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01b6959fb6
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13009 Commits

Author SHA1 Message Date
Torok Edwin
01b6959fb6 Fix x86 JIT stub on MSVC. 
Thanks to Kristaps Straupe for noticing the bug.

llvm-svn: 95537
 2010-02-08 08:37:27 +00:00
Bruno Cardoso Lopes
014f8fc7b1 Add suport for VASTART on Mips. 
llvm-svn: 95506
 2010-02-06 21:00:02 +00:00
Bruno Cardoso Lopes
2f4294068f 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.

llvm-svn: 95500
 2010-02-06 19:20:49 +00:00
Evan Cheng
5541068ad3 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.

llvm-svn: 95493
 2010-02-06 09:07:11 +00:00
Rafael Espindola
b0bb1ddfe3 Fix alignment on ppc linux. This fixes the build of crtend.o 
llvm-svn: 95477
 2010-02-06 03:32:21 +00:00
Evan Cheng
de1a4726e6 Do not emit callseq instructions around sibcalls. This eliminated some unnecessary stack adjustments. 
llvm-svn: 95475
 2010-02-06 03:28:46 +00:00
Jakob Stoklund Olesen
83ebc265b3 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.

llvm-svn: 95466
 2010-02-06 01:16:28 +00:00
Bob Wilson
1a324958d6 Handle AddrMode6 (for NEON load/stores) in Thumb2's rewriteT2FrameIndex. 
Radar 7614112.

llvm-svn: 95456
 2010-02-06 00:24:38 +00:00
Chris Lattner
e1b8c529a4 fix incorrect encoding of SBB8mi that Kevin noticed. 
llvm-svn: 95448
 2010-02-05 22:56:11 +00:00
Chris Lattner
9d4e878b6a 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.

llvm-svn: 95446
 2010-02-05 22:49:06 +00:00
Chris Lattner
261d9ac280 add note. 
llvm-svn: 95445
 2010-02-05 22:48:33 +00:00
Chris Lattner
8db3500688 port X86InstrInfo::determineREX over to the new encoder. 
llvm-svn: 95440
 2010-02-05 22:10:22 +00:00
Chris Lattner
15817c2239 wire up 64-bit MCCodeEmitter. 
llvm-svn: 95438
 2010-02-05 21:51:35 +00:00
Chris Lattner
22151cbec5 really kill off the last MRMInitReg inst, remove logic from encoder. 
llvm-svn: 95437
 2010-02-05 21:34:18 +00:00
Chris Lattner
071fe62af6 lower the last of the MRMInitReg instructions in MCInstLower. 
llvm-svn: 95435
 2010-02-05 21:30:49 +00:00
Chris Lattner
9b3cf069dc teach X86MCInstLower to lower the MOV32r0 and MOV8r0 
pseudo instructions.

llvm-svn: 95433
 2010-02-05 21:21:06 +00:00
Chris Lattner
f77eadcfbb genericize helpers, use them for MOV16r0/MOV64r0 
llvm-svn: 95432
 2010-02-05 21:15:57 +00:00
Chris Lattner
32f09202d6 factor code better in X86MCInstLower::Lower, teach it to 
lower the SETB* instructions.

llvm-svn: 95431
 2010-02-05 21:13:48 +00:00
Chris Lattner
3590276566 implement the rest of the encoding types. 
llvm-svn: 95414
 2010-02-05 19:37:31 +00:00
Chris Lattner
a6d9d45f42 move functions for decoding X86II values into the X86II namespace. 
llvm-svn: 95410
 2010-02-05 19:24:13 +00:00
Chris Lattner
326cf88352 constant propagate a method away. 
llvm-svn: 95408
 2010-02-05 19:20:30 +00:00
Chris Lattner
d43a7714c9 change getSizeOfImm and getBaseOpcodeFor to just take 
TSFlags directly instead of a TargetInstrDesc.

llvm-svn: 95405
 2010-02-05 19:16:26 +00:00
Chris Lattner
f20e6a05bd add some more encodings. 
llvm-svn: 95403
 2010-02-05 19:04:37 +00:00
Johnny Chen
0b398e3919 VMOVRRD and VMOVDRR both have Inst{7-6} = 0b00. 
llvm-svn: 95397
 2010-02-05 18:04:58 +00:00
Chris Lattner
c59cbacb06 implement the non-relocation forms of memory operands 
llvm-svn: 95368
 2010-02-05 06:16:07 +00:00
Evan Cheng
81dde4c7f7 Handle tail call with byval arguments. 
llvm-svn: 95351
 2010-02-05 02:21:12 +00:00
Chris Lattner
adf475aaf7 start adding MRMDestMem, which requires memory form mod/rm encoding 
to start limping.

llvm-svn: 95350
 2010-02-05 02:18:40 +00:00
Chris Lattner
f1f355c706 Add a few more encodings, we can now encode all of: 
pushl	%ebp
	movl	%esp, %ebp
	movl	$42, %eax
	popl	%ebp
	ret

llvm-svn: 95344
 2010-02-05 01:53:19 +00:00
Evan Phoenix
a44be8b7f3 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.

llvm-svn: 95323
 2010-02-04 19:56:59 +00:00
Chris Lattner
a635219775 move the PR6214 microoptzn to this file. 
llvm-svn: 95299
 2010-02-04 07:32:01 +00:00
Evan Cheng
f5ee7fb571 Re-enable x86 tail call optimization. 
llvm-svn: 95295
 2010-02-04 06:47:24 +00:00
Chris Lattner
e43007d443 add support for the sparcv9-*-* target triple to turn on 
64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293
 2010-02-04 06:34:01 +00:00
Evan Cheng
c603f314de 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).

llvm-svn: 95280
 2010-02-04 02:40:39 +00:00
Dale Johannesen
b9cb5e72fd Rewrite FP constant handling in DEBUG_VALUE yet 
again, so it more or less handles long double.
Restore \n removed in latest MC frenzy.

llvm-svn: 95271
 2010-02-04 01:33:43 +00:00
Chris Lattner
26cf12e3c9 enhance new encoder to support prefixes + RawFrm 
instructions with no operands.  It can now handle

define void @test2() nounwind { ret void }

llvm-svn: 95261
 2010-02-03 21:57:59 +00:00
Chris Lattner
5078a382e4 set up some infrastructure, some minor cleanups. 
llvm-svn: 95260
 2010-02-03 21:43:43 +00:00
Evan Cheng
5c8b1b9164 Speculatively disable x86 automatic tail call optimization while we track down a self-hosting issue. 
llvm-svn: 95259
 2010-02-03 21:40:40 +00:00
Chris Lattner
dc1807366c stub out a new X86 encoder, which can be tried with 
-enable-new-x86-encoder until its stable.

llvm-svn: 95256
 2010-02-03 21:24:49 +00:00
Chris Lattner
258fb66f6e rename createX86MCCodeEmitter to more accurately reflect what it creates. 
llvm-svn: 95254
 2010-02-03 21:14:33 +00:00
Kevin Enderby
57859abd72 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.

llvm-svn: 95252
 2010-02-03 21:04:42 +00:00
Chris Lattner
4b6b2b1363 reapply r95206, this time actually delete the code I'm replacing in the third stub case. 
llvm-svn: 95209
 2010-02-03 06:42:38 +00:00
Chris Lattner
427e5bf013 revert r95206, it is apparently causing bootstrap failure on i386-darwin9 
llvm-svn: 95208
 2010-02-03 06:41:18 +00:00
Chris Lattner
39e5f7d84d make the x86 backend emit darwin stubs through mcstreamer 
instead of textually.

llvm-svn: 95206
 2010-02-03 06:21:16 +00:00
Chris Lattner
837d242070 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.

llvm-svn: 95205
 2010-02-03 06:18:30 +00:00
Evan Cheng
d9cf09b0d6 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. 
llvm-svn: 95195
 2010-02-03 03:28:02 +00:00
Chris Lattner
eb6d6da2e4 don't emit \n's at the start of X86AsmPrinter::runOnMachineFunction, 
.o files don't like that.

llvm-svn: 95187
 2010-02-03 01:49:49 +00:00
Chris Lattner
dda5d34934 rename printMachineInstruction -> EmitInstruction 
llvm-svn: 95184
 2010-02-03 01:41:03 +00:00
Chris Lattner
0bb2e04b36 print instructions through the mcstreamer. 
llvm-svn: 95181
 2010-02-03 01:16:28 +00:00
Chris Lattner
bcba6c8a07 emit instructions through the streamer. 
llvm-svn: 95180
 2010-02-03 01:15:03 +00:00
Chris Lattner
1797ff9f5a 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

llvm-svn: 95179
 2010-02-03 01:13:25 +00:00