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Author SHA1 Message Date
Owen Anderson
38493be0ce Add a separate unrolling threshold when the current function is being optimized for size. 
The threshold value of 50 is arbitrary, and I chose it simply by analogy to the inlining thresholds, where
the baseline unrolling threshold is slightly smaller than the baseline inlining threshold.  This could
undoubtedly use some tuning.

llvm-svn: 113306
 2010-09-07 23:15:30 +00:00
John McCall
f1418ef333 Add documentation for llvm-diff. 
llvm-svn: 113303
 2010-09-07 23:10:21 +00:00
Jakob Stoklund Olesen
bd8da2d3ee Don't add <imp-def> operands during register rewriting. 
LiveIntervals already adds <imp-def> operands for super-registers when a subreg
def defines the whole register. Thus, it is not necessary to do it again when
rewriting.

In fact, the super-register imp-defs caused miscompilations because the late
scheduler couldn't see that the super-register was read.

We still add super-reg <imp-use,kill> operands when rewriting virtuals to
physicals.

llvm-svn: 113299
 2010-09-07 22:38:45 +00:00
Jim Grosbach
5d310ec4a5 To shrink a t2LDM instruction to the 16-bit wide tLDM instruction, the base 
register must be one of the destination registers for the load. Otherwise,
the tLDM instruction will write-back to the base register, which isn't what's
desired (otherwise, we'd have a t2LDM_UPD instead).

rdar://8394087

llvm-svn: 113297
 2010-09-07 22:30:53 +00:00
Devang Patel
acddbab1a5 remove these tests for now. 
llvm-svn: 113293
 2010-09-07 22:03:44 +00:00
Jim Grosbach
b40371d3bf grammar tweak 
llvm-svn: 113289
 2010-09-07 21:30:25 +00:00
Bill Wendling
aea333c247 Remove untrue comments. 
llvm-svn: 113287
 2010-09-07 21:07:59 +00:00
Bruno Cardoso Lopes
a4ca8c3ac5 Factor out some x86 vector shuffle rewriting and add comments about the direction the shuffle lowering is heading to 
llvm-svn: 113286
 2010-09-07 21:03:14 +00:00
Devang Patel
751d5ec40a There is no need to force target if the test is going to run on other x86 platforms. 
llvm-svn: 113285
 2010-09-07 20:59:09 +00:00
Owen Anderson
6c2af9f474 Remove dead code. ManagedCleanup is unused, and contained a serious bug in that 
the provided cleanup function is never actually called.

llvm-svn: 113284
 2010-09-07 20:53:39 +00:00
Owen Anderson
94ae132fc8 Fix PR7972, in which the PassRegistry was being leaked. As part of this, 
switch to using a ManagedStatic for the global PassRegistry instead of a
ManagedCleanup, and fix a destruction ordering bug this exposed.

llvm-svn: 113283
 2010-09-07 20:48:10 +00:00
Stuart Hastings
92dd0fd9ba Typo. Thanks to BillW for pointing it out! 
llvm-svn: 113281
 2010-09-07 20:39:07 +00:00
Dan Gohman
6d4356d31f Tidy up the getModRefInfo declarations. 
llvm-svn: 113275
 2010-09-07 20:37:47 +00:00
Bruno Cardoso Lopes
e33983dba9 Move code around to prepare for moving some of the logic together to another function 
llvm-svn: 113267
 2010-09-07 20:20:27 +00:00
Owen Anderson
7d56c30119 Properly initialize the pImpl member of PassRegistry to zero. 
llvm-svn: 113264
 2010-09-07 20:13:48 +00:00
Owen Anderson
f7efa840f0 Add doxygen comments for PassRegistry. 
llvm-svn: 113262
 2010-09-07 20:04:26 +00:00
Bill Wendling
9bb7ac566f Add an MVT::x86mmx type. It will take the place of all current MMX vector types. 
llvm-svn: 113261
 2010-09-07 20:03:56 +00:00
Chris Lattner
a58a97dafc Fix a serious performance regression introduced by r108687 on linux: 
turning (fptrunc (sqrt (fpext x))) -> (sqrtf x)  is great, but we have
to delete the original sqrt as well.  Not doing so causes us to do 
two sqrt's when building with -fmath-errno (the default on linux).

llvm-svn: 113260
 2010-09-07 20:01:38 +00:00
Evan Cheng
5a058ed2a0 Remove a dead comment. 
llvm-svn: 113259
 2010-09-07 20:01:10 +00:00
Chris Lattner
f2534b401f rename test. 
llvm-svn: 113257
 2010-09-07 19:57:06 +00:00
Chris Lattner
7b50cefea8 hopefully fix a problem building on cygwin-1.5 
llvm-svn: 113255
 2010-09-07 19:50:53 +00:00
Owen Anderson
e15120e561 Clean up some of the PassRegistry implementation, and pImpl-ize it to reduce #include clutter 
and exposing internal details.

llvm-svn: 113252
 2010-09-07 19:16:25 +00:00
Bill Wendling
601bbfe6e3 Fix whitespace, because I'm OCD. 
llvm-svn: 113250
 2010-09-07 18:49:14 +00:00
Stuart Hastings
f0d248515f Test case for r113248. Raar 8361341. 
llvm-svn: 113249
 2010-09-07 18:43:57 +00:00
Bruno Cardoso Lopes
21e1fc67c3 decouple MMX check from regular splat checks. Some refactoring is coming, and MMX should be left alone to be easily removed after moving to intrinsics 
llvm-svn: 113247
 2010-09-07 18:41:45 +00:00
Bruno Cardoso Lopes
dcc8690051 Remove now useless check, because the code can be matched below, no need to leave it for isel 
llvm-svn: 113242
 2010-09-07 18:29:03 +00:00
Dan Gohman
2625d9a286 Issue a #error if the host doesn't have an implementation for 
GetMainExecutable yet.

llvm-svn: 113240
 2010-09-07 18:26:49 +00:00
Bruno Cardoso Lopes
e6f7e4684d Minor change. Since the checks are equivalent, use isMMX 
llvm-svn: 113239
 2010-09-07 18:24:00 +00:00
Devang Patel
e9dcee0a69 Fix command line used to link these test cases. 
llvm-svn: 113237
 2010-09-07 18:17:56 +00:00
Nick Lewycky
95bce25477 Update configure for change to autoconf/configure.ac to add PTX backend. 
llvm-svn: 113236
 2010-09-07 18:14:42 +00:00
Nick Lewycky
cad1395824 Create PTX backend. Patch by Che-Liang Chiou! 
llvm-svn: 113235
 2010-09-07 18:14:24 +00:00
Dale Johannesen
8354cab2de Add patterns for MMX that use the new intrinsics. 
Enable palignr intrinsic.
These may need adjustment for a new VT in due course.

llvm-svn: 113233
 2010-09-07 18:10:56 +00:00
Devang Patel
ca974014e7 Reintroduce dbg-declare tests. 
llvm-svn: 113232
 2010-09-07 18:01:49 +00:00
Bruno Cardoso Lopes
92bb02f722 Remove unused target specific node 
llvm-svn: 113224
 2010-09-07 17:38:55 +00:00
Devang Patel
c1cdbbb6d5 Remove last three tests. I need to make them independent of my setup. 
llvm-svn: 113213
 2010-09-07 17:08:57 +00:00
Devang Patel
cb223026e6 Add a test case to check handling of dbg-declare during hybrid mode where we begin using fast-isel but switch back to DAG building at some point. 
llvm-svn: 113210
 2010-09-07 17:03:44 +00:00
Devang Patel
5b5dd1d32b Add a test case to check handling of dbg-declare by selection DAG builder. 
llvm-svn: 113209
 2010-09-07 16:56:35 +00:00
Devang Patel
bcdf6f20ac Add a test case to check handling of dbg-declare by fast-isel. 
llvm-svn: 113208
 2010-09-07 16:40:53 +00:00
Benjamin Kramer
32f7af702a Don't leak the old operand when transforming "sldt" into "sldtw". 
llvm-svn: 113200
 2010-09-07 14:40:58 +00:00
Chris Lattner
bdedd983a9 attempt to appease msvc 
llvm-svn: 113198
 2010-09-07 06:10:48 +00:00
Gabor Greif
cb72b44075 fix comment typos 
llvm-svn: 113197
 2010-09-07 06:06:06 +00:00
Nick Lewycky
9698dae1df Add completely hokey binary-and and binary-or operations to ConstantRange and 
teach LazyValueInfo to use them.

llvm-svn: 113196
 2010-09-07 05:39:02 +00:00
Nick Lewycky
8c155b346e Fix major bug in thunk detection. Also verify the calling convention. 
Switch from isWeakForLinker to mayBeOverridden which is more accurate.

Add more statistics and debugging info. Add comments. Move static function
outside anonymous namespace.

llvm-svn: 113190
 2010-09-07 01:42:10 +00:00
Chris Lattner
fd65cfd3eb add missing cmov aliases, this resolves rdar://8208499 
llvm-svn: 113189
 2010-09-07 00:05:45 +00:00
Chris Lattner
927dc7a5d2 remove duplicated entry 
llvm-svn: 113188
 2010-09-06 23:57:24 +00:00
Nick Lewycky
ca54f909d8 Add a new isSignWrappedSet() method to ConstantRange. 
Fix zeroExtend and signExtend to support empty sets, and to return the smallest
possible result set which contains the extension of each element in their
inputs. For example zext i8 [100, 10) to i16 is now [0, 256), not i16 [100, 10)
which contains 63446 members.

llvm-svn: 113187
 2010-09-06 23:52:49 +00:00
Chris Lattner
5a696fb3ca "sldt <mem>" is ambiguous in 64-bit mode, but should 
always be disambiguated as sldtw.  sldtw and sldtq with
a mem operands have the same effect, but sldtw is more
compact.  Force it to sldtw, resolving rdar://8017530

llvm-svn: 113186
 2010-09-06 23:51:44 +00:00
Chris Lattner
3377802111 fix rdar://8017621 - llvm-mc can't guess encoding for "push $(1000)" 
llvm-svn: 113184
 2010-09-06 23:40:56 +00:00
Chris Lattner
9f2c0da214 generalize my previous operand loc info hack. If the same operand 
is busted for all variants, report it as the location.  This allows
us to get the operand right for bugs like:

t.s:3:12: error: invalid operand for instruction
	outb %al, %gs
	          ^

Even though there are reg/imm and reg/reg forms of this instruction.

llvm-svn: 113183
 2010-09-06 23:37:39 +00:00
Chris Lattner
6ecbbff857 fix the operand constraints of the immediate form of in/out, 
allowing unsigned 8-bit operands.  This fixes rdar://8208481

llvm-svn: 113182
 2010-09-06 23:29:05 +00:00