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12983 Commits

Author SHA1 Message Date
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
Chris Lattner
edf1e280a2 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.

llvm-svn: 95178
 2010-02-03 01:09:55 +00:00
Chris Lattner
cd07a3a0b7 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.

llvm-svn: 95177
 2010-02-03 01:00:52 +00:00
Dale Johannesen
7c4c39e651 Print FPImm a less kludgy way; APFloat.toString seems 
to have some problems anyway.

llvm-svn: 95171
 2010-02-03 00:36:40 +00:00
Evan Cheng
1d121ec4d1 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. 
llvm-svn: 95163
 2010-02-02 23:58:13 +00:00
Jim Grosbach
23b76845a7 As of r79039, we still try to eliminate the frame pointer on leaf functions, 
even when -disable-fp-elim is specified.

llvm-svn: 95161
 2010-02-02 23:56:14 +00:00
Evan Cheng
9057fea7ef Revert 95130. 
llvm-svn: 95160
 2010-02-02 23:55:14 +00:00
Dale Johannesen
ca2fe230d2 Accept floating point immediates in DEBUG_VALUE. 
llvm-svn: 95159
 2010-02-02 23:54:23 +00:00
Daniel Dunbar
c6f8382263 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.

llvm-svn: 95158
 2010-02-02 23:46:47 +00:00
Chris Lattner
643f2f9bc4 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.

llvm-svn: 95155
 2010-02-02 23:37:42 +00:00
Chris Lattner
6996a481db tidy some targets. 
llvm-svn: 95146
 2010-02-02 22:13:21 +00:00
Chris Lattner
04d5dfafae remove dead code. 
llvm-svn: 95144
 2010-02-02 22:03:00 +00:00
Chris Lattner
b3d8901ca8 detemplatize the ppc code emitter. 
llvm-svn: 95142
 2010-02-02 21:55:58 +00:00
Chris Lattner
40e4a9d982 remove dead code. 
llvm-svn: 95141
 2010-02-02 21:52:03 +00:00
Chris Lattner
3dedba8e8c add a definition for ID. 
llvm-svn: 95140
 2010-02-02 21:49:29 +00:00
Chris Lattner
00a839b592 detemplatize ARM code emitter. 
llvm-svn: 95138
 2010-02-02 21:48:51 +00:00
Daniel Dunbar
fe2e25aa31 MCAsmParser/X86: Represent absolute memory operands as CodeGen does, with scale 
== 1.

llvm-svn: 95137
 2010-02-02 21:44:16 +00:00
Daniel Dunbar
60fac220dd MCCodeEmitter/X86: Handle tied registers better when converting MCInst -> 
MCMachineInstr. This also fixes handling of tied registers for MRMSrcMem
instructions.

llvm-svn: 95136
 2010-02-02 21:44:10 +00:00
Chris Lattner
ec61994b1d remove dead code. 
llvm-svn: 95134
 2010-02-02 21:38:59 +00:00
Chris Lattner
aad5bcaecb detemplatize alpha code emission, it is now JIT specific. 
llvm-svn: 95133
 2010-02-02 21:35:47 +00:00
Chris Lattner
21bcba21e7 eliminate all the dead addSimpleCodeEmitter implementations. 
eliminate random "code emitter" stuff in Alpha, except for
the JIT path.  Next up, remove the template cruft.

llvm-svn: 95131
 2010-02-02 21:31:47 +00:00
Evan Cheng
48375fbf4f Pass callsite return type to TargetLowering::LowerCall and use that to check sibcall eligibility. 
llvm-svn: 95130
 2010-02-02 21:29:10 +00:00
Chris Lattner
7d162688a9 eliminate FileModel::Model, just use CodeGenFileType. The client 
of the code generator shouldn't care what object format a target
uses.

llvm-svn: 95124
 2010-02-02 21:06:45 +00:00
Chris Lattner
cb4d0d0df4 remove the remnants of TargetMachOWriterInfo. 
llvm-svn: 95114
 2010-02-02 19:41:23 +00:00
Johnny Chen
3d9b3cb28b Added t2BFI (Bitfield Insert) entry for disassembler, with blank pattern field. 
llvm-svn: 95112
 2010-02-02 19:31:58 +00:00
Chris Lattner
c82a982126 remove PPCMachOWriterInfo. 
llvm-svn: 95111
 2010-02-02 19:23:55 +00:00
Evan Cheng
fac0fdc6a0 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);
}

llvm-svn: 95053
 2010-02-02 02:22:50 +00:00