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* Added support for FP conditional move instructions and fixed bugs in ↵Akira Hatanaka2011-03-3113-288/+726
| | | | | | handling of FP comparisons. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128650 91177308-0d34-0410-b5e6-96231b3b80d8
* Pick better examples. "fpext float 3.1415 to double" won't parse because 3.1415Nick Lewycky2011-03-311-2/+2
| | | | | | | | isn't an exact float. Also "fpext float 1.0 to float" is invalid IR because it's not performing an extension. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128647 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't completely eliminate identity copies that also modify super register ↵Jakob Stoklund Olesen2011-03-312-6/+13
| | | | | | | | | liveness. Turn them into noop KILL instructions instead. This lets the scavenger know when super-registers are killed and defined. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128645 91177308-0d34-0410-b5e6-96231b3b80d8
* Add BLXi to the instruction table for disassembly purpose.Johnny Chen2011-03-313-2/+26
| | | | | | | | | A8.6.23 BLX (immediate) rdar://problem/9212921 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128644 91177308-0d34-0410-b5e6-96231b3b80d8
* Allow kill flags on two-address instructions. They are harmless.Jakob Stoklund Olesen2011-03-311-6/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128643 91177308-0d34-0410-b5e6-96231b3b80d8
* Mark all uses as <undef> when joining a copy.Jakob Stoklund Olesen2011-03-314-9/+21
| | | | | | | | | | | | This way, shrinkToUses() will ignore the instruction that is about to be deleted, and we avoid leaving invalid live ranges that SplitKit doesn't like. Fix a misunderstanding in MachineVerifier about <def,undef> operands. The <undef> flag is valid on def operands where it has the same meaning as <undef> on a use operand. It only applies to sub-register defines which also read the full register. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128642 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove stray empty test file.Daniel Dunbar2011-03-311-0/+0
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128640 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove dead code.Devang Patel2011-03-311-5/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128639 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert r128632 again, until I figure out what break the testsBruno Cardoso Lopes2011-03-3110-360/+87
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128635 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix bug found by valgrind.Jakob Stoklund Olesen2011-03-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128634 91177308-0d34-0410-b5e6-96231b3b80d8
* Add XCore intrinsics for initializing / starting / synchronizing threads.Richard Osborne2011-03-313-6/+123
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128633 91177308-0d34-0410-b5e6-96231b3b80d8
* Reapply r128585 without generating a lib depedency cycle. An updated log:Bruno Cardoso Lopes2011-03-3110-87/+360
| | | | | | | | | | | | | - Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and {STR,LDC}{2}_{PRE,POST} fixing the encoding wherever is possible. - Move all instructions which use am2offset without a pattern to use addrmode2. - Add a new encoding bit to describe the index mode used and teach printAddrMode2Operand to check by the addressing mode which index mode to print. - Testcases git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128632 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix whitespace.Michael J. Spencer2011-03-313-24/+24
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128631 91177308-0d34-0410-b5e6-96231b3b80d8
* Switch FileRemover from PathV1 to V2.Michael J. Spencer2011-03-316-21/+30
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128630 91177308-0d34-0410-b5e6-96231b3b80d8
* lib/CodeGen/LiveIntervalAnalysis.cpp: [PR9590] Don't use ↵NAKAMURA Takumi2011-03-311-1/+3
| | | | | | | | | | std::pow(float,float) here. We don't expect the real "powf()" on some hosts (and powf() would be available on other hosts). For consistency, std::pow(double,double) may be called instead. Or, precision issue might attack us, to see unstable regalloc and stack coloring. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128629 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: Fix transform to use the swapped predicate.Benjamin Kramer2011-03-312-3/+3
| | | | | | Thanks Frits! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128628 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: fold fcmp (fneg x), (fneg y) -> fcmp x, yBenjamin Kramer2011-03-312-0/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128627 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: fold fcmp pred (fneg x), C -> fcmp swap(pred) x, -CBenjamin Kramer2011-03-312-0/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128626 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: Shrink "fcmp (fpext x), C" to "fcmp x, C" if C can be ↵Benjamin Kramer2011-03-312-0/+57
| | | | | | | | losslessly converted to the type of x. Fixes PR9592. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128625 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: fold fcmp (fpext x), (fpext y) -> fcmp x, y.Benjamin Kramer2011-03-312-0/+18
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128624 91177308-0d34-0410-b5e6-96231b3b80d8
* Will not compile without the spec!Duncan Sands2011-03-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128623 91177308-0d34-0410-b5e6-96231b3b80d8
* Strip trailing whitespace.Duncan Sands2011-03-312-14/+14
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128622 91177308-0d34-0410-b5e6-96231b3b80d8
* Testcase for r128619 (PR9571).Bill Wendling2011-03-311-0/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128620 91177308-0d34-0410-b5e6-96231b3b80d8
* Pick a conservative register class when creating a small live range for remat.Jakob Stoklund Olesen2011-03-312-1/+62
| | | | | | | | | | | | The rematerialized instruction may require a more constrained register class than the register being spilled. In the test case, the spilled register has been inflated to the DPR register class, but we are rematerializing a load of the ssub_0 sub-register which only exists for DPR_VFP2 registers. The register class is reinflated after spilling, so the conservative choice is only temporary. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128610 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "- Implement asm parsing support for LDRT, LDRBT, STRT, STRBT and"Matt Beaumont-Gay2011-03-318-319/+66
| | | | | | This revision introduced a dependency cycle, as nlewycky mentioned by email. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128597 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix typo in generated HTML.Nick Lewycky2011-03-311-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128594 91177308-0d34-0410-b5e6-96231b3b80d8
* Use intrinsics for Neon vmull operations. Radar 9208957.Bob Wilson2011-03-312-27/+17
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128591 91177308-0d34-0410-b5e6-96231b3b80d8
* Somehow we managed to forget to encode the lane index for a large swathe of ↵Owen Anderson2011-03-302-21/+70
| | | | | | NEON instructions. With this fix, the entire test-suite passes with the Thumb integrated assembler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128587 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't try to create zero-sized stack objects.Evan Cheng2011-03-303-4/+16
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128586 91177308-0d34-0410-b5e6-96231b3b80d8
* - Implement asm parsing support for LDRT, LDRBT, STRT, STRBT andBruno Cardoso Lopes2011-03-308-66/+319
| | | | | | | | | | | | | | | {STR,LDC}{2}_PRE. - Fixed the encoding in some places. - Some of those instructions were using am2offset and now use addrmode2. Codegen isn't affected, instructions which use SelectAddrMode2Offset were not touched. - Teach printAddrMode2Operand to check by the addressing mode which index mode to print. - This is a work in progress, more work to come. The idea is to change places which use am2offset to use addrmode2 instead, as to unify assembly parser. - Add testcases for assembly parser git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128585 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a ARM-specific SD node for VBSL so that forms with a constant first operandCameron Zwarich2011-03-305-9/+179
| | | | | | can be recognized. This fixes <rdar://problem/9183078>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128584 91177308-0d34-0410-b5e6-96231b3b80d8
* Tidy up. Whitespace and 80-columns.Jim Grosbach2011-03-302-26/+28
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128583 91177308-0d34-0410-b5e6-96231b3b80d8
* * The DSE code that tested for overlapping needed to take into account the factBill Wendling2011-03-302-1/+4
| | | | | | | | | | | | | that one of the numbers is signed while the other is unsigned. This could lead to a wrong result when the signed was promoted to an unsigned int. * Add the data layout line to the testcase so that it will test the appropriate thing. Patch by David Terei! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128577 91177308-0d34-0410-b5e6-96231b3b80d8
* fixed typoAkira Hatanaka2011-03-301-2/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128574 91177308-0d34-0410-b5e6-96231b3b80d8
* Don't add the same analysis implementation pair twice.Jakob Stoklund Olesen2011-03-301-0/+2
| | | | | | | | Prevent infinite growth of the list. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128568 91177308-0d34-0410-b5e6-96231b3b80d8
* Reset StringMap's NumTombstones on clears and rehashes.Jakob Stoklund Olesen2011-03-302-0/+6
| | | | | | | | | | | | | StringMap was not properly updating NumTombstones after a clear or rehash. This was not fatal until now because the table was growing faster than NumTombstones could, but with the previous change of preventing infinite growth of the table the invariant (NumItems + NumTombstones <= NumBuckets) stopped being observed, causing infinite loops in certain situations. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128567 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent infinite growth of SmallPtrSet instances.Jakob Stoklund Olesen2011-03-302-7/+10
| | | | | | | | Rehash but don't grow when full of tombstones. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128566 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent infinite growth of SmallMap instances.Jakob Stoklund Olesen2011-03-302-15/+15
| | | | | | | | Rehash but don't grow when full of tombstones. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128565 91177308-0d34-0410-b5e6-96231b3b80d8
* Prevent infinite growth of the DenseMap.Jakob Stoklund Olesen2011-03-301-2/+5
| | | | | | | | | | | | | | | | | | When the hash function uses object pointers all free entries eventually become tombstones as they are used at least once, regardless of the size. DenseMap cannot function with zero empty keys, so it double size to get get ridof the tombstones. However DenseMap never shrinks automatically unless it is cleared, so the net result is that certain tables grow infinitely. The solution is to make a fresh copy of the table without tombstones instead of doubling size, by simply calling grow with the current size. Patch by José Fonseca! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128564 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix evil VirtRegRewriter bug.Jakob Stoklund Olesen2011-03-301-0/+28
| | | | | | | | | | | | | | | The rewriter can keep track of multiple stack slots in the same register if they happen to have the same value. When an instruction modifies a stack slot by defining a register that is mapped to a stack slot, other stack slots in that register are no longer valid. This is a very rare problem, and I don't have a simple test case. I get the impression that VirtRegRewriter knows it is about to be deleted, inventing a last opaque problem. <rdar://problem/9204040> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128562 91177308-0d34-0410-b5e6-96231b3b80d8
* Teach VirtRegRewriter about the new virtual register numbers. No functional ↵Jakob Stoklund Olesen2011-03-301-10/+11
| | | | | | change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128561 91177308-0d34-0410-b5e6-96231b3b80d8
* Avoid turning a floating point division with a constant power of two into a ↵Benjamin Kramer2011-03-303-5/+11
| | | | | | | | | denormal multiplication. Some platforms may treat denormals as zero, on other platforms multiplication with a subnormal is slower than dividing by a normal. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128555 91177308-0d34-0410-b5e6-96231b3b80d8
* InstCombine: If the divisor of an fdiv has an exact inverse, turn it into an ↵Benjamin Kramer2011-03-302-0/+37
| | | | | | | | fmul. Fixes PR9587. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128546 91177308-0d34-0410-b5e6-96231b3b80d8
* Add APFloat::getExactInverse.Benjamin Kramer2011-03-303-0/+53
| | | | | | | | | | | | | | The idea is, that if an ieee 754 float is divided by a power of two, we can turn the division into a cheaper multiplication. This function sees if we can get an exact multiplicative inverse for a divisor and returns it if possible. This is the hard part of PR9587. I tested many inputs against llvm-gcc's frotend implementation of this optimization and didn't find any difference. However, floating point is the land of weird edge cases, so any review would be appreciated. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128545 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix more zero length memset warnings.Jay Foad2011-03-301-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128543 91177308-0d34-0410-b5e6-96231b3b80d8
* Add a comment on PHINode::Create().Jay Foad2011-03-301-0/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128540 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove PHINode::reserveOperandSpace(). Instead, add a parameter toJay Foad2011-03-3042-125/+91
| | | | | | PHINode::Create() giving the (known or expected) number of operands. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537 91177308-0d34-0410-b5e6-96231b3b80d8
* (Almost) always call reserveOperandSpace() on newly created PHINodes.Jay Foad2011-03-3026-21/+54
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128535 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert a minor comment change inadvertently included with r128502.Bob Wilson2011-03-301-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128526 91177308-0d34-0410-b5e6-96231b3b80d8
* Treat clones the same as their origin.Jakob Stoklund Olesen2011-03-303-6/+29
| | | | | | | | | | | | When DCE clones a live range because it separates into connected components, make sure that the clones enter the same register allocator stage as the register they were cloned from. For instance, clones may be split even when they where created during spilling. Other registers created during spilling are not candidates for splitting or even (re-)spilling. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128524 91177308-0d34-0410-b5e6-96231b3b80d8
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