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Author SHA1 Message Date
Owen Anderson
7f17b5a483 t2Bcc is allowed to have a predicate without a preceding IT instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138946 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 17:47:45 +00:00
Jakob Stoklund Olesen
ae779eea27 Revert r138794, "Do not try to rematerialize a value from a partial definition." 
The problem is fixed for all register allocators by r138944, so this
patch is no longer necessary.

<rdar://problem/10032939>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138945 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 17:25:18 +00:00
Jakob Stoklund Olesen
9d548d0343 Prevent remat of partial register redefinitions. 
An instruction that redefines only part of a larger register can never
be rematerialized since the virtual register value depends on the old
value in other parts of the register.

This was fixed for the inline spiller in r138794.  This patch fixes the
problem for all register allocators, and includes a small test case.

<rdar://problem/10032939>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138944 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 17:18:50 +00:00
Evan Cheng
61560e205a Teach MachineLICM reg pressure tracking code to deal with MVT::untyped. Sorry, I can't come up with a small test case. rdar://10043690 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138934 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:45:00 +00:00
Bill Wendling
00c30d58a5 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138933 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:28:25 +00:00
Bill Wendling
a8d1393093 Resubmit with fix. Properly remove the instructions except for landingpad, which should be removed only when its invokes are. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138932 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:28:11 +00:00
Bill Wendling
c1b4cd6c11 Submitted this too early. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138931 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:18:33 +00:00
Bill Wendling
1893cd3131 Don't DCE the landingpad instruction. 
The landingpad instruction can be removed only when its invokes are removed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138930 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:16:58 +00:00
Bill Wendling
65088e7d96 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:08:21 +00:00
Bill Wendling
15db556b56 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138927 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 01:02:41 +00:00
Bill Wendling
aeaa9a8b25 Update some tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138925 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:58:03 +00:00
Andrew Trick
340d78f4e7 PreRA scheduler should avoid cloning compares. 
Added canClobberReachingPhysRegUse() to handle a particular pattern in
which a two-address instruction could be forced to interfere with
EFLAGS, causing a compare to be unnecessarilly cloned.
Fixes rdar://problem/5875261


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138924 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:54:31 +00:00
Bill Wendling
35726bfcaa Don't forget to add the landingpad and resume instructions to the InstructionList. 
This was found via a nightly build of 483.xalancbmk.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138923 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:50:20 +00:00
Jim Grosbach
20ed2e7939 Thumb2 assembly parsing and encoding for ADD(immediate). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-09-01 00:28:52 +00:00
Chad Rosier
dd1e7517b5 Fixup for functions that return a bool. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138918 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:49:05 +00:00
Bill Wendling
b5d92d83b4 Reenable test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138916 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:08:05 +00:00
Bill Wendling
3b5e99d79e Revert accidental commit 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:07:46 +00:00
Eli Friedman
1b73866505 Disable this test until Bill fixes it properly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138914 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 23:03:30 +00:00
Jim Grosbach
de98273189 Static relocation model Thumb jump table interworking. 
Make sure the low bit of the PC is set when loading an address directly
for jump tables in static relocation model.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138912 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 22:23:09 +00:00
Owen Anderson
b45b11bce1 The asm parser currently selects the wrong encoding for non-conditional Thumb2 branches. However, this exposed a number of situations where the decoder was too permissive in allowing invalid instructions to decode successful. Specify additional fixed bits to close those gaps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138910 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 22:00:41 +00:00
Bill Wendling
08c2862540 Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138908 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:50:07 +00:00
Bill Wendling
a29a6b9a6c Update to new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138906 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:44:24 +00:00
Bill Wendling
78ae1f7947 Remove old declare statements. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138905 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:41:20 +00:00
Bill Wendling
6b94b67319 Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138904 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:40:15 +00:00
Bill Wendling
935903191f Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138903 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:39:05 +00:00
Eli Friedman
24adac8b79 Add tests for the transformations SCCP can do on atomic loads and stores (which are safe without any modifications). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138902 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:37:06 +00:00
David Greene
94fca8300d Fix Size Typing 
Stores sizes as uint64_t to avoid possible truncation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138901 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:34:20 +00:00
Bill Wendling
fd245d97f1 Revert r138894. This was failing on cmake-clang-i686-msvc10. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138900 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:20:25 +00:00
Jim Grosbach
c075510e43 Thumb2 t2Bcc should encode as t2B when condition is 'always'. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138898 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:17:31 +00:00
Bruno Cardoso Lopes
fc7bc5889b Move more code around and duplicate AVX patterns: MOVHPS and MOVLPS 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:15:32 +00:00
Bruno Cardoso Lopes
06c982d0e0 Move MOVAPS,MOVUPS patterns close to the instructions definition 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138896 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:15:29 +00:00
Bruno Cardoso Lopes
453f4954f2 Remove "_Int" forms of MOVUPSmr and MOVAPSmr 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138895 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:15:22 +00:00
Bill Wendling
ab98f9d155 Update more tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138894 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 21:04:11 +00:00
Bill Wendling
b072dd9ba4 Update the tests to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138891 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:55:40 +00:00
Bill Wendling
4f8aaa0928 Make sure we aren't deleting the landingpad instruction. 
The landingpad instruction is required in the landing pad block. Because we're
not deleting terminating instructions, the invoke may still jump to here (see
Transforms/SCCP/2004-11-16-DeadInvoke.ll). Remove all uses of the landingpad
instruction, but keep it around until code-gen can remove the basic block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138890 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:55:20 +00:00
Owen Anderson
721cb1fde0 Fix encoding for tBcc with immediate offset operand. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138889 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:26:14 +00:00
Eli Friedman
fcd75e5efb Misc cleanup; addresses Duncan's comments on r138877. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138887 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:13:26 +00:00
Owen Anderson
d84192fe4f When performing instruction selection for LDR_PRE_IMM/LDRB_PRE_IMM, we still need to preserve the sign of the index. This fixes miscompilations of Quicksort in the nightly testsuite, and hopefully others as well. 
<rdar://problem/10046188>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138885 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 20:00:11 +00:00
Jim Grosbach
e0e42bf0bb Run the Thumb1 parser tests in Thumb2 mode, as well. 
Thumb2 is a superset of Thumb1, so all of the encodings should still work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138883 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 19:50:28 +00:00
Jim Grosbach
b80ab8e369 Remove FIXME. Thumb2 MOV instruction will use separate custom tricks. 
When we want encoding T3 (the wide encoding), we can explicitly check for
that and twiddle the CanAcceptCarrySet accordingly. For now, just correctly
handle encodings T1 and T2 when in Thumb2 mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138879 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:39:39 +00:00
Eli Friedman
62bb16cfd1 Fill in type legalization for MERGE_VALUES in all the various cases. Patch by Micah Villmow. (No testcase because the issue only showed up in an out-of-tree backend.) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138877 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:36:04 +00:00
Jim Grosbach
d82175c1f0 Thumb NOP encoding varies depending on ARCH revision. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138876 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:35:46 +00:00
Owen Anderson
559c277aa9 Fix roundtripping of Thumb BL/BLX instructions with immediate offsets instead of labels. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:30:20 +00:00
Jim Grosbach
c9a9b44285 tBcc is OK to be predicated in Thumb2 outside of IT blocks (obviously). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138873 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:29:05 +00:00
Eli Friedman
ba567d670d Generic expansion for atomic load/store into cmpxchg/atomicrmw xchg; implements 64-bit atomic load/store for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:26:09 +00:00
Jim Grosbach
72335d55d9 Thumb2 parsing and encoding for ADC(register). 
Also add instruction aliases for non-.w versions of SBC since they're the
same.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138871 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:23:08 +00:00
Devang Patel
b71541a2db After r138010, subroutine type does not have context info. Update type verifier accordingly. 
This fixes ptype.exp gdb testsuite regressions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138869 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 18:04:31 +00:00
Eli Friedman
4d3f329453 64-bit atomic cmpxchg for ARM. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138868 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:52:22 +00:00
Akira Hatanaka
334b5305a6 Fix typo. Patch by Liu. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138866 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:49:04 +00:00
David Greene
d92e2e4f88 Compress Repeated Byte Output 
Emit a repeated sequence of bytes using .zero.  This saves an enormous
amount of asm file space for certain programs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138864 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-31 17:30:56 +00:00