Commit Graph

69804 Commits

Author SHA1 Message Date
Jakob Stoklund Olesen
45e53975f8 Apparently, it is possible for a block with a landing pad successor to have no calls.
In that case we simply ignore the landing pad and split live ranges before the
first terminator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124907 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 23:11:13 +00:00
Devang Patel
6c3ea9012e Merge .debug_loc entries whenever possible to reduce debug_loc size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124904 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 22:57:18 +00:00
Nick Lewycky
c57ef56142 Mark that the return is using EAX so that we don't use it for some other
purpose. Fixes PR9080!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124903 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 22:44:08 +00:00
Jakob Stoklund Olesen
63935420ef Be more accurate about live range splitting at the end of blocks.
If interference reaches the last split point, it is effectively live out and
should be marked as 'MustSpill'.

This can make a difference when the terminator uses a register. There is no way
that register can be reused in the outgoing CFG bundle, even if it isn't live
out.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124900 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 21:42:06 +00:00
Jason W Kim
2d7a53aec2 Teach ARM/MC/ELF about EF_ARM_EABI_VERSION. The magic number is set to
5 to match the current doc.
Added FIXME reminder Make it really configurable later.





git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124899 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 21:41:11 +00:00
Jason W Kim
685c350ae7 Teach ARM/MC/ELF to handle R_ARM_JUMP24 relocation type for conditional jumps.
(yes, this is different from R_ARM_CALL)

- Adds a new method getARMBranchTargetOpValue() which handles the
  necessary distinction between the conditional and unconditional br/bl
  needed for ARM/ELF

At least for ARM mode, the needed fixup for conditional versus unconditional
br/bl is identical, but the ARM docs and existing ARM tools expect this
reloc type...

Added a few FIXME's for future naming fixups in ARMInstrInfo.td




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124895 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 19:47:15 +00:00
Jakob Stoklund Olesen
cb6404711b Add LiveIntervals::getLastSplitPoint().
A live range cannot be split everywhere in a basic block. A split must go before
the first terminator, and if the variable is live into a landing pad, the split
must happen before the call that can throw.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124894 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 19:33:11 +00:00
Jakob Stoklund Olesen
9b3d24bf3d Verify that one of the ranges produced by region splitting is allocatable.
We should not be attempting a region split if it won't lead to at least one
directly allocatable interval. That could cause infinite splitting loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124893 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 19:33:07 +00:00
Daniel Dunbar
b412915ff6 MC/AsmParser: Add support for allowing the conversion process to fail (via
custom conversion functions).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124872 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 17:12:23 +00:00
Daniel Dunbar
5e342ecc19 build: Add MAKEFILE_UNITTEST_NO_INCLUDE_COMMON build variable, to be leveraged
by Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 17:12:18 +00:00
Daniel Dunbar
cf12067ae0 MC/AsmMatcher: Add support for custom conversion functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124870 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 17:12:15 +00:00
David Greene
c83e203757 Silence uninitialized value warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124869 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 17:01:53 +00:00
David Greene
ccacdc1952 [AVX] Support VSINSERTF128 with more patterns and appropriate
infrastructure.  This makes lowering 256-bit vectors to 128-bit
vectors simple when 256-bit vector support is not available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124868 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 16:08:29 +00:00
NAKAMURA Takumi
6d600da734 Make Win32's header file name lower for cross build on case-sensitive filesystem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124864 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 12:53:04 +00:00
Oscar Fuentes
325610bf77 LLVM_ON_WIN32 is not defined on config-ix.cmake. Use something else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124857 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 05:40:04 +00:00
Oscar Fuentes
ba6ac91995 Add the tablegenned files to the `clean' target.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124854 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 03:47:50 +00:00
Andrew Trick
92e946630d Introducing a new method of tracking register pressure. We can't
precisely track pressure on a selection DAG, but we can at least keep
it balanced. This design accounts for various interesting aspects of
selection DAGS: register and subregister copies, glued nodes, dead
nodes, unused registers, etc.

Added SUnit::NumRegDefsLeft and ScheduleDAGSDNodes::RegDefIter.

Note: I disabled PrescheduleNodesWithMultipleUses when register
pressure is enabled, based on no evidence other than I don't think it
makes sense to have both enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124853 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 03:18:17 +00:00
Devang Patel
f827cd717b DebugLoc associated with a machine instruction is used to emit location entries. DebugLoc associated with a DBG_VALUE is used to identify lexical scope of the variable. After register allocation, while inserting DBG_VALUE remember original debug location for the first instruction and reuse it, otherwise dwarf writer may be mislead in identifying the variable's scope.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124845 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 01:43:25 +00:00
Evan Cheng
c8b90e22a8 Update comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124843 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 01:10:12 +00:00
Jakob Stoklund Olesen
9ecd1e7197 Skip unused values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124842 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 00:59:23 +00:00
Jakob Stoklund Olesen
45139874a7 Also compute interference intervals for blocks with no uses.
When the live range is live through a block that doesn't use the register, but
that has interference, region splitting wants to split at the top and bottom of
the basic block.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 00:39:20 +00:00
Jakob Stoklund Olesen
a7b586ba74 Verify kill flags conservatively.
Allow a live range to end with a kill flag, but don't allow a kill flag that
doesn't end the live range.

This makes the machine code verifier more useful during register allocation when
kill flag computation is deferred.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124838 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-04 00:39:18 +00:00
Jim Grosbach
0ed92f2de3 Tidy up a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:26:36 +00:00
Bob Wilson
720b918eeb Do not sign extend floating-point values in the asm parser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124831 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:17:47 +00:00
Bob Wilson
c67b1a3a76 Remove trailing whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:17:44 +00:00
Bob Wilson
b84fe78d34 Edit a comment for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:17:40 +00:00
Andrew Trick
cd5af07c45 whitespace
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 23:00:17 +00:00
Benjamin Kramer
042b27f40e SimplifyCFG: Also transform switches that represent a range comparison but are not sorted into sub+icmp.
This transforms another 1000 switches in gcc.c.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124826 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 22:51:41 +00:00
Oscar Fuentes
d931dca6e5 Moved to Clang's source tree its configuration options and associated
macros.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124824 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 22:47:59 +00:00
Rafael Espindola
0ecd296421 Factor the computation of the basename of libraries. This avoids renaming
them on install. Before we would have LLVMgold.so on the build directory but
libLLVMgold.so on the install dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 22:01:15 +00:00
Bob Wilson
69df72367f Fix 80-column violations and whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124819 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 21:46:10 +00:00
Oscar Fuentes
d538e24922 Changes for building Clang and others using LLVM as an external
library.

Installs tblgen (required by Clang).

Translates handling of user settings and platform-dependant options to
its own file, where it can included by another project.

Installs the .cmake files required by projects like Clang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124816 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 20:57:36 +00:00
Jakob Stoklund Olesen
2dfbb3e912 Ensure that the computed interference intervals actually overlap their basic blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124815 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 20:29:43 +00:00
Jakob Stoklund Olesen
97af98678c Tweak debug output from SlotIndexes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124814 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 20:29:41 +00:00
Jakob Stoklund Olesen
c50f077b06 Add debug output and asserts to the phi-connecting code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124813 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 20:29:39 +00:00
Jakob Stoklund Olesen
08eb8dd616 Fix coloring bug when mapping values in the middle of a live-through block.
If the found value is not live-through the block, we should only add liveness up
to the requested slot index. When the value is live-through, the whole block
should be colored.

Bug found by SSA verification in the machine code verifier.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124812 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 20:29:36 +00:00
Jakob Stoklund Olesen
207c868c92 Return live range end points from SplitEditor::enter*/leave*.
These end points come from the inserted copies, and can be passed directly to
useIntv. This simplifies the coloring code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124799 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 17:04:16 +00:00
Jakob Stoklund Olesen
9590c7fbca Silence an MSVC warning
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124798 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 17:04:12 +00:00
David Greene
c38a03eeca [AVX] VEXTRACTF128 support. This commit includes patterns for
matching EXTRACT_SUBVECTOR to VEXTRACTF128 along with support routines
to examine and translate index values.  VINSERTF128 comes next.  With
these two in place we can begin supporting more AVX operations as
INSERT/EXTRACT can be used as a fallback when 256-bit support is not
available.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124797 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 15:50:00 +00:00
Richard Osborne
17c1e51d22 Add XCore intrinsics for resource instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124794 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 13:14:25 +00:00
NAKAMURA Takumi
76422f3e08 cmake/*: Add svn:eol-style=native and fix CRLF.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 11:41:27 +00:00
Duncan Sands
50ca4d37f7 Improve threading of comparisons over select instructions (spotted by my
auto-simplifier).  This has a big impact on Ada code, but not much else.
Unfortunately the impact is mostly negative!  This is due to PR9004 (aka
SCCP failing to resolve conditional branch conditions in the destination
blocks of the branch), in which simple correlated expressions are not
resolved but complicated ones are, so simplifying has a bad effect!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124788 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 09:37:39 +00:00
Duncan Sands
ee64684710 Part of this test is invariant inside the inner loop - move it outside
the loop.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 08:14:04 +00:00
NAKAMURA Takumi
ee0056d866 test/Makefile: "check-all" should update tools/clang/test/Unit/lit.site.cfg, too. Follow up to clang r124777.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124783 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 07:36:02 +00:00
Eric Christopher
0f43811903 Reapply this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 06:18:29 +00:00
Eric Christopher
463a2977b1 Temporarily revert 124765 in an attempt to find the cycle breaking bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124778 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 05:40:54 +00:00
Oscar Fuentes
254f35ca4a Platform tests for sys/uio.h' header and writev' function.
This is the cmake equivalent for r124769.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124775 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 04:23:07 +00:00
Rafael Espindola
855ff183b9 Add -march to fix the bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124774 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 04:21:01 +00:00
Rafael Espindola
f297c93191 Fix PR9127 by reversing the operands even if they have more then one use.
Reversing the operands allows us to fold, but doesn't force us to. Also, at
this point the DAG is still being optimized, so the check for hasOneUse is not
very precise.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124773 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 03:58:05 +00:00
Daniel Dunbar
b0cfa6cab8 raw_fd_ostream: Add a SetUseAtomicWrites() method (uses writev).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124771 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-03 03:32:32 +00:00