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Author SHA1 Message Date
Benjamin Kramer
88e421e531 Fix anachronism. 
llvm-svn: 100225
 2010-04-02 20:47:05 +00:00
Chris Lattner
abbd9ae4d3 DebugInfoFinder::processModule was foiling my plot by 
materializing an MDNode for every debugloc.  don't do that! :)

"clang -g -S t.c" really no longer makes mdnodes for location 
tuples now.

llvm-svn: 100224
 2010-04-02 20:44:29 +00:00
Chris Lattner
9da2b8a955 fix the llvm-x86_64-linux buildbot. 
llvm-svn: 100223
 2010-04-02 20:36:25 +00:00
Chris Lattner
c7be637524 remove empty file. 
llvm-svn: 100222
 2010-04-02 20:26:36 +00:00
Chris Lattner
d2b2c940bf remove compatibility typedef. 
llvm-svn: 100221
 2010-04-02 20:26:07 +00:00
Chris Lattner
a686e27bab rename NewDebugLoc -> DebugLoc, prune #includes in DebugLoc.h. 
This keeps around temporary typedef for clang/llvm-gcc so the
build won't break when I commit this :)

llvm-svn: 100218
 2010-04-02 20:21:22 +00:00
Chris Lattner
140f2f6c61 remove uses of DebugLoc::getUnknownLoc. 
llvm-svn: 100217
 2010-04-02 20:20:41 +00:00
Chris Lattner
844634a807 include densemap.h explicitly and rearrange #includes. 
llvm-svn: 100216
 2010-04-02 20:20:04 +00:00
Chris Lattner
0da97990f6 stop using DebugLoc::getUnknownLoc() 
llvm-svn: 100215
 2010-04-02 20:17:23 +00:00
Chris Lattner
58b7cca257 use DebugLoc default ctor instead of DebugLoc::getUnknownLoc() 
llvm-svn: 100214
 2010-04-02 20:16:16 +00:00
Chris Lattner
305c84b8ee Switch the code generator (except the JIT) onto the new DebugLoc 
representation.  This eliminates the 'DILocation' MDNodes for 
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before.  Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209
 2010-04-02 19:42:39 +00:00
Evan Cheng
5d825988d0 Correctly lower memset / memcpy of undef. It should be a nop. PR6767. 
llvm-svn: 100208
 2010-04-02 19:36:14 +00:00
Evan Cheng
499918dabf Revert 100204. It broke a bunch of tests and apparently changed what passes are run during codegen. 
llvm-svn: 100207
 2010-04-02 19:29:15 +00:00
Benjamin Kramer
69aee9e31b Update CMake. 
llvm-svn: 100206
 2010-04-02 19:09:51 +00:00
David Greene
554373897c Let's try this again. Re-apply 100143 including an apparent missing 
<string> include.  For some reason the buildbot choked on this while my
builds did not.  It's probably due to a difference in system headers.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100204
 2010-04-02 18:46:26 +00:00
Mon P Wang
0ccf050ca3 Revert r100191 since it breaks objc in clang 
llvm-svn: 100199
 2010-04-02 18:43:02 +00:00
Mon P Wang
a01350755e Reapply address space patch after fixing an issue in MemCopyOptimizer. 
Added support for address spaces and added a isVolatile field to memcpy, memmove, and memset,
e.g., llvm.memcpy.i32(i8*, i8*, i32, i32) -> llvm.memcpy.p0i8.p0i8.i32(i8*, i8*, i32, i32, i1)

llvm-svn: 100191
 2010-04-02 18:04:15 +00:00
Dan Gohman
0b7f8ec7f7 Add an explicit keyword. 
llvm-svn: 100187
 2010-04-02 14:57:49 +00:00
Dan Gohman
8835a0200a Manually notify ScalarEvolution before making an operand replacement, since 
it can't currently observe such changes automatically.

llvm-svn: 100186
 2010-04-02 14:48:31 +00:00
Torok Edwin
13048a143f Fix SpecificBumpPtrAllocator iteration. 
Need to start from (char*)(Slab+1), and not from (char*)Slab+1.
This fixes crashes in Win64 debug mode.
Thanks to Nicolas Capens!

llvm-svn: 100184
 2010-04-02 13:20:51 +00:00
Duncan Sands
7a7fb5d551 Add notes about dragonegg. 
llvm-svn: 100183
 2010-04-02 09:23:15 +00:00
Bob Wilson
88d149d129 Recommit 100158 now that the buildbots are happy again. 
llvm-svn: 100177
 2010-04-02 05:09:46 +00:00
Eric Christopher
e6ad109103 Remove FIXME - if there's a better way to do this it isn't here. 
llvm-svn: 100176
 2010-04-02 04:32:37 +00:00
Dan Gohman
7051600e3f Revert the recent alignment changes. They're broken for -Os because, 
in particular, they end up aligning strings at 16-byte boundaries, and
there's no way for GlobalOpt to check OptForSize.

llvm-svn: 100172
 2010-04-02 03:04:37 +00:00
Evan Cheng
921fc2c77b After trivial coalescing, the MI being visited may have become a copy. Avoid adding it to CSE hash table since copies aren't being considered for CSE and they may be deleted. 
rdar://7819990

llvm-svn: 100170
 2010-04-02 02:21:24 +00:00
Dale Johannesen
5b35f2ee86 Teach AnalyzeBranch, RemoveBranch and the branch 
folder to be tolerant of debug info following the
branch(es) at the end of a block.

llvm-svn: 100168
 2010-04-02 01:38:09 +00:00
Chandler Carruth
db4beb9b04 Disambiguate conditional expression for newer GCCs. 
llvm-svn: 100167
 2010-04-02 01:31:24 +00:00
Dan Gohman
ec731a99fa Remove this initializer so that the optimizer doesn't convert 
unaligned loads into aligned loads.

llvm-svn: 100166
 2010-04-02 01:26:13 +00:00
Dan Gohman
d14fe2a5cd Update this test for the new preferred alignment heuristics. 
llvm-svn: 100165
 2010-04-02 01:24:08 +00:00
Bob Wilson
4b5f895975 Revert 100158 in case it is causing some of the buildbot problems. 
llvm-svn: 100164
 2010-04-02 01:22:49 +00:00
Sean Callanan
ea4f4644ee Updated the install location for EnhancedDisassembly 
on Mac OS X to use @rpath rather than an absolute
path.  Also allowed the version to be set using an
environment variable.

llvm-svn: 100163
 2010-04-02 00:53:42 +00:00
Dan Gohman
d12e6c92c5 Change variables which are exactly 16 bytes to be 16-byte-aligned too. 
This fixes test/Transforms/GlobalOpt/gv-align.ll.

llvm-svn: 100161
 2010-04-02 00:46:07 +00:00
Dan Gohman
ece7e3c015 Make globalopt refine global variable alignment. 
llvm-svn: 100160
 2010-04-02 00:14:16 +00:00
Bob Wilson
ab18888a5a Check for terminating conditions before adding PHIs to the worklists. 
This is more efficient than adding them to the worklist and then ignoring them.

llvm-svn: 100158
 2010-04-02 00:10:41 +00:00
Dan Gohman
5437ff1446 If the bitcode reader input stream isn't a multiple of 4 bytes, it's more 
likely not a bitcode file at all, rather than being a bitcode file which
is truncated. Check for this case and issue a more relevant error message.

llvm-svn: 100156
 2010-04-02 00:03:51 +00:00
Bob Wilson
1b646b39e2 Remove trailing whitespace. 
llvm-svn: 100148
 2010-04-01 23:06:38 +00:00
Bob Wilson
08cc4030dd Rewrite another SSAUpdater function to avoid recursion. 
llvm-svn: 100147
 2010-04-01 23:05:58 +00:00
Eric Christopher
77e4cc4bbd Revert r100143. 
llvm-svn: 100146
 2010-04-01 22:54:42 +00:00
Devang Patel
1d51b57a85 Revert r100117. 
llvm-svn: 100145
 2010-04-01 22:47:29 +00:00
David Greene
a358be0ef7 Add some switches helpful for debugging: 
-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation.  It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100143
 2010-04-01 22:43:57 +00:00
Evan Cheng
9508456bb6 In 64-bit mode, use i64 to lower memcpy / memset instead of f64. 
llvm-svn: 100137
 2010-04-01 20:27:45 +00:00
Devang Patel
97a60f2ce5 Do not eagerly record known previous location. DBG_VALUE may not cause a new label due to one or other reason. 
llvm-svn: 100134
 2010-04-01 20:22:44 +00:00
Evan Cheng
9307af84c2 Skip checking preferred alignment of GVs defined in other translation units all together. 
llvm-svn: 100133
 2010-04-01 20:13:28 +00:00
Evan Cheng
dc26010cc1 Add comments about DstAlign and SrcAlign. 
llvm-svn: 100132
 2010-04-01 20:10:42 +00:00
Bob Wilson
bfd85d79c1 Change another SSAUpdater function to avoid recursion. 
llvm-svn: 100131
 2010-04-01 20:04:30 +00:00
Bob Wilson
39e3a8e9f7 Simplify the code to check for existing PHIs, now that it is only used in 
one place.  This removes the template function added in svn 94690.

llvm-svn: 100130
 2010-04-01 19:53:48 +00:00
Bob Wilson
205385244c The SSAUpdater should avoid recursive traversals of the CFG, since that may 
blow out the stack for really big functions.  Start by fixing an easy case.

llvm-svn: 100126
 2010-04-01 18:46:59 +00:00
Evan Cheng
8728924812 - Avoid using floating point stores to implement memset unless the value is zero. 
- Do not try to infer GV alignment unless its type is sized. It's not possible to infer alignment if it has opaque type.

llvm-svn: 100118
 2010-04-01 18:19:11 +00:00
Devang Patel
52c509b85d Skip instructions until new scope is seen. 
llvm-svn: 100117
 2010-04-01 17:32:01 +00:00
Devang Patel
e55fdcf347 Cosmetic changes. 
Update comment, rename a local variable.

llvm-svn: 100116
 2010-04-01 17:16:48 +00:00