Commit Graph

72976 Commits

Author SHA1 Message Date
Rafael Espindola
c1e903ceb3 Test for the previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12 05:35:39 +00:00
Rafael Espindola
571e20fc50 Fix silly bug I introduce in the previous commit. Fixes debug builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-12 05:26:32 +00:00
Rafael Espindola
4509ec42b8 AnalyzeBranch doesn't change which successors a bb has, just the order
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
2011-06-12 03:20:32 +00:00
Jakob Stoklund Olesen
026dc223ae Compute lists of sub-regs, super-regs, and overlapping regs.
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
2011-06-12 03:05:52 +00:00
Charles Davis
aff232a594 Put FrameSetup flag on x86 instructions that set up the call frame. No
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
2011-06-12 01:45:54 +00:00
Bill Wendling
3bdc190d33 Reformatting. Moving class definitions to more natural places. No functionalogical changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132876 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11 11:37:49 +00:00
Chad Rosier
8c1ec5a0a2 Revert r132871.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132872 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11 02:27:46 +00:00
Chad Rosier
e4c705667b Typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-11 02:16:36 +00:00
Eli Friedman
8a37aba693 Make sure to pass OpFlags into MachineInstrBuilder::addExternalSymbol; the
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
2011-06-11 01:55:07 +00:00
Andrew Trick
f289df2d95 Branch profiling: floating-point avoidance.
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
2011-06-11 01:05:22 +00:00
Jakob Stoklund Olesen
b5923db192 Move the list of registers into CodeGenRegBank.
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
2011-06-11 00:28:06 +00:00
Eli Friedman
25255cbe00 Add full x86 fast-isel support for memcpy and memset.
rdar://9431466



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 23:39:36 +00:00
Eric Christopher
b3e009a165 80-col cleanups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132863 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 23:05:08 +00:00
Dan Gohman
9a09ca348f Initialize BasicAA's AliasCache to set it to use fewer buckets by
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
2011-06-10 22:30:30 +00:00
Bill Wendling
a1f21e69c4 Install libprofile_rt.dylib where it's more available for gcov support.
<rdar://problem/9583891>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132860 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 21:47:14 +00:00
Rafael Espindola
33b4658772 Removed tabs. Also fixed my editor...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 21:01:53 +00:00
Cameron Zwarich
a86686e643 Provide an ARMCCState subclass of CCState so that ARM clients will always set
CallOrPrologue correctly and eliminate the existing setter.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132856 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 20:59:24 +00:00
Cameron Zwarich
a50760f43b Rename the ParmContext enum values to make a bit more sense and add a small
comment on their meaning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 20:37:36 +00:00
Cameron Zwarich
a0f803a2e3 Remove tabs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 20:31:39 +00:00
Cameron Zwarich
cbd09bdf4b Remove a pointless const_cast.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 20:30:08 +00:00
Rafael Espindola
9a9a3a5c0f Remove duplicated test.
Thanks Bob Wilson for noticing it!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 20:08:23 +00:00
Jakob Stoklund Olesen
dc29c44713 Move some sub-register index calculations to CodeGenRegisters.cpp
Create a new CodeGenRegBank class that will eventually hold all the code
that computes the register structure from Records.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 18:40:00 +00:00
Richard Osborne
c610017269 Fix example code in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132844 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 12:28:24 +00:00
Eli Friedman
5e05deebb9 Add -mattr=+sse2 to make the buildbots happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 08:26:26 +00:00
Galina Kistanova
993200d8b2 Reverted r132785. It seems this test needs more research.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132836 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 05:35:25 +00:00
Galina Kistanova
0d6d34cd50 Changed condition.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132834 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 03:57:02 +00:00
Chad Rosier
86431e9a31 Adding a test case for revision 132825.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 02:44:19 +00:00
Eli Friedman
be5cbaa627 PR10092 (second try): Don't crash on a load without a momoperand; fast-isel creates loads like this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 01:13:01 +00:00
Chad Rosier
348d542199 Ensure that EmitGlobalVariable is correctly differentiating between declarations
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
2011-06-10 00:53:15 +00:00
Eli Friedman
88b2af7e61 Add a simple test which makes sure folding immediate float zero to a memory operand works.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132824 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-10 00:30:08 +00:00
Rafael Espindola
d3f4eeaec1 Make the optional verification step more strict.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132822 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 23:55:56 +00:00
Rafael Espindola
4d7b4573f9 Avoid a gcc warning about multiline comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 23:51:45 +00:00
Rafael Espindola
689d7d5dff On last fix to the early tail duplication.
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
2011-06-09 23:22:56 +00:00
Eli Friedman
6ad0468149 Chris fixed this README a while back by changing how clang generates code for structs like the given struct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132815 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 23:02:19 +00:00
Rafael Espindola
0f28c3f0c3 Also consider phi nodes when deciding if a register is live out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132814 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 22:53:47 +00:00
Cameron Zwarich
a2e979565b A CCState was being created without setting whether it is in the Call or Prologue state,
causing an assertion failure downstream. This fixes <rdar://problem/9562908>.

This really seems like it should always be set at CCState creation time, so mistakes like
this can never happen. I'll take a look at doing that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132811 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 22:30:07 +00:00
Eli Friedman
2a6d9eb10b Change this DAGCombine to build AND of SHR instead of SHR of AND; this 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
2011-06-09 22:14:44 +00:00
Rafael Espindola
a899b22310 AnalyzeBranch modifies the bb, but we don't want to modify a bb with
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
2011-06-09 21:43:25 +00:00
Rafael Espindola
c2e9a50dfb A PHI in this basic block is a use in another basic block.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132805 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 20:55:41 +00:00
John McCall
ca5bec22e0 When deleting a basic block, remove call edges only for non-intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 20:31:09 +00:00
Roman Divacky
a1000742d2 Fix emission of PPC64 assembler on non-darwin platforms by splitting
VK_PPC_{HA,LO}16 into darwin and gas variants.

Darwin wants {ha,lo}16(symbol) while gnu as wants symbol@{ha,l}.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132802 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 20:25:38 +00:00
Johnny Chen
e5dfa8f697 Modify comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132800 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 20:11:46 +00:00
John McCall
1dd94bbfa1 SplitCriticalEdge can sometimes split the edge from an invoke to a landing
pad, separating the exception and selector calls from the new lpad.  Teaching
it not to do that, or to properly adjust the CFG afterwards, is out of
scope because it would require the other edges to the landing pad to be split
as well (effectively).  Instead, just recover from the most likely cases
during inlining.  The best long-term solution is to change the exception
representation and commit to either requiring or not requiring the more
complex edge-splitting logic;  this is just a shorter-term hack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132799 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 20:06:24 +00:00
Rafael Espindola
54c256233f Refactor some checks into shouldTailDuplicate. Update comments.
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132798 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 19:54:42 +00:00
John McCall
e669d83a21 Teach the CallGraph to ignore calls to intrinsics.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132797 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 19:46:27 +00:00
Eli Friedman
6f19c67d84 Revert 132789; it breaks tests. My mistake.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 19:33:30 +00:00
Jason W Kim
bebd44a95a Remove an uneeded switch - Turns out reloc results are identical w/o the switch. (face+palm)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132790 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 19:13:45 +00:00
Eli Friedman
aebc3c1610 Add a check to make sure we don't crash with strange configurations where we do fast-isel, then try to fold instructions. PR10092.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132789 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 18:55:00 +00:00
Jakob Stoklund Olesen
f1e2b23dfa Move TableGen's register bank classes to their own source file.
I'll be moving some more code there to gather all of the
register-specific stuff in one place. Currently it is shared between
CodeGenTarget and RegisterInfoEmitter.

The plan is that CodeGenRegisters can compute the full register bank
structure while RegisterInfoEmitter only will handle the printing part.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132788 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 18:42:07 +00:00
Galina Kistanova
372ab67ee8 Added dg.exp to run FrontendC ARM-dependent tests; updated inline-asm-multichar.c test per this change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-09 17:18:37 +00:00