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Author SHA1 Message Date
Dan Gohman
8554449e31 Fix the check for an empty basic block to check for an empty SUnits 
array instead, since this is what the scheduler actually cares about.
And remove a check that is unnecessary, since it can assume that
SUnits isn't empty.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62362 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 21:37:14 +00:00
Dan Gohman
febf71db2d Avoid triggering an assertion failure when an instruction pattern 
is a leaf node. Patch by Brandner!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62361 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 21:30:55 +00:00
Chris Lattner
df874eed56 new nodes should be added to the worklist, not old nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62359 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 21:15:56 +00:00
Devang Patel
07354e532b Fix comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62358 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 21:07:53 +00:00
Evan Cheng
e57187cbe3 CreateVirtualRegisters does trivial copy coalescing. If a node def is used by a single CopyToReg, it reuses the virtual register assigned to the CopyToReg. This won't work for SDNode that is a clone or is itself cloned. Disable this optimization for those nodes or it can end up with non-SSA machine instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62356 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 20:57:18 +00:00
Chris Lattner
a21a8607e4 remove a dead method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62354 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 20:26:53 +00:00
Chris Lattner
9029cb8363 don't assert and die on out of range (undefined) shifts. This fixes 
PR3334.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62352 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 20:17:02 +00:00
Chris Lattner
71759c491c Fix PR3335 by not turning a store to one address space into a store to another. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62351 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 20:12:52 +00:00
Chris Lattner
1b8eaf5109 reduce indentation by using early exits, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62350 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 20:08:59 +00:00
Devang Patel
99ec3538b8 Use lightweight DebugInfo objects directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62341 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 19:28:14 +00:00
Bill Wendling
64e87326d9 Add support for non-zero __builtin_return_address values on X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62338 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 19:25:27 +00:00
Evan Cheng
4d544a2c80 Change isGVCompilationDisabled() semantics again. It should abort on any GV that's not constant whether it's "internal" or not. In a server / client environment, GV is returned in the same block of memory as code. However, the memory might not be writable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62336 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 19:14:49 +00:00
Gabor Greif
75a46eb800 use specialized accessor instead of plain getOperand(0) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62330 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 18:40:27 +00:00
Devang Patel
7103c6a993 Align source code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62328 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 18:01:58 +00:00
Dan Gohman
79ce4cea47 Fix a "comparison between signed and unsigned integer expressions" 
warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62327 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 17:55:08 +00:00
Nick Lewycky
d1f5fabd15 Reinstate r60509 from Dale: 
Make the debugging dump be a full line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62325 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 17:07:22 +00:00
Duncan Sands
6ea5776f51 Get this building with gcc-4.4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62322 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 15:54:57 +00:00
Duncan Sands
81d05c2ae2 Grammar fix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62319 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 09:29:46 +00:00
Mikhail Glushenkov
2388a588bd Registry.h should not depend on CommandLine.h. 
Split Support/Registry.h into two files so that we have less to
recompile every time CommandLine.h is changed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62312 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 07:02:28 +00:00
Evan Cheng
0b9d9970f0 This is now passing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62308 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 06:59:14 +00:00
Mikhail Glushenkov
5c1799b293 Delete trailing whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62307 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 06:53:46 +00:00
Sanjiv Gupta
a10f15949d Reverting back 62301. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62304 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 05:06:35 +00:00
Sanjiv Gupta
65aae006bf Few targets do not have a single directive to emit global constants. 
For example, PIC16 needs to break a long or int constant into mulitple parts and emit multiple directives. So Allow targets to overried EmitConstantValueOnly().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62301 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 02:45:46 +00:00
Evan Cheng
bdfc582edf ARMCompilationCallback should not save / restore vfp registers if vfp is not available. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62299 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 02:16:37 +00:00
Devang Patel
5be935536f Validate debug info values only if DwarfDebug is initialized. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62298 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 02:15:14 +00:00
Evan Cheng
4e56ab2cf4 Clean up previous cast optimization a bit. Also make zext elimination a bit more aggressive: if it's not necessary to emit an AND (i.e. high bits are already zero), it's profitable to evaluate the operand at a different type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62297 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 02:11:43 +00:00
Dan Gohman
05aae18165 Add support for instructions with multiple ComplexPatterns, by 
adding more information to the temporary variables names so that
they don't conflict.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62296 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 02:05:52 +00:00
Devang Patel
61c6bf37ef Any debug info symbol is only valid if atleast one compile unit is seen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62294 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 01:49:46 +00:00
Dan Gohman
2836c283bb 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62291 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 01:33:36 +00:00
Devang Patel
153745cc1f Do not stumble over forward declared struct member. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62288 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-16 00:50:53 +00:00
Devang Patel
cf3a4487c0 Validate dbg_* intrinsics before lowering them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62286 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 23:41:32 +00:00
Mon P Wang
fa9c5eac33 Added missing support to widen an operand from a bit convert. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62285 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 22:43:38 +00:00
Dan Gohman
fc54c55296 Generalize the HazardRecognizer interface so that it can be used 
to support MachineInstr-based scheduling in addition to
SDNode-based scheduling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62284 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 22:18:12 +00:00
Dan Gohman
c475c3608a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62283 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 22:01:38 +00:00
Rafael Espindola
19caec79f2 Fix Alpha test and support for private linkage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62282 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 21:51:46 +00:00
Mon P Wang
f0fcdd8e26 Expand insert/extract of a <4 x i32> with a variable index. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62281 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 21:10:20 +00:00
Rafael Espindola
bb46f52027 Add the private linkage. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62279 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 20:18:42 +00:00
Devang Patel
f193ff0590 Use lightweight DebugInfo objects directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62276 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 19:26:23 +00:00
Dan Gohman
79ce276083 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62275 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 19:20:50 +00:00
Nuno Lopes
6ad2b2a3d2 add comment to explain my previous commit, as asked by Chris 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62272 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 18:40:57 +00:00
Gabor Greif
c478e52bf4 avoid using iterators when they get invalidated potentially 
this fixes PR3332

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62271 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 18:40:09 +00:00
Devang Patel
0e5200f3fd Use variable's context to identify respective DbgScope. 
Use light weight DebugInfo object directly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62269 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 18:25:17 +00:00
Dan Gohman
41b762a75e Add load-folding table entries for BT*ri8 instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62267 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 17:57:09 +00:00
Dan Gohman
65b7f27bb7 Make getWidenVectorType const; this file was missed in the 
previous commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62266 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 17:39:39 +00:00
Dan Gohman
c13cf130c4 Make getWidenVectorType const. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62265 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 17:34:08 +00:00
Evan Cheng
661d9c35b0 Eliminate a redundant check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62264 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 17:09:07 +00:00
Evan Cheng
f35fd547ac - Teach CanEvaluateInDifferentType of this xform: sext (zext ty1), ty2 -> zext ty2 
- Looking at the number of sign bits of the a sext instruction to determine  whether new trunc + sext pair should be added when its source is being evaluated in a different type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62263 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 17:01:23 +00:00
Dan Gohman
e9530ecae4 More consts on TargetLowering references. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62262 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 16:58:17 +00:00
Dan Gohman
0d137d7f35 Use const with TargetLowering references in a few more places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62260 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 16:43:02 +00:00
Dan Gohman
73e0914848 Const-qualify getPreIndexedAddressParts and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62259 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-01-15 16:29:45 +00:00