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Author SHA1 Message Date
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
f7d0d163c5 fix a potential overflow issue Eli pointed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 23:31:46 +00:00
Nick Lewycky
44540740ae Speculatively revert r94322 to see if it fixes darwin selfhost buildbot. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94331 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 20:32:12 +00:00
Chris Lattner
d668839cb9 third bug from PR6119: the xor dupe extension allows 
for arbitrary terminators in predecessors, don't assume
it is a conditional or uncond branch.  The testcase shows
an example where they can happen with switches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:21:31 +00:00
Nick Lewycky
dbeecede80 Teach DAE that even though it can't modify the function signature of an 
externally visible function, it can still find all callers of it and replace
the parameters to a dead argument with undef.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94322 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:19:34 +00:00
Chris Lattner
2dd7657a5b add an early out to ProcessBranchOnXOR to speed it up, 
handle the case when we can infer an input to the xor
from all inputs that agree, instead of going into an
infinite loop.  Another part of PR6199


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94321 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 19:16:25 +00:00
Chris Lattner
8231fd1e6c fix a crash in jump threading, PR6119 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94319 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 18:56:07 +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
Benjamin Kramer
e88a8e6fbf Respect operator precedence (and silence a gcc 4.3 warning). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94304 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 09:54:23 +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
74670b26fc remove a dead call. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94297 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 07:17:54 +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
152a29bfa6 mcize visibility directives. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94295 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:53:23 +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
Chris Lattner
52492ac0d0 Change constantexpr global variable initializers to convert the constants 
to MCExpr then emit them through MCStreamer with EmitValue.  I think all
global variable initializers are now going through mcstreamer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94293 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 06:17:14 +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
3a9be0ee36 mcstreamerize .no_dead_strip and .reference for static ctors/dtors. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94290 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:51:36 +00:00
Chris Lattner
63df4a4fec stop testing for invalid output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94288 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:45:28 +00:00
Eric Christopher
7672d04f77 Reapply 94059 while fixing the calling convention setup 
for strcpy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94287 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:29:06 +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
Chris Lattner
3924868a95 mcize jump table and constant pool entry labels, .local on elf, 
and some .weak directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94284 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 05:19:23 +00:00
Chris Lattner
05f845314a emit .ascii and .asciz through MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94282 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:54:10 +00:00
Chris Lattner
33b1758e16 simplify code a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94281 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:42:42 +00:00
Mon P Wang
e4a0a151a5 InstCombine should not fold sext/zext of a vector and a bitcast to a scalar to a sext/zext 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94280 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 04:35:57 +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
Chris Lattner
4cf202ba06 remove one form of EmitString, just use EmitBytes instead. We must 
be careful to add a \0 at the end though, because EmitString didn't
do this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94277 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 03:11:46 +00:00
Chris Lattner
4fe5d72765 remove this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94276 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 03:11:10 +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
Evan Cheng
796263464d Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94272 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 01:21:27 +00:00
Evan Cheng
4d03ca0702 Fix tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94271 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 01:19:28 +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
Devang Patel
2e369930dc Avoid using "Type" as the variable name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94262 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:26:28 +00:00
Daniel Dunbar
1402f0b2ca AsmMatcher: Add a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94261 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:26:16 +00:00
Victor Hernandez
b6aebc2f46 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94260 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:17:34 +00:00
Chris Lattner
12e555c36c teach MCAsmStreamer::EmitBytes to use .ascii and .asciz 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94259 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:15:00 +00:00
Victor Hernandez
06203127a7 Make sure ValueFn starts off empty 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94256 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-23 00:03:28 +00:00
Evan Cheng
42dae2d5ba Enable pre-regalloc scheduling load clustering by default. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94255 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:49:45 +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
Chris Lattner
faca5497a2 move "EOL" from asmprinter to dwarfprinter. It should eventually 
be completely eliminated, but today is not that day.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94253 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:47:11 +00:00
Chris Lattner
f537ce1752 remove uses of EOL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94252 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:43:14 +00:00
Chris Lattner
245834dde5 add a new EmitCFAByte method and use it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94251 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:40:08 +00:00
Chris Lattner
894d75aa01 move uleb printing from asmprinter to dwarfprinter, mcize, 
cleanup and eliminate a bunch more uses of "EOL".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94250 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:18:42 +00:00
Jeffrey Yasskin
bf1f76b493 Make OProfile support compile again after r93630 removed 
DebugLocTuple.  Also use an AssertingVH to ensure that MDNodes aren't
destroyed while the FilenameCache is using them.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94245 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 23:04:39 +00:00
Chris Lattner
bb9078a6b2 move sleb printing out of asmprinter into dwarf printer, make clients 
handle the comment better, MCize the non-.sleb case.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94244 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-22 22:56:55 +00:00