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Author SHA1 Message Date
Cameron Zwarich
90efa03e8b Fix a crasher introduced by r127317 that is seen on the bots when using an 
alloca as both integer and floating-point vectors of the same size. Bugpoint is
not cooperating with me, but I'll try to find a manual testcase tomorrow.

llvm-svn: 127320
 2011-03-09 07:34:11 +00:00
Nick Lewycky
485af203fc Add another micro-optimization. Apologies for the lack of refactoring, but I 
gave up when I realized I couldn't come up with a good name for what the
refactored function would be, to describe what it does.

This is PR9343 test12, which is test3 with arguments reordered. Whoops!

llvm-svn: 127318
 2011-03-09 06:26:03 +00:00
Cameron Zwarich
e0b4705b03 Add support to scalar replacement for partial vector accesses of an alloca, e.g. 
a union of a float, <2 x float>, and <4 x float>. This mostly comes up with the
use of vector intrinsics, especially in NEON when programmers know the layout of
the register file. This enables codegen to eliminate a lot of the subregister
traffic it would otherwise generate.

This commit only enables this for a small number of floating-point cases, but a
lot more integer cases. I assume this is okay for all ports, but I did not do
extensive testing of the quality of code involving i512 vectors and the like. If
there is a use case where this generates worse code than before, let me know and
we can scale it back.

This fixes <rdar://problem/9036264>.

llvm-svn: 127317
 2011-03-09 05:43:05 +00:00
Cameron Zwarich
e80c47f295 Move vector type merging to a separate function in preparation for it getting 
more complicated.

llvm-svn: 127316
 2011-03-09 05:43:01 +00:00
Stuart Hastings
6147bc81c3 Add a RUN line to the test case to make it functional. <rdar://problem/9055247> 
llvm-svn: 127312
 2011-03-09 04:02:40 +00:00
Matt Beaumont-Gay
3e3b6cc819 Add a virtual dtor to Delegate to silence -Wnon-virtual-dtor 
llvm-svn: 127311
 2011-03-09 04:02:15 +00:00
Stuart Hastings
59f1daeb32 Test cases for r127309. <rdar://problem/9055247> 
llvm-svn: 127310
 2011-03-09 03:59:52 +00:00
Bill Wendling
bb2661c5cc Build bots hate me. 
llvm-svn: 127307
 2011-03-09 01:37:39 +00:00
Eli Friedman
50311331a7 PR9346: Prevent SimplifyDemandedBits from incorrectly introducing 
INT_MIN % -1.

llvm-svn: 127306
 2011-03-09 01:28:35 +00:00
Bill Wendling
613c8c2fd4 Testcase for r127301. 
llvm-svn: 127304
 2011-03-09 01:05:00 +00:00
Jakob Stoklund Olesen
eec325fc2f Add a LiveRangeEdit::Delegate protocol. 
This will we used for keeping register allocator data structures up to date
while LiveRangeEdit is trimming live intervals.

llvm-svn: 127300
 2011-03-09 00:57:29 +00:00
Eli Friedman
d1e9ff0d6c PR9420; an instruction before an unreachable is guaranteed not to have any 
reachable uses, but there still might be uses in dead blocks.  Use the
standard solution of replacing all the uses with undef.  This is
a rare case because it's very sensitive to phase ordering in SimplifyCFG.

llvm-svn: 127299
 2011-03-09 00:48:33 +00:00
Eric Christopher
3ffd0d2f15 Fix testcase. 
llvm-svn: 127298
 2011-03-09 00:41:41 +00:00
Bill Wendling
68934338ab * Correct encoding for VSRI. 
* Add tests for VSRI and VSLI.

llvm-svn: 127297
 2011-03-09 00:33:17 +00:00
Jakob Stoklund Olesen
7905ed6549 Delete dead code. 
llvm-svn: 127295
 2011-03-09 00:07:39 +00:00
Bill Wendling
b790c462c0 Correct the encoding for VRSRA and VSRA instructions. 
llvm-svn: 127294
 2011-03-09 00:00:35 +00:00
Bill Wendling
ab9f04b6d8 * Fix VRSHR and VSHR to have the correct encoding for the immediate. 
* Update the NEON shift instruction test to expect what 'as' produces.

llvm-svn: 127293
 2011-03-08 23:48:09 +00:00
Jakob Stoklund Olesen
b8f5f15468 Delete dead code after rematerializing. 
LiveRangeEdit::eliminateDeadDefs() will eventually be used by coalescing,
splitting, and spilling for dead code elimination. It can delete chains of dead
instructions as long as there are no dependency loops.

llvm-svn: 127287
 2011-03-08 22:46:11 +00:00
Devang Patel
2f204229ef llvm.dbg.declare intrinsic does not use any llvm::Values. It's magic! 
llvm-svn: 127282
 2011-03-08 22:12:11 +00:00
Stuart Hastings
5687e4d065 Reverting testcase at 4126896; r126672 broke something else. <rdar://problem/9055247> 
llvm-svn: 127278
 2011-03-08 21:54:17 +00:00
Bill Wendling
72b82228cd Once again try to appease the buildbot gods. 
llvm-svn: 127272
 2011-03-08 21:36:29 +00:00
Benjamin Kramer
c3944efb6f Strip cruft. 
llvm-svn: 127269
 2011-03-08 20:19:10 +00:00
Eric Christopher
1be4747d53 Add a testcase for r127263. 
llvm-svn: 127266
 2011-03-08 19:49:15 +00:00
Bill Wendling
75b38b9d40 Try to fix the compilation error due to type incombatibility. 
llvm-svn: 127265
 2011-03-08 19:39:35 +00:00
Jakob Stoklund Olesen
b7aa589217 Fix the build for MSVC 9 whose upper_bound() wants to compare elements in the sorted array. 
Patch by Olaf Krzikalla!

llvm-svn: 127264
 2011-03-08 19:37:54 +00:00
Eric Christopher
d3c7e834e8 Fix some latent bugs if the nodes are unschedulable. We'd gotten away 
with this before since none of the register tracking or nightly tests
had unschedulable nodes.

This should probably be refixed with a special default Node that just
returns some "don't touch me" values.

Fixes PR9427

llvm-svn: 127263
 2011-03-08 19:35:47 +00:00
Stuart Hastings
f4420e43f1 Stop building PPC parts on OSX. Radar 8637926. 
llvm-svn: 127262
 2011-03-08 19:28:28 +00:00
Oscar Fuentes
3faa2722ef Revert "Make a comparator's argument `const'. This fixes the build for 
MSVC 9."

The "fix" was meaningless.

This reverts commit r127245.

llvm-svn: 127260
 2011-03-08 19:26:21 +00:00
Jim Grosbach
bdf8053571 Darwin 'as' silently ignores the '.ident' directive. 
llvm-svn: 127258
 2011-03-08 19:17:19 +00:00
John McCall
7ae7882159 Typo. Patch by arrowdodger. 
llvm-svn: 127256
 2011-03-08 18:01:22 +00:00
Benjamin Kramer
872abcc8a9 Reduce vector reallocations. 
llvm-svn: 127254
 2011-03-08 17:28:36 +00:00
Chris Lattner
ea7b7189f5 fix incorrect comment. 
llvm-svn: 127252
 2011-03-08 16:59:03 +00:00
Devang Patel
8108b711d9 Since last couple of days, argument number is encoded using 8 bits from line number field in argument's debug info. 
llvm-svn: 127250
 2011-03-08 16:29:40 +00:00
Devang Patel
21033e45be Update DILexicalBlock doc to mention new fields. 
llvm-svn: 127249
 2011-03-08 16:25:29 +00:00
Benjamin Kramer
d5782492c8 X86: Fix the (saddo/ssub x, 1) -> incl/decl selection to check the right operand for 1. 
Found by inspection.

llvm-svn: 127247
 2011-03-08 15:20:20 +00:00
Justin Holewinski
d7426856e9 PTX: Add intrinsic support for ntid, ctaid, and nctaid registers 
llvm-svn: 127246
 2011-03-08 14:10:18 +00:00
Oscar Fuentes
27fc386e64 Make a comparator's argument `const'. This fixes the build for MSVC 9. 
llvm-svn: 127245
 2011-03-08 13:52:07 +00:00
Oscar Fuentes
2743931876 Remove remnant of my experimentation with CMake. 
llvm-svn: 127244
 2011-03-08 13:30:52 +00:00
Duncan Sands
41075b3ffb Fix PR9331. Simplified version of a patch by Jakub Staszak. 
llvm-svn: 127243
 2011-03-08 12:39:03 +00:00
NAKAMURA Takumi
e2f4b8d70e lib/Support/regcomp.c: Fix cygwin warning. 
llvm-svn: 127241
 2011-03-08 12:25:29 +00:00
NAKAMURA Takumi
c989c9adfa Use $(ECHOPATH) to make llvm-lit from llvm-lit.in. 
llvm-svn: 127240
 2011-03-08 12:25:19 +00:00
NAKAMURA Takumi
16a2bf5caf Reapply r127073(partially): Introduce $(ECHOPATH) to print DOSish path string on MSYS bash for alternative of $(ECHO). 
On mingw and python/w32, lit would not be expected to understand MSYS-style path.

llvm-svn: 127239
 2011-03-08 12:25:10 +00:00
Bill Wendling
758fb90678 Testcase for r127187. 
llvm-svn: 127236
 2011-03-08 10:27:58 +00:00
Bill Wendling
db6712f416 Don't show commands. 
llvm-svn: 127224
 2011-03-08 08:34:49 +00:00
Nick Lewycky
dbc555b13b Reorder comments to put them the right way around. 
llvm-svn: 127220
 2011-03-08 06:29:47 +00:00
Devang Patel
c4e4244654 While sinking an instruction, do not lose llvm.dbg.value intrinsic. 
llvm-svn: 127214
 2011-03-08 03:06:19 +00:00
Bill Wendling
f93e7d6c17 Change the next release number to 3.0svn. 
llvm-svn: 127213
 2011-03-08 03:00:02 +00:00
Bill Wendling
0e4923ebe5 A few more tests for instruction encodings. 
llvm-svn: 127209
 2011-03-08 02:51:48 +00:00
Eric Christopher
72d7cc25f3 Turn on list-ilp scheduling by default on x86 and x86-64, fix up 
testcases accordingly. Some are currently xfailed and will be filed
as bugs to be fixed or understood.

Performance results:

roughly neutral on SPEC
some micro benchmarks in the llvm suite are up between 100 and 150%, only
a pair of regressions that are due to be investigated

john-the-ripper saw:
10% improvement in traditional DES
8% improvement in BSDI DES
59% improvement in FreeBSD MD5
67% improvement in OpenBSD Blowfish
14% improvement in LM DES

Small compile time impact.

llvm-svn: 127208
 2011-03-08 02:42:25 +00:00
Andrew Trick
fd853e8757 Further improvements to pre-RA-sched=list-ilp. 
This change uses the MaxReorderWindow for both height and depth, which
tends to limit the negative effects of high register pressure.

llvm-svn: 127203
 2011-03-08 01:51:56 +00:00