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35573 Commits

Author SHA1 Message Date
Dale Johannesen
1b346b7f8f 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93811 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 23:34:55 +00:00
Victor Hernandez
6cead7879a Add comment that MDNode::getFunction() is not to be used by performance-critical code (currently only used by AsmWriter) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:55:08 +00:00
Eli Friedman
9cfb3adf44 Add some potentially interesting transformations to README. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93797 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:36:59 +00:00
Bill Wendling
48814681d7 - Add getLSDAEncoding to the PowerPC backend. 
- Greatly improve the comments to the getLSDAEncoding method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93796 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:36:35 +00:00
Chris Lattner
cd5adbbc0c 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93787 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:19:16 +00:00
Eric Christopher
77f79895f8 Have FastISel handle llvm.trap(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:11:29 +00:00
Jim Grosbach
6a19947dd6 Minor cleanup for jump table printing. Need a reference, not a pointer, for 
printing via <<. Otherwise we just print the pointer value.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93777 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 22:01:39 +00:00
Evan Cheng
1ad0e8b576 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93773 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 21:38:44 +00:00
Victor Hernandez
756462bfbd Make findDbgDeclare/findDbgGlobalDeclare local static functions; avoid Elts array 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 20:42:09 +00:00
Victor Hernandez
54630e1cef Simplify MDNode::getFunction() and assertLocalFunction() by avoiding extra Function* variable and smallptrset since function-local metadata cannot be cyclic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93762 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 20:36:54 +00:00
Johnny Chen
eb231ce51d 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93759 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 20:15:56 +00:00
Jim Grosbach
3482c8003a Patch by David Conrad: 
"On ARMv6T2 this turns cttz into rbit, clz instead of the 4 instruction
 sequence it is now."




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93758 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:58:49 +00:00
Devang Patel
f9d5c5cf9f While mapping llvm.dbg.declare intrinsic manually map its operand, if possible, 
because it points to an alloca instruction through metadata.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:52:14 +00:00
Chris Lattner
b905b09f21 reject some invalid IR. We already assert and reject this from the 
.ll parser, but PR6070 wants it in the verifier too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93756 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:50:32 +00:00
Bill Wendling
097ea8315f Add FIXME comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93755 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:47:53 +00:00
Bill Wendling
a8c18890da - 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93753 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:36:27 +00:00
Victor Hernandez
38812dff7d Make printing of metadata more robust when function is not found (which is the normal situation for non function-local metadata) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93748 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 19:15:57 +00:00
Benjamin Kramer
4e7e2f5a36 Fix refacto reported by Nicolas Geoffray. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93723 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 12:40:05 +00:00
Bob Wilson
9fedc33ca8 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 01:24:43 +00:00
Chris Lattner
aad30363fb switch x86 zerofill emission over to use MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93702 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 01:21:08 +00:00
Chris Lattner
5957c84e09 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)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93700 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 00:59:24 +00:00
Chris Lattner
8cb9a3b13f remove the MAI argument to MCExpr::print and switch overthing to use << when printing them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 00:37:40 +00:00
Chris Lattner
950558aa23 unbreak x86 jump tables with my previous patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-18 00:21:06 +00:00
Chris Lattner
10b318bcb3 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93695 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 21:43:43 +00:00
Chris Lattner
6edec7b34a rename NameNeedsEscaping -> NameNeedsQuoting, eliminate the check 
for first character which is a digit, mangler would have taken care
of this already.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93694 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 20:11:03 +00:00
Owen Anderson
a81e241fcc Convert some of the dynamic opcode lookups into static ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 19:33:27 +00:00
Chris Lattner
0bd58b0e81 stop the CBE from using Mangler::appendMangledName, which is a private function, it is mangling types, which don't matter how they are done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93692 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 19:32:29 +00:00
Chris Lattner
acd03ae679 Get MCSymbol out of the mangling business, and move all the logic 
to Mangler.  Now MCSymbol just decides whether to slap quotes around
a symbol when printing it.

This also fixes some weirdness where two MCSymbols could be created
for the same symbol, if one needed to be mangled and got mangled to
the other one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 19:23:46 +00:00
Chris Lattner
ff240053bf factor this code better how that the string version of getNameWithPrefix 
takes a twine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 18:52:16 +00:00
Chris Lattner
c0dba723d1 now that mangler is in libtarget, it can use MCAsmInfo instead of clients 
having to pass various fields from it in.  Simplify.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 18:22:35 +00:00
Benjamin Kramer
1efd4fd56b Switch some functions to take Twines, eliminate uses of StringExtras.h. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93680 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 07:46:39 +00:00
Owen Anderson
5b39620e2d Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93679 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 06:49:03 +00:00
Bob Wilson
3a4a832223 The Neon "vtst" instruction takes a suffix that is the element size alone -- 
adding an "i" to the suffix, indicating that the elements are integers, is
accepted but not part of the standard syntax.  This helps us pass a few more
of the Neon tests from gcc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93677 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 06:35:17 +00:00
Bob Wilson
507d32aad2 Fix an off-by-one error that caused the chain operand to be dropped from Neon 
vector load-lane and store-lane instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93673 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 05:58:23 +00:00
Nate Begeman
6f24a0a603 Add a note for the macho streamer and remove a used of the mangler from the soon to be defunct machowriter pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93670 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-17 03:49:01 +00:00
Kenneth Uildriks
93ae407ec3 When checking for sret-demotion, it needs to use legal types. When using the return value of an sret-demoted call, it needs to use possibly illegal types that match the declared Type of the callee. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 23:37:33 +00:00
Benjamin Kramer
dbc130f592 Update CMake files for Mangler move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93665 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 22:23:09 +00:00
Chris Lattner
45111d160c move the mangler into libtarget from vmcore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 21:57:06 +00:00
Chris Lattner
c94c825a40 reapply the mangler gutting patch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93656 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 21:08:46 +00:00
Chris Lattner
6dfdad9c06 unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93654 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 20:53:11 +00:00
Rafael Espindola
0f0c97810c Revert 93648. 
Mangler::getMangledName is used from lto
Mangler::setUseQuotes is used in the AsmPrinter
Mangler::setSymbolsCanStartWithDigit is used in the AsmPrinter


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93652 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 20:27:59 +00:00
Chris Lattner
848d0f37d2 Mangler::getMangledName is now dead, remove it and all the other stuff in Mangler that is now transitively dead. woo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93648 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 19:08:51 +00:00
Chris Lattner
858431d0bc Change DIEObjectLabel to take an MCSymbol instead of std::string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 18:50:28 +00:00
Chris Lattner
7a2ba94d03 rename GetPrivateGlobalValueSymbolStub -> GetSymbolWithGlobalValueBase, 
and add an explicit ForcePrivate argument.

Switch FunctionEHFrameInfo to be MCSymbol based instead of string based.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93646 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 18:37:32 +00:00
Chris Lattner
08ce3b473d eliminate uses of getMangledName from AsmPrinter.cpp, last up is 
dwarf emission which is going to be more invasive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93645 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 18:17:26 +00:00
Chris Lattner
61f160a84e add an inefficient version of getNameWithPrefix that returns an std::string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93641 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 18:06:34 +00:00
Tobias Grosser
23279f18a9 Create Generic DOTGraphTraits Printer/Viewer 
Move the DOTGraphTraits dotty printer/viewer templates, that were developed for
the dominance tree into their own header file. This will allow reuse in future
passes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93632 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 10:56:41 +00:00
Devang Patel
a27f6e4e20 No need to use WeakVH here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 06:17:40 +00:00
Devang Patel
6b61f5816e Replace DebugLocTuple with DILocation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 06:09:35 +00:00
Chris Lattner
036d8f9581 fix build failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 03:38:27 +00:00
Chris Lattner
0b3735e65a remove a couple of actively incorrect uses of getMangledName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 02:16:09 +00:00
Chris Lattner
27891030ed this doesn't need the mangler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 02:15:38 +00:00
Chris Lattner
75abc68d32 more string -> sym, getMangledName is now gone from this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 02:09:06 +00:00
Chris Lattner
a40128c350 use symbols instead of strings, eliminating a bunch of getMangledName 
calls.  Add FIXMEs about a bunch of nondeterminism in stub output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93621 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 02:00:23 +00:00
Chris Lattner
76a3c48e68 simplify some code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93619 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:45:47 +00:00
Bill Wendling
d58e9cb42d Retrying r91337: 
The CIE says that the LSDA point in the FDE section is an "sdata4". That's fine,
but we need it to actually be 4-bytes in the FDE for some platforms. Allow
individual platforms to decide for themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:40:55 +00:00
Chris Lattner
9ab19f25aa eliminate uses of mangler and simplify code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93615 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:40:07 +00:00
Chris Lattner
10595490cc fix inverted conditional 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:37:14 +00:00
Chris Lattner
412c3a5bc9 CurrentFnName is now dead, remove it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93612 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:24:10 +00:00
Chris Lattner
ef4e536c7e get pic16 off CurrentFnName 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:21:04 +00:00
Chris Lattner
5c40e694dc remove the string form of printVisibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:17:26 +00:00
Chris Lattner
9c09363637 switch more stuff onto MCSymbols 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93608 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:12:01 +00:00
Bill Wendling
c5b7b19677 Temporarily revert r93581. It was causing failures in the ExecutionEngine tests 
on the build bots.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93606 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:06:58 +00:00
Chris Lattner
8570f594ad eliminate uses of deprecated mangler apis 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93605 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 01:00:27 +00:00
Chris Lattner
4fb69f40be switch X86 target off CurFunctionName and MCIze more. 
Note that the code wasn't calling DecorateCygMingName
when emitting the ".ascii -export" stuff at the end of
file for DLLExported functions.  I don't know if it should
or not, but I'm preserving behavior.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:51:39 +00:00
Bob Wilson
cb44b28f4d Treat indirect branches specially only during pre-regalloc tail duplication, 
not during the later post-alloc tail duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93600 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:42:25 +00:00
Chris Lattner
551cdd56ce MCize tis, and make it keep CurrentFnSym up to date with CurrentFnName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93598 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:32:38 +00:00
Bob Wilson
516ab96de3 Run the pre-register allocation tail duplication pass by default. Remove 
the -pre-regalloc-taildup command-line option, and add a new
-disable-early-taildup option.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93597 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:29:50 +00:00
Chris Lattner
99db039e72 revert the x86 part of my last patch, cygwin is mutating CurrentFnName! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:24:20 +00:00
Chris Lattner
12164414dd MCize a bunch more stuff, eliminating a lot of uses of the mangler 
and CurrentFnName.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-16 00:21:18 +00:00
Chris Lattner
8914fc20c2 remove two write-only sets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93590 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:56:03 +00:00
Chris Lattner
d1947ed2f8 supplement CurrentFnName with CurrentFnSym, which will eventually 
replace it.  Upgrade Alpha, Blackfin, and part of CellSPU to not
use mangler anymore.  CellSPU needs more invasive surgery.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93589 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:55:16 +00:00
Chris Lattner
53d4d78d9a add a version of AsmPrinter::printVisibility that takes an MCSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:38:51 +00:00
Chris Lattner
f0aacf8201 use MCSymbol instead of getMangledName() in all cases except one. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:31:55 +00:00
Ted Kremenek
67c59826bf BumpPtrAllocator: Have the DefaultSlabAllocator created at runtime, not initialization time. This removes one of the 'init_constructors' reported in <rdar://problem/7545356>. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:29:34 +00:00
Dale Johannesen
9a23981ecc Adjust some comments per review. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:29:29 +00:00
Chris Lattner
8b3787586e mc'ize a bunch of symbol stuff, eliminating std::strings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93578 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:26:49 +00:00
Chris Lattner
d588b97cc9 add another helper 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93577 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:25:11 +00:00
David Greene
ee9c595885 Fix PR6019. A load has more than one use if it feeds a bitconvert that 
has more than one use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93576 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:23:41 +00:00
Chris Lattner
6b04edee11 add a AsmPrinter::GetGlobalValueSymbol and GetExternalSymbolSymbol 
helper method, use it to simplify some code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93575 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 23:18:17 +00:00
Ted Kremenek
11f30b0131 Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93571 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:59:46 +00:00
Ted Kremenek
aeb9f0881a Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:59:11 +00:00
Dale Johannesen
23cdb0bdcf DEBUG_VALUE is now variable sized, as it has a 
target-dependent memory address representation in it.
Restore X86 printing of DEBUG_VALUE; lowering is
done in X86RegisterInfo using the normal algorithm.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:22:35 +00:00
Jim Grosbach
98793b9468 Update Thumb1 storeRegToStackSlot() and loadRegFromStackSlot() to properly 
handle physical registers R0-R7 when described as having a non-tGPR register
class.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:21:03 +00:00
Dan Gohman
5ad7de227b Fix a typo that Anton noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93563 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:18:15 +00:00
Devang Patel
167207a99b Add FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93562 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 22:08:16 +00:00
Bob Wilson
5cd8770412 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:55:02 +00:00
Eric Christopher
606a1d1f59 Remove the InlineHint attribute. There are no current or planned 
users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93558 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:36:30 +00:00
Anton Korobeynikov
9afb7c5fb3 zext / truncate is free on msp430. Inform codegen about this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93556 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:19:43 +00:00
Anton Korobeynikov
702adaba6d Add branch relaxation pass (shamelessly stolen from PPC). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93554 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:19:05 +00:00
Anton Korobeynikov
05011a8aba Provide instruction sizes & encoding. No opcodes yet (but not needed so far). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93553 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:18:39 +00:00
Anton Korobeynikov
cb50e0bd60 Enable bit tests and setcc stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93552 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:18:18 +00:00
Anton Korobeynikov
0c1ba91a54 Add micro-optimization which allows us to fold imm into cmp. This allows us to save 1 word (sometimes) and reduce register pressure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93551 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:18:02 +00:00
Anton Korobeynikov
3af4a0b4cb Add instruction formats & support stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93550 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 21:17:13 +00:00
Jakob Stoklund Olesen
33cc8d6b55 Don't make changes to the MBB in MachineBasicBlock::canFallThrough(). 
This fixes the regression for -pre-regalloc-taildup in
MultiSource/Applications/lambda-0.1.3.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93541 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 20:00:12 +00:00
Jakob Stoklund Olesen
057d53993c Simplify logic. Any functional change is unintended. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93540 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:59:57 +00:00
Chris Lattner
9521c95f97 unbreak the build, grr symlinks. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93539 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:51:05 +00:00
David Greene
ac931c011f Add some debug routines to SelectionDAG to dump full DAGs. 
print/dumpWithDepth allows one to dump a DAG up to N levels deep.
dump/printWithFullDepth prints the whole DAG, subject to a depth limit
on 100 in the default case (to prevent infinite recursion).

Have CannotYetSelect to a dumpWithFullDepth so it is clearer exactly
what the non-matching DAG looks like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93538 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:43:23 +00:00
Chris Lattner
54482b472a fix a bug in range information for $42, eliminate an 
unneeded argument from ParseExpression.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93536 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:39:23 +00:00
Chris Lattner
0a3c5a54a1 add range information for mem X86Operand's, now all 
X86Operand's have range info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93535 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:33:43 +00:00
Chris Lattner
b4307b3370 extend MCAsmParser::ParseExpression and ParseParenExpression 
to return range information for subexpressions.  Use this to
provide range info for several new X86Operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93534 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:28:38 +00:00
Chris Lattner
1f19f0f31d give X86Operand a ctor and start passing SMLoc's into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93532 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:06:59 +00:00
Victor Hernandez
3a32865d58 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.
It also strips old llvm.dbg.declare intrinsics that did not pass metadata as the first argument.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93531 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 19:04:09 +00:00
Dale Johannesen
3752d2fe34 Revert 93499. After discussion with Chris we agreed 
FrameIndexes should be lowered, but the same way as
everything else (target dependent) rather than in a
special hacked way.  The lowering needs to be done
for eventual purposes of Dwarf generation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93530 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 18:58:14 +00:00
Chris Lattner
29ef9a21dd add range location info for registers, change 
X86Operand::Create* implementations to avoid
copy ctor use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93528 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 18:51:29 +00:00
Nate Begeman
3fe980b127 Hook up llc's -filetype=obj to use MCStreamer if an MCCodeEmitter is available. 
Remove most of old Mach-O Writer support, it has been replaced by MCMachOStreamer

Further refactoring to completely remove MachOWriter and drive the object file
writer with the AsmPrinter MCInst/MCSection logic is forthcoming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 18:51:18 +00:00
Chris Lattner
309264d1e4 clean up the memory management of the operands. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 18:44:13 +00:00
Chris Lattner
23075746a1 refactor ParseRegister to avoid using X86Operand as a temporary 
datastructure when parsing a mem operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93521 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 18:27:19 +00:00
Victor Hernandez
5f03238d62 Revert r93504 because older uses of llvm.dbg.declare intrinsics need to be auto-upgraded 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93515 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 17:36:47 +00:00
Jay Foad
5b3701256c Fix http://llvm.org/PR6028, an assertion failure when an UndefValue of 
integer type is used.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 08:32:58 +00:00
Bob Wilson
bfdcf3bd49 Change pre-regalloc tail duplication to only duplicate indirect branch blocks. 
The pre-regalloc pass caused some regressions in both compile time and
performance of the generated code, and it did not improve performance, except
for indirect branches.  I also moved the check for single-block loops to speed
up the common case when running the taildup pass before reg allocation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93505 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 06:29:17 +00:00
Victor Hernandez
283ba2fbb4 Improve llvm.dbg.declare intrinsic by referring directly to the storage in its first argument, via function-local metadata (instead of via a bitcast). 
This patch also cleans up code that expects there to be a bitcast in the first argument and testcases that call llvm.dbg.declare.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93504 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 03:37:48 +00:00
Dale Johannesen
bc971c1575 Lower FrameIndex operand of DEBUG_VALUE (specially) and 
print it as a comment on X86.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93499 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 01:54:55 +00:00
Anton Korobeynikov
f7ed979257 Fix cmp emission on msp430: we definitely should turn stuff like 
"icmp lhs, rhs" into "cmp rhs, lhs". This should fix PR5979.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93496 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 01:29:49 +00:00
Devang Patel
c9b16cc108 Do not use AT_specification die for static variables. It confuses gdb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93494 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 01:12:22 +00:00
Jim Grosbach
f4549b02a7 fix 80-column violations 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93487 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 00:36:15 +00:00
Jim Grosbach
03825f8401 Fix 80 column violations and clean up whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93484 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 00:32:47 +00:00
Devang Patel
f8b72ca6c8 Do not emit multiple AT_container_type attributes. 
We need to find a better way to emit this info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93481 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 00:26:31 +00:00
Jim Grosbach
867bbbfff7 Name change for consistency. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 00:22:18 +00:00
Jim Grosbach
5efaed3bf4 EmitAtomicCmpSwap() custome inserter needs to delete the MI passed in. EmitAtomicBinary() already does this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93479 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-15 00:18:34 +00:00
Jeffrey Yasskin
13c10c4e49 Teach PPC how to replaceMachineCodeForFunction correctly. (Fixes 
JITTest.FunctionIsRecompiledAndRelinked.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93475 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 23:15:26 +00:00
Eric Christopher
83c20d3fb3 Pad my commit stats by reducing indentation in this now separate 
commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93473 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 23:00:10 +00:00
Johnny Chen
51bc5612b3 Added 16-bit Thumb Load/Store immediate instructions with encoding bits so that 
the disassembler can properly decode Load/Store register/immediate instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 22:42:17 +00:00
Chris Lattner
9898671a74 Split the TargetAsmParser "ParseInstruction" interface in half: 
the new ParseInstruction method just parses and returns a list of
target operands.  A new MatchInstruction interface is used to
turn the operand list into an MCInst.

This requires new/deleting all the operands, but it also gives 
targets the ability to use polymorphic operands if they want to. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 22:21:20 +00:00
Anton Korobeynikov
5fcf52ccf3 Remove pseudo-MI in custom inserter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93467 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 22:09:11 +00:00
Dale Johannesen
cf0b76649b Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93463 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:50:17 +00:00
Eric Christopher
745d8c95ef Few minor changes that were requested. No functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93462 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:48:00 +00:00
Jim Grosbach
86e69fa901 Add comment explaining the necessity of r93456 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93459 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:38:31 +00:00
Chris Lattner
f007e853e2 prune #includes in TargetAsmParser.h 
Pass in SMLoc of instr opcode into ParseInstruction.
Make AsmToken be a class, not a struct.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:32:45 +00:00
Jim Grosbach
9f82da7cbf Dwarf EH prepare needs to be run after SjLj prepare. Otherwise, 
catch info can get misplaced when a selector ends up more than one block
removed from the parent invoke(s). This could happen when a landing pad is
shared by multiple invokes and is also a target of a normal edge from
elsewhere.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:22:16 +00:00
Chris Lattner
7659389d0d introduce MCParsedAsmOperand 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:21:40 +00:00
Chris Lattner
45220a8439 introduce the MCParsedAsmOperand class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93454 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:20:55 +00:00
Evan Cheng
1a67dd2d47 Small tweak to inline cost computation. Ext of i/fcmp results are mostly optimized away in codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93453 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 21:04:31 +00:00
Anton Korobeynikov
f4b6d88cda Remove spurious semicolon. 
Patch by Diego Iastrubni!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93450 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 20:19:51 +00:00
Victor Hernandez
e05f66ef2e In debug builds, assert that function-local metadata has only 1 parent function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 20:12:34 +00:00
Eric Christopher
2d59ae6a35 Reduce the inlining cost of functions that contain calls to easily, 
and frequently optimized functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 20:12:34 +00:00
Victor Hernandez
d7e6457c3f Simplify code that chooses when to enumerate function-local metadata operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 19:54:11 +00:00
Victor Hernandez
3cd7c3db99 Avoid modifying ValueEnumerator's MD ValueList by choosing which function-local MD to write based on the function currently being written 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 19:38:44 +00:00
Jakob Stoklund Olesen
09bf003983 ARM "l" constraint for inline asm means R0-R7, also for Thumb2. 
This is consistent with llvm-gcc's arm/constraints.md.

Certain instructions (e.g. CBZ, CBNZ) require a low register, even in Thumb2
mode.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 18:19:56 +00:00
Dan Gohman
ff00a55517 Fix a codegen abort seen in 483.xalancbmk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93417 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 03:08:49 +00:00
Victor Hernandez
8ea5d4c529 In WriteFunction(), write function-local metadata before we write the instructions, so instruction's references to metadata are fully resolved by the time they get written. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93403 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 01:50:08 +00:00
Victor Hernandez
559588b156 Fix printing of function-local metadata in AsmWriter 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93402 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 01:47:37 +00:00
Victor Hernandez
d0f20acf74 Clean up unnecessary return and brackets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93401 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 01:46:02 +00:00
Victor Hernandez
c7650b4d19 Add MDNode::getFunction(), which figures out the metadata's function, if it has function that it is local to. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 01:45:14 +00:00
Jakob Stoklund Olesen
069e100f9a Don't fold insufficiently aligned ldr/str into ldm/stm instructions. 
An unaligned ldr causes a trap, and is then emulated by the kernel with
awesome performance. The darwin kernel does not emulate unaligned ldm/stm
Thumb2 instructions, so don't generate them.

This fixes the miscompilation of Multisource/Applications/JM/lencod for Thumb2.

Generating unaligned ldr/str pairs from a 16-bit aligned memcpy is probably
also a bad idea, but that is beyond the scope of this patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93393 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-14 00:54:10 +00:00
Chris Lattner
5350f78323 this is an SSE-specific issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 23:29:11 +00:00
Chris Lattner
689339c50f X86 if conversion + tail merging issues from PR6032. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93372 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 23:28:40 +00:00
Bill Wendling
22f3b9faac When the visitSub method was split into visitSub and visitFSub, this xform was 
added to the FSub version. However, the original version of this xform guarded
against doing this for floating point (!Op0->getType()->isFPOrFPVector()).

This is causing LLVM to perform incorrect xforms for code like:

void func(double *rhi, double *rlo, double xh, double xl, double yh, double yl){
  double mh, ml;
  double c = 134217729.0;
  double up, u1, u2, vp, v1, v2;
        
  up = xh*c;
  u1 = (xh - up) + up;
  u2 = xh - u1;
        
  vp = yh*c;
  v1 = (yh - vp) + vp;
  v2 = yh - v1;
        
  mh = xh*yh;
  ml = (((u1*v1 - mh) + (u1*v2)) + (u2*v1)) + (u2*v2);
  ml += xh*yl + xl*yh;
        
  *rhi = mh + ml;
  *rlo = (mh - (*rhi)) + ml;
}

The last line was optimized away, but rl is intended to be the difference
between the infinitely precise result of mh + ml and after it has been rounded
to double precision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93369 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 23:23:17 +00:00
Chris Lattner
8da8d4b12a fix ELF section mangling stuff for weak symbols to not use 
obsolete Mangler interfaces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:29:21 +00:00
Victor Hernandez
2cd4244815 Fix comment typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93355 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:25:04 +00:00
Chris Lattner
4d2419d751 tidy 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93352 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:21:29 +00:00
Chris Lattner
a46a34431c reduce duplicate mangling logic by using MCSymbol::printMangledName. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93351 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:12:34 +00:00
Chris Lattner
4564ec9ca7 expose a static function as a static method on the MCSymbol class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:09:59 +00:00
Johnny Chen
12360917ef Fixed a couple of places for Thumb MOV where encoding bits are underspecified. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 21:00:26 +00:00
Jakob Stoklund Olesen
15913c999e Fix pasto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93342 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:54:39 +00:00
Chris Lattner
471f1e9dc0 stop the CBE from using deprecated Mangler stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:54:07 +00:00
Victor Hernandez
0c316416bd Write function-local metadata as a metadata subblock of a funciton block 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:37:33 +00:00
Victor Hernandez
ab9cd10721 Enumerate function-local metadata (and its types and operands) only during function-incorporation, global metadata continues to be enumerated during creation of ValueEnumerator 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:36:16 +00:00
Victor Hernandez
fab9e99c01 Parse function-local metadata inside function blocks 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:34:08 +00:00
Chris Lattner
cab16cc9a3 Use the GV version of getNameWithPrefix in TargetLoweringObjectFileCOFF:: 
SelectSectionForGlobal, unbreaking weak globals with no-name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:19:17 +00:00
Evan Cheng
eb18812f75 Commit some changes I had managed to lose last night while refactoring the code. Avoid change use of PHI instructions because it's not legal to insert any instructions before them. 
This fixes PR6027.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93335 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:16:39 +00:00
Chris Lattner
656bb20d61 just finish MCizing FnStubInfo which cleans it up and simplifies it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93334 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:13:16 +00:00
Chris Lattner
59b34fe55f don't call getNameWithPrefix repeatedly and unnecesarily. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93333 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:05:36 +00:00
Chris Lattner
0b4bad54f6 properly use MCSymbol to print the strings aquired from getNameWithPrefix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 19:00:57 +00:00
Benjamin Kramer
b357e06f67 Introduce Twine::toStringRef, a variant of toVector which avoids the copy if the 
twine can be represented as a single StringRef. Use the new methode to simplify
some twine users.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 12:45:23 +00:00
Evan Cheng
81d22d87de Re-enable extension optimization pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93313 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:45:40 +00:00
Chris Lattner
09533a404c upgrade and MC'ize a few uses of makeNameProper. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93310 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:08:33 +00:00
Chris Lattner
13b1e92e6c MC'ize this a bit and upgrade APIs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93309 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:04:24 +00:00
Chris Lattner
4d5f06fbe5 add a fixme, ELF MCSection isn't quite right and weak unnamed globals are broken 
on linux (even though they are pointless, they shouldn't ICE).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:02:14 +00:00
Evan Cheng
57d1d936fc For now, avoid issuing extract_subreg to reuse lower 8-bit, it's not safe in 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93307 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 08:01:32 +00:00
Evan Cheng
d89d5180d1 Add comment; refactor; avoid pulling in DT if it's not used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93306 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:59:13 +00:00
Chris Lattner
ee9250bb4f eliminate some uses of Mangler::makeNameProper. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93305 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:56:59 +00:00
Chris Lattner
b74978f8e5 don't add the \1 to the name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:50:21 +00:00
Chris Lattner
2f8cc26be4 remove uses of deprecated functions, this generates slightly 
different BlockAddress labels, but nothing semantically important.

Add a FIXME that BlockAddress codegen is broken if the LLVM BB has 
an empty name (e.g. strip was run).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93303 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:30:49 +00:00
Chris Lattner
dfbcb8c38b use the new form of getNameWithPrefix, not makeNameProper. 
Among other things, this would do very weird things if the 
basic block name had (e.g.) a space in it on darwin:
makeNameProper would add quotes, then the mcsymbol would 
escape the quotes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93302 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:16:53 +00:00
Chris Lattner
bf86e5df18 add new isSingleStringRef()/getSingleStringRef() methods to twine, 
and use them to avoid a copy of a string in getNameWithPrefix in
the common case.  It seems like Value::setName and other places 
should use this as well?


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93301 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:12:06 +00:00
Chris Lattner
0e7ab8cb07 ugh, my last patch just sped up a method and changed all the clients 
that I want to completely eliminate.  Add fixme's so I remember this
in the future, and add the missing helper that they should be upgraded
to use instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93300 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 07:01:09 +00:00
Chris Lattner
4813035b72 change Mangler::makeNameProper to return its result in a SmallVector 
instead of returning it in an std::string.  Based on this change:

1. Change TargetLoweringObjectFileCOFF::getCOFFSection to take a StringRef
2. Change a bunch of targets to call makeNameProper with a smallstring,
   making several of them *much* more efficient.
3. Rewrite Mangler::makeNameProper to not build names and then prepend
   prefixes, not use temporary std::strings, and to avoid other crimes.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 06:38:18 +00:00
Chris Lattner
36e69ae3c1 my mistake, Mangler::makeNameProper wants to take a twine, not a stringref! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 05:02:57 +00:00
Chris Lattner
1cb75460b6 change makeNameProper to take a stringref instead of std::string. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93295 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:55:33 +00:00
Chris Lattner
38c2b0a99c fix assert in AsmPrinter::EmitGlobalConstantLargeInt to match reality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:39:46 +00:00
Chris Lattner
5979dfff8e reduce nesting and code duplication in AsmPrinter::EmitGlobalConstantLargeInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93292 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:38:16 +00:00
Chris Lattner
3cc3a00570 reduce indentation and add a fast-path to EmitGlobalConstant for 8-byte 
integers on 64-bit systems.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:34:19 +00:00
Chris Lattner
fe0e7ed6b0 reduce indentation and use early exits in AsmPrinter::EmitConstantValueOnly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93290 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 04:29:19 +00:00
Victor Hernandez
3047384a0f Revert 93270 pending investigation of how stray non-constant values end up in ValueEnumerator's ValueList during WriteConstants() 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93289 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 03:18:30 +00:00
Evan Cheng
262a96edb4 Disable opt-ext pass to unbreak the build for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:51:43 +00:00
Evan Cheng
d9e385f411 Remove debug option I accidentally left in. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:43:20 +00:00
Ted Kremenek
ce3ad1565a Update CMake file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93283 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 01:02:47 +00:00
Jakob Stoklund Olesen
c5b7ef1519 Remove the JustSP single-register regclass. 
It was only being used by instructions with the t_addrmode_sp addressing mode,
and that is pattern matched in a way that guarantees SP is used. There is
never any register allocation done from this class.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:43:06 +00:00
Evan Cheng
7da9ecf967 Add a quick pass to optimize sign / zero extension instructions. For targets where the pre-extension values are available in the subreg of the result of the extension, replace the uses of the pre-extension value with the result + extract_subreg. 
For now, this pass is fairly conservative. It only perform the replacement when both the pre- and post- extension values are used in the block. It will miss cases where the post-extension values are live, but not used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:30:23 +00:00
Dale Johannesen
5f72a5ebc8 Further progration of metadata operands. The 
dumper doesn't really do what I want yet, but
at least it doesn't crash now.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-13 00:00:24 +00:00
Victor Hernandez
994a204570 Make WriteConstants() more robust against stray values in ValueEnumerator's ValueList 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93270 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 23:37:59 +00:00
Bob Wilson
86af655521 Fix a comment typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 22:18:56 +00:00
Chris Lattner
972a46c96a 1) Use the new SimplifyInstructionsInBlock routine instead of the copy 
in JT.

2) When cloning blocks for PHI or xor conditions, use
instsimplify to simplify the code as we go.  This allows us to 
squish common cases early in JT which opens up opportunities for
subsequent iterations, and allows it to completely simplify the
testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93253 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 20:41:47 +00:00
Chris Lattner
e234a30a28 add a helper function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 19:40:54 +00:00
Devang Patel
d77fdba573 Use Twine, instead of StringRef, for consistency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93249 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:57:56 +00:00
Devang Patel
26028f27dd Use ilist_tratis to autoinsert and remove NamedMDNode from MDSymbolTable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93247 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:34:06 +00:00
Evan Cheng
3bda20112e Eliminate or_not_add and just use AddedComplexity so isel tries or_is_add patterns first. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 18:31:19 +00:00
Duncan Sands
796248fdb1 Revert commit 93204, since it causes the assembler to barf 
on x86-64 linux with messages like this:
Error: Incorrect register `%r14' used with `l' suffix


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93242 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 17:46:16 +00:00
Duncan Sands
990c4b87e3 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93235 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 08:30:46 +00:00
Duncan Sands
e2de606e0b Tweak commit 91745, which changed target data for both Mingw and Cygwin, 
to not touch Cygwin: the change caused llvm-gcc build failures due to
long double getting the wrong size.  Patch by Aaron Gray.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 08:21:07 +00:00
Dan Gohman
f1b4d26e67 Reapply the MOV64r0 patch, with a fix: MOV64r0 clobbers EFLAGS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93229 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:42:54 +00:00
Dan Gohman
21c14e3649 Update a partially obsolete comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:32:35 +00:00
Dan Gohman
5c9cf19d1e Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 04:30:26 +00:00
Chris Lattner
797c440caf tidy up 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93222 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 02:07:50 +00:00
Chris Lattner
2249a0b1bd Teach jump threading to duplicate small blocks when the branch 
condition is a xor with a phi node.  This eliminates nonsense
like this from 176.gcc in several places:

 LBB166_84:
        testl   %eax, %eax
-       setne   %al
-       xorb    %cl, %al
-       notb    %al
-       testb   $1, %al
-       je      LBB166_85
+       je      LBB166_69
+       jmp     LBB166_85

This is rdar://7391699



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93221 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 02:07:17 +00:00
Evan Cheng
a5a81d7072 Add TargetInstrInfo::isCoalescableInstr. It returns true if the specified 
instruction is copy like where the source and destination registers can
overlap. This is to be used by the coalescable to coalesce the source and
destination registers of instructions like X86::MOVSX64rr32. Apparently
some crazy people believe the coalescer is too simple.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93210 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-12 00:09:37 +00:00
Chris Lattner
77beb479f5 some cleanup, and make it obvious that ProcessJumpOnPHI only works 
on branches by renaming it and checking for a branch at the call site.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93208 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 23:41:09 +00:00
Evan Cheng
b85071c736 Add manual ISD::OR fastisel selection routines. TableGen is no longer autogen them after 93152 and 93191. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:59:27 +00:00
Chris Lattner
53af2d13e7 reenable the piece that turns trunc(zext(x)) -> x even if zext has multiple uses, 
codegen has no apparent problem with the trunc version of this, because it turns
into a simple subreg idiom


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:49:40 +00:00
Chris Lattner
a958cbfe36 Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the 
trunc has multiple uses.  Codegen is not able to coalesce the subreg case 
correctly and so this leads to higher register pressure and spilling (see PR5997).

This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93200 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:45:25 +00:00
Victor Hernandez
92f238dd8f Consolidate ConvertGlobalValIDToValue, ConvertGlobalOrMetadataValIDToValue, and ConvertValIDToValue into a more powerful ConvertValIDToValue() that does all three's work 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:31:58 +00:00
Evan Cheng
199c4240fe Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 22:03:29 +00:00
Evan Cheng
05920b8146 Revert 93158. It's breaking quite a few x86_64 tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:13:41 +00:00
Jakob Stoklund Olesen
dd437ba15e Avoid adding PHI arguments for a predecessor that has gone away when a BRCOND was constant folded. 
This fixes PR5980.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93184 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 21:02:33 +00:00
Benjamin Kramer
7dd6107fcc Remove unused string functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93183 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:33:12 +00:00
Evan Cheng
ac000fa0ed Do not turn 8-bit OR to ADD since ADD8ri is not 3-addressfiable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93182 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:18:04 +00:00
Mon P Wang
fe240b1066 Disable transformation of select of two loads to a select of address and then a load if the 
loads are not in the default address space because the transformation discards src value info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 20:12:49 +00:00
Benjamin Kramer
7462b5dd99 Add StrInStrNoCase, a StringRef version of CStrInCStrNoCase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93174 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 19:45:18 +00:00
Devang Patel
23598502ef s/NextValueNo/NextMDValueNo while processing metadata. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93165 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 18:52:33 +00:00
Benjamin Kramer
c30837d6c1 Turns out llvm-gcc still uses SplitString with a vector. Add it back until I 
have a fix.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93163 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 18:44:35 +00:00
Benjamin Kramer
d4f195999a Reimplement getToken and SplitString as "StringRef helper functions" 
- getToken is modeled after StringRef::split but it can split on multiple
  separator chars and skips leading seperators.
- SplitString is a StringRef::split variant for more than 2 elements with the
  same behaviour as getToken.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93161 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 18:03:24 +00:00
Dan Gohman
e5dacc55ad Use a 32-bit and with implicit zero-extension instead of a 64-bit and if it 
has an immediate with at least 32 bits of leading zeros, to avoid needing to
materialize that immediate in a register first.

FileCheckize, tidy, and extend a testcase to cover this case.

This fixes rdar://7527390.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:58:34 +00:00
Dan Gohman
71c25b7d7b Re-instate MOV64r0 and MOV16r0, with adjustments to work with the 
new AsmPrinter. This is perhaps less elegant than describing them
in terms of MOV32r0 and subreg operations, but it allows the
current register to rematerialize them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:37:57 +00:00
Dan Gohman
7e0d64a49c Pattern top-level operators don't need to be restricted to a 
single user. The _su forms are intended for non-top-level nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:21:05 +00:00
Dan Gohman
9e83467baa Reword this comment to reference a more fundamental issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93154 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:14:46 +00:00
Evan Cheng
4b0345be30 Select an OR with immediate as an ADD if the input bits are known zero. This allow the instruction to be 3address-fied if needed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93152 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 17:03:47 +00:00
David Greene
95eb2eeea6 Implement a feature (-vector-unaligned-mem) to allow targets to 
ignore alignment requirements for SIMD memory operands.  This
is useful on architectures like the AMD 10h that do not trap on
unaligned references if a status bit is twiddled at startup time.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93151 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 16:29:42 +00:00
Victor Hernandez
5b7e48b56c Respond to Chris' review: 
Make InsertDbgValueIntrinsic() and get Offset take and recieve a uint64_t.
Get constness correct for getVariable() and getValue().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93149 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 07:45:19 +00:00
Chris Lattner
8e76764de8 add one more bitfield optimization, allowing clang to generate 
good code on PR4216:

_test_bitfield:                                             ## @test_bitfield
	orl	$32962, %edi
	movl	$4294941946, %eax
	andq	%rdi, %rax
	ret

instead of:

_test_bitfield:
        movl    $4294941696, %ecx
        movl    %edi, %eax
        orl     $194, %edi
        orl     $32768, %eax
        andq    $250, %rdi
        andq    %rax, %rcx
        movq    %rdi, %rax
        orq     %rcx, %rax
        ret

Evan is looking into the remaining andq+imm -> andl optimization.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 06:55:24 +00:00
Chris Lattner
7acc4b1281 Extend CanEvaluateZExtd to handle and/or/xor more aggressively in the 
BitsToClear case.  This allows it to promote expressions which have an
and/or/xor after the lshr, promoting cases like test2 (from PR4216) 
and test3 (random extample extracted from a spec benchmark).

clang now compiles the code in PR4216 into:

_test_bitfield:                                             ## @test_bitfield
	movl	%edi, %eax
	orl	$194, %eax
	movl	$4294902010, %ecx
	andq	%rax, %rcx
	orl	$32768, %edi
	andq	$39936, %rdi
	movq	%rdi, %rax
	orq	%rcx, %rax
	ret

instead of:

_test_bitfield:                                             ## @test_bitfield
	movl	%edi, %eax
	orl	$194, %eax
	movl	$4294902010, %ecx
	andq	%rax, %rcx
	shrl	$8, %edi
	orl	$128, %edi
	shlq	$8, %rdi
	andq	$39936, %rdi
	movq	%rdi, %rax
	orq	%rcx, %rax
	ret

which is still not great, but is progress.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93145 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 04:05:13 +00:00
Chris Lattner
789162a309 Remove the dead TD argument to CanEvaluateZExtd, and add a 
new BitsToClear result which allows us to start promoting
expressions that end with a lshr-by-constant.  This is
conservatively correct and better than what we had before
(see testcases) but still needs to be extended further.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 03:32:00 +00:00
Chris Lattner
8cf4f6f3dd improve comments, remove dead TD argument to CanEvaluateSExtd. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93143 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-11 02:43:35 +00:00
Chris Lattner
11ea812424 teach sext optimization to handle truncs from types that are not 
the dest of the sext.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 20:30:41 +00:00
Chris Lattner
9ee947c224 teach zext optimization how to deal with truncs that don't come from 
the zext dest type.  This allows us to handle test52/53 in cast.ll,
and allows llvm-gcc to generate much better code for PR4216 in -m64
mode:

_test_bitfield:                                             ## @test_bitfield
	orl	$32962, %edi
	movl	%edi, %eax
	andl	$-25350, %eax
	ret

This also fixes a bug handling vector extends, ensuring that the
mask produced is a vector constant, not an integer constant.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 20:25:54 +00:00
Chris Lattner
859c372e04 fix a buggy assertion, CreateIntegerCast should allow 
integer vectors as well as just integers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93126 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 20:21:42 +00:00
Mikhail Glushenkov
0d75d874bf Suppress a warning on gcc 4.4. 
warning: suggest parentheses around ‘&&’ within ‘||’.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93121 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 18:48:49 +00:00
Chris Lattner
aa9c894523 simplify CanEvaluateSExtd to return a bool now that we have a 
simpler profitability predicate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:57:20 +00:00
Chris Lattner
6954ceec1a the NumCastsRemoved argument to CanEvaluateSExtd is dead, remove it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:42:21 +00:00
Chris Lattner
dde5ee5d37 now that the cost model has changed, we can always consider 
elimination of a sign extend to be a win, which simplifies 
the client of CanEvaluateSExtd, and allows us to eliminate
more casts (examples taken from real code).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:40:50 +00:00
Victor Hernandez
24e64df7ec Compute isFunctionLocal in MDNode ctor or via argument in new function getWhenValsUnresolved(). 
Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:14:18 +00:00
Chris Lattner
f4fb91181c change the preferred canonical form for a sign extension to be 
lshr+ashr instead of trunc+sext.  We want to avoid type 
conversions whenever possible, it is easier to codegen expressions
without truncates and extensions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93107 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 07:08:30 +00:00
Chris Lattner
abff82d99e fix indentation of switch statements, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 06:59:55 +00:00
Chris Lattner
6091e0289b fix pasto that broke bootstrap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 06:50:04 +00:00
Chris Lattner
9e390ddf91 simplify CanEvaluateZExtd now that we don't care about the number of 
bits known clear in the result and don't care about the # casts 
eliminated.  TD is also dead but keeping it for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 02:50:04 +00:00
Chris Lattner
5324d80283 two changes: 
1) don't try to optimize a sext or zext that is only used by a trunc, let
   the trunc get optimized first.  This avoids some pointless effort in
   some common cases since instcombine scans down a block in the first pass.
2) Change the cost model for zext elimination to consider an 'and' cheaper
   than a zext.  This allows us to do it more aggressively, and for the next
   patch to simplify the code quite a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93097 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 02:39:31 +00:00
Chris Lattner
d26c9e183e enhance CanEvaluateZExtd to handle shift left and sext, allowing 
more expressions to be promoted and casts eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93096 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 02:22:12 +00:00
Chris Lattner
3f7dc880c4 remove an xform subsumed by EvaluateInDifferentType. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:35:55 +00:00
Julien Lerouge
5c1735a4df Fix nondeterministic behavior. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93093 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:07:22 +00:00
Chris Lattner
4f37978b90 clean up this xform by using m_Trunc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93092 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-10 01:04:31 +00:00