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Author SHA1 Message Date
Jakob Stoklund Olesen
74db02758b 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.

llvm-svn: 111263
 2010-08-17 18:17:12 +00:00
Jim Grosbach
4597437c58 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

llvm-svn: 111262
 2010-08-17 18:13:53 +00:00
Jim Grosbach
b321adf3af explicitly handle no-op cases for clarity. Fixes clang warning. 
llvm-svn: 111260
 2010-08-17 18:00:41 +00:00
Benjamin Kramer
3bc7de0605 Use the correct entry size for relocation entries, from Roman Divacky. 
llvm-svn: 111259
 2010-08-17 17:56:13 +00:00
Evan Cheng
4223d274ca 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. 
llvm-svn: 111256
 2010-08-17 17:43:50 +00:00
Dan Gohman
e26025ddd0 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.

llvm-svn: 111255
 2010-08-17 17:39:21 +00:00
Jim Grosbach
4cf3acbde6 remove trailing whitespace 
llvm-svn: 111254
 2010-08-17 17:37:22 +00:00
Benjamin Kramer
cc741eccfa Differentiate between RELA and REL relocations, from Roman Divacky. 
llvm-svn: 111252
 2010-08-17 17:30:07 +00:00
Bob Wilson
e382fce916 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.

llvm-svn: 111251
 2010-08-17 17:23:19 +00:00
Evan Cheng
677a57e76a Fix debug message. 
llvm-svn: 111250
 2010-08-17 17:15:14 +00:00
Chris Lattner
c61aa15b46 add some  's to a pre to avoid newlines being eaten 
and the formatting being thrown off.  I admit to not knowing
what is going on here.

llvm-svn: 111249
 2010-08-17 17:13:42 +00:00
Dan Gohman
aec27f6889 Use the getUniquePredecessor() utility function, instead of doing 
what it does manually.

llvm-svn: 111248
 2010-08-17 17:07:02 +00:00
Benjamin Kramer
2bf444b7d4 One baby step towards i386 ELF, from Roman Divacky. 
llvm-svn: 111247
 2010-08-17 17:02:29 +00:00
Chris Lattner
a556264e06 fix emacs language spec's, patch by Edmund Grimley-Evans! 
llvm-svn: 111241
 2010-08-17 16:20:04 +00:00
Nick Lewycky
510dd18c6f When creating a JIT, try to load the program so that we can resolve symbols 
against it. This affects Windows.

llvm-svn: 111240
 2010-08-17 16:19:18 +00:00
Benjamin Kramer
3a071817da Revert r111230, we have to find a better place for the host-specific code. 
llvm-svn: 111232
 2010-08-17 15:50:23 +00:00
Chris Lattner
f403684a4d Fix failure of unittests/ExecutionEngine/JIT/MultiJITTest.cpp on 
cygwin when built with ENABLE_SHARED=1.  Patch by NAKAMURA Takumi!

llvm-svn: 111231
 2010-08-17 15:42:43 +00:00
Benjamin Kramer
387a736204 Micro-optimize MCObjectWriter to do a byteswap if necessary and then write the 
whole integer to the stream instead of doing byte-sized writes.

llvm-svn: 111230
 2010-08-17 13:55:45 +00:00
Benjamin Kramer
1b8bcfbc98 There is this new "LLVM" compiler that supports __builtin_bswap but thinks it's gcc 4.2. 
llvm-svn: 111228
 2010-08-17 11:45:38 +00:00
Bob Wilson
6239dc42c6 Allow more cases of undef shuffle indices and add tests for them. 
llvm-svn: 111226
 2010-08-17 05:54:34 +00:00
Evan Cheng
908b65c371 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. 
llvm-svn: 111224
 2010-08-17 01:34:49 +00:00
Eric Christopher
2bf87a1c77 Fix typo. 
llvm-svn: 111223
 2010-08-17 01:30:33 +00:00
Eric Christopher
9a8050c4e1 Copy over some overridden MI wrappers for ARM fast-isel. This is where 
we're adding predicates and optional defs to the MachineInstrs.

llvm-svn: 111222
 2010-08-17 01:25:29 +00:00
Evan Cheng
0163d059e4 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

llvm-svn: 111221
 2010-08-17 01:20:36 +00:00
Eric Christopher
7e10a7fd22 Remove predicate workaround, we're going to require that predicate 
and optional def operands are handled in the backend support.

llvm-svn: 111220
 2010-08-17 01:18:37 +00:00
Eric Christopher
8a68f2fc40 Make arm fast-isel possible to enable via command line. 
llvm-svn: 111219
 2010-08-17 00:46:57 +00:00
Benjamin Kramer
3acf387e2d Try to silence a overeager GCC warning. 
llvm-svn: 111214
 2010-08-17 00:33:24 +00:00
Benjamin Kramer
41deb334b5 A round of minor cleanups for ELFObjectWriter. 
llvm-svn: 111213
 2010-08-17 00:00:46 +00:00
Bob Wilson
2c5e6a9214 Add a testcase for svn 111208. 
llvm-svn: 111212
 2010-08-16 23:44:29 +00:00
Owen Anderson
803f9320fa Fix another iterator invalidation that caused a *really* nasty miscompilation in 403.gcc. 
llvm-svn: 111210
 2010-08-16 23:42:33 +00:00
Bob Wilson
1e40f2351c Ignore undef shuffle indices when checking for a VTRN shuffle. Radar 8290937. 
llvm-svn: 111208
 2010-08-16 23:37:17 +00:00
Jim Grosbach
9e252e854d tidy up. remove unused local. 
llvm-svn: 111206
 2010-08-16 23:26:09 +00:00
Benjamin Kramer
70e0faed21 Silence warnings and simplify code. Eliminate a 32/64 bit portability issue. 
llvm-svn: 111201
 2010-08-16 23:00:12 +00:00
Dan Gohman
72106f71dc The plural of analysis is analyses. 
llvm-svn: 111200
 2010-08-16 22:57:28 +00:00
Dan Gohman
b09e2e1be4 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.

llvm-svn: 111199
 2010-08-16 22:45:12 +00:00
Jim Grosbach
ea414d3999 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

llvm-svn: 111197
 2010-08-16 22:30:41 +00:00
Bob Wilson
d662e8cd02 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.

llvm-svn: 111196
 2010-08-16 22:26:55 +00:00
Bob Wilson
b776a55df5 Convert test to FileCheck. 
llvm-svn: 111195
 2010-08-16 22:21:13 +00:00
Dan Gohman
6bc71a2a20 Make some of PMTopLevelManager's members non-public. In particular, 
make its constructor protected.

llvm-svn: 111193
 2010-08-16 22:03:47 +00:00
Dan Gohman
dfd828dd87 Remove redundant inline keywords. 
llvm-svn: 111192
 2010-08-16 21:57:30 +00:00
Dan Gohman
05fbd723d5 Eliminate the TopLevelManagerType enum; instead, just make 
PMTopLevelManager's constructor take a PMDataManager *, which already
provides the needed abstraction support.

llvm-svn: 111189
 2010-08-16 21:38:42 +00:00
Eli Friedman
515b81a494 Comment out some broken/unused/useless instructions which mess up disassembly. 
llvm-svn: 111185
 2010-08-16 21:18:51 +00:00
Eli Friedman
39484fda25 Fixes for generation of ELF relocations. Patch by Roman Divacky. 
llvm-svn: 111183
 2010-08-16 21:17:09 +00:00
Eli Friedman
b9707bb261 Don't attempt to SimplifyShortMoveForm in 64-bit mode. 
llvm-svn: 111182
 2010-08-16 21:03:32 +00:00
Eli Friedman
fb8b05726f Until uleb/sleb are MC-ized, add a hack to make them work with ELF object 
emission.

llvm-svn: 111177
 2010-08-16 20:08:40 +00:00
Eli Friedman
d2c0d2d0bb Fix a few warnings in and detabify MCELFStreamer and ELFObjectWriter. 
llvm-svn: 111175
 2010-08-16 19:15:06 +00:00
Matt Fleming
8183e01389 Add ELF ObjectWriter and Streamer support. 
I forgot to add these files in commit 111172.

llvm-svn: 111174
 2010-08-16 18:57:57 +00:00
Matt Fleming
0078681411 Hookup ELF support for X86. 
llvm-svn: 111173
 2010-08-16 18:36:14 +00:00
Matt Fleming
e381e308f2 Add ELF ObjectWriter and Streamer support. 
llvm-svn: 111172
 2010-08-16 18:35:43 +00:00
Matt Fleming
5fc461afc4 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.

llvm-svn: 111171
 2010-08-16 18:35:06 +00:00