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2011-08-28Bitcasts are transitive. Bitcast-Bitcast-X becomes Bitcast-X.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138722 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-28Fix integer overflow bug in raw_ostream::write. This showed up as aNick Lewycky
non-deterministic crash in the test suite. Fixes PR10055! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138717 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27The 'expected' argument to EXPECT_EQ is actually the first one;John McCall
flip these tests around. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Silence GCC warnings and make an array const.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138706 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Report failure if there are less bytes than requested in a MemoryObject.Benjamin Kramer
Before we just left the remaining bytes uninitialized. This is another step in making llvm valgrind-clean again. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Reverted r138652, valgrind doesn't understand obj:*/tblgen.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138703 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Auto upgrade the old EH scheme to use the new one. This is on a trial basis. IfBill Wendling
things to disasterously over night, this can be reverted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138702 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Reverting r138695 to see if it fixes clang self host.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Only delete instructions once.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138700 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Update to new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138699 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Cannot have an llvm.eh.exception call in a non-landing pad block.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138698 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27These splits should be done whether they are critical edges or not.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138697 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-27Fix PassManager stack depths.Andrew Trick
Patch by Xiaoyi Guo! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138695 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Excluding ARM JIT tests until someone can fix this compilation path.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138676 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Improve encoding support for BLX with immediat eoperands, and fix a BLX ↵Owen Anderson
decoding bug this uncovered. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138675 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Correct encoding of BL with immediate offset.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138673 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26ARM assembly parsing tweak for pldw.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138669 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Spelling fail.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138667 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Thumb2 assembler parsing and encoding of IT instruction.Jim Grosbach
This handles only the handling of the IT instruction itself, not the processing and validation of the instructions in the IT block. That's next, and will include encoding tests for IT itself. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Update the dominator tree with the correct dominator for the new 'unwind' block.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138664 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Add support for generating CMPXCHG16B on x86-64 for the cmpxchg IR instruction.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138660 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Split the landing pad block only if it's a critical edge. Also intelligentlyBill Wendling
split it in the other place where we're splitting critical edges. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138658 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Fix ARM codegen breakage caused by r138653.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138657 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Revert r138606 until LowerInvoke has been converted to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138656 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Whitespace and 80-col.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138654 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26invalid-LDR_PRE-arm.txt was already passing, but for the wrong reasons. We ↵Owen Anderson
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
2011-08-26valgrind: Always suppress tblgen leaks.Andrew Trick
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
2011-08-26Don't sink landingpad instructions during ind-var simplification.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138651 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Use %% for literals in RUN lines.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138647 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Update for feedback from Jim.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138642 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26lit: Add %T as a replacement for the output directoryDouglas Gregor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138640 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26ARMDisassembler: Always return a size, even when disassembling fails.Benjamin Kramer
This should fix PR10772. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138636 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Support an extension of ARM asm syntax to allow immediate operands to ADR ↵Owen Anderson
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
2011-08-26We don't care if TableGen leaks memory.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138634 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Don't insert branch hint lables that are never used. Kalle Raiskila
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Add a testcase for r138625.Owen Anderson
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26Fix PR10755 by checking for invalid predicate codes from UNPREDICTABLE t2IT ↵Owen Anderson
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
2011-08-26Fix disassembling of VCVTSD2SICraig Topper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-26LoopInfo::updateUnloop fix, and verify Block->Loop maps.Andrew Trick
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
2011-08-26Atomic load/store on ARM/Thumb.Eli Friedman
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
2011-08-26Address review comments.Benjamin Kramer
- 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
2011-08-26SimplifyCFG: If we have a PHI node that can evaluate to NULL and do a load ↵Benjamin Kramer
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
2011-08-25Update to the new EH scheme.Bill Wendling
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138606 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Look at only the terminators of the basic block. Also, if we're using the new EHBill Wendling
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
2011-08-25Initial check in that will auto-upgrade the old EH scheme to the new EH scheme.Bill Wendling
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
2011-08-25Do the same as r138461. Mark VZEROALL as clobbering all YMM registersBruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138592 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Remove stray fullstop.Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Add support for AVX 256-bit version of MOVDDUP!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138588 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Make isMOVDDUP mask check more strict and update comments!Bruno Cardoso Lopes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138587 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-25Constify ComparisonDavid Greene
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
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