit the number of times we're willing to chase pointers. Removes an O(n^2) 
problem from instcombine.

llvm-svn: 69151
 2009-04-15 06:23:41 +00:00
Douglas Gregor
8965c485d7 Allow jumping to the end of a bitstream while reading 
llvm-svn: 69145
 2009-04-15 04:53:47 +00:00
Bill Wendling
4153589196 Check for alignment. 
llvm-svn: 69140
 2009-04-15 04:51:05 +00:00
Bill Wendling
1b271d471e More obsessive reformatting. Fixed some validation errors. 
llvm-svn: 69130
 2009-04-15 02:12:37 +00:00
Dan Gohman
a1eee28415 Don't use "protected:" in classes that aren't intended to be 
subclassed.

llvm-svn: 69129
 2009-04-15 01:47:03 +00:00
Dan Gohman
f023ab3fae Fix doxygen comment syntax. 
llvm-svn: 69128
 2009-04-15 01:44:07 +00:00
Dan Gohman
2b965abea4 Fix X86MachineFunctionInfo's doxygen comment. 
llvm-svn: 69127
 2009-04-15 01:20:18 +00:00
Dan Gohman
e1e53b379b Move MachineRegisterInfo::setRegClass out of line. 
llvm-svn: 69126
 2009-04-15 01:19:35 +00:00