Eric Christopher [Wed, 1 Sep 2010 22:16:27 +0000 (22:16 +0000)]
Some basic store support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112752
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Wed, 1 Sep 2010 22:15:35 +0000 (22:15 +0000)]
Teach RemoveCopyByCommutingDef to check all aliases, not just subregisters.
This caused a miscompilation in WebKit where %RAX had conflicting defs when
RemoveCopyByCommutingDef was commuting a %EAX use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112751
91177308-0d34-0410-b5e6-
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Dale Johannesen [Wed, 1 Sep 2010 21:57:20 +0000 (21:57 +0000)]
Apparently only Darwin passes long double misaligned. Compensate.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112748
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 21:48:06 +0000 (21:48 +0000)]
tidy up trailing whitespace and an 80 column violation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112746
91177308-0d34-0410-b5e6-
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Dan Gohman [Wed, 1 Sep 2010 21:46:45 +0000 (21:46 +0000)]
Fix loop unswitching's assumption that a code path which either
infinite loops or exits will eventually exit. This fixes PR5373.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112745
91177308-0d34-0410-b5e6-
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Dale Johannesen [Wed, 1 Sep 2010 21:36:44 +0000 (21:36 +0000)]
Revert 112740, it broke some clang tests somehow...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112744
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 21:34:41 +0000 (21:34 +0000)]
cleanup per feedback. use a helper function for getting the first non-reserved
physical register in a register class. Make sure to assert if the register
class is empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112743
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 21:23:03 +0000 (21:23 +0000)]
The register allocator shouldn't consider allocating reserved registers. PBQP version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112742
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 21:04:27 +0000 (21:04 +0000)]
The register allocator shouldn't consider allocating reserved registers.
r112728 did this for fast regalloc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112741
91177308-0d34-0410-b5e6-
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Dale Johannesen [Wed, 1 Sep 2010 21:03:03 +0000 (21:03 +0000)]
Add a few more missing MMX operations. This should be it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112740
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 20:09:20 +0000 (20:09 +0000)]
update the tutorial to use CreateFAdd to create fp operations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112733
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 19:28:41 +0000 (19:28 +0000)]
The register allocator shouldn't consider allocating reserved registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112728
91177308-0d34-0410-b5e6-
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Owen Anderson [Wed, 1 Sep 2010 19:20:46 +0000 (19:20 +0000)]
Disable CorrelatedValuePropagation while I track down selfhost failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112727
91177308-0d34-0410-b5e6-
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Jim Grosbach [Wed, 1 Sep 2010 19:16:29 +0000 (19:16 +0000)]
tidy up a few 80-column and trailing whitespace bits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112726
91177308-0d34-0410-b5e6-
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Bill Wendling [Wed, 1 Sep 2010 18:32:56 +0000 (18:32 +0000)]
The output of opt -stats must be sent to stderr. Patch by NAKAMURA Takumi!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112724
91177308-0d34-0410-b5e6-
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Owen Anderson [Wed, 1 Sep 2010 18:30:15 +0000 (18:30 +0000)]
Tentatively add correlated value propagation to the set of standard passes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112723
91177308-0d34-0410-b5e6-
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Owen Anderson [Wed, 1 Sep 2010 18:27:22 +0000 (18:27 +0000)]
JumpThreading keeps LazyValueInfo up to date, so we don't need to rerun it
if we schedule another LVI-using pass afterwards.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112722
91177308-0d34-0410-b5e6-
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Eric Christopher [Wed, 1 Sep 2010 18:01:32 +0000 (18:01 +0000)]
Add some more load types in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112721
91177308-0d34-0410-b5e6-
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Eric Christopher [Wed, 1 Sep 2010 17:29:10 +0000 (17:29 +0000)]
Speculatively revert 112699 and 112702, they seem to be causing
self host errors on clang-x86-64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112719
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 16:11:17 +0000 (16:11 +0000)]
have the makefiles check the llvm-config error code instead of charging
on an producing weird link errors. Patch by Yuri Gribov!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112714
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 16:06:39 +0000 (16:06 +0000)]
dead code patrol
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112713
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 16:04:34 +0000 (16:04 +0000)]
zap dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112712
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 16:00:50 +0000 (16:00 +0000)]
temporarily revert r112664, it is causing a decoding conflict, and
the testcases should be merged.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112711
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 15:44:05 +0000 (15:44 +0000)]
zap dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112708
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 15:39:31 +0000 (15:39 +0000)]
remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112707
91177308-0d34-0410-b5e6-
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Dan Gohman [Wed, 1 Sep 2010 14:20:41 +0000 (14:20 +0000)]
Make tool_output_file's raw_ostream instance a member variable instead
of a base class.
This makes it possible to unregister the file from FilesToRemove when
the file is done. Also, this eliminates the need for
formatted_tool_output_file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112706
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Dan Gohman [Wed, 1 Sep 2010 14:17:34 +0000 (14:17 +0000)]
Add an interface for unregistering a file from the FilesToRemove list.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112705
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Wed, 1 Sep 2010 14:15:31 +0000 (14:15 +0000)]
COFF: Update tests to reflect changes in last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112704
91177308-0d34-0410-b5e6-
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Michael J. Spencer [Wed, 1 Sep 2010 14:09:36 +0000 (14:09 +0000)]
COFF: Fix incorrect SCT_COMPLEX_TYPE_SHIFT. Add a few constants.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112703
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 1 Sep 2010 14:07:47 +0000 (14:07 +0000)]
Use the SSAUpdator to turn calls to eh.exception that are not in a
landing pad into uses of registers rather than loads from a stack
slot. Doesn't touch the 'orrible hack code - Bill needs to persuade
me harder :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112702
91177308-0d34-0410-b5e6-
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Dan Gohman [Wed, 1 Sep 2010 14:00:35 +0000 (14:00 +0000)]
Make the iterator form of erase return void, since it always succeeds,
and since this is what std::map and std::set do.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112701
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 1 Sep 2010 13:07:11 +0000 (13:07 +0000)]
Define LLVM_GLOBAL_VISIBILITY to be __declspec(dllexport) on
windows systems.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112700
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 1 Sep 2010 10:29:33 +0000 (10:29 +0000)]
If PrototypeValue is erased in the middle of using the SSAUpdator
then the SSAUpdator may access freed memory. Instead, simply pass
in the type and name explicitly, which is all that was used anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112699
91177308-0d34-0410-b5e6-
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Duncan Sands [Wed, 1 Sep 2010 09:26:00 +0000 (09:26 +0000)]
Add convenience class for working with eh.exception calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112698
91177308-0d34-0410-b5e6-
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Dale Johannesen [Wed, 1 Sep 2010 05:19:06 +0000 (05:19 +0000)]
Attempt to fix buildbot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112697
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 05:14:33 +0000 (05:14 +0000)]
add a gross hack to work around a problem that Argiris reported
on llvmdev: SRoA is introducing MMX datatypes like <1 x i64>,
which then cause random problems because the X86 backend is
producing mmx stuff without inserting proper emms calls.
In the short term, force off MMX datatypes. In the long term,
the X86 backend should not select generic vector types to MMX
registers. This is being worked on, but won't be done in time
for 2.8. rdar://
8380055
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112696
91177308-0d34-0410-b5e6-
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Chris Lattner [Wed, 1 Sep 2010 05:10:14 +0000 (05:10 +0000)]
filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112695
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Wed, 1 Sep 2010 05:08:25 +0000 (05:08 +0000)]
Use movlps, movlpd, movss and movsd specific nodes instead of pattern matching with movlp pattern fragment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112694
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Dan Gohman [Wed, 1 Sep 2010 01:45:53 +0000 (01:45 +0000)]
Revert 112442 and 112440 until the compile time problems introduced
by 112440 are resolved.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112692
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Wed, 1 Sep 2010 00:57:08 +0000 (00:57 +0000)]
minor change, simplify some logic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112689
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Wed, 1 Sep 2010 00:51:36 +0000 (00:51 +0000)]
Move some functions around so they can be used for some other to come function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112687
91177308-0d34-0410-b5e6-
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Dale Johannesen [Wed, 1 Sep 2010 00:40:09 +0000 (00:40 +0000)]
Add some MMX intrinsics that duplicate functionality
available in normal llvm operators. We aren't going to
use those for MMX any more because it's unsafe for the
optimizers to synthesize new MMX instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112685
91177308-0d34-0410-b5e6-
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Devang Patel [Tue, 31 Aug 2010 23:50:19 +0000 (23:50 +0000)]
Use absolute label for DW_AT_stmt_list if a target does not prefer offset here.
This patch was developed on top of original patch by Artur Pietrek.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112678
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Dale Johannesen [Tue, 31 Aug 2010 23:43:55 +0000 (23:43 +0000)]
Testcase for llvm checkin 112674.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112675
91177308-0d34-0410-b5e6-
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Benjamin Kramer [Tue, 31 Aug 2010 23:38:13 +0000 (23:38 +0000)]
Remove noisy semicolon.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112673
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 31 Aug 2010 23:00:16 +0000 (23:00 +0000)]
licm is wasting time hoisting constant foldable operations,
instead of hoisting them, just fold them away. This occurs in the
testcase for PR8041, for example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112669
91177308-0d34-0410-b5e6-
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Kevin Enderby [Tue, 31 Aug 2010 22:55:11 +0000 (22:55 +0000)]
This is the second of three patches to implement support for the .loc directive
and output the dwarf line number tables. This takes the current loc info after
an instruction is assembled and saves the needed info into an object that has
vector and for each section. These objects will be used for the final patch to
build and emit the encoded dwarf line number tables. Again for now this is only
in the Mach-O streamer but at some point will move to a more generic place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112668
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Dan Gohman [Tue, 31 Aug 2010 22:53:17 +0000 (22:53 +0000)]
Reapply r112432, now that the real problem is addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112667
91177308-0d34-0410-b5e6-
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Dan Gohman [Tue, 31 Aug 2010 22:52:12 +0000 (22:52 +0000)]
Reapply r112433, now that the real problem is addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112666
91177308-0d34-0410-b5e6-
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Dan Gohman [Tue, 31 Aug 2010 22:50:31 +0000 (22:50 +0000)]
Revert r110916. This patch is buggy because the code inside the
inner loop doesn't update all the variables in the outer loop.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112665
91177308-0d34-0410-b5e6-
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Bill Wendling [Tue, 31 Aug 2010 22:41:22 +0000 (22:41 +0000)]
We have a chance for an optimization. Consider this code:
int x(int t) {
if (t & 256)
return -26;
return 0;
}
We generate this:
tst.w r0, #256
mvn r0, #25
it eq
moveq r0, #0
while gcc generates this:
ands r0, r0, #256
it ne
mvnne r0, #25
bx lr
Scandalous really!
During ISel time, we can look for this particular pattern. One where we have a
"MOVCC" that uses the flag off of a CMPZ that itself is comparing an AND
instruction to 0. Something like this (greatly simplified):
%r0 = ISD::AND ...
ARMISD::CMPZ %r0, 0 @ sets [CPSR]
%r0 = ARMISD::MOVCC 0, -26 @ reads [CPSR]
All we have to do is convert the "ISD::AND" into an "ARM::ANDS" that sets [CPSR]
when it's zero. The zero value will all ready be in the %r0 register and we only
need to change it if the AND wasn't zero. Easy!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112664
91177308-0d34-0410-b5e6-
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Anton Korobeynikov [Tue, 31 Aug 2010 22:38:00 +0000 (22:38 +0000)]
Some fixes for NetBSD
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112662
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Tue, 31 Aug 2010 22:35:05 +0000 (22:35 +0000)]
Use x86 specific MOVSLDUP node, add more patterns to match it and remove useless load nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112661
91177308-0d34-0410-b5e6-
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Devang Patel [Tue, 31 Aug 2010 22:22:42 +0000 (22:22 +0000)]
Reapply r112623. Included additional check for unused byval argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112659
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Tue, 31 Aug 2010 22:22:11 +0000 (22:22 +0000)]
Use x86 specific MOVSHDUP node and add more patterns to match it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112657
91177308-0d34-0410-b5e6-
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Bill Wendling [Tue, 31 Aug 2010 22:05:37 +0000 (22:05 +0000)]
And ANDS pattern to match the t2ANDS pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112654
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 31 Aug 2010 22:01:07 +0000 (22:01 +0000)]
Stack slot access methods are in TargetInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112653
91177308-0d34-0410-b5e6-
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Dale Johannesen [Tue, 31 Aug 2010 21:53:15 +0000 (21:53 +0000)]
Comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112652
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 31 Aug 2010 21:51:07 +0000 (21:51 +0000)]
Make %EFLAGS unallocatable.
No CCR virtual registers should exist, and %EFLAGS is used in ways that can
surprise RegAllocFast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112650
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 31 Aug 2010 21:51:05 +0000 (21:51 +0000)]
Track liveness of unallocatable, unreserved registers in machine DCE.
Reserved registers are unpredictable, and are treated as always live by machine
DCE.
Allocatable registers are never reserved, and can be used for virtual registers.
Unreserved, unallocatable registers can not be used for virtual registers, but
otherwise behave like a normal allocatable register. Most targets only have
the flag register in this set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112649
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Tue, 31 Aug 2010 21:38:49 +0000 (21:38 +0000)]
Use MOVHLPS node instead of matching using movhlps and movhlps_undef pattern fragments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112644
91177308-0d34-0410-b5e6-
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Chris Lattner [Tue, 31 Aug 2010 21:21:25 +0000 (21:21 +0000)]
tidy up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112643
91177308-0d34-0410-b5e6-
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Bruno Cardoso Lopes [Tue, 31 Aug 2010 21:15:21 +0000 (21:15 +0000)]
Use MOVLHPS and MOVHLPS x86 nodes whenever possible. Also remove some useless nodes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112642
91177308-0d34-0410-b5e6-
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Dan Gohman [Tue, 31 Aug 2010 20:58:44 +0000 (20:58 +0000)]
Revert r112432. It appears to be exposing a problem in the emacs build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112638
91177308-0d34-0410-b5e6-
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Owen Anderson [Tue, 31 Aug 2010 20:27:17 +0000 (20:27 +0000)]
Merge 2010-08-31-InfiniteRecursion.ll into crash.ll.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112635
91177308-0d34-0410-b5e6-
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Owen Anderson [Tue, 31 Aug 2010 20:26:04 +0000 (20:26 +0000)]
More cleanups of my JumpThreading transforms, including extracting some duplicated code into a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112634
91177308-0d34-0410-b5e6-
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Jakob Stoklund Olesen [Tue, 31 Aug 2010 19:54:25 +0000 (19:54 +0000)]
Ignore unallocatable registers in RegAllocFast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112632
91177308-0d34-0410-b5e6-
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Devang Patel [Tue, 31 Aug 2010 19:41:03 +0000 (19:41 +0000)]
Revert r112623. It is causing self host build failures.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112631
91177308-0d34-0410-b5e6-
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Duncan Sands [Tue, 31 Aug 2010 19:40:21 +0000 (19:40 +0000)]
Update the Ada instructions to LLVM 2.7 (from LLVM 2.5).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112630
91177308-0d34-0410-b5e6-
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Owen Anderson [Tue, 31 Aug 2010 19:24:27 +0000 (19:24 +0000)]
Add an RAII helper to make cleanup of the RecursionSet more fool-proof.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112628
91177308-0d34-0410-b5e6-
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Owen Anderson [Tue, 31 Aug 2010 18:55:52 +0000 (18:55 +0000)]
Only try to clean up the current block if we changed that block already.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112625
91177308-0d34-0410-b5e6-
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Jim Grosbach [Tue, 31 Aug 2010 18:52:31 +0000 (18:52 +0000)]
SP relative offsets need to be adjusted by the local allocation size when
determining if they're likely to be in range of the SP when resolving
frame references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112624
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Devang Patel [Tue, 31 Aug 2010 18:50:09 +0000 (18:50 +0000)]
Remember byval argument's frame index during argument lowering and use this info to emit debug info.
Fixes Radar
8367011.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112623
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Jim Grosbach [Tue, 31 Aug 2010 18:49:31 +0000 (18:49 +0000)]
this assert should just be a condition, since this function is just asking if
the offset is legally encodable, not actually trying to do the encoding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112622
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Owen Anderson [Tue, 31 Aug 2010 18:49:12 +0000 (18:49 +0000)]
Add a test for the duplicated-conditional situation illutrated by PR5652.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112621
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Owen Anderson [Tue, 31 Aug 2010 18:48:48 +0000 (18:48 +0000)]
Refactor my fix for PR5652 to terminate the predecessor lookups after the first failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112620
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Chris Lattner [Tue, 31 Aug 2010 18:44:03 +0000 (18:44 +0000)]
merge two tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112617
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Owen Anderson [Tue, 31 Aug 2010 18:16:29 +0000 (18:16 +0000)]
Manually reduce this testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112615
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Chris Lattner [Tue, 31 Aug 2010 18:05:08 +0000 (18:05 +0000)]
merge two tests and convert to filecheck.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112613
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Owen Anderson [Tue, 31 Aug 2010 17:59:07 +0000 (17:59 +0000)]
Add a micro-test for the transforms I added to JumpThreading.
I have not been able to find a way to test each in isolation, for a few reasons:
1) The ability to look-through non-i1 BinaryOperator's requires the ability to look through non-constant
ICmps in order for it to ever trigger.
2) The ability to do LVI-powered PHI value determination only matters in cases that ProcessBranchOnPHI
can't handle. Since it already handles all the cases without other instructions in the def-use chain
between the PHI and the branch, it requires the ability to look through ICmps and/or BinaryOperators
as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112611
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Jim Grosbach [Tue, 31 Aug 2010 17:58:47 +0000 (17:58 +0000)]
Update test for 112609
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112610
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Jim Grosbach [Tue, 31 Aug 2010 17:58:19 +0000 (17:58 +0000)]
Improve virtual frame base register allocation heuristics.
1. Allocate them in the entry block of the function to enable function-wide
re-use. The instructions to create them should be re-materializable, so
there shouldn't be additional cost compared to creating them local
to the basic blocks where they are used.
2. Collect all of the frame index references for the function and sort them
by the local offset referenced. Iterate over the sorted list to
allocate the virtual base registers. This enables creation of base
registers optimized for positive-offset access of frame references.
(Note: This may be appropriate to later be a target hook to do the
sorting in a target appropriate manner. For now it's done here for
simplicity.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112609
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Dan Gohman [Tue, 31 Aug 2010 17:56:47 +0000 (17:56 +0000)]
Speculatively revert r112433.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112608
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Benjamin Kramer [Tue, 31 Aug 2010 17:03:33 +0000 (17:03 +0000)]
Allow creation of SHT_NULL sections, from Roman Divacky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112605
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Duncan Sands [Tue, 31 Aug 2010 09:05:06 +0000 (09:05 +0000)]
Stop using the dom frontier in DwarfEHPrepare by not promoting alloca's
any more. I plan to reimplement alloca promotion using SSAUpdater later.
It looks like Bill's URoR logic really always needs domtree, so the pass
now always asks for domtree info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112597
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Nick Lewycky [Tue, 31 Aug 2010 08:29:37 +0000 (08:29 +0000)]
Fix an infinite loop; merging two functions will create a new function (if the
two are weak, we make them thunks to a new strong function) so don't iterate
through the function list as we're modifying it.
Also add back the outermost loop which got removed during the cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112595
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Owen Anderson [Tue, 31 Aug 2010 07:55:56 +0000 (07:55 +0000)]
Don't perform an extra traversal of the function just to do cleanup. We can safely simplify instructions after each block has been processed without worrying about iterator invalidation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112594
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Bill Wendling [Tue, 31 Aug 2010 07:50:46 +0000 (07:50 +0000)]
- Cleanup some whitespaces.
- Convert {0,1} and friends into 0b01, which is identical and more consistent.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112593
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Owen Anderson [Tue, 31 Aug 2010 07:50:31 +0000 (07:50 +0000)]
Rename test directory to reflect new pass name.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112592
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Owen Anderson [Tue, 31 Aug 2010 07:48:34 +0000 (07:48 +0000)]
Rename ValuePropagation to a more descriptive CorrelatedValuePropagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112591
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Owen Anderson [Tue, 31 Aug 2010 07:41:39 +0000 (07:41 +0000)]
Rename file to something more descriptive.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112590
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Owen Anderson [Tue, 31 Aug 2010 07:36:34 +0000 (07:36 +0000)]
More Chris-inspired JumpThreading fixes: use ConstantExpr to correctly constant-fold undef, and be more careful with its return value.
This actually exposed an infinite recursion bug in ComputeValueKnownInPredecessors which theoretically already existed (in JumpThreading's
handling of and/or of i1's), but never manifested before. This patch adds a tracking set to prevent this case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112589
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Michael J. Spencer [Tue, 31 Aug 2010 06:36:46 +0000 (06:36 +0000)]
Cleanup Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112587
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Michael J. Spencer [Tue, 31 Aug 2010 06:36:33 +0000 (06:36 +0000)]
System: Fix getMagicNumber on windows.
getMagicNumber was treating the _binary_ data it read in as a
null terminated string. This resulted in the std::string
calculating the length, and causing an assert in other code that
assumed that the length it passed was the same as the length of
the string it would get back.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112586
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Michael J. Spencer [Tue, 31 Aug 2010 06:36:22 +0000 (06:36 +0000)]
Fix spelling/typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112585
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Devang Patel [Tue, 31 Aug 2010 06:12:08 +0000 (06:12 +0000)]
Offset is not always unsigned number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112584
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Devang Patel [Tue, 31 Aug 2010 06:11:28 +0000 (06:11 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112583
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Nick Lewycky [Tue, 31 Aug 2010 05:53:05 +0000 (05:53 +0000)]
Switch to DenseSet, simplifying much more code. We now have a single iteration
where we hash, compare and fold, instead of one iteration where we build up
the hash buckets and a second one to fold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112582
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Owen Anderson [Tue, 31 Aug 2010 04:41:06 +0000 (04:41 +0000)]
Remove r111665, which implemented store-narrowing in InstCombine. Chris discovered a miscompilation in it, and it's not easily
fixable at the optimizer level. I'll investigate reimplementing it in DAGCombine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112575
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Bruno Cardoso Lopes [Tue, 31 Aug 2010 02:36:20 +0000 (02:36 +0000)]
zap unused method. x86 is the only user and already has a more powerfull version
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112571
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