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40837 Commits

Author SHA1 Message Date
Bob Wilson
2003bcfbd2 Expand ZERO_EXTEND operations for NEON vector types. 
Testcase from Nick Lewycky.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 01:45:52 +00:00
Dan Gohman
d2da32711d Revert r111321. This doesn't fix a problem. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 01:34:52 +00:00
Chris Lattner
5083912dd7 stomp some more undefined behavior, PR7775. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-18 00:33:47 +00:00
Chris Lattner
7942e3c412 include config.h to get config params, hopefully unbreaking mingw builder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111325 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:22:10 +00:00
Chris Lattner
93d81b697c Fix the rest of rdar://8318441 which happens when a raw_fd_ostream 
(e.g. errs()) fails in close() due to (e.g.) a broken pipe.  As
previously written, the had_error() flag would get set and then
the raw_ostream dtor would report a fatal error.  There is nothing
the client can do about this and we have no way to report the error,
so just eat it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111321 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:11:56 +00:00
Chris Lattner
73ebaff79f report_fatal_error can't use errs(), because errs() can call 
into report_fatal_error.  Just blast the string to stderr with write(2)
and hope for the best!  Part of rdar://8318441


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111320 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 23:03:53 +00:00
Eric Christopher
68c23f8616 Temporarily revert r110987 as it's causing some miscompares in 
vector heavy code.  I'll re-enable when we've tracked down the problem.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:55:27 +00:00
Dan Gohman
bbc1da8ded Tweak IVUsers' concept of "interesting" to exclude add recurrences 
where the step value is an induction variable from an outer loop, to
avoid trouble trying to re-expand such expressions. This effectively
hides such expressions from indvars and lsr, which prevents them
from getting into trouble.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:50:37 +00:00
Jim Grosbach
dc140c6e7b Add materialization of virtual base registers for frame indices allocated into 
the local block. Resolve references to those indices to a new base register.
For simplification and testing purposes, a new virtual base register is
allocated for each frame index being resolved. The result is truly horrible,
but correct, code that's good for exercising the new code paths.

Next up is adding thumb1 support, which should be very simple. Following that
will be adding base register re-use and implementing a reasonable ARM
heuristic for when a virtual base register should be generated at all.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111315 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:41:55 +00:00
Daniel Dunbar
ebe7eb884e CrashRecovery: Clear the current context on the first crash, to avoid re-entering it if the cleanup code crashes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:32:39 +00:00
Daniel Dunbar
a8fa798246 CrashRecovery: Add CrashRecoveryContext::GetCurrent(), so clients can find the active context from anywhere. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:32:37 +00:00
Daniel Dunbar
c0c815e887 CrashRecovery: Make CrashRecoveryContext static methods thread safe. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:32:34 +00:00
Dale Johannesen
6cf64a631a Make fast scheduler handle asm clobbers correctly. 
PR 7882.  Follows suggestion by Amaury Pouly, thanks.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 22:17:24 +00:00
Anton Korobeynikov
5dad73cec8 Revert part of one of the prev. patches - tailjmp will follow later. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 21:08:28 +00:00
Anton Korobeynikov
3a1e54a6b9 More fixes for win64: 
- Do not clobber al during variadic calls, this is AMD64 ABI-only feature
  - Emit wincall64, where necessary
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 21:06:07 +00:00
Anton Korobeynikov
e9df15e65c Enable more win64 calls folding opportunities. 
Patch by Cameron Esfahani!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 21:06:01 +00:00
Evan Cheng
148341cc9b PHI elimination shouldn't require machineloopinfo since it's used at -O0. Move the requirement to LiveIntervalAnalysis instead. Note this does not change the number of times machineloopinfo is computed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 21:00:37 +00:00
Evan Cheng
6542416560 Machine CSE preserves CFG. Pass manager was freeing machineloopinfo after machine cse before. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 20:57:42 +00:00
Jakob Stoklund Olesen
00d3dda86f Don't call tablegen'ed Predicate_* functions in the ARM target. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111277 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 20:39:04 +00:00
Jim Grosbach
8ae231a06c silence warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111274 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 20:21:30 +00:00
Benjamin Kramer
81cfb8529b Remove dead code. Fixes a GCC warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 19:45:05 +00:00
Jim Grosbach
c5ed0134a7 80 column cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111266 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 18:39:16 +00:00
Benjamin Kramer
e5b57347e9 Sketch i386 relocations handling, from Roman Divacky. 
Hello world builds & runs now on i386/ELF with -integrated-as.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111264 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 18:20:28 +00:00
Jakob Stoklund Olesen
4bb862d179 Don't call Predicate_* methods directly from Sparc target. 
Modernize predicates a bit.

The Predicate_* methods are not used by TableGen any longer. They are only
emitted for the sake of legacy code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111263 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 18:17:12 +00:00
Jim Grosbach
8708ead5a4 Add hook to examine an instruction referencing a frame index to determine 
whether to allocate a virtual frame base register to resolve the frame
index reference in it. Implement a simple version for ARM to aid debugging.

In LocalStackSlotAllocation, scan the function for frame index references
to local frame indices and ask the target whether to allocate virtual
frame base registers for any it encounters. Purely infrastructural for
debug output. Next step is to actually allocate base registers, then add
intelligent re-use of them.

rdar://8277890



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 18:13:53 +00:00
Jim Grosbach
3edb904927 explicitly handle no-op cases for clarity. Fixes clang warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 18:00:41 +00:00
Benjamin Kramer
299fbe3a5a Use the correct entry size for relocation entries, from Roman Divacky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:56:13 +00:00
Evan Cheng
e008384508 Move the decision logic whether it's a good idea to split a critical edge to clients. Also fixed an erroneous check. An edge is only a back edge when the from and to blocks are in the same loop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:43:50 +00:00
Dan Gohman
fc8042a122 When rotating loops, put the original header at the bottom of the 
loop, making the resulting loop significantly less ugly.  Also, zap
its trivial PHI nodes, since it's easy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:39:21 +00:00
Jim Grosbach
37e59c059c remove trailing whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:37:22 +00:00
Benjamin Kramer
377a572d9b Differentiate between RELA and REL relocations, from Roman Divacky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:30:07 +00:00
Bob Wilson
f955f290c9 Change ARM PKHTB and PKHBT instructions to use a shift_imm operand to avoid 
printing "lsl #0".  This fixes the remaining parts of pr7792.  Make
corresponding changes for encoding/decoding these instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:23:19 +00:00
Evan Cheng
087fbeb7d1 Fix debug message. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111250 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:15:14 +00:00
Dan Gohman
1c034dcbbc Use the getUniquePredecessor() utility function, instead of doing 
what it does manually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111248 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:07:02 +00:00
Benjamin Kramer
eb97677764 One baby step towards i386 ELF, from Roman Divacky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 17:02:29 +00:00
Chris Lattner
23e70ebf35 fix emacs language spec's, patch by Edmund Grimley-Evans! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111241 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 16:20:04 +00:00
Nick Lewycky
83a82ac0b4 When creating a JIT, try to load the program so that we can resolve symbols 
against it. This affects Windows.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111240 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 16:19:18 +00:00
Chris Lattner
6ccd0da0fe Fix failure of unittests/ExecutionEngine/JIT/MultiJITTest.cpp on 
cygwin when built with ENABLE_SHARED=1.  Patch by NAKAMURA Takumi!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111231 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 15:42:43 +00:00
Bob Wilson
7aaf5bf3db Allow more cases of undef shuffle indices and add tests for them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111226 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 05:54:34 +00:00
Evan Cheng
e1bcb440dc Add an option to disable codegen prepare critical edge splitting. In theory, PHI elimination is already doing all (most?) of the splitting needed. But machine-licm and machine-sink seem to miss some important optimizations when splitting is disabled. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 01:34:49 +00:00
Eric Christopher
44a2c3476b Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111223 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 01:30:33 +00:00
Eric Christopher
0fe7d54732 Copy over some overridden MI wrappers for ARM fast-isel. This is where 
we're adding predicates and optional defs to the MachineInstrs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111222 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 01:25:29 +00:00
Evan Cheng
97b9b97853 PHI elimination should not break back edge. It can cause some significant code placement issues. rdar://8263994 
good:
LBB0_2:
  mov     r2, r0
  . . .
  mov     r1, r2
  bne     LBB0_2

bad:
LBB0_2:
  mov     r2, r0
  . . .
@ BB#3:
  mov     r1, r2
  b       LBB0_2


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 01:20:36 +00:00
Eric Christopher
038fea5e30 Make arm fast-isel possible to enable via command line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111219 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 00:46:57 +00:00
Benjamin Kramer
172d7d6a12 Try to silence a overeager GCC warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111214 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 00:33:24 +00:00
Benjamin Kramer
368ae7e4ec A round of minor cleanups for ELFObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-17 00:00:46 +00:00
Owen Anderson
4bb3eafab5 Fix another iterator invalidation that caused a *really* nasty miscompilation in 403.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111210 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 23:42:33 +00:00
Bob Wilson
ca5e47d3f8 Ignore undef shuffle indices when checking for a VTRN shuffle. Radar 8290937. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111208 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 23:37:17 +00:00
Jim Grosbach
fecdea0bf7 tidy up. remove unused local. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 23:26:09 +00:00
Benjamin Kramer
1f8aa7bf08 Silence warnings and simplify code. Eliminate a 32/64 bit portability issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111201 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 23:00:12 +00:00
Dan Gohman
3620ff9a8b The plural of analysis is analyses. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111200 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 22:57:28 +00:00
Dan Gohman
65bffec2c2 Make dumpPassStructure be a PMDataManager abstraction, rather than 
a Pass abstraction, since that's the level it's actually used at.
Rename Pass' dumpPassStructure to dumpPass.

This eliminates an awkward use of getAsPass() to convert a PMDataManager*
into a Pass* just to permit a dumpPassStructure call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111199 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 22:45:12 +00:00
Jim Grosbach
4861ed60ac Better handle alignment requirements for local objects in pre-regalloc frame 
mapping. Have the local block track its alignment requirement, and then
apply that when the block itself is allocated. Previously, offsets could
get adjusted in PEI to be different, relative to one another, than the
block allocation thought they would be, which defeats the point of doing
the allocation this way. Continuing rdar://8277890

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 22:30:41 +00:00
Bob Wilson
dc66edaced Generalize a pattern for PKHTB: an SRL of 16-31 bits will guarantee 
that the high halfword is zero.  The shift need not be exactly 16 bits.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111196 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 22:26:55 +00:00
Dan Gohman
b85b31b300 Remove redundant inline keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111192 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 21:57:30 +00:00
Dan Gohman
7578ea887d Eliminate the TopLevelManagerType enum; instead, just make 
PMTopLevelManager's constructor take a PMDataManager *, which already
provides the needed abstraction support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 21:38:42 +00:00
Eli Friedman
bc1fb2b6fa Comment out some broken/unused/useless instructions which mess up disassembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 21:18:51 +00:00
Eli Friedman
a44fa2473a Fixes for generation of ELF relocations. Patch by Roman Divacky. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 21:17:09 +00:00
Eli Friedman
321473d51d Don't attempt to SimplifyShortMoveForm in 64-bit mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 21:03:32 +00:00
Eli Friedman
0b95fdbd6f Until uleb/sleb are MC-ized, add a hack to make them work with ELF object 
emission.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111177 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 20:08:40 +00:00
Eli Friedman
f8020a3978 Fix a few warnings in and detabify MCELFStreamer and ELFObjectWriter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111175 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 19:15:06 +00:00
Matt Fleming
3565a06ebf Add ELF ObjectWriter and Streamer support. 
I forgot to add these files in commit 111172.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111174 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:57:57 +00:00
Matt Fleming
453db50333 Hookup ELF support for X86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111173 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:36:14 +00:00
Matt Fleming
6b2e257e74 Add ELF ObjectWriter and Streamer support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111172 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:35:43 +00:00
Matt Fleming
a8bf473fb1 Layout helper function. 
Introduce a helper method to add a section to the end of a layout. This
will be used by the ELF ObjectWriter code to add the metadata sections
(symbol table, etc) to the end of an object file.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:35:06 +00:00
Matt Fleming
6c8b3d2f1f Record a symbol's size which is needed for ELF symbol tables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111170 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:34:31 +00:00
Bob Wilson
22f5dc79c0 Rename sat_shift operand to shift_imm, in preparation for using it for other 
instructions besides saturate instructions.  No functional changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:27:34 +00:00
Jakob Stoklund Olesen
de78f05cf7 Partially revert r111155. It looks like MSVC is calling an operator<() that 
clang says is unused.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111167 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:24:54 +00:00
Jim Grosbach
63249347c2 track local frame size in MFI, not local to the pass, since PEI needs it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 18:06:15 +00:00
Jakob Stoklund Olesen
5ba3e4d75d Remove unused functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111156 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 17:18:20 +00:00
Jakob Stoklund Olesen
a649ab542d Remove unused functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 17:18:18 +00:00
Bob Wilson
45cdd7fd61 Remove unused code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 17:06:03 +00:00
Dan Gohman
1895991a08 To create a copy of a SmallVector with an element removed from the 
middle, copy the elements in two groups, rather than copying all the
elements and then doing an erase on the middle of the result. These
are SmallVectors, so we shouldn't expect to hit dynamic allocation
in the common case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:57:24 +00:00
Chris Lattner
abf8f9cbb8 silence a vc2010 warning: " result of 32-bit shift implicitly converted to 
64 bits (was 64-bit shift intended?)", pointed out by 'nobled' on llvmdev


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111148 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:35:20 +00:00
Dan Gohman
0c5e95df57 Tidy whitespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:34:09 +00:00
Dan Gohman
619d3324bd Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:31:39 +00:00
Dan Gohman
8d9c7a6701 Use const_iterator in a few places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:30:01 +00:00
Dan Gohman
2d16fc5ff0 Use iterators instead of indices in a few more places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:27:53 +00:00
Dan Gohman
e28d7922f7 Micro-optimize SCEVConstant comparison. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:25:35 +00:00
Dan Gohman
2f199f9952 Move SCEVNAryExpr's virtual member functions out of line, and convert 
them to iterators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111140 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:21:27 +00:00
Dan Gohman
bb85409b51 Use iterators instead of indices in simple cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:16:11 +00:00
Dan Gohman
c4f77983d8 Avoid gratuitous inefficiency in ifndef NDEBUG code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111137 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:13:54 +00:00
Dan Gohman
d3f171d66f Make one getAddExpr call when analyzing a+b+c+d+e+... instead of one 
for each add instruction. Ditto for Mul.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111136 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 16:03:49 +00:00
Dan Gohman
57560da3f5 Delete an unused function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111135 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 15:57:14 +00:00
Dan Gohman
3e22b7c916 Instead of having CollectSubexpr's categorize operands as interesting or 
uninteresting, just put all the operands on one list and make
GenerateReassociations make the decision about what's interesting.
This is simpler, and it avoids an extra ScalarEvolution::getAddExpr call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 15:50:00 +00:00
Dan Gohman
4065f60912 Put add operands in ScalarEvolution-canonical order, when convenient. 
This isn't necessary, because ScalarEvolution sorts them anyway,
but it's tidier this way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 15:39:27 +00:00
Dan Gohman
3063410e52 Add hooks to FoldingSetTrait to allow specializations to provide 
implementations of equality comparison and hash computation. This
can be used to optimize node lookup by avoiding creating lots of
temporary ID values just for hashing and comparison purposes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 15:30:39 +00:00
Dan Gohman
6616f7e2f1 Reverse the order of GetNodeProfile's arguments, for consistency 
with FoldingSetTrait::Profile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 14:53:42 +00:00
Dan Gohman
ebd9923bd8 Avoid #include <ScalarEvolution.h> in LoopSimplify.cpp, which doesn't 
actually use ScalarEvolution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111124 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 14:44:03 +00:00
Dan Gohman
7a4994356b Instead, teach SimplifyCFG to trim non-address-taken blocks from 
indirectbr destination lists.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111122 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 14:41:14 +00:00
Dan Gohman
9883b95a2b Revert r111058, the lint check for indirectbr successors that aren't 
address-taken. This can occur normally, if the code which took the
address got DCEd.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-16 14:39:19 +00:00
Argyrios Kyrtzidis
8c8b9ee8c8 Revert r111082. No warnings for this common pattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111102 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-15 10:27:23 +00:00
Mikhail Glushenkov
b3d36293c2 llvmc: remove dynamic plugins. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111094 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-15 07:07:12 +00:00
Eric Christopher
c0b2a2018a Rework how the non-sse2 memory barrier is lowered so that the 
encoding is correct for the built-in assembler.

Based on a patch from Chris.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111083 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 21:51:50 +00:00
Argyrios Kyrtzidis
7268d97ae6 Add ATTRIBUTE_UNUSED to methods that are not supposed to be used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111082 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 21:35:10 +00:00
Chris Lattner
132929aa9e improve indentation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111073 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 17:26:09 +00:00
Bob Wilson
136e491280 T2I_rbin_irs rr variant is for disassembly only, so don't provide a pattern. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111068 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 03:18:29 +00:00
Ted Kremenek
865287de4a Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111063 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 01:55:09 +00:00
Dan Gohman
c2f40066bb LoopSimplify shouldn't split loop backedges that use indirectbr. PR7867. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 00:43:09 +00:00
Dan Gohman
e2c6d131d1 Teach SimplifyCFG how to simplify indirectbr instructions. 
- Eliminate redundant successors.
 - Convert an indirectbr with one successor into a direct branch.

Also, generalize SimplifyCFG to be able to be run on a function entry block.
It knows quite a few simplifications which are applicable to the entry
block, and it only needs a few checks to avoid trouble with the entry block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111060 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-14 00:29:42 +00:00