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* Change objectsize intrinsic to accept different address spaces.Matt Arsenault2013-10-07
| | | | | | | Bitcasting everything to i8* won't work. Autoupgrade the old intrinsic declarations to use the new mangling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@192117 91177308-0d34-0410-b5e6-96231b3b80d8
* Add missing REQUIRES: asserts in crash.ll.Andrew Trick2013-06-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184576 91177308-0d34-0410-b5e6-96231b3b80d8
* Update physreg live intervals during remat.Andrew Trick2013-06-21
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184574 91177308-0d34-0410-b5e6-96231b3b80d8
* TBAA: remove !tbaa from testing cases if not used.Manman Ren2013-04-30
| | | | | | | | This will make it easier to turn on struct-path aware TBAA since the metadata format will change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180796 91177308-0d34-0410-b5e6-96231b3b80d8
* Unify clang/llvm attributes for asan/tsan/msan (LLVM part)Kostya Serebryany2013-02-26
| | | | | | | | | | | | | | | | | | | | These are two related changes (one in llvm, one in clang). LLVM: - rename address_safety => sanitize_address (the enum value is the same, so we preserve binary compatibility with old bitcode) - rename thread_safety => sanitize_thread - rename no_uninitialized_checks -> sanitize_memory CLANG: - add __attribute__((no_sanitize_address)) as a synonym for __attribute__((no_address_safety_analysis)) - add __attribute__((no_sanitize_thread)) - add __attribute__((no_sanitize_memory)) for S in address thread memory If -fsanitize=S is present and __attribute__((no_sanitize_S)) is not set llvm attribute sanitize_S git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176075 91177308-0d34-0410-b5e6-96231b3b80d8
* Never attempt to join an early-clobber def with a regular kill.Jakob Stoklund Olesen2012-10-27
| | | | | | This fixes PR14194. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166880 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix coalescing with IMPLICIT_DEF values.Jakob Stoklund Olesen2012-10-12
| | | | | | | | | | | | | | | | PHIElimination inserts IMPLICIT_DEF instructions to guarantee that all PHI predecessors have a live-out value. These IMPLICIT_DEF values are not considered to be real interference when coalescing virtual registers: %vreg1 = IMPLICIT_DEF %vreg2 = MOV32r0 When joining %vreg1 and %vreg2, the IMPLICIT_DEF instruction and its value number should simply be erased since the %vreg2 value number now provides a live-out value for the PHI predecesor block. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165813 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid dereferencing a NULL pointer.Jakob Stoklund Olesen2012-09-27
| | | | | | Fixes PR13943. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164778 91177308-0d34-0410-b5e6-96231b3b80d8
* Ensure CopyToReg nodes are always glued to the call instruction.Jakob Stoklund Olesen2012-07-04
| | | | | | | | | | | | | The CopyToReg nodes that set up the argument registers before a call must be glued to the call instruction. Otherwise, the scheduler may emit the physreg copies long before the call, causing long live ranges for the fixed registers. Besides disabling good register allocation, that can also expose problems when EmitInstrWithCustomInserter() splits a basic block during the live range of a physreg. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159721 91177308-0d34-0410-b5e6-96231b3b80d8
* Clear kill flags in InstrEmitter::EmitSubregNode().Jakob Stoklund Olesen2012-06-29
| | | | | | | When a local virtual register is made global, make sure to clear any existing kill flags. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159461 91177308-0d34-0410-b5e6-96231b3b80d8
* revert my previous patches that introduced an additional parameter to the ↵Nuno Lopes2012-05-22
| | | | | | | | objectsize intrinsic. After a lot of discussion, we realized it's not the best option for run-time bounds checking git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@157255 91177308-0d34-0410-b5e6-96231b3b80d8
* change the objectsize intrinsic signature: add a 3rd parameter to denote the ↵Nuno Lopes2012-05-09
| | | | | | | | maximum runtime performance penalty that the user is willing to accept. This commit only adds the parameter. Code taking advantage of it will follow. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@156473 91177308-0d34-0410-b5e6-96231b3b80d8
* Upgrade syntax of tests using volatile instructions to use 'load volatile' ↵Chris Lattner2011-11-27
| | | | | | instead of 'volatile load', which is archaic. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145171 91177308-0d34-0410-b5e6-96231b3b80d8
* Also inflate register classes around inline asm.Jakob Stoklund Olesen2011-10-12
| | | | | | | | | | Now that MI->getRegClassConstraint() can also handle inline assembly, don't bail when recomputing the register class of a virtual register used by inline asm. This fixes PR11078. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141836 91177308-0d34-0410-b5e6-96231b3b80d8
* Only access both operands of an INSERT_SUBVECTOR if it is an INSERT_SUBVECTOR.Bill Wendling2011-08-04
| | | | | | | Fixes PR10527. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136853 91177308-0d34-0410-b5e6-96231b3b80d8
* Correctly handle <undef> tied uses when rewriting after a split.Jakob Stoklund Olesen2011-07-24
| | | | | | | | | | | This fixes PR10463. A two-address instruction with an <undef> use operand was incorrectly rewritten so the def and use no longer used the same register, violating the tie constraint. Fix this by always rewriting <undef> operands with the register a def operand would use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135885 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR10277.Jakob Stoklund Olesen2011-07-05
| | | | | | | | | | | | | | | Remat during spilling triggers dead code elimination. If a phi-def becomes unused, that may also cause live ranges to split into separate connected components. This type of splitting is different from normal live range splitting. In particular, there may not be a common original interval. When the split range is its own original, make sure that the new siblings are also their own originals. The range being split cannot be used as an original since it doesn't cover the new siblings. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134413 91177308-0d34-0410-b5e6-96231b3b80d8
* In some cases, the "fail BB dominator" may be null after the BB was split (andBill Wendling2011-03-28
| | | | | | | | becomes reachable when before it wasn't). Check to make sure that it's not null before trying to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128434 91177308-0d34-0410-b5e6-96231b3b80d8
* when legalizing extremely wide shifts, make sure that Chris Lattner2011-02-13
| | | | | | | | | | the shift amounts are in a suitably wide type so that we don't generate out of range constant shift amounts. This fixes PR9028. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125458 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR8514, a bug where the "heroic" transformation of shift/and Chris Lattner2011-01-16
| | | | | | | | | | into and/shift would cause nodes to move around and a dangling pointer to happen. The code tried to avoid this with a HandleSDNode, but got the details wrong. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123578 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR8981, a crash trying to form a conditional inc with a floating point ↵Chris Lattner2011-01-16
| | | | | | compare. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123560 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow copies between GR8_ABCD_L and GR8_ABCD_H.Jakob Stoklund Olesen2010-07-07
| | | | | | This fixes PR7540. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107809 91177308-0d34-0410-b5e6-96231b3b80d8
* Move CodeGen/X86/2010-04-19-DAGCombineCrash.ll into CodeGen/X86/crash.ll. AlsoBill Wendling2010-04-20
| | | | | | | reduce. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101925 91177308-0d34-0410-b5e6-96231b3b80d8
* this has a pr!Chris Lattner2010-04-07
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100637 91177308-0d34-0410-b5e6-96231b3b80d8
* fix a latent bug my inline asm stuff exposed: Chris Lattner2010-04-07
| | | | | | | MachineOperand::isIdenticalTo wasn't handling metadata operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100636 91177308-0d34-0410-b5e6-96231b3b80d8
* Implement support for the case when a reference to a addr-of-bb Chris Lattner2010-03-15
| | | | | | | | | | | label is generated, but then the block is deleted. Since the value is undefined, we just emit the label right after the entry label of the function. It might matter that the label is in the same section as the function was afterall. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98579 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix the case when a reference to an address taken BB is emitted in oneChris Lattner2010-03-15
| | | | | | | | | function, then the BB is RAUW'd before the definition is emitted. There are still two cases not being handled, but this should improve us back to the situation before I touched anything. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98566 91177308-0d34-0410-b5e6-96231b3b80d8
* fix ShrinkDemandedOps to not leave dead nodes around,Chris Lattner2010-03-14
| | | | | | | fixing PR6607 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98512 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR6605, X86ISD::CMP always returns i32 (EFLAGS), notChris Lattner2010-03-14
| | | | | | | the operand type. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98507 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR6577, a bug in sdbuilder lowering select instructionsChris Lattner2010-03-12
| | | | | | | whose true value was not Val#0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98336 91177308-0d34-0410-b5e6-96231b3b80d8
* fix PR6533 by updating the br(xor) code to remember the caseChris Lattner2010-03-10
| | | | | | | when it looked past a trunc. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98203 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix PR6497, a bug where we'd fold a load into an addcChris Lattner2010-03-05
node which has a flag. That flag in turn was used by an already-selected adde which turned into an ADC32ri8 which used a selected load which was chained to the load we folded. This flag use caused us to form a cycle. Fix this by not ignoring chains in IsLegalToFold even in cases where the isel thinks it can. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97791 91177308-0d34-0410-b5e6-96231b3b80d8
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