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2011-06-15getZeroExtendInReg needs to get a scalar typeNadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133057 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-15Enable the simplification of truncating-store after fixing the usage ofNadav Rotem
GetDemandBits (which must operate on the vector element type). Fix the a usage of getZeroExtendInReg which must also be done on scalar types. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133052 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14When pattern matching during instruction selection make sure shl x,1 is notChad Rosier
converted to add x,x if x is a undef. add undef, undef does not guarantee that the resulting low order bit is zero. Fixes <rdar://problem/9453156> and <rdar://problem/9487392>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133022 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Revert r133004 ; it's breaking nightly tests.Eli Friedman
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Partial revert of 132882.Rafael Espindola
Dan noted that this would work on the case shown on the commit message. I think the case that was failing was a bb ending with a redundant conditional jump: ... jne foo foo: ... I was unable to find any such case in the tests or in a debug build of clang, so I will revert this part of the patch and watch the bots. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133004 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add 132986 back, but avoid non-determinism if a bb address gets reused.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132995 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14revert 132986 to see if the bots go green.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add a testcase for checking the integer-promotion of many different vectorNadav Rotem
types (with power of two types such as 8,16,32 .. 512). Fix a bug in the integer promotion of bitcast nodes. Enable integer expanding only if the target of the conversion is an integer (when the type action is scalarize). Add handling to the legalization of vector load/store in cases where the saved vector is integer-promoted. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132985 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Disable trunc-store simplification on vectors.Nadav Rotem
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Implement Jakob's suggestion on how to detect fall thought without callingRafael Espindola
AnalyzeBranch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132981 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Add one more argument to the prefetch intrinsic to indicate whether it's a dataBruno Cardoso Lopes
or instruction cache access. Update the targets to match it and also teach autoupgrade. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132976 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-14Make the threshold used by branch folding softer. Before we would get aRafael Espindola
sharp all or nothing transition when one extra predecessor was added. Now we still test first ones for merging. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132974 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
2011-06-13Be 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
2011-06-12Fix 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
2011-06-12Really 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
2011-06-12Fix 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
2011-06-11Revert 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
2011-06-1080-col cleanups.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132863 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
2011-06-10Rename 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
2011-06-10Remove tabs.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Remove a pointless const_cast.Cameron Zwarich
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Remove duplicated test.Rafael Espindola
Thanks Bob Wilson for noticing it! git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10Ensure that EmitGlobalVariable is correctly differentiating between declarationsChad Rosier
and definitions when emitting global variables. This was causing global declarations to be emitted as if they were definitions. Fixes <rdar://problem/9429892>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132825 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Make the optional verification step more strict.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132822 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Avoid a gcc warning about multiline comments.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09On last fix to the early tail duplication.Rafael Espindola
With this I am able to bootstrap clang with early tail duplication enabled for any small bb and setting tail-dup-size to a relatively large value(8) to stress this code. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Also consider phi nodes when deciding if a register is live out.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132814 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Change this DAGCombine to build AND of SHR instead of SHR of AND; this ↵Eli Friedman
matches the ordering we prefer in instcombine. Part of rdar://9562809. The potential DAGCombine which enforces this more generally messes up some other very fragile patterns, so I'm leaving that alone, at least for now. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09AnalyzeBranch modifies the bb, but we don't want to modify a bb withRafael Espindola
eh edges. Swap the order of the checks to avoid it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132806 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09A PHI in this basic block is a use in another basic block.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Refactor some checks into shouldTailDuplicate. Update comments.Rafael Espindola
No functionality change. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132798 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Recommit r132764 since it didn't cause the windows buildbot failures.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132776 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09Temporarily revert 132764 to see if it fixes the Windows buildbot.Eric Christopher
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09If the alignment of the byval argument is greater than the alignmentEric Christopher
of the frame then increase the maximum alignment of the frame to match. Fixes PR6965 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132764 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Add a parameter to CCState so that it can access the MachineFunction.Eric Christopher
No functional change. Part of PR6965 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Remove a temporary test case probe in CheckForLiveRegDef.Andrew Trick
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132751 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Fix count.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132749 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-08Count how many phis we are creating.Rafael Espindola
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132748 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07Fix an issue where the two-address conversion pass incorrectly rewrites untiedCameron Zwarich
operands to an early clobber register. This fixes <rdar://problem/9566076>. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132738 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07Fix a silly error I introduce in r131951.Rafael Espindola
Fixes PR10095. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132735 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-07Fix a merge bug in preRAsched for handling physreg aliases.Andrew Trick
I've been sitting on this long enough trying to find a test case. I think the fix should go in now, but I'll keep working on the test case. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132701 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-06Simplify local live range splitting's safeguard to fix PR10070.Jakob Stoklund Olesen
When local live range splitting creates a live range with the same number of instructions as the old range, mark it as RS_Local. When such a range is seen again, require that it be split in a way that reduces the number of instructions. That guarantees we are making progress while still being able to perform 3 -> 2+3 splits as required by PR10070. This also means that the PrevSlot map is no longer needed. This was also used to estimate new spill weights, but that is no longer necessary after slotIndexes::insertMachineInstrInMaps() got the extra Late insertion argument. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132697 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-06Get allocation orders from RegisterClassInfo when possible.Jakob Stoklund Olesen
Only target-dependent hints require callbacks. The RCI allocation order has CSR aliases last according to their order of appearance in the getCalleeSavedRegs list. This can depend on the calling convention. This way, AllocationOrder::next doesn't have to check for reserved registers, and CSRs are always allocated last, even with weird calling conventions. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132690 91177308-0d34-0410-b5e6-96231b3b80d8
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