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2011-12-24Add systematic testing for cttz as well, and fix the bug I spotted byChandler Carruth
inspection earlier. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147250 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Chandler fixed this.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147247 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Expand more when we have a nice 'tzcnt' instruction, to avoid generatingChandler Carruth
'bsf' instructions here. This one is actually debatable to my eyes. It's not clear that any chip implementing 'tzcnt' would have a slow 'bsf' for any reason, and unless EFLAGS or a zero input matters, 'tzcnt' is just a longer encoding. Still, this restores the old behavior with 'tzcnt' enabled for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Switch the lowering of CTLZ_ZERO_UNDEF from a .td pattern back to theChandler Carruth
X86ISelLowering C++ code. Because this is lowered via an xor wrapped around a bsr, we want the dagcombine which runs after isel lowering to have a chance to clean things up. In particular, it is very common to see code which looks like: (sizeof(x)*8 - 1) ^ __builtin_clz(x) Which is trying to compute the most significant bit of 'x'. That's actually the value computed directly by the 'bsr' instruction, but if we match it too late, we'll get completely redundant xor instructions. The more naive code for the above (subtracting rather than using an xor) still isn't handled correctly due to the dagcombine getting confused. Also, while here fix an issue spotted by inspection: we should have been expanding the zero-undef variants to the normal variants when there is an 'lzcnt' instruction. Do so, and test for this. We don't want to generate unnecessary 'bsr' instructions. These two changes fix some regressions in encoding and decoding benchmarks. However, there is still a *lot* to be improve on in this type of code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147244 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Fix Comments.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147238 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Add MachineMemOperands to instructions generated in storeRegToStackSlot orAkira Hatanaka
loadRegFromStackSlot. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Detect unaligned loads/stores that have been added for Mips64 support.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24If target ABI is N64, LEA should be daddiu.Akira Hatanaka
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147232 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Move x86 specific bits of the COFF writer to lib/Target/X86.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147231 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Define trivial destructor inline.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147230 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-24Make GetRelocType pure virtual.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147229 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23Fix typo "infinte".Nick Lewycky
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147226 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23When not destroying the source, the linker is not remapping the types. Added ↵Mon P Wang
support to CloneFunctionInto to allow remapping for this case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-23Experimental support for aligned NEON spills.Jakob Stoklund Olesen
ARM targets with NEON units have access to aligned vector loads and stores that are potentially faster than unaligned operations. Add support for spilling the callee-saved NEON registers to an aligned stack area using 16-byte aligned NEON loads and store. This feature is off by default, controlled by an -align-neon-spills command line option. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147211 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Add variants of the dispatchsetup pseudo for Thumb and !VFP. <rdar://10620138>Bob Wilson
My change r146949 added register clobbers to the eh_sjlj_dispatchsetup pseudo instruction, but on Thumb1 some of those registers cannot be used. This caused massive failures on the testsuite when compiling for Thumb1. While fixing that, I noticed that the eh_sjlj_setjmp instruction has a "nofp" variant, and I realized that dispatchsetup needs the same thing, so I have added that as well. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22TableGen: add a commentDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147199 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22try to fix MSVC buildDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147198 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22drop unneeded config.h includesDylan Noblesmith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147197 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix 80-column violations.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147192 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move all the dependencies on X86FixupKinds.h to a single method in preparationRafael Espindola
to moving it to lib/Target/X86. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147190 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22ARM VFP assembly parsing and encoding for VCVT(float <--> fixed point).Jim Grosbach
rdar://10558523 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147189 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Add missing usesCustomInserter flag on Int_eh_sjlj_setjmp_nofp.Bob Wilson
Noticed by inspection; I don't have a testcase for this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Tidy up. Use predicate function a bit more liberally.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147184 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix incorrect relocation generation. Patch by Kristof Beyls.Rafael Espindola
Fixes PR11214. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147180 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Add the actual code for r147175.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147176 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22ARM VFP add encoding of the bitcount to fixed-point<-->floating point. insns.Jim Grosbach
The value from the operands isn't right yet, but we weren't encoding it at all previously. The parser needs to twiddle the values when building the instruction. Partial for: rdar://10558523 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Remove some bogus comments.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22ARM pre-UAL aliases. fcmp[sd].Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147158 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix an incomplete refactoring of the ppc backend. Thanks to rdivacky for ↵Rafael Espindola
reporting it. It does need some some tests... git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147154 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22ARM assembler should accept shift-by-zero for any shifted-immediate operand.Jim Grosbach
Just treat it as-if the shift wasn't there at all. 'as' compatibility. rdar://10604767 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147153 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22ARM assembly parser canonicallize on 'lsl' for shift-by-zero form.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Tidy up. Trailing whitespace.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147151 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Nuke invalid comment from copy/paste.Jim Grosbach
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147150 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Give string constants generated by IRBuilder private linkage.Benjamin Kramer
Fixes PR11640. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147144 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Make the unreachable probability much much heavier. The previousChandler Carruth
probability wouldn't be considered "hot" in some weird loop structures or other compounding probability patterns. This makes it much harder to confuse, but isn't really a principled fix. I'd actually like it if we could model a zero probability, as it would make this much easier to reason about. Suggestions for how to do this better are welcome. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Kill the monstrosity that was ELFObjectWriter.h.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Misc cleanups.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix APInt::rotl and APInt::rotr so that they work correctly. Found while ↵Eli Friedman
writing some code that tried to use them. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147134 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the Mips only bits of the ELF writer to lib/Target/Mips.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147133 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Make the virtual methods in ARMELFObjectWriter public.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Speculatively revert r146578 to determine if it is the cause of a number ofChad Rosier
performance regressions (both execution-time and compile-time) on our nightly testers. Original commit message: Fix for bug #11429: Wrong behaviour for switches. Small improvement for code size heuristics. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move the MBlaze ELF writer bits to lib/Target/MBlaze.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Hoisted some loop invariant smallvector lookups out of a MachineLICM loopPete Cooper
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147127 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix cmake.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Changed MachineLICM to use a worklist list MachineCSE instead of recursion.Pete Cooper
Fixes <rdar://problem/10584116> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147125 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Move PPC bits to lib/Target/PowerPC.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Hopefully fix the cmake build.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147121 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Fix name in comments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147119 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Local dynamic TLS model for direct object output. Create the correct TLS MIPSAkira Hatanaka
ELF relocations. Patch by Jack Carter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147118 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-22Unbreak cmake build after r147115.Richard Smith
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147117 91177308-0d34-0410-b5e6-96231b3b80d8
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