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Author SHA1 Message Date
Bill Wendling
1f4a32f5ac Revert r138606 until LowerInvoke has been converted to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138656 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 21:11:23 +00:00
Eric Christopher
6c0046f5d4 Whitespace and 80-col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138654 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 21:02:40 +00:00
Owen Anderson
9ab0f25fc1 invalid-LDR_PRE-arm.txt was already passing, but for the wrong reasons. We were failing to specify enough fixed bits of LDR_PRE/LDRB_PRE, resulting in decoding conflicts. Separate them into immediate vs. register versions, allowing us to specify the necessary fixed bits. This in turn results in the test being decoded properly, and being rejected as UNPREDICTABLE rather than a hard failure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 20:43:14 +00:00
Andrew Trick
ae5ea6cab0 valgrind: Always suppress tblgen leaks. 
I'll clean up the rest of the XFAIL: vg_leak lines if this works.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138652 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 20:41:20 +00:00
Bill Wendling
2b18881185 Don't sink landingpad instructions during ind-var simplification. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138651 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 20:40:15 +00:00
Andrew Trick
6ca06cd8a8 Use %% for literals in RUN lines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138647 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 20:09:48 +00:00
Owen Anderson
1af7f7291d Update for feedback from Jim. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138642 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 19:39:26 +00:00
Douglas Gregor
0f9d34c71d lit: Add %T as a replacement for the output directory 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138640 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 19:05:18 +00:00
Benjamin Kramer
86ce852a15 ARMDisassembler: Always return a size, even when disassembling fails. 
This should fix PR10772.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138636 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 18:21:36 +00:00
Owen Anderson
96425c8464 Support an extension of ARM asm syntax to allow immediate operands to ADR instructions. This is helpful for disassembler testing, and indeed exposed a disassembler bug that is also fixed here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138635 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 18:09:22 +00:00
Benjamin Kramer
06a531ff63 We don't care if TableGen leaks memory. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138634 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 17:00:30 +00:00
Kalle Raiskila
54f8a9f54d Don't insert branch hint lables that are never used. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 10:14:56 +00:00
Owen Anderson
5a18f20dab Add a testcase for r138625. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138626 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 06:45:08 +00:00
Owen Anderson
9bd655dcde Fix PR10755 by checking for invalid predicate codes from UNPREDICTABLE t2IT instructions when decoding their successors. 
This is the last disassembly crash detected by exhaustive Thumb2 instruction space.  Major thanks to Chandler Carruth for making this kind of exhaustive testing possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 06:19:51 +00:00
Craig Topper
8fd13b6de5 Fix disassembling of VCVTSD2SI 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138623 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 04:49:29 +00:00
Andrew Trick
5434c1e73b LoopInfo::updateUnloop fix, and verify Block->Loop maps. 
Fixes an oversight, and adds verification to catch it in the unloop.ll tests.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138622 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 03:06:34 +00:00
Eli Friedman
069e2ed794 Atomic load/store on ARM/Thumb. 
I don't really like the patterns, but I'm having trouble coming up with a
better way to handle them.

I plan on making other targets use the same legalization
ARM-without-memory-barriers is using... it's not especially efficient, but
if anyone cares, it's not that hard to fix for a given target if there's
some better lowering.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138621 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 02:59:24 +00:00
Benjamin Kramer
9bb5488dbd Address review comments. 
- Reword comments.
- Allow undefined behavior interfering with undefined behavior.
- Add address space checks.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138619 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 02:25:55 +00:00
Benjamin Kramer
98d6d2372f SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load or store to the address returned by the PHI node then we can consider this incoming value as dead and remove the edge pointing there, unless there are instructions that can affect control flow executed in between. 
In theory this could be extended to other instructions, eg. division by zero, but it's likely that it will "miscompile" some code because people depend on div by zero not trapping. NULL pointer dereference usually leads to a crash so we should be on the safe side.

This shrinks the size of a Release clang by 16k on x86_64.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-26 01:22:29 +00:00
Bill Wendling
1a9a2d0d6b Update to the new EH scheme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138606 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 23:48:37 +00:00
Bill Wendling
09908c4b4a Look at only the terminators of the basic block. Also, if we're using the new EH 
scheme, return 'true' so that it doesn't try to run the old EH scheme's fixup on
the new code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138605 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 23:48:11 +00:00
Bill Wendling
c82a61c6c6 Initial check in that will auto-upgrade the old EH scheme to the new EH scheme. 
This upgrade suffers from the problems of the old EH scheme - i.e., that the
calls to llvm.eh.exception() and llvm.eh.selector() can wander off and get
lost. It makes a valiant effort to reclaim these little lost lambs.

This is a first draft, so it hasn't yet been hooked up to the parser.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138602 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 23:22:40 +00:00
Bruno Cardoso Lopes
f1a264232c Do the same as r138461. Mark VZEROALL as clobbering all YMM registers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138592 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 22:23:58 +00:00
Nick Lewycky
b210cbf692 Remove stray fullstop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138589 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:46:20 +00:00
Bruno Cardoso Lopes
6292eceea0 Add support for AVX 256-bit version of MOVDDUP! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138588 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:40:37 +00:00
Bruno Cardoso Lopes
06ef923d14 Make isMOVDDUP mask check more strict and update comments! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138587 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 21:40:34 +00:00
David Greene
32c371f0df Constify Comparison 
Make ConstantInt::uge() const so it may be used in const contexts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138579 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 20:18:22 +00:00
Owen Anderson
99906830e8 Port over additional encoding tests to decoding tests, and fix an operand ordering bug this exposed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138575 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 18:30:18 +00:00
Benjamin Kramer
cf847bfa6f Intel family 6 model 44 is Gulftown/Westmere-EP and doesn't have AVX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138573 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 18:05:56 +00:00
Andrew Trick
b9ca5124f8 ARM fix for missing implicit operands on ldmia_ret. 
rdar://10005094: miscompile of 176.gcc


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138568 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:50:53 +00:00
Andrew Trick
51972da576 whitespace 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138566 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:40:54 +00:00
Jim Grosbach
0c49ac05cd Explicitly disallow predication in Thumb1 assembly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138562 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 17:23:55 +00:00
Craig Topper
ebc1db0fac Add more missing TB encodings to VEX instructions to allow them to be disassembled. Fixes remainder of PR10678. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138553 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 08:11:01 +00:00
Craig Topper
113061d39b Give ATTR_VEX higher priority when generating the disassembler context table. Fixes disassembling of VEX instructions with 'pp'=00. Fixes subset of PR10678. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138552 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 07:42:00 +00:00
Craig Topper
ea03659d23 Add TB encoding to VEROALL, VZEROUPPER, and VCVTPS2PD to allow them to be disassembled. Fixes PR10723. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138551 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 06:57:46 +00:00
Bill Wendling
8b6af8a2a9 LSR wants to split the landing pad's critical edge. Let it do it, but use the 
proper function to do it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138550 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 05:55:40 +00:00
Benjamin Kramer
2df9f8df95 Initialize member variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138548 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 04:04:18 +00:00
Bruno Cardoso Lopes
07b7f672a0 Add support for 256-bit versions of VSHUFPD and VSHUFPS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138546 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 02:58:26 +00:00
Bruno Cardoso Lopes
e7461c0353 Add memory version of SHUFPD to mask decoding! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138545 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 02:58:21 +00:00
Eli Friedman
4ba10867bd Remove empty directories. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138542 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:33:48 +00:00
Bill Wendling
76cf779bb8 Update tests to the newest EH syntax. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138541 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:30:18 +00:00
Evan Cheng
77eaaf0a0c Hide -global-merge option. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138540 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:22:49 +00:00
Bill Wendling
c5fb9d86b0 Add feature test for the new exception handling stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138539 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:19:13 +00:00
Bill Wendling
89d4411cef When inserting new instructions, use getFirstInsertionPt instead of 
getFirstNonPHI so that it will skip over the landingpad instructions as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138537 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:08:34 +00:00
Evan Cheng
b8cfe4ff41 Add a command line option to disable global merge pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138536 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 01:00:36 +00:00
Evan Cheng
0f660260e6 Remove a out-of-place comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138534 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-25 00:54:42 +00:00
Bruno Cardoso Lopes
27831e5e6f Create a section for non-instructions patterns in the beginning of the 
file, and move more code around!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138521 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:11 +00:00
Bruno Cardoso Lopes
9993499057 Move code around! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138520 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:09 +00:00
Bruno Cardoso Lopes
de79231468 Organize UNPCK* patterns, also add remaining for AVX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138519 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:06 +00:00
Bruno Cardoso Lopes
4cf4778ac4 Move remaining MOVDDUP patterns close to MOVDDUP defintion and duplicate 
the missing ones for AVX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138518 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-08-24 23:18:04 +00:00