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5416 Commits

Author SHA1 Message Date
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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