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13983 Commits

Author SHA1 Message Date
Chris Lattner
0d7b0aa760 enhance llvm-mc -show-inst to print the enum of an instruction, like so: 
testb	%al, %al                ## <MCInst #2412 TEST8rr
                                        ##   <MCOperand Reg:2>
                                        ##   <MCOperand Reg:2>>
	jne	LBB1_7                  ## <MCInst #938 JNE_1
                                        ##   <MCOperand Expr:(LBB1_7)>>



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95935 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 22:57:32 +00:00
Chris Lattner
7e85180d15 add a new MCInstPrinter::getOpcodeName interface, when it is 
implemented, llvm-mc --show-inst now uses it to print the
instruction opcode as well as the number.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 22:39:10 +00:00
Chris Lattner
b8db331588 improve encoding information for branches. We now know they have 
8 or 32-bit immediates, which allows the new encoder to handle
them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95927 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 21:45:31 +00:00
Chris Lattner
8d31de6268 make getFixupKindInfo return a const reference, allowing 
the tables to be const.  Teach MCCodeEmitter to handle
the target-indep kinds so that we don't crash on them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95924 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 21:27:18 +00:00
Chris Lattner
11eafa8bed switch to target-indep fixups for 1/2/4/8 byte data. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95920 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 21:17:54 +00:00
Johnny Chen
e4c7f0f6ec Added LDRT/LDRBT/STRT/STRBT for disassembly only. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 20:31:08 +00:00
Chris Lattner
8b442a814e unbreak the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 19:52:11 +00:00
Chris Lattner
bd13fb6254 refactor the conditional jump instructions in the .td file to 
use a multipattern that generates both the 1-byte and 4-byte 
versions from the same defm


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95901 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 19:25:55 +00:00
Johnny Chen
811663f799 Forgot to also check in this file for vcvt (floating-point <-> fixed-point, VFP). 
Sorry!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95892 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 18:47:03 +00:00
Johnny Chen
27bb8d0a88 Added VCVT (between floating-point and fixed-point, VFP) for disassembly. 
A8.6.297


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 18:17:16 +00:00
Johnny Chen
c6f7b27fda Added BKPT/tBKPT (breakpoint) to the instruction table for disassembly purpose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95884 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 18:12:29 +00:00
Johnny Chen
ba6e033f4f Add pseudo instruction TRAP for disassembly, which is encoded according to A5-21 
as the "Permanently UNDEFINED" instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 17:14:31 +00:00
Chris Lattner
ecfb3c3d66 dont' call getX86RegNum on X86::RIP, it doesn't like that. This 
fixes the remaining x86-64 jit failures afaik.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95867 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 08:45:56 +00:00
Chris Lattner
5526b69901 fix a really nasty bug I introduced in r95693: r12 (and r12d, 
r12b, etc) also encodes to a R/M value of 4, which is just
as illegal as ESP/RSP for the non-sib version an address.

This fixes x86-64 jit miscompilations of a bunch of programs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 08:41:21 +00:00
Chris Lattner
8b0f7a7d86 Add and commonize encoder support for all immediates. 
Stub out some dummy fixups to make things work.

We can now emit fixups like this:
	subl	$20, %esp               ## encoding: [0x83,0xec,A]
                                        ##   fixup A - offset: 2, value: 20, kind: fixup_1byte_imm

Emitting $20 as a single-byte fixup to be later resolved
by the assembler is ridiculous of course (vs just emitting
the byte) but this is a failure of the matcher, which 
should be producing an imm of 20, not an MCExpr of 20.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 07:06:31 +00:00
Chris Lattner
a38c707d82 generalize EmitDisplacementField to work with any size 
and rename it to EmitImmediate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:54:23 +00:00
Chris Lattner
0e410918b8 eliminate the dead IsPCRel argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:51:36 +00:00
Chris Lattner
1b67060645 eliminate the dead "PCAdj" logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-11 06:49:52 +00:00
Mon P Wang
f7ea6c3ee8 The previous fix of widening divides that trap was too fragile as it depends on custom 
lowering and requires that certain types exist in ValueTypes.h.  Modified widening to
check if an op can trap and if so, the widening algorithm will apply only the op on
the defined elements.  It is safer to do this in widening because the optimizer can't
guarantee removing unused ops in some cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95823 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 23:37:45 +00:00
Eli Friedman
11d91e80b4 A few missed optimizations; the last one could have a significant impact on 
code with lots of bitfields.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:26:04 +00:00
Daniel Dunbar
1b6c060591 MC/X86 AsmMatcher: Fix a use after free spotted by d0k, and de-XFAIL 
x86_32-encoding.s in on expectation of it passing.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95806 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 21:19:28 +00:00
Johnny Chen
85d5a89f8d Added NOP, DBG, SVC to the instruction table for disassembly purpose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95784 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 18:02:25 +00:00
Dan Gohman
f451cb870e Fix "the the" and similar typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95781 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 16:03:48 +00:00
Chris Lattner
5dccfadbf4 emit some simple (and probably incorrect) fixups for symbolic 
displacement values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95773 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:52:12 +00:00
Chris Lattner
37ce80eca3 keep track of what the current byte being emitted is 
throughout the X86 encoder.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:41:02 +00:00
Chris Lattner
8496a26113 simplify displacement handling, emit displacements by-operand 
even for the immediate case.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95770 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 06:30:00 +00:00
Daniel Dunbar
5d5a1e13a1 MC: Switch MCFixup to just hold an MCExpr pointer instead of index into the 
MCInst it came from.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95767 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 04:47:08 +00:00
Chris Lattner
8e089a9e4d print all the newlines at the end of instructions with 
OutStreamer.AddBlankLine instead of textually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95734 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:36:00 +00:00
Kevin Enderby
40fe18f66e Fix the encoding of the movntdqa X86 instruction. It was missing the 0x66 
prefix which is part of the opcode encoding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:10:31 +00:00
Chris Lattner
5d672cfab0 Add ability for MCInstPrinters to add comments for instructions. 
Enhance the x86 backend to show the hex values of immediates in
comments when they are large.  For example:

        movl    $1072693248, 4(%esp)    ## imm = 0x3FF00000



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-10 00:10:18 +00:00
David Greene
51898d7a89 TableGen fragment refactoring. 
Move some utility TableGen defs, classes, etc. into a common file so
they may be used my multiple pattern files.  We will use this for
the AVX specification to help with the transition from the current
SSE specification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 23:52:19 +00:00
Johnny Chen
4814e711ab Add VBIF/VBIT for disassembly only. 
A8.6.279


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95713 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 23:05:23 +00:00
Daniel Dunbar
869fe12cc0 MC/X86: Add a dummy implementation of MCFixup generation for hacky X86 MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95709 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 23:00:03 +00:00
Daniel Dunbar
73c557458c MC: First cut at MCFixup, for getting fixup/relocation information out of an MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 22:59:55 +00:00
Johnny Chen
c9745049e6 Added VMRS/VMSR for disassembly only. 
A8.6.335 & A8.6.336


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 22:35:38 +00:00
Chris Lattner
a8168ec732 port encoder enhancements over to the new encoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:57:34 +00:00
Chris Lattner
9e8528fc5c fix X86 encoder to output [disp] only addresses with no SIB byte 
in X86-32 mode.  This is still required in x86-64 mode to avoid
forming [disp+rip] encoding.  Rewrite the SIB byte decision logic
to be actually understandable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:47:19 +00:00
Chris Lattner
32f9a2c54e revert r95689: getX86RegNum(BaseReg) != N86::ESP is 
a confusing idiom to check for ESP or RSP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95690 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:21:26 +00:00
Chris Lattner
203efab2a5 simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95689 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 21:00:12 +00:00
Chris Lattner
518bb53485 move target-independent opcodes out of TargetInstrInfo 
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95687 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 19:54:29 +00:00
Jim Grosbach
4152778605 Radar 7417921 
tMOVCCi pattern only valid for low registers, as the Thumb1 mov immediate to
register instruction only works with low registers. Allowing high registers
for the instruction resulted in the assembler choosing the wide (32-bit)
encoding for the mov, but LLVM though the instruction was only 16 bits wide,
so offset calculations for constant pools became incorrect, leading to
out of range constant pool entries.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-09 19:51:37 +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
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
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
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
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
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
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
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
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
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
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
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
Jakob Stoklund Olesen
570a4a5d9c Reintroduce the InlineHint function attribute. 
This time it's for real! I am going to hook this up in the frontends as well.

The inliner has some experimental heuristics for dealing with the inline hint.
When given a -respect-inlinehint option, functions marked with the inline
keyword are given a threshold just above the default for -O3.

We need some experiments to determine if that is the right thing to do.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95466 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 01:16:28 +00:00
Bob Wilson
e6373eb826 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-06 00:24:38 +00:00
Chris Lattner
8f60e4d679 fix incorrect encoding of SBB8mi that Kevin noticed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:56:11 +00:00
Chris Lattner
3f1118310e fix a case where we'd mis-encode fisttp because of an incorrect (and 
redundant with a correct one) pattern that was added for the disassembler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:49:06 +00:00
Chris Lattner
faa75f6f6f add note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:48:33 +00:00
Chris Lattner
39a612e6f9 port X86InstrInfo::determineREX over to the new encoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 22:10:22 +00:00
Chris Lattner
00cb3fe786 wire up 64-bit MCCodeEmitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95438 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:51:35 +00:00
Chris Lattner
be1778fea7 really kill off the last MRMInitReg inst, remove logic from encoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:34:18 +00:00
Chris Lattner
28c1d29b09 lower the last of the MRMInitReg instructions in MCInstLower. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95435 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:30:49 +00:00
Chris Lattner
35e0e84f93 teach X86MCInstLower to lower the MOV32r0 and MOV8r0 
pseudo instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95433 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:21:06 +00:00
Chris Lattner
ff928976f8 genericize helpers, use them for MOV16r0/MOV64r0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95432 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:15:57 +00:00
Chris Lattner
c74e333ecc factor code better in X86MCInstLower::Lower, teach it to 
lower the SETB* instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95431 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 21:13:48 +00:00
Chris Lattner
82ed17eb47 implement the rest of the encoding types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95414 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:37:31 +00:00
Chris Lattner
74a2151392 move functions for decoding X86II values into the X86II namespace. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95410 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:24:13 +00:00
Chris Lattner
a62fe66f99 constant propagate a method away. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:20:30 +00:00
Chris Lattner
a3a0db0121 change getSizeOfImm and getBaseOpcodeFor to just take 
TSFlags directly instead of a TargetInstrDesc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95405 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:16:26 +00:00
Chris Lattner
daa4555793 add some more encodings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95403 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 19:04:37 +00:00
Johnny Chen
7acca6707b VMOVRRD and VMOVDRR both have Inst{7-6} = 0b00. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95397 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 18:04:58 +00:00
Chris Lattner
0e73c39c70 implement the non-relocation forms of memory operands 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95368 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 06:16:07 +00:00
Evan Cheng
5f94193b36 Handle tail call with byval arguments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95351 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 02:21:12 +00:00
Chris Lattner
1ac23b1038 start adding MRMDestMem, which requires memory form mod/rm encoding 
to start limping.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 02:18:40 +00:00
Chris Lattner
28249d98e1 Add a few more encodings, we can now encode all of: 
pushl	%ebp
	movl	%esp, %ebp
	movl	$42, %eax
	popl	%ebp
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-05 01:53:19 +00:00
Evan Phoenix
85bb54f964 Disable external stubs for X86-32 and X86-64 
Instruction selection for X86 now can choose an instruction
sequence that will fit any address of any symbol, no matter
the pointer width. X86-64 uses a mov+call-via-reg sequence
for this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 19:56:59 +00:00
Chris Lattner
7db21bdb7d move the PR6214 microoptzn to this file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95299 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 07:32:01 +00:00
Evan Cheng
1f2fda97b1 Re-enable x86 tail call optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95295 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:47:24 +00:00
Chris Lattner
87c06d6179 add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 06:34:01 +00:00
Evan Cheng
dcea16313d Indirect tail call has to go through a call preserved register since it's after callee register pops. X86 isel lowering is using EAX / R11 and it was somehow adding that to function live out. That prevented the real function return register from being added to the function live out list and bad things happen. 
This fixes 483.xalancbmk (with tail call opt).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 02:40:39 +00:00
Dale Johannesen
c4b94e02af Rewrite FP constant handling in DEBUG_VALUE yet 
again, so it more or less handles long double.
Restore \n removed in latest MC frenzy.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-04 01:33:43 +00:00
Chris Lattner
1e80f403e2 enhance new encoder to support prefixes + RawFrm 
instructions with no operands.  It can now handle

define void @test2() nounwind { ret void }



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:57:59 +00:00
Chris Lattner
92b1dfe5d8 set up some infrastructure, some minor cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:43:43 +00:00
Evan Cheng
8148ae8847 Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:40:40 +00:00
Chris Lattner
4576247928 stub out a new X86 encoder, which can be tried with 
-enable-new-x86-encoder until its stable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:24:49 +00:00
Chris Lattner
ce79a25980 rename createX86MCCodeEmitter to more accurately reflect what it creates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:14:33 +00:00
Kevin Enderby
12ce0de462 Added support for X86 instruction prefixes so llvm-mc can assemble them. The 
Lock prefix, Repeat string operation prefixes and the Segment override prefixes.
Also added versions of the move string and store string instructions without the
repeat prefixes to X86InstrInfo.td. And finally marked the rep versions of
move/store string records in X86InstrInfo.td as isCodeGenOnly = 1 so tblgen is
happy building the disassembler files.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 21:04:42 +00:00
Chris Lattner
beb42691b1 reapply r95206, this time actually delete the code I'm replacing in the third stub case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95209 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 06:42:38 +00:00
Chris Lattner
8427d2b0c6 revert r95206, it is apparently causing bootstrap failure on i386-darwin9 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95208 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 06:41:18 +00:00
Chris Lattner
ce2a725a72 make the x86 backend emit darwin stubs through mcstreamer 
instead of textually.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 06:21:16 +00:00
Chris Lattner
d269a6e460 make MachineModuleInfoMachO hold non-const MCSymbol*'s instead 
of const ones.  non-const ones aren't very useful, because you can't
even, say, emit them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 06:18:30 +00:00
Evan Cheng
86809ccdad Allow all types of callee's to be tail called. But avoid automatic tailcall if the callee is a result of bitcast to avoid losing necessary zext / sext etc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 03:28:02 +00:00
Chris Lattner
d26a80f666 don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction, 
.o files don't like that.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95187 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:49:49 +00:00
Chris Lattner
99d806186e rename printMachineInstruction -> EmitInstruction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95184 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:41:03 +00:00
Chris Lattner
850d2e2a1b print instructions through the mcstreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95181 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:16:28 +00:00
Chris Lattner
db0273184b emit instructions through the streamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95180 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:15:03 +00:00
Chris Lattner
c760be99db Finally eliminate printMCInst and send instructions through 
the streamer.  Demo:

$ cat t.ll 
define i32 @test() nounwind {
  ret i32 42
}
$ llc t.ll -o -
...
_test: 
	movl	$42, %eax
	ret
$ llc t.ll -o t.o -filetype=obj
$ otool -tv t.o 
t.o:
(__TEXT,__text) section
_test:
00000000	movl	$0x0000002a,%eax
00000005	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95179 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:13:25 +00:00
Chris Lattner
d1ff72b8a7 rejigger the world so that EmitInstruction prints the \n at 
the end of the instruction instead of expecting the caller to
do it.  This currently causes the asm-verbose instruction 
comments to be on the next line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95178 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:09:55 +00:00
Chris Lattner
0d883e3f84 sink handling of target-independent machine instrs (other 
than DEBUG_VALUE :(  ) into the target indep AsmPrinter.cpp
file.   This allows elimination of the 
NO_ASM_WRITER_BOILERPLATE hack among other things.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95177 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 01:00:52 +00:00
Dale Johannesen
b0e94241dd Print FPImm a less kludgy way; APFloat.toString seems 
to have some problems anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-03 00:36:40 +00:00
Evan Cheng
90567c3560 ByVal frame object size should be that of the byval argument, not the size of the type which is just a pointer. This is not known to break stuff but is wrong nevertheless. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95163 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:58:13 +00:00
Jim Grosbach
985d45dea3 As of r79039, we still try to eliminate the frame pointer on leaf functions, 
even when -disable-fp-elim is specified.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95161 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:56:14 +00:00
Evan Cheng
022d9e1cef Revert 95130. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95160 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:55:14 +00:00
Dale Johannesen
9d73d78f45 Accept floating point immediates in DEBUG_VALUE. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95159 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:54:23 +00:00
Daniel Dunbar
e7070e9006 AsmParser/X86: Add temporary hack to allow parsing "sal". Eventually we need 
some mechanism for specifying alternative syntaxes, but I'm not sure what form
that should take yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:46:47 +00:00
Chris Lattner
56591ab218 refactor code so that LLVMTargetMachine creates the asmstreamer and 
mccontext instead of having AsmPrinter do it.  This allows other 
types of MCStreamer's to be passed in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 23:37:42 +00:00
Chris Lattner
55fed86353 tidy some targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95146 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 22:13:21 +00:00
Chris Lattner
7f89fdae34 remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95144 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 22:03:00 +00:00
Chris Lattner
fc89bc903c detemplatize the ppc code emitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95142 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:55:58 +00:00
Chris Lattner
5335bce43d remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95141 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:52:03 +00:00
Chris Lattner
fce4aef806 add a definition for ID. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95140 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:49:29 +00:00
Chris Lattner
33fabd7cc1 detemplatize ARM code emitter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95138 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:48:51 +00:00
Daniel Dunbar
7b9147afa7 MCAsmParser/X86: Represent absolute memory operands as CodeGen does, with scale 
== 1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95137 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:44:16 +00:00
Daniel Dunbar
1945e179e1 MCCodeEmitter/X86: Handle tied registers better when converting MCInst -> 
MCMachineInstr. This also fixes handling of tied registers for MRMSrcMem
instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95136 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:44:10 +00:00
Chris Lattner
e0faa54705 remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95134 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:38:59 +00:00
Chris Lattner
782ebe47bb detemplatize alpha code emission, it is now JIT specific. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95133 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:35:47 +00:00
Chris Lattner
f1d6b107d2 eliminate all the dead addSimpleCodeEmitter implementations. 
eliminate random "code emitter" stuff in Alpha, except for
the JIT path.  Next up, remove the template cruft.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:31:47 +00:00
Evan Cheng
942619695f Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:29:10 +00:00
Chris Lattner
211edae484 eliminate FileModel::Model, just use CodeGenFileType. The client 
of the code generator shouldn't care what object format a target
uses.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95124 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 21:06:45 +00:00
Chris Lattner
4db361395b remove the remnants of TargetMachOWriterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95114 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 19:41:23 +00:00
Johnny Chen
9474d550ff Added t2BFI (Bitfield Insert) entry for disassembler, with blank pattern field. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95112 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 19:31:58 +00:00
Chris Lattner
6914b8611a remove PPCMachOWriterInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95111 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 19:23:55 +00:00
Evan Cheng
b2c9290a01 Perform sibcall in some cases when arguments are passes memory. Look for cases 
where callee's arguments are already in the caller's own caller's stack and
they line up perfectly. e.g.

extern int foo(int a, int b, int c);

int bar(int a, int b, int c) {
  return foo(a, b, c);
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-02 02:22:50 +00:00
Johnny Chen
92e63d817f MOVi16 should also be marked as a UnaryDP instruction, i.e., it doesn't have a 
Rn operand.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95025 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 23:06:04 +00:00
Evan Cheng
7276c8c2b5 Fix PR6196. GV callee may not be a function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95017 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 22:40:09 +00:00
Bruno Cardoso Lopes
9a720b0b0e MulOp is actually a Mips specific node, so do the match using Opcode. This fixes PR6192 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 12:16:39 +00:00
Evan Cheng
0a4fd46d9e Undo r94946 now all the tests are passing again. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94970 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 02:13:39 +00:00
Bruno Cardoso Lopes
bdef66bf7f Fix stack size bug while using o32 abi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 02:03:24 +00:00
Johnny Chen
48d5ccf86a For MVNr and MVNs, we need to set Inst{25} = 0 so as not to confuse the decoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 11:22:28 +00:00
Evan Cheng
aa92bec010 Change TAILJMP's to be varargs and transfer implicit uses over from TCRETURN's. Otherwise the missing uses can make post-regalloc scheduling do bad things. This fixes 403.gcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 07:28:44 +00:00
Evan Cheng
e626b0f6b1 Fix a missing check from my last commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 07:27:31 +00:00
Evan Cheng
843bd699f6 Avoid recursive sibcall's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94946 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 06:44:49 +00:00
Eli Friedman
1144d7e3cc Remove a completed item, add a couple new ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94945 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 04:55:32 +00:00
Sean Callanan
894c1af05f Moved InstallLexer() from the X86-specific AsmLexer 
to the TargetAsmLexer class so that clients can
actually use the TargetAsmLexer they get from a
Target.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94940 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 02:28:18 +00:00
Bruno Cardoso Lopes
3ed6f876c8 Fix PR6144. Reload GP before the emission of CALLSEQ_END to guarantee the right reload order 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 18:32:07 +00:00
Bruno Cardoso Lopes
5e194602a4 Fix mov.d out register by using the FFR register class directly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 18:29:19 +00:00
Anton Korobeynikov
90cfc130d6 Fix a gross typo: ARMv6+ may or may not support unaligned memory operations. 
Even if they are suported by the core, they can be disabled
(this is just a configuration bit inside some register).

Allow unaligned memops on darwin and conservatively disallow them otherwise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 14:08:12 +00:00
Evan Cheng
a6bff982c1 Allow more tailcall optimization: calls with inputs that are all passed in registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 01:22:00 +00:00
Evan Cheng
1d885c0ede Don't forget to transfer target flag when inserting a tailcall instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94872 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 01:16:15 +00:00
Daniel Dunbar
b834f5d13d MC/X86 AsmParser: Handle absolute memory operands correctly. We were doing 
something totally broken and parsing them as immediates, but the .td file also
had the wrong match class so things sortof worked. Except, that is, that we
would parse
  movl $0, %eax
as
  movl 0, %eax
Feel free to guess how well that worked.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94869 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 01:02:48 +00:00
Daniel Dunbar
728e5eb927 X86.td: Refactor to bring operands that use print_pcrel_imm together. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94861 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 00:24:12 +00:00
Daniel Dunbar
ec2b1f1beb AsmMatcher/X86: Separate out sublass for memory operands that have no segment 
register, and use to cleanup a FIXME in X86AsmParser.cpp.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94859 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 00:24:00 +00:00
Johnny Chen
69a8c7f497 Modified encoding bits specification for VFP instructions. In particular, the D 
bit (Inst{22}) and the M bit (Inst{5}) should be left unspecified.  For binary
format instructions, Inst{6} and Inst{4} need to specified for proper decodings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:21:10 +00:00
Evan Cheng
6c2e8a9217 PPC is not ready for sibcall optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:05:56 +00:00
Dale Johannesen
973f46790f Add assertion to humor the paranoid. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 21:21:28 +00:00
Bob Wilson
3eb4f7e2dd Improve isSafeToLoadUnconditionally to recognize that GEPs with constant 
indices are safe if the result is known to be within the bounds of the
underlying object.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 19:19:08 +00:00
Evan Cheng
7096ae48c9 Catch more trivial tail call opportunities: no inputs and output types match. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94804 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 06:45:59 +00:00
Sean Callanan
95fcebd5c4 Added a custom TableGen backend to support the 
enhanced disassembler, and the necessary makefile
rules to build the table for X86.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94764 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 00:21:04 +00:00
Benjamin Kramer
12ea66a727 Replace strcpy with memcpy when we have the length around anyway. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94746 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 18:04:38 +00:00
Chris Lattner
a34103f6fa convert the last 3 targets to use EmitFunctionBody() now that 
it has before/end body hooks.

 lib/Target/Alpha/AsmPrinter/AlphaAsmPrinter.cpp |   49 ++-----------
 lib/Target/Mips/AsmPrinter/MipsAsmPrinter.cpp   |   87 ++++++------------------
 lib/Target/XCore/AsmPrinter/XCoreAsmPrinter.cpp |   56 +++------------
 test/CodeGen/XCore/ashr.ll                      |    2 
 4 files changed, 48 insertions(+), 146 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94741 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 06:22:43 +00:00
Evan Cheng
5fef8bc1cb Fix a bug introduced by r94490 where it created a X86ISD::CMP whose output type is different from its inputs. 
This fixes PR6146.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94731 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:57:22 +00:00
Chris Lattner
a6086fc975 switch blackfin to the default runOnMachineFunction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94729 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:54:33 +00:00
Chris Lattner
08acebc511 eliminate a now-useless class. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94728 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:50:22 +00:00
Chris Lattner
745ec06ad2 Switch MSP430, SPU, Sparc, and SystemZ to use EmitFunctionBody(). 
Diffstat:
 6 files changed, 30 insertions(+), 284 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94727 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:48:52 +00:00
Chris Lattner
d49fe1b6bc Give AsmPrinter the most common expected implementation of 
runOnMachineFunction, and switch PPC to use EmitFunctionBody.
The two ppc asmprinters now don't heave to define 
runOnMachineFunction.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94722 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:28:58 +00:00
Chris Lattner
a786ceac5c switch ARM to EmitFunctionBody(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94719 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:10:34 +00:00
Chris Lattner
14c38ec2af Remove the argument from EmitJumpTableInfo, because it doesn't need it. 
Move the X86 implementation of function body emission up to 
AsmPrinter::EmitFunctionBody, which works by calling the virtual
EmitInstruction method.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94716 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 01:02:27 +00:00
Chris Lattner
a2406190ca Drop the argument to AsmPrinter::EmitConstantPool and make it virtual. 
Overload it in the ARM backend to do nothing, since is does insane
constant pool emission.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94708 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 00:19:24 +00:00
Chris Lattner
80c062001e don't emit constant pools twice. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94706 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 00:15:18 +00:00
Chris Lattner
953ebb769a switch ARM to use EmitFunctionHeader. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94703 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 23:58:11 +00:00
Chris Lattner
7d7dab0278 eliminate the ARMFunctionInfo::Align member, using 
MachineFunction::Alignment instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94701 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 23:37:36 +00:00
Chris Lattner
ff0210d0b0 switch blackfin to use EmitFunctionHeader. BlackfinAsmPrinter.cpp 
is now less than 200 LOC!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94699 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 23:26:37 +00:00
Chris Lattner
5006071f7a switch mips to use the shared EmitFunctionHeader() function 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94698 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 23:23:58 +00:00
Dale Johannesen
714eb731b2 Treat MO_REG 0 location as undefined in DEBUG_VALUE, 
per document.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94693 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 22:11:16 +00:00
Jeffrey Yasskin
f0356fe140 Kill ModuleProvider and ghost linkage by inverting the relationship between 
Modules and ModuleProviders. Because the "ModuleProvider" simply materializes
GlobalValues now, and doesn't provide modules, it's renamed to
"GVMaterializer". Code that used to need a ModuleProvider to materialize
Functions can now materialize the Functions directly. Functions no longer use a
magic linkage to record that they're materializable; they simply ask the
GVMaterializer.

Because the C ABI must never change, we can't remove LLVMModuleProviderRef or
the functions that refer to it. Instead, because Module now exposes the same
functionality ModuleProvider used to, we store a Module* in any
LLVMModuleProviderRef and translate in the wrapper methods.  The bindings to
other languages still use the ModuleProvider concept.  It would probably be
worth some time to update them to follow the C++ more closely, but I don't
intend to do it.

Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94686 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 20:34:15 +00:00
Chris Lattner
2cf7251d39 add a new AsmPrinter::EmitFunctionEntryLabel virtual function, 
which allows targets to override function entry label emission.
Use it to convert linux/ppc to use EmitFunctionHeader().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94667 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 07:21:55 +00:00
Evan Cheng
b17124553d Perform trivial tail call optimization for callees with "C" ABI. These are done 
even when -tailcallopt is not specified and it does not require changing ABI.
First case is the most trivial one. Perform tail call optimization when both
the caller and callee do not return values and when the callee does not take
any input arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94664 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 06:25:16 +00:00
Chris Lattner
37469d1ac1 ppc/linux isn't ready for this and it was an accident that it was included. 
This should fix a bunch of linux buildbot failures.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94643 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 01:02:43 +00:00
Chris Lattner
d3b31a73e8 use existing basic block numbers instead of recomputing 
a new set of them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94631 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:20:02 +00:00
Chris Lattner
4129ccdb70 Switch MSP430, CellSPU, SystemZ, Darwin/PPC, Alpha, and Sparc to 
EmitFunctionHeader:

7 files changed, 16 insertions(+), 210 deletions(-)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94630 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:17:20 +00:00
Evan Cheng
8c86db58c8 Clarify what -tailcallopt option actually do. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94628 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:10:09 +00:00
Jim Grosbach
c90a153ad0 Adjust setjmp instruction sequence to not need 32-bit alignment padding 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94627 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:07:20 +00:00
Evan Cheng
0c439eb2c8 Eliminate target hook IsEligibleForTailCallOptimization. 
Target independent isel should always pass along the "tail call" property. Change
target hook LowerCall's parameter "isTailCall" into a refernce. If the target
decides it's impossible to honor the tail call request, it should set isTailCall
to false to make target independent isel happy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94626 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:07:07 +00:00
Evan Cheng
381993f1f2 Restore to pre-94570 state. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94625 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-27 00:00:57 +00:00
Evan Cheng
bbba00c8fa Ignore 'forced' tailcall opt in fastisel mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94617 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 23:28:40 +00:00
Chris Lattner
b11caedd6f now that enough stuff is constified, move function header printing 
logic up from X86 into the common code.  The other targets will 
hopefully start using this soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94614 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 23:18:44 +00:00
Chris Lattner
30c6b75ac2 constify a method argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94612 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 23:15:09 +00:00
Evan Cheng
1613f40bab Delete blank lines that bug me. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94610 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 23:07:57 +00:00
Chris Lattner
844be89d2d call emitconstantpool and emitjumptable like other targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94601 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 22:06:58 +00:00
Chris Lattner
cee63322ea Eliminate SetDirective, and replace it with HasSetDirective. 
Default HasSetDirective to true, since most targets have it.

The targets that claim to not have it probably do, or it is
spelled differently. These include Blackfin, Mips, Alpha, and
PIC16.  All of these except pic16 are normal ELF targets, so
they almost certainly have it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94585 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 20:40:54 +00:00
Evan Cheng
2a531673b9 Delete dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94583 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 20:36:21 +00:00
Rafael Espindola
2e2563bf8e Emit .comm alignment in bytes but .align in powers of 2 for ARM ELF. 
Original patch by Sandeep Patel and updated by me.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94582 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 20:21:43 +00:00
Chris Lattner
6a315c358c eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform 
that has it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94581 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 20:20:43 +00:00
Chris Lattner
b3732fbabd don't set to the default value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94580 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 20:17:34 +00:00
Evan Cheng
ddc419c581 Code refactoring, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94570 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 19:04:47 +00:00
Dan Gohman
ea32d8f465 Remove SIL, DIL, and BPL from the GR8_NOREX allocation order also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94560 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 18:30:24 +00:00
Dan Gohman
369d4b4c2e SIL, DIL, BPL, and SPL require a REX prefix. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94558 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 18:14:22 +00:00
Chris Lattner
f1214cbf3c eliminate the TargetLowering::UsesGlobalOffsetTable bool, which is 
subsumed by TargetLowering::getJumpTableEncoding().  Change uses of
it to be more specific.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94529 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 06:53:37 +00:00
Chris Lattner
589c6f620e Move getJTISymbol from MachineJumpTableInfo to MachineFunction, 
which is more convenient, and change getPICJumpTableRelocBaseExpr
to take a MachineFunction to match.

Next, move the X86 code that create a PICBase symbol to
X86TargetLowering::getPICBaseSymbol from 
X86MCInstLower::GetPICBaseSymbol, which was an asmprinter specific 
library.  This eliminates a 'gross hack', and allows us to
implement X86ISelLowering::getPICJumpTableRelocBaseExpr which now
calls it.

This in turn allows us to eliminate the 
X86AsmPrinter::printPICJumpTableSetLabel method, which was the
only overload of printPICJumpTableSetLabel.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94526 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 06:28:43 +00:00
Chris Lattner
e35df92eca simplify asmprinter: only emit .set directives when entries have 
EK_LabelDifference32 kind and the target has .set support.  Simplify
X86AsmPrinter::printPICJumpTableSetLabel to make use of recent helpers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94518 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 05:15:20 +00:00
Chris Lattner
c64daabb70 implement X86 @GOTOFF jump table entries with the new EK_Custom32 
jump table entry kind, instead of overloading 
AsmPrinter::printPICJumpTableEntry.

This has a pretty horrible and inefficient FIXME around how @GOTOFF
is currently smashed into the mcsymbol name, but otherwise this is
much cleaner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94516 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 05:02:42 +00:00
Chris Lattner
f71cb015c1 add a new MachineBasicBlock::getSymbol method, replacing 
the AsmPrinter::GetMBBSymbol.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94515 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:55:51 +00:00
Chris Lattner
1e459c4467 don't bother setting the AsmPrinter::MF ivar, now that 
AsmPrinter::SetupMachineFunction sets it.  Note that systemz
and msp430 didn't.  Yay for reduced inconsistency! :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94510 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:38:11 +00:00
Chris Lattner
b84822fb7b make MachineFunction keep track of its ID and make 
MachineFunctionAnalysis dole them out, instead of having
AsmPrinter do both.  Have the AsmPrinter::SetupMachineFunction
method set the 'AsmPrinter::MF' variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94509 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 04:35:26 +00:00
Daniel Dunbar
c690aab230 Unbreak MSVC/CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94502 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 03:56:22 +00:00
Evan Cheng
8c7ecaf524 Implement cond ? -1 : 0 with sbb. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94490 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 02:00:44 +00:00
Dale Johannesen
11609fa2e3 Accept immediate as value of a dbg_value. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94489 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 01:54:26 +00:00
Sean Callanan
7dcef4c475 Added the implementation of the Intel-specific 
TargetAsmLexer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94482 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 01:00:10 +00:00
Dale Johannesen
5ed17ae92a Generate DEBUG_VALUE comments on x86. The (limited) 
dbg.declare's we currently generate go through both
register allocators without perturbing the results.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94480 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:09:58 +00:00
Sean Callanan
cf2e3d108d Added the TargetAsmLexer implementation for AT&T syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94479 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:08:25 +00:00
Dale Johannesen
6ec25f570f use findDebugLoc in more places. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94477 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 00:03:12 +00:00
Jim Grosbach
1f9b48ad87 Minor jump table cleanup. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94475 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:50:13 +00:00
Chris Lattner
5e1df8d1f7 in 32-bit pic mode for targets with a GOT, x86 emits jump table 
entries with @GOTOFF whih is EK_GPRel32BlockAddress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94474 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:38:14 +00:00
Chris Lattner
281e7767df fix quoting problem jim noticed! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94472 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:28:03 +00:00
Chris Lattner
071c62fad0 Rearrange handling of jump tables. Highlights: 
1. MachineJumpTableInfo is now created lazily for a function the first time
   it actually makes a jump table instead of for every function.
2. The encoding of jump table entries is now described by the
   MachineJumpTableInfo::JTEntryKind enum.  This enum is determined by the
   TLI::getJumpTableEncoding() hook, instead of by lots of code scattered
   throughout the compiler that "knows" that jump table entries are always
   32-bits in pic mode (for example).
3. The size and alignment of jump table entries is now calculated based on
   their kind, instead of at machinefunction creation time.

Future work includes using the EntryKind in more places in the compiler,
eliminating other logic that "knows" the layout of jump tables in various
situations.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94470 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:26:13 +00:00
Chris Lattner
b1e803985d prep work to support a future where getJumpTableInfo will return 
a null pointer for functions with no jump tables.  No functionality
change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94469 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:22:00 +00:00
Chris Lattner
da63b3ad63 add a method to get the alignment of an integer type even 
when we don't have one laying around.  Useful if you don't
have an llvmcontext handy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94468 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 23:18:11 +00:00
Johnny Chen
aeb326aad7 Make it SP, LR, PC for GPR Register Class instead of LR, SP, PC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94465 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:54:29 +00:00
Chris Lattner
44e87255e9 eliminate redundant argument to EmitJumpTableInfo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94464 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:41:33 +00:00
Johnny Chen
541ba7dd92 Implemented ARMInstPrinter::printThumbS4ImmOperand(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94457 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 22:13:10 +00:00
Sean Callanan
436c48485c Implemented the dialect decision logic for the X86 
TargetAsmLexer.  Dialect-specific lexing code will
be placed in the functions LexTokenATT() and
LexTokenIntel().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94456 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:59:20 +00:00
Johnny Chen
e43b6c9695 Fixed the order of GPR RegisterClass regs to be: ..., R10, R11, R12, ... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94455 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:56:35 +00:00
Chris Lattner
798d125659 handle the _set_ symbol with an MCSymbol. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94449 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:17:10 +00:00
Chris Lattner
78f485afb7 rename MAI::PICJumpTableDirective to MAI::GPRel32Directive to 
make it clear what it is, instead of how it is used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94448 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:10:10 +00:00
Chris Lattner
a86106ed88 pull the non-pic jump table case out of printPICJumpTableEntry 
and MCize the non-pic case.  Now printPICJumpTableEntry really
is just about printing PIC entries.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94446 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 21:01:58 +00:00
Chris Lattner
cba386ccac remove JumpTableDirective, it is always null. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94445 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 20:52:54 +00:00
Chris Lattner
0890cf124f mcize jump table symbol manipulation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94441 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:51:38 +00:00
Chris Lattner
bfcb09688c sink an arm specific method out of asmprinter into the ARMAsmPrinter and 
rename it to avoid shadowing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94440 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:39:52 +00:00
Chris Lattner
3a39f8cec8 remove dead code: the x86 target never sets usesGlobalOffsetTable, 
even on x86-32/elf which uses a GOT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94439 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 19:23:04 +00:00
Chris Lattner
a6594fc715 mcstreamerize .file and .file. This also fixes an issue where the 
normal form of .file would fail if the filename had a weird character
in it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94437 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:58:59 +00:00
Chris Lattner
a800f7c464 emit ELF .type directives through MCStreamer instead of doing it textually. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94436 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 18:33:40 +00:00
Chris Lattner
d960d3ae79 Remove support for i386 tiger tools for aligned common symbols. 
Previously we would just silently miscompile code that used aligned
common's, now at least you'll get a build error.  tiger-ppc already
triggered the build error because it didn't have a version of this
logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94412 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 07:26:17 +00:00
Chris Lattner
6c23b1f6fe don't set value to its default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94411 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 07:23:14 +00:00
Jim Grosbach
546ae6ec77 ARM does accept the .comm directive alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94408 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 04:59:07 +00:00
Rafael Espindola
f166ed7324 Fix PR6134. 
We are not emitting alignments on Darwin for "bar". Not sure what is the
correct way to do it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94400 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-25 02:27:39 +00:00
Chris Lattner
75f9b4b63a linux/ppc does use alignment in bytes, not pow-2. This fixes PR6129. 
It looks like linux/arm and linux/mips have the same setting, which 
are probably wrong.  Someone who cares about ARM and MIPS should 
investigate with the testcase in PR6129.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94381 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 20:54:45 +00:00
Chris Lattner
843cf187f7 don't reset the default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94380 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 20:53:12 +00:00
Chris Lattner
43b5f9312d make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94378 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 20:43:08 +00:00
Chris Lattner
43dc2e6d76 reassociate should do this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94374 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 20:17:09 +00:00
Chris Lattner
10c4245103 add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94373 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 20:01:41 +00:00
Chris Lattner
3f6bfdaeda move PR5945 here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 02:27:03 +00:00
Chris Lattner
75f265fbbb fix a parsing problem on instructions like: 
movw	$8, (_cost_table_-L97$pb)+66(%eax)

After the parens, we could still have a binop.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 01:07:33 +00:00
Chris Lattner
abb992d6a3 change the canonical form of "cond ? -1 : 0" to be 
"sext cond" instead of a select.  This simplifies some instcombine
code, matches the policy for zext (cond ? 1 : 0 -> zext), and allows
us to generate better code for a testcase on ppc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94339 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 00:09:49 +00:00
Mon P Wang
eb38ebf15c Improved widening loads by adding support for wider loads if 
the alignment allows.  Fixed a bug where we didn't use a
vector load/store for PR5626.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94338 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-24 00:05:03 +00:00
Chris Lattner
818ff34bc0 implement a simple instcombine xform that has been in the 
readme forever.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94318 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 18:49:30 +00:00
Chris Lattner
a9cf5b3cc9 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94317 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 18:42:37 +00:00
Chris Lattner
aa306c2cc1 add some notes, making posix-memalign be nocapture would be an easy improvement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94312 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 17:59:23 +00:00
Bill Wendling
187361b056 Remove the '-disable-scheduling' flag and replace it with the 'source' option of 
the '-pre-RA-sched' flag. It actually makes more sense to do it this way. Also,
keep track of the SDNode ordering by default. Eventually, we would like to make
this ordering a way to break a "tie" in the scheduler. However, doing that now
breaks the "CodeGen/X86/abi-isel.ll" test for 32-bit Linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94308 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 10:26:57 +00:00
Chris Lattner
9eb158d5b4 mcize lcomm, simplify .comm, extend both to support 64-bit sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94299 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 07:47:02 +00:00
Chris Lattner
f9f93e4388 resolve a fixme: the "nonexecutable stack directive" is actually 
a .section.  Switch to it with SwitchSection.

However, I think that this directive should be safe on any ELF target.
If so, we should hoist it up out of the X86 and SystemZ targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94298 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 07:21:06 +00:00
Chris Lattner
1b46f433e0 use helpers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94296 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 07:00:21 +00:00
Chris Lattner
a5ad93a10a move the various directive enums out of the MCStreamer class 
into a new MCDirectives.h file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94294 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:39:22 +00:00
Eric Christopher
e9625cf698 Don't lower splat vector load to relative to the esp if the 
stack may be misaligned.

Update test accordingly.

Patch by Evan Cheng!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94291 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:02:43 +00:00
Chris Lattner
d4acde2f49 remove unneeded directive set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94286 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:28:25 +00:00
Chris Lattner
64c2b24498 use some helpers instead of duplicating logic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94285 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:26:25 +00:00
Ted Kremenek
b2dc8f3b00 Update CMake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94278 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:01:37 +00:00
Sean Callanan
e88f55254c Added the skeleton for the implementation of the X86 
target-specific AsmLexer, and added the appropriate
registration calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94275 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 02:43:15 +00:00
Sean Callanan
e9b466d4f0 Modified the register matcher function in AsmMatcher to 
be static.  Also made it possible for clients to get it
and no other functions from ...GenAsmMatcher.inc by
defining REGISTERS_ONLY before including GenAsmMatcher.inc.
This sets the stage for target-specific lexers that can
identify registers and return AsmToken::Register as
appropriate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94266 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:40:33 +00:00
Evan Cheng
afc36739cd Be more conservative with clustering f32 / f64 loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94254 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:49:11 +00:00
Daniel Dunbar
8a3ee718cd Mark EH_RETURN64 as CodeGenOnly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94205 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 20:16:37 +00:00
Chris Lattner
6a9157913c add missing break, PR6114, patch by M Wahab. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 19:11:53 +00:00
Chris Lattner
7481ae6572 use both the Mangler and the CBE's mangler for identifiers, 
this should fix a problem duncan saw handling symbols with '.' in them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94192 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 18:33:00 +00:00
Benjamin Kramer
a46918d2b1 Simplify some uses of str(n)cmp with StringRef. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 18:21:23 +00:00
Chris Lattner
e73a31f667 Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94164 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 06:49:46 +00:00
Evan Cheng
96dc115ef3 Add two target hooks to determine whether two loads are near and should be scheduled together. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 03:34:51 +00:00
Chris Lattner
46dc583ad5 add new file 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94132 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 01:58:44 +00:00
Chris Lattner
c6ef277a0b create a new MCParser library and move some stuff into it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94129 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 01:44:57 +00:00
Chris Lattner
af0d301f43 stub out a new TargetAsmLexer interface. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94125 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 00:58:59 +00:00
Jim Grosbach
d5d2baec26 Fix PR5694. The CMN instructions set the flags differently from CMP, so they 
cannot be directly interchanged for comparisons against negated values.
Disable the CMN instructions for the time being.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94119 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 00:08:13 +00:00
Chris Lattner
717ce2b8d8 remove dead .erase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94098 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 20:43:39 +00:00
Chris Lattner
26141721d5 fix a problem with a missing _, testcase pending. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94095 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 19:58:19 +00:00
Dan Gohman
a10756ee65 Re-implement the main strength-reduction portion of LoopStrengthReduction. 
This new version is much more aggressive about doing "full" reduction in
cases where it reduces register pressure, and also more aggressive about
rewriting induction variables to count down (or up) to zero when doing so
reduces register pressure.

It currently uses fairly simplistic algorithms for finding reuse
opportunities, but it introduces a new framework allows it to combine
multiple strategies at once to form hybrid solutions, instead of doing
all full-reduction or all base+index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94061 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 02:09:26 +00:00
Evan Cheng
94da721d8c Fix a minor issue in x86 load / store folding table. movups does an unaligned load so it doesn't require 16-byte alignment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94058 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-21 00:55:14 +00:00
Chris Lattner
73a1aa0966 eliminate FnStubInfo, using MachineModuleInfoMachO instead. 
this makes function stub emission determinstic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94033 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 21:36:48 +00:00
Dale Johannesen
73e884bb3e make findDebugLoc a class method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94032 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 21:36:02 +00:00
Chris Lattner
917d628256 split function stub printing out to its own function, 
no functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94030 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 21:19:44 +00:00
Chris Lattner
d3ec0b5446 eliminate the GVStubs and HiddenGVStubs maps, and use 
MachineModuleInfoMachO instead.  This eliminates two sources
of nondeterministic output in the ppc backend, but function
stubs are still bad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94029 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 21:16:14 +00:00
David Greene
cf495bc2e5 When XDEBUG is enabled, check for SelectionDAG cycles at some key 
points.  This will help us find future problems like the one
described in PR6019.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94019 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 20:13:31 +00:00
Chris Lattner
f958dd2e1c reduce redundant are's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 17:53:51 +00:00
Chris Lattner
ea3cb40fab inline and radically simplify printDataDirective. It will eventually 
go completely away.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93994 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 07:33:29 +00:00
Chris Lattner
8eeba35bab revert 93934, removing the MCAsmInfo endianness bit. I can't 
stomache MCAsmInfo having this, and I found a better solution to
this layering issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93985 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 06:34:14 +00:00
Dale Johannesen
918f0f0bea Move findDebugLoc somewhere more central. Fix 
more cases where debug declarations affect
debug line info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93953 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-20 00:19:24 +00:00
Bob Wilson
cb9a6aab02 Wrap some comments to 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93940 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 22:56:26 +00:00
Dale Johannesen
bbe2bbeac8 Fix a case where debug_value was perturbing the 
line number info.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93937 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 22:50:05 +00:00
Chris Lattner
c7b8814bb4 give MCAsmInfo a 'has little endian' bit. This is unfortunate, but 
I really want clients of the streamer to be able to say "emit this
64-bit integer" and have it get broken down right by the streamer.

I may change this in the future, we'll see how it works out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93934 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 22:42:28 +00:00
Chris Lattner
6449abfbc8 eliminate AsmPrinter::EmitZeros: just use MCStreamer directly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93918 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 21:51:22 +00:00
Sean Callanan
18b8323de7 Promoted the getTok() method to MCAsmParser so that 
the two token accessor functions are declared consistently.
Modified the clients of MCAsmParser to reflect this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93916 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 21:44:56 +00:00
Jakob Stoklund Olesen
35f0febcb6 Remove predicates when changing an add into an unpredicable mov. 
Since the mov is executed unconditionally, make sure that the add didn't have
any predicate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93909 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 21:08:28 +00:00
Sean Callanan
b9a25b7744 Propagated the parser-side Lex function's declaration to 
MCAsmParser, and changed the target-specific AsmParsers
to use it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93900 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 20:27:46 +00:00
Bruno Cardoso Lopes
8c5ee7147b Fix a bug introduced on r92564 where the name "Node" was already 
in use by Mips.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93897 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 19:57:07 +00:00
Chris Lattner
aaec205b87 Generalize mcasmstreamer data emission APIs to take an address space 
identifier.  There is no way to work around it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93896 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 19:46:13 +00:00
Chris Lattner
f03ffd13f8 remove MAI::ZeroDirectiveSuffix, which is only used by MASM, 
which we don't support anymore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93886 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 18:37:01 +00:00
Jim Grosbach
e45ab8a0a9 For aligned load/store instructions, it's only required to know whether a 
function can support dynamic stack realignment. That's a much easier question
to answer at instruction selection stage than whether the function actually
will have dynamic alignment prologue. This allows the removal of the
stack alignment heuristic pass, and improves code quality for cases where
the heuristic would result in dynamic alignment code being generated when
it was not strictly necessary.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93885 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 18:31:11 +00:00
Bruno Cardoso Lopes
9201b10daa On pic function calls some arguments were marked dead and 
the instruction to load those args removed. This fix PR6071


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 17:00:43 +00:00
Bruno Cardoso Lopes
ea98278935 load f64 +0.0 in a cleaner way. This fix part of PR5445 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93876 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 12:53:04 +00:00
Bruno Cardoso Lopes
e5ebd5f2ae Fix return registers for mips eabi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 12:37:35 +00:00
Chris Lattner
814819f6ea stop using the .lcomm pseudoop on darwin, instead, directly use the 
.zerofill directive.  Streamerize its generation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93868 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 06:25:51 +00:00
Devang Patel
c99fd879c0 Avoid including DebugInfo.h in AsmPrinter.h 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93864 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 06:09:04 +00:00
Chris Lattner
8ad9a77501 zap the ARM version of PrintGlobalVariable, which I missed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93863 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 06:08:15 +00:00
Chris Lattner
74bfe21b50 Now that we have everything nicely factored (e.g. asmprinter is not 
doing global variable classification anymore) and hookized, sink almost
all target targets global variable emission code into AsmPrinter and out
of each target.

Some notes:

1. PIC16 does completely custom and crazy stuff, so it is not changed.
2. XCore has some custom handling for extra directives.  I'll look at it next.
3. This switches linux/ppc to use .globl instead of .global.  If .globl is
   actually wrong, let me know and I'll fix it.
4. This makes linux/ppc get a lot of random cases right which were obviously
   wrong before, it is probably now a bit healthier.
5. Blackfin will probably start getting .comm and other things that it didn't
   before.  If this is undesirable, it should explicitly opt out of these
   things by clearing the relevant fields of MCAsmInfo.

This leads to a nice diffstat:
 14 files changed, 127 insertions(+), 830 deletions(-)




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 05:38:33 +00:00
Chris Lattner
074f837bbb use %object like other elf targets, gas accepts either. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93857 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 05:25:38 +00:00
Chris Lattner
07c2bc04f9 simplify the mips target to print .size and .type for c strings 
just like all other elf targets.  Bruno, if this isn't right, please
let me know + why :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93856 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 05:23:59 +00:00
Chris Lattner
41eb8b4771 hookize the cygwin ".linkonce" directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 05:08:13 +00:00
Chris Lattner
619ea855e7 more cleanups. Emit the .local directive even on cygwin/mingw. 
I'm not sure that this is correct, but it causes no test failures,
and just emitting a .comm without protecting its linkage somehow
is surely not right.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:59:55 +00:00
Chris Lattner
cfd910ebc4 some cleanups 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:53:18 +00:00
Chris Lattner
7517b249ca add a bool for whether .lcomm takes an alignment instead of basing this on "isdarwin". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:48:20 +00:00
Chris Lattner
48d64ba9d8 hoist handling of external globals and special globals up to common code. 
This makes a similar code dead in all the other targets, I'll clean it up
in a bit.

This also moves handling of lcomm up before acquisition of a section,
since lcomm never needs a section.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:39:15 +00:00
Chris Lattner
71eae71315 move production of .reference directives for static ctor/dtor list on 
darwin into common code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93849 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:34:02 +00:00
Chris Lattner
c1ef06ac52 use BSSLocal classifier to identify 'lcomm' data instead of 
duplicating the logic (differently) in lots of different targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93847 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:21:20 +00:00
Chris Lattner
ce8749e445 make TLOF subclassify BSS based on linkage type into private, external 
and everything else (weak).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93846 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 04:15:51 +00:00
Chris Lattner
56b1319fbe now that elf weak bss symbols are handled correctly, simplify a bunch of code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 03:13:44 +00:00
Chris Lattner
c7fbe90389 fix a significant difference between llvm and gcc on ELF systems: 
GCC would put weak zero initialized mutable data in the .bss section,
we would put it into a crasy '.gnu.linkonce.b.test,"aw",@nobits' 
section.  Fixing this will allow simplifications next up.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 03:06:01 +00:00
Chris Lattner
a3839bc371 introduce a section kind for common linkage. Use this to slightly 
simplify and commonize some of the asmprinter logic for globals.

This also avoids printing the MCSection for .zerofill, which broke
the llvm-gcc build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 02:48:26 +00:00
Bill Wendling
e1e0f485f9 Even more explanation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93841 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 02:44:01 +00:00
Chris Lattner
6e3be14be4 change an accessor to a predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93839 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 02:13:06 +00:00
Chris Lattner
aac138e84d 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93838 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 02:09:44 +00:00
Evan Cheng
f609bb8466 Fix r93758. Use isel patterns instead of c++ selection code to select rbit and make sure we pick different instructions for ARM vs. Thumb2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 00:44:15 +00:00
Dale Johannesen
f082d7abe1 Revert 93811 per request. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93818 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-19 00:10:52 +00:00
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
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
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
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
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
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
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
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
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
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
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