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Author SHA1 Message Date
Nick Lewycky
fc7a74c9a0 Fix memory corruption. If one of the SCEV creation functions calls another but 
doesn't return immediately after then the insert position in UniqueSCEVs will
be out of date. No test because this is a memory corruption issue. Fixes PR9051!

llvm-svn: 124282
 2011-01-26 08:40:22 +00:00
Eric Christopher
cb32adbd3f Separate out the constant bonus from the size reduction metrics. Rework 
a few loops accordingly. Should be no functional change.

This is a step for more accurate cost/benefit analysis of devirt/inlining
bonuses.

llvm-svn: 124275
 2011-01-26 02:58:39 +00:00
Bill Wendling
a4abd1fc4b Add needed braces. 
llvm-svn: 124273
 2011-01-26 02:06:22 +00:00
NAKAMURA Takumi
8ace7260cc Target/X86: Tweak win64's tailcall. 
llvm-svn: 124272
 2011-01-26 02:04:09 +00:00
NAKAMURA Takumi
a2cf7854a1 TableGen: PointerLikeRegClass can be accepted to operand. 
llvm-svn: 124271
 2011-01-26 02:03:48 +00:00
NAKAMURA Takumi
066378440a Fix whitespace. 
llvm-svn: 124270
 2011-01-26 02:03:37 +00:00
NAKAMURA Takumi
a3d094f248 lib/Target/X86/X86RegisterInfo.cpp: Fix whitespace. 
llvm-svn: 124268
 2011-01-26 01:28:06 +00:00
NAKAMURA Takumi
1557668f7b lib/Target/X86/X86RegisterInfo.cpp: Fix a typo in comment. 
llvm-svn: 124267
 2011-01-26 01:27:58 +00:00
Eric Christopher
45e584b1b7 Coding style formatting changes. 
llvm-svn: 124260
 2011-01-26 01:09:59 +00:00
Jakob Stoklund Olesen
5c0fcc03af Rename member variables to follow the rest of LLVM. 
No functional change.

llvm-svn: 124257
 2011-01-26 00:50:53 +00:00
Devang Patel
134e5b7679 Provide an interface to transfer SDDbgValue from one SDNode to another. 
llvm-svn: 124245
 2011-01-25 23:27:42 +00:00
David Greene
3933f264a6 [AVX] Fix a typo in the extract subvector type constraints to specify 
the correct number of operands.

llvm-svn: 124234
 2011-01-25 22:05:41 +00:00
Bill Wendling
69916a2e10 Revert 124230. It was causing test failures. 
llvm-svn: 124233
 2011-01-25 21:48:36 +00:00
Bill Wendling
80dd6f7494 The floating point value is encoded in its binary form as an Imm. Convert it 
appropriately so that it prints out the decimal representation.

llvm-svn: 124230
 2011-01-25 21:27:46 +00:00
Bill Wendling
195d8c3988 Add support for parsing a Real value. It stores the Real value as its binary 
encoding. It's up to the individual back-ends to convert it to their preferred
representation when printing.

llvm-svn: 124229
 2011-01-25 21:26:41 +00:00
Rafael Espindola
29e8317caa Move unnamed_addr after the function arguments on Sabre's request. 
llvm-svn: 124209
 2011-01-25 19:09:56 +00:00
Devang Patel
fce915414e Resolve DanglingDbgValue of PHI nodes where the use follows dbg.value intrinisic. 
llvm-svn: 124203
 2011-01-25 18:09:58 +00:00
Devang Patel
e1d739cd64 This assertion is too restrictive, it does not apply for dangling dbg value nodes (nodes where dbg.value intrinsic preceds use of the value). 
llvm-svn: 124202
 2011-01-25 18:09:33 +00:00
David Greene
b90e7ec2dc [AVX] Add TableGen classes for vector/subvector type constraints. 
This will be used to check patterns referencing a forthcoming
INSERT_SUBVECTOR SDNode and will also be used to check
EXTRACT_SUBVECTOR nodes.

llvm-svn: 124191
 2011-01-25 16:16:32 +00:00
Duncan Sands
017a3d76f7 In which I discover that zero+zero is zero, d'oh! 
llvm-svn: 124188
 2011-01-25 15:14:15 +00:00
Jay Foad
31729c4638 Avoid compiler errors when this header file is included first, by adding 
a forward declaration of simplify_type<>.

llvm-svn: 124187
 2011-01-25 14:33:33 +00:00
Duncan Sands
76eef3df7e Turn off this test - the corresponding instsimplify logic has been 
disabled.

llvm-svn: 124185
 2011-01-25 12:31:43 +00:00
Duncan Sands
4d8a541ae2 See if this fixes llvm-gcc bootstrap. 
llvm-svn: 124184
 2011-01-25 12:15:09 +00:00
Duncan Sands
92b081bd42 According to my auto-simplifier the most common missed simplifications in 
optimized code are:
  (non-negative number)+(power-of-two) != 0 -> true
and
  (x | 1) != 0 -> true
Instcombine knows about the second one of course, but only does it if X|1
has only one use.  These fire thousands of times in the testsuite.

llvm-svn: 124183
 2011-01-25 09:38:29 +00:00
Nick Lewycky
b20b284b35 Teach mergefunc how to emit aliases safely again -- but keep it turned it off 
for now. It's controlled by the HasGlobalAliases variable which is not attached
to any flag yet.

llvm-svn: 124182
 2011-01-25 08:56:50 +00:00
Eric Christopher
8c76a85e48 Reorganize this so that the early exit and special cases come early 
rather than interspersed. No functional change.

llvm-svn: 124168
 2011-01-25 01:34:31 +00:00
Evan Cheng
8e47a6e196 Don't merge restore with tail call instruction. 
llvm-svn: 124167
 2011-01-25 01:28:33 +00:00
Daniel Dunbar
c07888ef8d tblgen/AsmMatcherEmitter: Fix alias handling to honor -match-prefix. 
llvm-svn: 124154
 2011-01-24 23:26:31 +00:00
Anton Korobeynikov
964b274578 Provide correct registers for EH stuff on ARM 
llvm-svn: 124151
 2011-01-24 22:38:45 +00:00
Anton Korobeynikov
febd3ec17f Support printing exception section into the current one. This is the case when LSDASection is blank 
llvm-svn: 124150
 2011-01-24 22:38:40 +00:00
Eric Christopher
4a1aea2da3 Perhaps a bit too much vertical whitespace. 
llvm-svn: 124148
 2011-01-24 22:19:14 +00:00
David Greene
1c4fa5e643 [AVX] Add type checking support for vector/subvector type constraints. 
This will be used to check patterns referencing a forthcoming
INSERT_SUBVECTOR SDNode.  INSERT_SUBVECTOR in turn is very useful for
matching to VINSERTF128 instructions and complements the already
existing EXTRACT_SUBVECTOR SDNode.

llvm-svn: 124145
 2011-01-24 20:53:18 +00:00
Devang Patel
431a9b9c2f Speculatively revert r124138. 
llvm-svn: 124142
 2011-01-24 20:04:37 +00:00
Rafael Espindola
f290466899 Jörg Sonnenberger noticed that we were missing this test. 
llvm-svn: 124139
 2011-01-24 19:40:38 +00:00
Devang Patel
5ccc4e884c Resolve DanglingDbgValue of PHI nodes where the use follows dbg.value intrinisic. 
llvm-svn: 124138
 2011-01-24 19:24:37 +00:00
Andrew Trick
977497dbf1 Temporarily workaround JM/lencod miscompile (SIGSEGV). 
rdar://problem/8893967

llvm-svn: 124137
 2011-01-24 19:08:15 +00:00
Dan Gohman
db0dc19c04 Give GetUnderlyingObject a TargetData, to keep it in sync 
with BasicAA's DecomposeGEPExpression, which recently began
using a TargetData. This fixes PR8968, though the testcase
is awkward to reduce.

Also, update several off GetUnderlyingObject's users
which happen to have a TargetData handy to pass it in.

llvm-svn: 124134
 2011-01-24 18:53:32 +00:00
Chris Lattner
1a73dcfbdd fix PR8928 by clearing a stale map, patch by Jakub Staszak! 
llvm-svn: 124132
 2011-01-24 18:36:51 +00:00
Duncan Sands
64d4cb968a Testcase for dragonegg commit 124128. 
llvm-svn: 124129
 2011-01-24 18:04:33 +00:00
Rafael Espindola
ead58a5259 Handle strings in section names the same way as gas: 
* If the name is a single string, we remove the quotes
* If the name starts without a quote, we include any quotes in the name

llvm-svn: 124127
 2011-01-24 18:02:54 +00:00
Dan Gohman
308677c046 Add a comment. 
llvm-svn: 124126
 2011-01-24 17:54:18 +00:00
Dan Gohman
6f83adb763 Add another rdar number. 
llvm-svn: 124125
 2011-01-24 17:54:01 +00:00
Daniel Dunbar
652bc3b0a3 Support/CommandLine: Fix LookupNearestOption to also search extra option names. 
llvm-svn: 124124
 2011-01-24 17:27:17 +00:00
Chris Lattner
9ba0a83f2b fix a missing shuffle pattern, PR9009. Patch by Artiom Myaskouvskey! 
llvm-svn: 124102
 2011-01-24 03:42:46 +00:00
Chris Lattner
8f4ed7d057 merge all the "crash tests" into crash.ll 
llvm-svn: 124101
 2011-01-24 03:37:34 +00:00
Chris Lattner
f33b65080c fix PR9017, a bug where we'd assert when promoting in unreachable 
code.

llvm-svn: 124100
 2011-01-24 03:29:07 +00:00
Chris Lattner
077cdfcadb fix PR9015, a crash linking recursive metadata. 
llvm-svn: 124099
 2011-01-24 03:18:24 +00:00
Chris Lattner
c025bec9e1 this isn't a memset, we do convert dest[i] to one though :) 
llvm-svn: 124097
 2011-01-24 02:32:00 +00:00
Chris Lattner
1f9ed3b437 with recent work, we now optimize this into: 
define i32 @foo(i32 %x) nounwind readnone ssp {
entry:
  %tobool = icmp eq i32 %x, 0
  %tmp5 = select i1 %tobool, i32 2, i32 1
  ret i32 %tmp5
}

llvm-svn: 124091
 2011-01-24 01:12:18 +00:00
Chris Lattner
3609e5afb4 enhance SRoA to promote allocas that are used by PHI nodes. This often 
occurs because instcombine sinks loads and inserts phis.  This kicks in 
on such apps as 175.vpr, eon, 403.gcc, xalancbmk and a bunch of times in
spec2006 in some app that uses std::deque.

This resolves the last of rdar://7339113.

llvm-svn: 124090
 2011-01-24 01:07:11 +00:00