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Author SHA1 Message Date
Chris Lattner
394370b299 there is no need to emit a .section above .comm on linux. 
llvm-svn: 93842
 2010-01-19 02:46:56 +00:00
Bill Wendling
1e66a08920 Even more explanation. 
llvm-svn: 93841
 2010-01-19 02:44:01 +00:00
Chris Lattner
53d8210a69 change an accessor to a predicate. 
llvm-svn: 93839
 2010-01-19 02:13:06 +00:00
Chris Lattner
816fcd1287 Cleanup handling of .zerofill on darwin: 
1. TargetLoweringObjectFileMachO should decide if something
   goes in zerofill instead of having every target do it.
2. TargetLoweringObjectFileMachO should assign said symbols to
   the right MCSection, the asmprinters should just emit to the
   right section.
3. Since all zerofill stuff goes through mcstreamer anymore,
   MAI can have a bool "haszerofill" instead of having the textual
   directive to emit.

llvm-svn: 93838
 2010-01-19 02:09:44 +00:00
Nate Begeman
3c96073ce7 Remove this fixme, looking at the linker source, all targets pad to 4 bytes. 
llvm-svn: 93835
 2010-01-19 01:32:44 +00:00
Chris Lattner
fa545150c4 remove extraneous ; 
llvm-svn: 93833
 2010-01-19 01:28:09 +00:00
Devang Patel
885bd38bfc Revert accident check-in from r93165. 
llvm-svn: 93832
 2010-01-19 01:26:02 +00:00
Eric Christopher
5b602f9bf7 Fix comment. 
llvm-svn: 93831
 2010-01-19 01:20:15 +00:00
Evan Cheng
f1a3f81a1d Fix r93758. Use isel patterns instead of c++ selection code to select rbit and make sure we pick different instructions for ARM vs. Thumb2. 
llvm-svn: 93829
 2010-01-19 00:44:15 +00:00
Evan Cheng
572390be3b Test case for r93758. 
llvm-svn: 93824
 2010-01-19 00:35:20 +00:00
Dale Johannesen
5565ddfcbe Reverting. 
llvm-svn: 93819
 2010-01-19 00:12:05 +00:00
Dale Johannesen
e1ba7ecf45 Revert 93811 per request. 
llvm-svn: 93818
 2010-01-19 00:10:52 +00:00
Dale Johannesen
0b8b2713d3 Enable code to emit dbg.declare as DEBUG_VALUE 
comments (fast isel, X86).  This doesn't seem
to break any functionality, but will introduce
cases where -g affects the generated code.  I'll
be fixing that.

llvm-svn: 93811
 2010-01-18 23:34:55 +00:00
Victor Hernandez
edcdd08463 Add comment that MDNode::getFunction() is not to be used by performance-critical code (currently only used by AsmWriter) 
llvm-svn: 93802
 2010-01-18 22:55:08 +00:00
Eli Friedman
45d605c120 Make opt -O3 act more like clang -O3 etc., by making the inlining thresholds 
match.

llvm-svn: 93798
 2010-01-18 22:38:31 +00:00
Eli Friedman
0aade63ca6 Add some potentially interesting transformations to README. 
llvm-svn: 93797
 2010-01-18 22:36:59 +00:00
Bill Wendling
58d26c105b - Add getLSDAEncoding to the PowerPC backend. 
- Greatly improve the comments to the getLSDAEncoding method.

llvm-svn: 93796
 2010-01-18 22:36:35 +00:00
Chris Lattner
39532b939f make llvm-config more portable to windows versions of perl, 
patch by Michael Beck!

llvm-svn: 93793
 2010-01-18 22:27:43 +00:00
Chris Lattner
6cd7a81f86 my instcombine transformations to make extension elimination more 
aggressive changed the canonical form from sext(trunc(x)) to ashr(lshr(x)),
make sure to transform a couple more things into that canonical form,
and catch a case where we missed turning zext/shl/ashr into a single sext.

llvm-svn: 93787
 2010-01-18 22:19:16 +00:00
Sean Callanan
3439b1e14c Added a newline at the end of SMLoc.h 
llvm-svn: 93784
 2010-01-18 22:16:54 +00:00
Sean Callanan
f6a09ee2ec Changed the comment in the file header for SMLoc 
to something more accurate.

llvm-svn: 93782
 2010-01-18 22:11:34 +00:00
Eric Christopher
f599e07003 Have FastISel handle llvm.trap(). 
llvm-svn: 93781
 2010-01-18 22:11:29 +00:00
Sean Callanan
aef98cfcd2 Split SMLoc out in its own header so that it can 
be used independently of SourceMgr.

llvm-svn: 93780
 2010-01-18 22:07:51 +00:00
Jim Grosbach
27e064420b Minor cleanup for jump table printing. Need a reference, not a pointer, for 
printing via <<. Otherwise we just print the pointer value.

llvm-svn: 93777
 2010-01-18 22:01:39 +00:00
Chris Lattner
6020407d78 filecheckize this. 
llvm-svn: 93776
 2010-01-18 22:00:46 +00:00
Chris Lattner
a01771c6db filecheckize 
llvm-svn: 93775
 2010-01-18 21:58:32 +00:00
Chris Lattner
882bcda7ca remove a redundant test, filecheckize another. 
llvm-svn: 93774
 2010-01-18 21:55:43 +00:00
Evan Cheng
5cf9d23e4e Canonicalize -1 - x to ~x. 
Instcombine does this but apparently there are situations where this pattern will escape the optimizer and / or created by isel. Here is a case that's seen in JavaScriptCore:
  %t1 = sub i32 0, %a
  %t2 = add i32 %t1, -1
The dag combiner pattern: ((c1-A)+c2) -> (c1+c2)-A
will fold it to -1 - %a.

llvm-svn: 93773
 2010-01-18 21:38:44 +00:00
Chris Lattner
b9ad4c901e update mkpatch, patch by Garrison Venn! 
llvm-svn: 93771
 2010-01-18 21:09:05 +00:00
Victor Hernandez
afaac26fea Make findDbgDeclare/findDbgGlobalDeclare local static functions; avoid Elts array 
llvm-svn: 93764
 2010-01-18 20:42:09 +00:00
Victor Hernandez
247ec55125 Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic 
llvm-svn: 93762
 2010-01-18 20:36:54 +00:00
Johnny Chen
a5f79a6b93 The most significant encoding bit of GPR:$src or GPR:$dst was over-specified in 
the various MOV (register) instructions (16-bit Thumb), including tBRIND (the
indirect branch).  Instead of '1', it should be specified as '?', because GPR
only specifies the register class, which includes both hi-and-lo registers.

llvm-svn: 93759
 2010-01-18 20:15:56 +00:00
Jim Grosbach
70af2216fd Patch by David Conrad: 
"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
 sequence it is now."

llvm-svn: 93758
 2010-01-18 19:58:49 +00:00
Devang Patel
2cae5754c6 While mapping llvm.dbg.declare intrinsic manually map its operand, if possible, 
because it points to an alloca instruction through metadata.

llvm-svn: 93757
 2010-01-18 19:52:14 +00:00
Chris Lattner
4104b0bccd reject some invalid IR. We already assert and reject this from the 
.ll parser, but PR6070 wants it in the verifier too.

llvm-svn: 93756
 2010-01-18 19:50:32 +00:00
Bill Wendling
db47c10171 Add FIXME comment. 
llvm-svn: 93755
 2010-01-18 19:47:53 +00:00
Bill Wendling
5678a9711b - Add a comment to the callback indicating that it's *extremely* not a good 
idea, but unfortunately necessary.
- Default to using 4-bytes for the LSDA pointer encoding to agree with the
  encoded value in the CIE.

llvm-svn: 93753
 2010-01-18 19:36:27 +00:00
Victor Hernandez
b1b145fed9 Make printing of metadata more robust when function is not found (which is the normal situation for non function-local metadata) 
llvm-svn: 93748
 2010-01-18 19:15:57 +00:00
Daniel Dunbar
62bfea2420 Don't try to build compiler-rt if it happens to be checked out into projects/ 
llvm-svn: 93729
 2010-01-18 17:52:28 +00:00
Benjamin Kramer
35bf21a0d2 Unnamed symbol index should be >= 1. This was lost during the mangler refactoring. Fixes PR6067. 
llvm-svn: 93724
 2010-01-18 14:39:20 +00:00
Benjamin Kramer
21e6f07f53 Fix refacto reported by Nicolas Geoffray. 
llvm-svn: 93723
 2010-01-18 12:40:05 +00:00
Bob Wilson
ac3735b7fb Emit spaces after commas in Neon register lists. This is more consistent 
with the rest of the assembly output, is easier to read, and matches the
expected output for gcc's Neon tests.

llvm-svn: 93703
 2010-01-18 01:24:43 +00:00
Chris Lattner
40f9b01ab5 switch x86 zerofill emission over to use MCStreamer. 
llvm-svn: 93702
 2010-01-18 01:21:08 +00:00
Chris Lattner
d7bd67fa61 Change CurrentFnSym to be a non-const pointer since asmprinter mutates it 
as it emits code.  Switch .globl directives to use OutStreamer instead of
doing it textually (in x86)

llvm-svn: 93700
 2010-01-18 00:59:24 +00:00
Chris Lattner
86287085ba remove the MAI argument to MCExpr::print and switch overthing to use << when printing them. 
llvm-svn: 93699
 2010-01-18 00:37:40 +00:00
Chris Lattner
a1bd99bd92 unbreak x86 jump tables with my previous patch. 
llvm-svn: 93698
 2010-01-18 00:21:06 +00:00
Chris Lattner
6f360c3c91 now that MCSymbol::print doesn't use it's MAI argument, we can 
remove it and change all the code that prints MCSymbols to use 
<< instead, which is much simpler and cleaner.

llvm-svn: 93695
 2010-01-17 21:43:43 +00:00
Chris Lattner
bd2eeabe74 rename NameNeedsEscaping -> NameNeedsQuoting, eliminate the check 
for first character which is a digit, mangler would have taken care
of this already.

llvm-svn: 93694
 2010-01-17 20:11:03 +00:00
Owen Anderson
d73ce407a5 Convert some of the dynamic opcode lookups into static ones. 
llvm-svn: 93693
 2010-01-17 19:33:27 +00:00
Chris Lattner
c2047ba3e4 stop the CBE from using Mangler::appendMangledName, which is a private function, it is mangling types, which don't matter how they are done. 
llvm-svn: 93692
 2010-01-17 19:32:29 +00:00