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Author SHA1 Message Date
Eric Christopher
d2592ff69b Pull these back out, they're a little too aggressive and time 
consuming for a simple optimization.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95671 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 17:29:18 +00:00
Johnny Chen
2d658df873 Added vcvtb/vcvtt (between half-precision and single-precision, VFP). 
For disassembly only.

A8.6.300


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95669 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 17:21:56 +00:00
Jakob Stoklund Olesen
00350dbd71 Remember to update live-in lists when coalescing physregs. 
Patch by M Wahab!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95668 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 17:20:11 +00:00
Chris Lattner
97dce2a9aa move PR3462 to here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95650 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 05:55:14 +00:00
Chris Lattner
1728472726 add a note from PR6194 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95649 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 05:45:29 +00:00
Dale Johannesen
d94998f525 Skip DEBUG_VALUE in some places where it was affecting codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95647 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 02:01:46 +00:00
Devang Patel
8581e0147c Add declaration attribute to a variable DIE, if there is a separate DIE for the definition. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95646 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 01:58:33 +00:00
Chris Lattner
e576f292ee simplify this code, duh. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 01:14:06 +00:00
Chris Lattner
e538db4fb0 fix PR6193, only considering sign extensions *from i1* for this 
xform.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95642 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 01:12:41 +00:00
Eric Christopher
940ab54755 Add file in here too. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95641 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 01:11:03 +00:00
Chris Lattner
30d9a644d5 make -show-inst be formatted a bit nicer. Before: 
movl	$3735928559, a          ## inst: <MCInst 1273 <MCOperand Reg:0> <MCOperand Imm:1> <MCOperand Reg:0> <MCOperand Expr:(a)> <MCOperand Reg:0> <MCOperand Expr:(3735928559)>>

after:

	movl	$3735928559, a          ## <MCInst #1273
                                        ##   <MCOperand Reg:0>
                                        ##   <MCOperand Imm:1>
                                        ##   <MCOperand Reg:0>
                                        ##   <MCOperand Expr:(a)>
                                        ##   <MCOperand Reg:0>
                                        ##   <MCOperand Expr:(3735928559)>>





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95637 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:54:51 +00:00
Lang Hames
0b23dc0cc8 Fixed a bug in the PBQP allocator's findCoalesces method. 
Previously spill registers, whose def indexes are not defined, would sometimes be improperly marked as coalescable with conflicting registers. The new findCoalesces routine conservatively assumes that any register with at least one undefined def is not coalescable with any register it interferes with.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95636 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:50:27 +00:00
Chris Lattner
e16b0fc3cb Implement x86 asm parsing support for %st and %st(4) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95634 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:49:22 +00:00
Lang Hames
ddea94a819 Added copy sensible construction & assignment to PBQP graphs and fixed a memory access bug in the heuristic solver. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95633 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:45:48 +00:00
Eric Christopher
1926b648e1 Add a new pass to do llvm.objsize lowering using SCEV. 
Initial skeleton and SCEVUnknown lowering implemented,
the rest should come relatively quickly.  Move testcase
to new directory.

Move pass to right before SimplifyLibCalls - which is
moved down a bit so we can take advantage of a few opts.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:35:38 +00:00
Chris Lattner
b8d6e98e56 pass stringref by value instead of by const& 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:34:28 +00:00
Chris Lattner
cf031f6d66 move PR6212 to this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95624 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:11:10 +00:00
Dan Gohman
5938a3e681 Implement AsmPrinter support for several more operators which have 
direct MCExpr equivalents. Don't use MCExpr::Shr because it isn't
consistent between targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95620 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 00:02:37 +00:00
Dan Gohman
036c130e90 Document that MCExpr::Mod is actually remainder. 
Document that MCExpr::Div, Mod, and the comparison operators are all
signed operators.

Document that the comparison operators' results are target-dependent.

Document that the behavior of shr is target-dependent.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95619 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:58:47 +00:00
Chris Lattner
8609fda0f7 fix some problems handling large vectors reported in PR6230 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95616 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:56:03 +00:00
Chris Lattner
c133457269 this is done, tested by CodeGen/ARM/iabs.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95609 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:48:10 +00:00
Jim Grosbach
a87ded2695 tighten up eh.setjmp sequence a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95603 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:22:00 +00:00
Chris Lattner
9517554458 now that @GOTOFF is no longer represented as a suffix on a 
MCSymbol, we can remove the 'suffix' argument of 
GetBlockAddressSymbol.  Do so.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:10:08 +00:00
Chris Lattner
3484110c67 unify the paths for external symbols and global variables: 
2 files changed, 48 insertions(+), 83 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95599 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 23:03:41 +00:00
Chris Lattner
8fb2e233a0 switch the rest of the "@ concatentation" logic in the X86 
backend to use X86MCTargetExpr, simplifying a bunch of code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95595 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:52:47 +00:00
Sean Callanan
3bdbdd06c8 Fixed the AT&T AsmLexer to report the proper strings 
for register tokens.  Before, if it encountered
'%al,' it would report 'al,' as the token.  Now it
correctly reports '%al'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95594 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:50:23 +00:00
Chris Lattner
017ec35e28 switch ELF @GOTOFF references to use X86MCTargetExpr. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95593 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:33:55 +00:00
Dan Gohman
54e72eca0c ConstantFoldConstantExpression can theoretically return the original 
expression; don't go into an infinite loop if it does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95591 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:19:11 +00:00
Chris Lattner
25ceb5f317 add an x86 implementation of MCTargetExpr for 
representing @GOT and friends.  Use it for
personality references as a first use.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95588 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:09:08 +00:00
Chris Lattner
df9c4380ee don't make hte dtor private or we can't construct the class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95587 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:07:36 +00:00
Johnny Chen
15b423f772 Add VCVTR (between floating-point and integer, VFP) for disassembly purpose. 
The 'R' suffix means the to-integer operations use the rounding mode specified
by the FPSCR, encoded as Inst{7} = 0.

A8.6.295


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95584 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:02:41 +00:00
Dan Gohman
618f17702d When CodeGen'ing unoptimized code, there may be unfolded constant expressions 
in global initializers. Instead of aborting, attempt to fold them on the
spot. If folding succeeds, emit the folded expression instead.

This fixes PR6255.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:02:38 +00:00
Dan Gohman
baf0c67988 Add const qualifiers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 22:00:06 +00:00
Dale Johannesen
8ac38f2a61 Apply the 95471 fix to SelectionDAGBuilder as well; 
we can get in here if FastISel gives up in a block.
(Actually the two copies of this need to be unified.  Later.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95579 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 21:53:27 +00:00
Dan Gohman
c2e93b255e In guaranteed tailcall mode, don't decline the tailcall optimization 
for blocks ending in "unreachable".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95565 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 20:34:14 +00:00
Dan Gohman
1797ed50f4 Rename the PerformTailCallOpt variable to GuaranteedTailCallOpt to reflect 
its current purpose.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95564 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 20:27:50 +00:00
Johnny Chen
7edd8e38c4 Add VCMP (VFP floating-point compare without 'E' bit set) for disassembly purpose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:41:48 +00:00
Chris Lattner
5d917a8952 add scaffolding for target-specific MCExprs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95559 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 19:41:07 +00:00
Johnny Chen
23401d6f8c Added VMOVRRS/VMOVSRR to ARMInstrVFP.td for disassembly purpose. 
A8.6.331 VMOV (between two ARM core registers and two single-precision registers)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95548 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 17:26:09 +00:00
Torok Edwin
acf2a65786 Fix x86 JIT stub on MSVC. 
Thanks to Kristaps Straupe for noticing the bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95537 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-08 08:37:27 +00:00
Nick Lewycky
337c6a8edd Make the destructor for TypeMapBase protected. Spotted by Duncan Sands with 
cppcheck!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95527 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-07 21:13:46 +00:00
Duncan Sands
3dc32ed569 Give DwarfPrinter a protected (but not virtual) destructor. Cppcheck 
warns about this base class not having a virtual destructor, but since
this class has no virtual methods and neither it or the types derived
from it has a destructor, a protected trivial destructor will do (and
shuts cppcheck up) the trick without the cost of introducing a vtable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-07 21:09:22 +00:00
Bruno Cardoso Lopes
6059b8551d Add suport for VASTART on Mips. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95506 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 21:00:02 +00:00
Bruno Cardoso Lopes
b37a742333 First step towards varargs support in Mips: 
- o32 cc must pass all arguments in A0...A3 and stack regardless
if its type (but respect the alignment).
- Store all variable arguments back to the caller stack.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95500 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 19:20:49 +00:00
Evan Cheng
00a99a3584 Run codegen dce pass for all targets at all optimization levels. Previously it's 
only run for x86 with fastisel. I've found it being very effective in
eliminating some obvious dead code as result of formal parameter lowering
especially when tail call optimization eliminated the need for some of the loads
from fixed frame objects. It also shrinks a number of the tests. A couple of
tests no longer make sense and are now eliminated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95493 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 09:07:11 +00:00
Bob Wilson
5d48c6d2cb Fix an uninitialized value. Radar 7609421. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95488 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 05:55:20 +00:00
Rafael Espindola
2f82ca904a Fix alignment on ppc linux. This fixes the build of crtend.o 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 03:32:21 +00:00
Evan Cheng
f22f9b35d6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95475 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 03:28:46 +00:00
Dale Johannesen
dc91856575 After Victor's latest commits I am seeing null 
addresses in dbg.declare; ignore this for the
moment to prevent things from breaking.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95471 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 02:26:02 +00:00
Victor Hernandez
c8d7b85ba1 Linker should not remap null operands of metadata 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:31:55 +00:00