Commit Graph

66805 Commits

Author SHA1 Message Date
Dan Gohman
a25e5dbcc2 Extend the AliasAnalysis::pointsToConstantMemory interface to allow it
to optionally look for constant or local (alloca) memory.

Teach BasicAliasAnalysis::pointsToConstantMemory to look through Select
and Phi nodes, and to support looking for local memory.

Remove FunctionAttrs' PointsToLocalOrConstantMemory function, now that
AliasAnalysis knows all the tricks that it knew.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:45:26 +00:00
Dan Gohman
c80cbf2540 Delete getIntrinsicModRefBehavior. Clients can just use the normal
getModRefBehavior now, since it now understands intrinsics as well
as normal functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:11:19 +00:00
Dan Gohman
3c97f7af9e Make FunctionAttrs use AliasAnalysis::getModRefBehavior, now that it
knows about intrinsic functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:10:15 +00:00
Dan Gohman
431c794ade Teach BasicAliasAnalysis::getModRefBehavior(const Function *F)
to analyze intrinsic functions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118409 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 16:08:43 +00:00
Dan Gohman
6c25c920e6 Add comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 15:34:42 +00:00
Benjamin Kramer
4aef398653 svn:ignore
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 10:52:42 +00:00
Che-Liang Chiou
df65963a34 Add generating function declaration for PTX
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118398 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 03:06:08 +00:00
Che-Liang Chiou
3278c4260c Add physical register counting functions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 03:00:52 +00:00
Che-Liang Chiou
d77f2a45aa Add a dummy PTXMCAsmStreamer class
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 02:58:44 +00:00
Rafael Espindola
4faf7c78fe Set default flags for .rodata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 02:47:59 +00:00
Che-Liang Chiou
6da24ca51d Add registry hook for assembly text output
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 02:21:17 +00:00
Bill Wendling
5991487c10 Make RegList an ASM operand so that TableGen will generate code for it. This is
an initial implementation and may change once reglists are fully fleshed out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118390 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 00:39:58 +00:00
Bill Wendling
b32e7844e9 Revert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08 00:32:40 +00:00
Duncan Sands
92826def59 Add simplification of floating point comparisons with the result
of a select instruction, the same as already exists for integer
comparisons.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 16:46:25 +00:00
Duncan Sands
1ac7c9979a Fix a README item: when doing a comparison with the result
of a select instruction, see if doing the compare with the
true and false values of the select gives the same result.
If so, that can be used as the value of the comparison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 16:12:23 +00:00
Rafael Espindola
e25e1ef48b Speed up AddSectionToTheEnd. It was walking all fragments in all sections.
This is really slow with we have 1000s of sections each with a corresponding
relocation section. Also, it is only used by the ELF writer to add
basic data, so there is no need to force a new layout pass.

Should fix PR8563.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 15:03:27 +00:00
Rafael Espindola
6bc6cd223c typos
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118376 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 13:48:10 +00:00
Bill Wendling
e8399c6e01 In this context, a reglist is a reg.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118375 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 13:08:28 +00:00
Ted Kremenek
13302ec089 Fix memory leak in StringRef::edit_distance(). 'Allocated' could be leaked on an early return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118370 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 06:09:02 +00:00
Dale Johannesen
7944988c25 Testcase for llvm-gcc 118368. 8629268.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118369 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 04:58:48 +00:00
Rafael Espindola
9e07a149b0 Add method for checking if a path is a symbolic link.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118367 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 04:36:50 +00:00
Rafael Espindola
187d8339db Relax dwarf line fragments. This fixes a crash in the included testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118365 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-07 02:07:12 +00:00
Chris Lattner
689cf3cb62 implement aliases for div/idiv that have an explicit A register operand,
implementing rdar://8431864


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:41:18 +00:00
Bill Wendling
e717610f53 Add support for parsing register lists. We can't use a bitfield to keep track of
the registers, because the register numbers may be much greater than the number
of bits available in the machine's register.

I extracted the register list verification code out of the actual parsing of the
registers. This made checking for errors much easier. It also limits the number
of warnings that would be emitted for cascading infractions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118363 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:36:58 +00:00
Chris Lattner
04a75abe23 add aliases for movs between seg registers and mem. There are multiple
different forms of this instruction (movw/movl/movq) which we reported
as being ambiguous.  Since they all do the same thing, gas just picks the
one with the shortest encoding.  Follow its lead here.

This implements rdar://8208615


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118362 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:35:34 +00:00
Chris Lattner
d5b2f1aa8c move the "sh[lr]d op,op" -> "shld $1, op,op" aliases to the .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118361 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:25:39 +00:00
Bill Wendling
8155e5b753 Return the base register of a register list for the "getReg()" method. This is
to satisfy the ClassifyOperand method of the Asm matcher without having to add a
RegList type to every back-end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:19:43 +00:00
Chris Lattner
7ad3147f98 pass literals like $$1 through to the asm matcher. This isn't right yet, but doesn't hurt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118359 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:06:03 +00:00
Chris Lattner
17671510a7 work-in-progress
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118358 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 22:05:43 +00:00
Bill Wendling
146018fc64 General cleanup:
- Make ARMOperand a class so that some things are internal to the class.
- Reformatting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118357 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 21:42:12 +00:00
Chris Lattner
db28788e4a go to great lengths to work around a GAS bug my previous patch
exposed:

GAS doesn't accept "fcomip %st(1)", it requires "fcomip %st(1), %st(0)"
even though st(0) is implicit in all other fp stack instructions.

Fortunately, there is an alias for fcomip named "fcompi" and gas does
accept the default argument for the alias (boggle!).

As such, switch the canonical form of this instruction to "pi" instead
of "ip".  This makes the code generator and disassembler generate pi,
avoiding the gas bug.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 21:37:06 +00:00
Chris Lattner
8c24b0c699 rework the rotate-by-1 instructions to be defined like the
shift-by-1 instructions, where the asmstring doesn't contain
the implicit 1.  It turns out that a bunch of these rotate
instructions were completely broken because they used 1 
instead of $1.

This fixes assembly mismatches on "rclb	$1, %bl" and friends,
where we used to generate the 3 byte form, we now generate the
proper 2-byte form.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 21:23:40 +00:00
Chris Lattner
235705b9ca change the fp comparison instructions to not have %st0 explicitly
listed in its asm string, for consistency with the other similar
instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118354 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 20:55:09 +00:00
Chris Lattner
3af0e7d5cd move the plethora of fp stack aliases to the .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118353 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 20:47:38 +00:00
Chris Lattner
90fd797dc7 add (and document) the ability for alias results to have
fixed physical registers.  Start moving fp comparison
aliases to the .td file (which default to using %st1 if
nothing is specified).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118352 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 19:57:21 +00:00
Bill Wendling
8d5acb7007 Add a RegList (register list) object to ARMOperand. It will be used soon to hold
(surprise!) a list of registers. Register lists are consecutive, so we only need
to record the start register plus the number of registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118351 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 19:56:04 +00:00
Chris Lattner
98c870f87b generalize alias support to allow the result of an alias to
add fixed immediate values.  Move the aad and aam aliases to
use this, and document it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118350 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 19:25:43 +00:00
Chris Lattner
dea546b623 move fnstsw aliases to .td file, fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118349 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 18:58:32 +00:00
Chris Lattner
7e925cc3c9 move in/out aliases to the .td files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118348 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 18:52:40 +00:00
Chris Lattner
9c1dbc69d7 move sldt, imul, and movabsq aliases from c++ to .td file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118347 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 18:44:26 +00:00
Chris Lattner
fb7000fcbd correct suffix matching to search for s/l/t suffixes on
floating point stack instructions instead of looking for b/w/l/q.

This fixes issues where we'd accidentally match fistp to fistpl,
when it is in fact an ambiguous instruction.

This changes the behavior of llvm-mc to reject fstp, which was the
correct fix for rdar://8456389:
t.s:1:1: error: ambiguous instructions require an explicit suffix (could be 'fstps', 'fstpl', or 'fstpt')
fstp	(%rax)

it also causes us to correctly reject fistp and fist, which addresses
PR8528:

t.s:2:1: error: ambiguous instructions require an explicit suffix (could be 'fistps', or 'fistpl')
fistp (%rax)
^
t.s:3:1: error: ambiguous instructions require an explicit suffix (could be 'fists', or 'fistl')
fist (%rax)
^

Thanks to Ismail Donmez for tracking down the issue here!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118346 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 18:28:02 +00:00
Benjamin Kramer
f788854d20 Prune includes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118342 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 11:45:59 +00:00
Bill Wendling
12f40e9a63 Fix grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118341 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 10:51:53 +00:00
Bill Wendling
a60f157b7c Fix grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118340 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 10:48:18 +00:00
Bill Wendling
d68fd9c79e MatchRegisterName() returns 0 if it can't match the register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 10:45:34 +00:00
Bill Wendling
1d6a26507b Use TryParseRegister() instead of MatchRegisterName(). The former returns -1
while the latter doesn't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118338 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 10:40:24 +00:00
Benjamin Kramer
019e378754 Add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118337 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 10:37:16 +00:00
Chris Lattner
c7a03fbe66 document instalias.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118335 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 08:30:26 +00:00
Chris Lattner
5bde734598 fix a bug where we had an implicit assumption that the
result instruction operand numbering matched the result pattern.

Fixing this allows us to move the xchg/test aliases to the .td file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118334 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 08:20:59 +00:00
Eric Christopher
5e262bc943 Make sure we have movw on the target before using it.
Fixes 8559.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118333 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-06 07:53:11 +00:00