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35803 Commits

Author SHA1 Message Date
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
Bruno Cardoso Lopes
bdef66bf7f Fix stack size bug while using o32 abi 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-02-01 02:03:24 +00:00
Johnny Chen
48d5ccf86a For MVNr and MVNs, we need to set Inst{25} = 0 so as not to confuse the decoder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94955 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 11:22:28 +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
Eli Friedman
1144d7e3cc Remove a completed item, add a couple new ones. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94945 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 04:55:32 +00:00
Eli Friedman
be7cfa6033 Simplify/generalize the xor+add->sign-extend instcombine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94943 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 04:29:12 +00:00
Eli Friedman
694488f477 Add a small transform: transform -(X<<Y) to (-X<<Y) when the shift has a single 
use and X is free to negate.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94941 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 02:30:23 +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
56a5886b20 Do not mark no-return calls tail calls. It'll screw up special calls like longjmp and it doesn't make much sense for performance reason. If my logic is faulty, please let me know. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94937 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-31 00:59:31 +00:00
Bruno Cardoso Lopes
3ed6f876c8 Fix PR6144. Reload GP before the emission of CALLSEQ_END to guarantee the right reload order 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 18:32:07 +00:00
Bruno Cardoso Lopes
5e194602a4 Fix mov.d out register by using the FFR register class directly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 18:29:19 +00:00
Anton Korobeynikov
90cfc130d6 Fix a gross typo: ARMv6+ may or may not support unaligned memory operations. 
Even if they are suported by the core, they can be disabled
(this is just a configuration bit inside some register).

Allow unaligned memops on darwin and conservatively disallow them otherwise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94889 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 14:08:12 +00:00
Bob Wilson
49db68fba0 Check alignment of loads when deciding whether it is safe to execute them 
unconditionally.  Besides checking the offset, also check that the underlying
object is aligned as much as the load itself.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 04:42:39 +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
Devang Patel
1ee0cb9a55 Emit declaration DIE for the class static variables. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94870 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 01:08:30 +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
Dale Johannesen
ca1346122f Fix a case where debug_value could affect codegen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 00:57:47 +00:00
Bob Wilson
6ecfccfd55 Use more specific types to avoid casts. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94863 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-30 00:41:10 +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
Jakob Stoklund Olesen
b489d0f88a Keep iterating over all uses when meeting a phi node in AllUsesOfValueWillTrapIfNull(). 
This bug was exposed by my inliner cost changes in r94615, and caused failures
of lencod on most architectures when building with LTO.

This patch fixes lencod and 464.h264ref on x86-64 (and likely others).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94858 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:54:14 +00:00
Johnny Chen
69a8c7f497 Modified encoding bits specification for VFP instructions. In particular, the D 
bit (Inst{22}) and the M bit (Inst{5}) should be left unspecified.  For binary
format instructions, Inst{6} and Inst{4} need to specified for proper decodings.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:21:10 +00:00
Dan Gohman
4483c7b15a Print a comment next to "materializable" global values, to distinguish 
them from values that are not actually defined in the module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:12:36 +00:00
Evan Cheng
6c2e8a9217 PPC is not ready for sibcall optimization. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94853 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 23:05:56 +00:00
Bob Wilson
fb2ea6130d Preserve load alignment in instcombine transformations. I've been unable to 
create a testcase where this matters.  The select+load transformation only
occurs when isSafeToLoadUnconditionally is true, and in those situations,
instcombine also changes the underlying objects to be aligned.  This seems
like a good idea regardless, and I've verified that it doesn't pessimize
the subsequent realignment.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 22:39:21 +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
Victor Hernandez
2c482f4895 We were not writing bitcode for function-local metadata whose operands have been erased (making it not have any more function-local operands) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94842 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 21:19:19 +00:00
Eric Christopher
36664bfc7a Revert my last couple of patches. They appear to have broken bison. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94841 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 21:16:24 +00:00
Bob Wilson
963e84f9fc Use uint64_t instead of unsigned for offsets and sizes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94835 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 20:34:28 +00:00
Bob Wilson
3eb4f7e2dd Improve isSafeToLoadUnconditionally to recognize that GEPs with constant 
indices are safe if the result is known to be within the bounds of the
underlying object.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94829 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 19:19:08 +00:00
Devang Patel
8cbb6123ac Add size and location info in DW_TAG_class_type descriptor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94822 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 18:34:58 +00:00
Devang Patel
27a53de9b8 Before inserting llvm.dbg.declare intrinsic at the end of a basic block, check whether the basic block has a terminator or not. 
This API is used by clang and the test case is test/CodeGen/debug-info-crash.c in clang module.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94820 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 18:30:57 +00:00
Benjamin Kramer
4f17eb8721 Fix MSVC build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94809 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 15:19:06 +00:00
Benjamin Kramer
5908839ced Convert some users of ftostr to raw_ostream. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94808 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 14:42:22 +00:00
Benjamin Kramer
f304ff63d3 Use llvm::format instead of ftostr (which just calls sprintf). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94807 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 14:40:33 +00:00
Duncan Sands
5c2873a74b Change the SREM case to match the logic in the IR version ComputeMaskedBits. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94805 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 09:45:26 +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
Duncan Sands
ac512171ff Having RHSKnownZero and RHSKnownOne be alternative names for KnownZero and KnownOne 
(via APInt &RHSKnownZero = KnownZero, etc) seems dangerous and confusing to me: it
is easy not to notice this, and then wonder why KnownZero/RHSKnownZero changed
underneath you when you modified RHSKnownZero/KnownZero etc.  So get rid of this.
No intended functionality change (tested with "make check" + llvm-gcc bootstrap).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94802 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 06:18:46 +00:00
Duncan Sands
cfd54181a4 It looks like the changes to the SRem logic of SimplifyDemandedUseBits 
(fix for PR6165) are needed here too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94801 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 06:18:37 +00:00
Eric Christopher
407e47c21e Make strcpy_chk lower to strcpy if we have a safe size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94783 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 01:37:11 +00:00
Eric Christopher
949124ce0f Add constant support to object size handling and remove default 
lowering. We'll either figure it out, or not and be lowered by
SelectionDAGBuild.

Add test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94775 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 01:09:57 +00:00
Bill Wendling
466f37befb Generic reformatting and comment fixing. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94771 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 00:52:43 +00:00
Bill Wendling
9f9113a44b Add newline to debugging output, and fix some grammar-os in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94765 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 00:27:39 +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
Victor Hernandez
1897ed3d37 mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94763 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-29 00:01:35 +00:00
Bill Wendling
4533cac557 Assign the ordering of SDNodes in a much less intrusive fashion. After the 
"visit*" method is called, take the newly created nodes, walk them in a DFS
fashion, and if they don't have an ordering set, then give it one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94757 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 21:51:40 +00:00
Dan Gohman
8ca83b4111 Remove the folding rule 
getelementptr (i8* inttoptr (i64 1 to i8*), i32 -1) 
  to
  inttoptr (i64 0 to i8*)
from the VMCore constant folder. It didn't handle sign-extension properly
in the case where the source integer is smaller than a pointer size. And,
it relied on an assumption about sizeof(i8).

The Analysis constant folder still folds these kinds of things; it has
access to TargetData, so it can do them right.

Add a testcase which tests that the VMCore constant folder doesn't
miscompile this, and that the Analysis folder does fold it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94750 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-28 18:08:26 +00:00