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6323 Commits

Author SHA1 Message Date
Devang Patel
434239cc4f Validate debug info values only if DwarfDebug is initialized. 
llvm-svn: 62298
 2009-01-16 02:15:14 +00:00
Devang Patel
befef54e67 Any debug info symbol is only valid if atleast one compile unit is seen. 
llvm-svn: 62294
 2009-01-16 01:49:46 +00:00
Dan Gohman
c5b1dbdb4e Initial hazard recognizer support in post-pass scheduling. This includes 
a new toy hazard recognizier heuristic which attempts to direct the
scheduler to avoid clumping large groups of loads or stores too densely.

llvm-svn: 62291
 2009-01-16 01:33:36 +00:00
Devang Patel
f0e1e4cc51 Do not stumble over forward declared struct member. 
llvm-svn: 62288
 2009-01-16 00:50:53 +00:00
Devang Patel
1ee58c7d8c Validate dbg_* intrinsics before lowering them. 
llvm-svn: 62286
 2009-01-15 23:41:32 +00:00
Mon P Wang
e235ba591f Added missing support to widen an operand from a bit convert. 
llvm-svn: 62285
 2009-01-15 22:43:38 +00:00
Dan Gohman
3e0dcbbd15 Generalize the HazardRecognizer interface so that it can be used 
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.

llvm-svn: 62284
 2009-01-15 22:18:12 +00:00
Dan Gohman
23a5f63b21 Simplify the MachineLICM pass by having it only traverse outer 
loops, hoisting instructions all the way out in one step rather
than hoisting them one nest level at a time. Also, make a few
other code simplifications. This speeds up MachineLICM
by several fold.

llvm-svn: 62283
 2009-01-15 22:01:38 +00:00
Rafael Espindola
0aba6c9435 Add the private linkage. 
llvm-svn: 62279
 2009-01-15 20:18:42 +00:00
Devang Patel
97d45c48c5 Use lightweight DebugInfo objects directly. 
llvm-svn: 62276
 2009-01-15 19:26:23 +00:00
Dan Gohman
6fcee67989 Move a few containers out of ScheduleDAGInstrs::BuildSchedGraph 
and into the ScheduleDAGInstrs class, so that they don't get
destructed and re-constructed for each block. This fixes a
compile-time hot spot in the post-pass scheduler.

To help facilitate this, tidy and do some minor reorganization
in the scheduler constructor functions.

llvm-svn: 62275
 2009-01-15 19:20:50 +00:00
Devang Patel
307fac7f3a Use variable's context to identify respective DbgScope. 
Use light weight DebugInfo object directly.

llvm-svn: 62269
 2009-01-15 18:25:17 +00:00
Dan Gohman
273ef2ab9f Make getWidenVectorType const; this file was missed in the 
previous commit.

llvm-svn: 62266
 2009-01-15 17:39:39 +00:00
Dan Gohman
791e6c24db More consts on TargetLowering references. 
llvm-svn: 62262
 2009-01-15 16:58:17 +00:00
Dan Gohman
9dd6a69768 Use const with TargetLowering references in a few more places. 
llvm-svn: 62260
 2009-01-15 16:43:02 +00:00
Gabor Greif
feac7ccdbd minor refactoring: use a more specific API 
llvm-svn: 62256
 2009-01-15 11:10:44 +00:00
Devang Patel
cf0db71b85 Do not construct debug scope if RootScope *is* null. 
llvm-svn: 62209
 2009-01-14 01:34:32 +00:00
Devang Patel
1da8253b35 Removoe MachineModuleInfo methods (and related DebugInfoDesc class hierarchy) that were used to handle debug info. 
llvm-svn: 62199
 2009-01-13 23:54:55 +00:00
Devang Patel
ba388f3905 Keep "has debug info" big in MachineModuleInfo to avoid circular dependency between AsmPrinter and CodeGen. 
llvm-svn: 62191
 2009-01-13 23:02:17 +00:00
Devang Patel
7a618394f6 Undo previous checkin. 
llvm-svn: 62190
 2009-01-13 22:54:57 +00:00
Devang Patel
e0f23e966d Use DwarfWriter to record dbg variables. 
llvm-svn: 62185
 2009-01-13 21:44:10 +00:00
Devang Patel
ab5ef6abf1 Use dwarf writer to decide whether the module has debug info or not. 
llvm-svn: 62184
 2009-01-13 21:25:00 +00:00
Dan Gohman
f94a4aba16 Use assertions to check for conditions that should never happen. 
llvm-svn: 62178
 2009-01-13 20:25:24 +00:00
Dan Gohman
9e9858781c The list-td and list-tdrr schedulers don't yet support physreg 
scheduling dependencies. Add assertion checks to help catch
this.

It appears the Mips target defaults to list-td, and it has a
regression test that uses a physreg dependence. Such code was
liable to be miscompiled, and now evokes an assertion failure.

llvm-svn: 62177
 2009-01-13 20:24:13 +00:00
Dan Gohman
c7fe713e72 Avoid referring to edge D after the Succs or Preds arrays have 
been modified, to avoid trouble in the (unlikely) scenario that
D is a reference to an element in one of those arrays.

llvm-svn: 62173
 2009-01-13 19:08:45 +00:00
Duncan Sands
975f2428ba When replacing uses and the same node is reached 
via two paths, process it once not twice, d'oh!
Analysis, testcase and original patch thanks to
Mon Ping Wang.

llvm-svn: 62169
 2009-01-13 15:17:14 +00:00
Duncan Sands
439d97a6cb Fix some typos. Also, the WidenedVectors map 
was not being cleaned by ExpungeNode.

llvm-svn: 62167
 2009-01-13 14:42:39 +00:00
Duncan Sands
8267463dec Correct a comment - this is not a sign extension. 
llvm-svn: 62166
 2009-01-13 14:04:14 +00:00
Evan Cheng
6fd76e738c Un-tabify. 
llvm-svn: 62151
 2009-01-13 06:08:37 +00:00
Evan Cheng
a706a020bc FIX llvm-gcc bootstrap on x86_64 linux. If a virtual register is copied to a physical register, it's not necessarily defined by a copy. We have to watch out it doesn't clobber any sub-register that might be live during its live interval. If the live interval crosses a basic block, then it's not safe to check with the less conservative check (by scanning uses and defs) because it's possible a sub-register might be live out of the block. 
llvm-svn: 62144
 2009-01-13 03:57:45 +00:00
Devang Patel
eed0505ed8 Use DebugInfo interface to lower dbg_* intrinsics. 
llvm-svn: 62127
 2009-01-13 00:35:13 +00:00
Devang Patel
13a43a3789 Start using DebugInfo API to emit debug info. 
llvm-svn: 62125
 2009-01-13 00:20:51 +00:00
Devang Patel
68ef0f4ecb Emit debug info, only if at least one compile unit is seen. 
llvm-svn: 62118
 2009-01-12 23:09:42 +00:00
Devang Patel
4379343f92 If multiple compile units are seen then emit them independently. In other words, do not force all DIEs into first, whatever it is, compile unit. 
Note, multiple compile unit support is not well tested (it did not work correctly until now anyway.)

llvm-svn: 62116
 2009-01-12 23:05:55 +00:00
Devang Patel
283436f4b9 Avoid cast<>, use light weith wrapper directly. 
llvm-svn: 62115
 2009-01-12 22:58:14 +00:00
Devang Patel
261d3cb2af Use SrcLineInfo from DwarfWriter. The MachineModuleInfo copy will disappear soon. 
llvm-svn: 62114
 2009-01-12 22:54:42 +00:00
Duncan Sands
bcdbfb63dc Rename getABITypeSize to getTypePaddedSize, as 
suggested by Chris.

llvm-svn: 62099
 2009-01-12 20:38:59 +00:00
Devang Patel
27f9c78c56 Add DwarfWriter interface to mainipulate source location info. 
( May be this info should be directly handled by the dwarf writer ? )

llvm-svn: 62096
 2009-01-12 19:17:34 +00:00
Devang Patel
149d412a0e Clear debug info at the end of function processing. 
llvm-svn: 62092
 2009-01-12 18:48:36 +00:00
Devang Patel
89a815941c There is no need to maintain separate labelid list in the dwarf writer. It is not a good idea. 
llvm-svn: 62090
 2009-01-12 18:41:00 +00:00
Evan Cheng
5e17ea36e1 Fix PR3241: Currently EmitCopyFromReg emits a copy from the physical register to a virtual register unless it requires an expensive cross class copy. That means we are only treating "expensive to copy" register dependency as physical register dependency. 
Also future proof the scheduler to handle "normal" physical register dependencies. The code is not exercised yet.

llvm-svn: 62074
 2009-01-12 03:19:55 +00:00
Owen Anderson
e6451daef4 More two-address fixes. This gets lua working with join-creation enabled. 
llvm-svn: 62073
 2009-01-12 03:10:40 +00:00
Evan Cheng
e280fcfbbc CheckForPhysRegDependency should not return copy cost. It's not used. No functionality change. 
llvm-svn: 62036
 2009-01-11 08:53:35 +00:00
Devang Patel
a350457725 Reduce initial small vector sizes. 
llvm-svn: 62023
 2009-01-10 02:42:49 +00:00
Devang Patel
77332761ef Fix thinko. Create parent scope if parent descriptor is *not* null. 
llvm-svn: 62022
 2009-01-10 02:34:18 +00:00
Evan Cheng
411c48b7d2 Duplicated node may produce a non-physical register def. 
llvm-svn: 62015
 2009-01-09 22:44:02 +00:00
Evan Cheng
7a918ea197 Minor debug output tweak. 
llvm-svn: 62005
 2009-01-09 20:42:34 +00:00
Devang Patel
7fd7643d23 Request DwarfWriter. This will be used to handle dbg_* intrinsics. 
llvm-svn: 61999
 2009-01-09 19:11:50 +00:00
Misha Brukman
71c7e40966 Removed trailing whitespace from Makefiles. 
llvm-svn: 61991
 2009-01-09 16:44:42 +00:00
Devang Patel
747d4b38ad Convert DwarfWriter into a pass. 
Now Users request DwarfWriter through getAnalysisUsage() instead of creating an instance of DwarfWriter object directly.

llvm-svn: 61955
 2009-01-08 23:40:34 +00:00