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2011-06-13Remove a vacuous check.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132938 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Have SRoA explicitly track the kind of scalar it is promoting. This is prettyCameron Zwarich
spartan right now, but I plan to encode more information in this enum to improve the correctness and reliability of SRoA. At least this first pass makes it possible to make VectorTy an actual VectorType. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Remove an argument that is always true.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132936 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Fix coordination for using R4 in Thumb1 as a scratch for SP restore.Jim Grosbach
The logic for reserving R4 for use as a scratch needs to match that for actually using it. Also, it's not necessary for immediate <=508, so adjust the value checked. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132934 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Aliased flag options should be directed to stdout, not stderr to be ↵Evan Cheng
consistent. Patch by Julien Lerouge. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132931 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Add compatibility version when compiling the Apple way.Bill Wendling
<rdar://problem/9600408> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132929 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Avoid fusing bitcasts with dynamic allocas if the amount-to-allocateStuart Hastings
might overflow. Re-typing the alloca to a larger type (e.g. double) hoists a shift into the alloca, potentially exposing overflow in the expression. rdar://problem/9265821 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132926 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Move class into an anonymous namespace.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Fix a bug in FindMemType. When widening vector loads, use a wider memory typeNadav Rotem
only if the number of packed elements is a power of two. Bug found in Duncan's testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132923 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13mention graph vis isn't available in Release builds.Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132916 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13InstCombine: Fold A-b == C --> b == A-C if A and C are constants.Benjamin Kramer
The backend already knew this trick. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132915 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Revert r132910 and r132909 on behalf of Michael. They didn't build with clang.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132914 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Revert the last two commits in the series. r132911, r132912.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132913 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Modify llvm-nm to use new Binary creation method.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132912 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Make Binary the parent of ObjectFile and update children to new interface.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132911 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Add Binary class. This is a cleaner parent than ObjectFile.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Add Object/Error.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132909 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Fix spelling and sort CMakeLists.txt.Michael J. Spencer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132908 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13It's possible that an all-zero GEP may be used as the argument to lifetimeNick Lewycky
intrinsics. In fact, we'll optimize a bitcast to that when possible. Detect it when looking for the lifetime intrinsics. No test case, noticed by inspection. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132906 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Be less aggressive about hinting in RAFast.Jakob Stoklund Olesen
In particular, don't spill dirty registers only to satisfy a hint. It is not worth it. The attached test case provides an example where the fast allocator would spill a register when other registers are available. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132900 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Include callee-saved registers in debug output.Jakob Stoklund Olesen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132899 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-13Fix invalid uses of Twine. Hopefully this fixes the problem that Takumi isRafael Espindola
having. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132898 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12InstCombine: Shrink ((zext X) & C1) == C2 to fold away the cast if the ↵Benjamin Kramer
"zext" and the "and" have one use. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132897 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Simplify code. No functionality changes, name changes aside.Benjamin Kramer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132896 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Happy new year.Benjamin Kramer
Only 163 days late! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Fix a bug in the calculation of the vectorTypeBreakdown into registers. OddNadav Rotem
types such as i33 were rounded to i32. Originated from Duncan's testcase. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Improve the generated code by getCopyFromPartsVector for promoted integer types.Nadav Rotem
Instead of scalarizing, and doing an element-by-element truncat, use vector truncate. Add support for scalarization of vectors: i8 -> <1 x i1> (from Duncan's testcase). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132892 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Bugfix: When looking for a legal vector type, stop looking when a non-simpleNadav Rotem
element type is found. This fix addresses some of the tests in Duncan's testcase (forthcoming). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132891 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Tweak hash function and compress hash tables.Jakob Stoklund Olesen
Make the hash tables as small as possible while ensuring that all lookups can be done in less than 8 probes. Cut the aliases hash table in half by only storing a < b pairs - it is a symmetric relation. Use larger multipliers on the initial hash function to ensure that it properly covers the whole table, and to resolve some clustering in the very regular ARM register bank. This reduces the size of most of these tables by 4x - 8x. For instance, the ARM tables shrink from 48 KB to 8 KB. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132888 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Remove now dead code.Jakob Stoklund Olesen
These computations have been moved to CodeGenRegisters.cpp. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132887 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Extract the generateHashTable function.Jakob Stoklund Olesen
The constant hash tables for sub-registers and overlaps are generated the same way, so extract a function to generate and print the hash table. Also use the information computed by CodeGenRegisters.cpp instead of the locally data. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132886 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Really fix the fall-through logic.Rafael Espindola
Add a triple to the tests. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132885 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Test for the previous commit.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Fix silly bug I introduce in the previous commit. Fixes debug builds.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12AnalyzeBranch doesn't change which successors a bb has, just the orderRafael Espindola
we try to branch to them. Before we were creating successor lists with duplicated entries. Fixing that found a bug in isBlockOnlyReachableByFallthrough that would causes it to return the wrong answer for ----------- ... jne foo jmp bar foo: ---------- git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132882 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Compute lists of sub-regs, super-regs, and overlapping regs.Jakob Stoklund Olesen
Besides moving structural computations to CodeGenRegisters.cpp, this also well-defines the order of these lists: - Sub-register lists come from a pre-order traversal of the graph defined by the SubRegs lists in the .td files. - Super-register lists are topologically ordered so no register comes before any of its sub-registers. When the sub-register graph is not a tree, independent super-registers appear in numerical order. - Lists of overlapping registers are ordered according to register number. This reverses the order of the super-regs lists, but nobody was depending on that. The previous order of the overlaps lists was odd, and it may have depended on the precise behavior of std::stable_sort. The old computations are still there, but will be removed shortly. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132881 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12Put FrameSetup flag on x86 instructions that set up the call frame. NoCharles Davis
functionality change. Later on, we'll use the flag to emit SEH pseudo-ops that describe how the call frame was built. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132880 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Reformatting. Moving class definitions to more natural places. No ↵Bill Wendling
functionalogical changes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Revert r132871.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132872 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Typo.Chad Rosier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Make sure to pass OpFlags into MachineInstrBuilder::addExternalSymbol; theEli Friedman
memcpy/memset symbol doesn't get marked up correctly in PIC modes otherwise. Should fix llvm-x86_64-linux-checks buildbot. Followup to r132864. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Branch profiling: floating-point avoidance.Andrew Trick
Patch by: Jakub Staszak! Introduces BranchProbability. Changes unsigned to uint32_t all over and uint64_t only when overflow is expected. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132867 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11Move the list of registers into CodeGenRegBank.Jakob Stoklund Olesen
Also move the sub-register index computations from RegisterInfoEmitter into CodeGenRegBank. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132865 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Add full x86 fast-isel support for memcpy and memset.Eli Friedman
rdar://9431466 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-1080-col cleanups.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132863 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Initialize BasicAA's AliasCache to set it to use fewer buckets byDan Gohman
default, since it usually has very few elements. This speeds up alias queries in many cases, because AliasCache.clear() doesn't have to visit as many buckets. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132862 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Install libprofile_rt.dylib where it's more available for gcov support.Bill Wendling
<rdar://problem/9583891> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Removed tabs. Also fixed my editor...Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Provide an ARMCCState subclass of CCState so that ARM clients will always setCameron Zwarich
CallOrPrologue correctly and eliminate the existing setter. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Rename the ParmContext enum values to make a bit more sense and add a smallCameron Zwarich
comment on their meaning. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132854 91177308-0d34-0410-b5e6-96231b3b80d8
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