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Author SHA1 Message Date
Jim Grosbach
5147a59e59 Thumb2 assembly parsing and encoding for SMLAD/SMLADX. 
llvm-svn: 139884
 2011-09-16 00:09:37 +00:00
Jakob Stoklund Olesen
24e6a5b2cc Spill mode: Hoist back-copies locally. 
The leaveIntvAfter() function normally inserts a back-copy after the
requested instruction, making the back-copy kill the live range.

In spill mode, try to insert the back-copy before the last use instead.
That means the last use becomes the kill instead of the back-copy.  This
lowers the register pressure because the last use can now redefine the
same register it was reading.

This will also improve compile time: The back-copy isn't a kill, so
hoisting it in hoistCopiesForSize() won't force a recomputation of the
source live range.  Similarly, if the back-copy isn't hoisted by the
splitter, the spiller will not attempt hoisting it locally.

llvm-svn: 139883
 2011-09-16 00:03:35 +00:00
Jakob Stoklund Olesen
9596294e98 Disable local spill hoisting for non-killing copies. 
If the source register is live after the copy being spilled, there is no
point to hoisting it.  Hoisting inside a basic block only serves to
resolve interferences by shortening the live range of the source.

llvm-svn: 139882
 2011-09-16 00:03:33 +00:00
Jim Grosbach
9fb6f7e9fc Thumb2 assembly parsing and encoding for SMLABB/SMLABT/SMLATB/SMLATT. 
llvm-svn: 139881
 2011-09-16 00:00:23 +00:00
Jim Grosbach
85838cdb51 Thumb2 assembly parsing and encoding for SHSUB16/SHSUB8. 
llvm-svn: 139880
 2011-09-15 23:58:56 +00:00
Jim Grosbach
27a086b1d0 Remove incorrect comments. 
llvm-svn: 139877
 2011-09-15 23:45:50 +00:00
Owen Anderson
e54c4beb5a Don't attach annotations to MCInst's. Instead, have the disassembler return, and the printer accept, an annotation string which can be passed through if the client cares about annotations. 
llvm-svn: 139876
 2011-09-15 23:38:46 +00:00
Ivan Krasin
de2d3cf093 use 64-bit types instead of off_t/size_t to avoid the issue when 
gold plugin is built with Large File Support (sizeof(off_t) == 64 on i686)
and the rest of LLVM is built w/o Large File Support
(sizeof(off_t) == 32 on i686) which corrupts the stack.

llvm-svn: 139873
 2011-09-15 23:13:00 +00:00
Bruno Cardoso Lopes
1465f4d334 Add a fixme note! 
llvm-svn: 139872
 2011-09-15 23:04:24 +00:00
Jim Grosbach
eee3717b95 Thumb2 assembly parsing and encoding for SHADD16/SHADD8. 
llvm-svn: 139871
 2011-09-15 22:36:10 +00:00
Jim Grosbach
423aae30b2 Thumb2 assembly parsing and encoding for SHASX/SHSAX. 
llvm-svn: 139870
 2011-09-15 22:34:29 +00:00
Eli Friedman
0e654e52d9 Minor cleanup. 
llvm-svn: 139869
 2011-09-15 22:26:18 +00:00
Benjamin Kramer
d8bbe6cceb Unbreak the build for compilers that don't include cstdint everywhere. 
llvm-svn: 139868
 2011-09-15 22:26:16 +00:00
Jim Grosbach
68e3ea237e Thumb2 assembly parsing and encoding for SEV.W. 
llvm-svn: 139866
 2011-09-15 22:24:20 +00:00
Eli Friedman
1df4766bda Use a more efficient lowering for Unordered/Monotonic atomic load/store on Thumb1. 
llvm-svn: 139865
 2011-09-15 22:18:49 +00:00
Bruno Cardoso Lopes
7ad9ea026a Add the remaining AVX versions of instructions to X86InstrInfo, this 
time for describing high latency ones and for recognizting loads
from the same base pointer

llvm-svn: 139864
 2011-09-15 22:15:52 +00:00
Jim Grosbach
29e503aec9 Thumb2 assembly parsing and encoding for SEL. 
llvm-svn: 139861
 2011-09-15 22:01:09 +00:00
Benjamin Kramer
e98b6ec93c DWARF: Reset the state after parsing a line table prologue and remove an unnecessary lookup. 
llvm-svn: 139859
 2011-09-15 21:59:13 +00:00
Jim Grosbach
b9ba7e59b7 Thumb2 assembly parsing and encoding for SBFX. 
llvm-svn: 139858
 2011-09-15 21:58:42 +00:00
Bruno Cardoso Lopes
901f6ff218 Factor out partial register update checks for some SSE instructions. 
Also add the AVX versions and add comments!

llvm-svn: 139854
 2011-09-15 21:42:23 +00:00
Eli Friedman
f7bb39b592 Some legalization fixes for atomic load and store. 
llvm-svn: 139851
 2011-09-15 21:20:49 +00:00
Benjamin Kramer
b5c3c42a54 llvm-dwarfdump: Add an option to print out line info for a specific address 
Usage:
$ llvm-dwarfdump -address=0x0000000100000ed4 a.out.dSYM/Contents/Resources/DWARF/a.out 
xxx.c:6:0

llvm-svn: 139850
 2011-09-15 21:17:40 +00:00
Jim Grosbach
aeb7320fa5 Add some missing 'CHECK' lines and tidy up others. 
llvm-svn: 139849
 2011-09-15 21:17:38 +00:00
Benjamin Kramer
8e526ee5b0 CommandLine: Add support for 64 bit unsigned integer options. 
llvm-svn: 139848
 2011-09-15 21:17:37 +00:00
Benjamin Kramer
912beeec25 DWARF: Don't crash when looking up an invalid address. 
llvm-svn: 139846
 2011-09-15 21:08:54 +00:00
Jakob Stoklund Olesen
6ccd8e9c0d Add an option to disable spill hoisting. 
When -split-spill-mode is enabled, spill hoisting is performed by
SplitKit instead of by InlineSpiller.  This hidden command line option
is for testing the splitter spill mode.

llvm-svn: 139845
 2011-09-15 21:06:00 +00:00
Jim Grosbach
8ceb22b769 Thumb2 assembly parsing and encoding for SBC. 
llvm-svn: 139844
 2011-09-15 21:04:10 +00:00
Jim Grosbach
1ac9dd8a72 Thumb2 assembly parsing and encoding for SASX. 
llvm-svn: 139843
 2011-09-15 21:01:23 +00:00
Andrew Trick
1dfb51c692 Reapply r139759. Disable IV rewriting by default. See PR10916. 
llvm-svn: 139842
 2011-09-15 20:58:37 +00:00
Jim Grosbach
eaeb10930f Thumb2 assembly parsing and encoding for SADD16/SADD8. 
llvm-svn: 139841
 2011-09-15 20:57:39 +00:00
Jim Grosbach
553692fcce Thumb2 assembly parsing and encoding for RSB. 
llvm-svn: 139839
 2011-09-15 20:54:14 +00:00
Benjamin Kramer
a2833ff7e0 DWARF: Put all the pieces we have together and provide a single accessor to DIContext that provides line information when given an address. 
llvm-svn: 139836
 2011-09-15 20:43:22 +00:00
Benjamin Kramer
5307d9c91a DWARF: Remove accessors that parse the whole line table section in one go, this can't possibly work. 
The address size is specified by the compile unit associated with a line table, there is no global address size.

llvm-svn: 139835
 2011-09-15 20:43:18 +00:00
Jim Grosbach
267610ed2a Thumb2 assembly parsing and encoding for RRX. 
llvm-svn: 139831
 2011-09-15 19:52:43 +00:00
Jim Grosbach
ee202d43fe Thumb2 assembly parsing and encoding for ROR. 
llvm-svn: 139830
 2011-09-15 19:50:04 +00:00
Jim Grosbach
50ee930e9a Thumb2 assembly parsing and encoding for REV16/REVSH. 
llvm-svn: 139828
 2011-09-15 19:46:13 +00:00
Owen Anderson
5514958222 The the MC disassembler C API to print in verbose mode. Perhaps there should be a parameter to request verbose mode? 
llvm-svn: 139821
 2011-09-15 18:37:20 +00:00
Owen Anderson
84d4e5d0e2 Add support for stored annotations to MCInst, and provide facilities for MC-based InstPrinters to print them out. Enhance the ARM and X86 InstPrinter's to do so in verbose mode. 
llvm-svn: 139820
 2011-09-15 18:36:29 +00:00
Jakob Stoklund Olesen
b36a98d18f VirtRegMap is counting spill slots, not register spills. 
Fix the stats counters to reflect that.

llvm-svn: 139819
 2011-09-15 18:31:13 +00:00
Bruno Cardoso Lopes
8e702bba63 Change all checks regarding the presence of any SSE level to always 
take into consideration the presence of AVX. This change, together with
the SSEDomainFix enabled for AVX, makes AVX codegen to always (hopefully)
emit the same code as SSE for 128-bit vector ops. I don't
have a testcase for this, but AVX now beats SSE in performance for
128-bit ops in the majority of programas in the llvm testsuite

llvm-svn: 139817
 2011-09-15 18:27:36 +00:00
Bruno Cardoso Lopes
0fa8b71a55 Enable SSEDomainFix pass for AVX mode. 
llvm-svn: 139816
 2011-09-15 18:27:32 +00:00
Jakob Stoklund Olesen
74cb8c037a Count correctly when a COPY turns into a spill or reload. 
The number of spills could go negative since a folded COPY is just a
spill, and it may be eliminated.

llvm-svn: 139815
 2011-09-15 18:22:52 +00:00
Jim Grosbach
9d7aa9bcbc Thumb2 assembly parsing and encoding for REV. 
llvm-svn: 139813
 2011-09-15 18:13:30 +00:00
Jim Grosbach
7c1422b068 Thumb2 assembly parsing and encoding for RBIT. 
llvm-svn: 139811
 2011-09-15 18:07:14 +00:00
Jim Grosbach
d6993cb54c Thumb2 assembly parsing and encoding for signed saturating arithmetic insns. 
llvm-svn: 139810
 2011-09-15 18:06:15 +00:00
Benjamin Kramer
1adbd30351 DWARF: Print line tables per compile unit, so they get the right address size. 
llvm-svn: 139808
 2011-09-15 18:02:20 +00:00
Jim Grosbach
e341895736 Assmebler symbol attribute directives don't work on temporary symbols. 
Assembler private local symbols aren't legal targets of symbol attributes,
so issue a diagnostic for them.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139807
 2011-09-15 17:56:49 +00:00
Jakob Stoklund Olesen
444ae3ddc7 Count inserted spills and reloads more accurately. 
Adjust counters when removing spill and reload instructions.

We still don't account for reloads being removed by eliminateDeadDefs().

llvm-svn: 139806
 2011-09-15 17:54:28 +00:00
Benjamin Kramer
900209189c DWARF: wire up .debug_str dumping. 
llvm-svn: 139799
 2011-09-15 16:57:13 +00:00
Jim Grosbach
00e28bee78 Handle missing newline at EOF more gracefully in MC AsmLexer. 
If we see an EOF w/o a preceding end-of-line, return an EndOfStatement
token before returning the Eof token.

Based on patch by Stepan Dyatkovskiy.

llvm-svn: 139798
 2011-09-15 16:52:06 +00:00