Oscar Fuentes [Wed, 23 Mar 2011 17:42:13 +0000 (17:42 +0000)]
Supports building with a list of targets that does not contain
X86. Fixes PR9533.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128154
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Justin Holewinski [Wed, 23 Mar 2011 16:58:51 +0000 (16:58 +0000)]
PTX: Improve support for 64-bit addressing
- Fix bug in ADDRrr/ADDRri/ADDRii selection for 64-bit addresses
- Add comparison selection for i64
- Add zext selection for i32 -> i64
- Add shl/shr/sha support for i64
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128153
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Anders Carlsson [Wed, 23 Mar 2011 15:51:12 +0000 (15:51 +0000)]
Revert r128140 for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128149
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Cameron Zwarich [Wed, 23 Mar 2011 05:25:55 +0000 (05:25 +0000)]
Fix PR9464 by correcting some math that just happened to be right in most cases
that were hit in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128146
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Jakob Stoklund Olesen [Wed, 23 Mar 2011 04:43:16 +0000 (04:43 +0000)]
Notify the delegate before removing dead values from a live interval.
The register allocator needs to know when the range shrinks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128145
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Jakob Stoklund Olesen [Wed, 23 Mar 2011 04:32:51 +0000 (04:32 +0000)]
Allow the allocation of empty live ranges that have uses.
Empty ranges may represent undef values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128144
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Jakob Stoklund Olesen [Wed, 23 Mar 2011 04:32:49 +0000 (04:32 +0000)]
Dump the register map before rewriting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128143
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Anders Carlsson [Wed, 23 Mar 2011 02:19:48 +0000 (02:19 +0000)]
A global variable with internal linkage where all uses are in one function and whose address is never taken is a non-escaping local object and can't alias anything else.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128140
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Andrew Trick [Wed, 23 Mar 2011 01:38:28 +0000 (01:38 +0000)]
Added block number and name to isel debug output.
I'm tired of doing this manually for each checkout.
If anyone knows a better way debug isel for non-trivial tests feel
free to revert and let me know how to do it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128132
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Douglas Gregor [Wed, 23 Mar 2011 01:05:46 +0000 (01:05 +0000)]
Update the Clang attribute emitter to handle attributes of 'version'
kind, and fix serialization/deserialization of IdentifierInfo
attributes. These are requires for the new 'availability' attribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128130
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Johnny Chen [Tue, 22 Mar 2011 23:49:46 +0000 (23:49 +0000)]
For ARM Disassembler, start a newline to dump the opcode and friends for an instruction.
Change inspired by llvm-bug 9530 submitted by Jyun-Yan You.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128122
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Johnny Chen [Tue, 22 Mar 2011 23:08:56 +0000 (23:08 +0000)]
Add disassembly test cases for:
A8.6.292 VCMPE
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128120
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Devang Patel [Tue, 22 Mar 2011 23:07:03 +0000 (23:07 +0000)]
Remove the test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128119
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Owen Anderson [Tue, 22 Mar 2011 22:52:54 +0000 (22:52 +0000)]
RIT_ARM_ThumbBranch32Bit relocations are not used and should never be generated.
This fixes kimwitu++, bullet, and tramp3dv4 with the ARM integrated assembler.
Fixes <rdar://problem/
9165738>.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128117
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Jakob Stoklund Olesen [Tue, 22 Mar 2011 22:33:08 +0000 (22:33 +0000)]
Reapply r128045 and r128051 with fixes.
This will extend the ranges of debug info variables in registers until they are
clobbered.
Fix 1: Don't mistake DBG_VALUE instructions referring to incoming arguments on
the stack with DBG_VALUE instructions referring to variables in the frame
pointer. This fixes the gdb test-suite failure.
Fix 2: Don't trace through copies to physical registers setting up call
arguments. These registers are call clobbered, and the source register is more
likely to be a callee-saved register that can be extended through the call
instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128114
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Johnny Chen [Tue, 22 Mar 2011 22:28:49 +0000 (22:28 +0000)]
LDRT and LDRBT was incorrectly tagged as IndexModeNone during the refactorings (r119821).
We now tag them as IndexModePost.
This fixed http://llvm.org/bugs/show_bug.cgi?id=9530.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128113
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Devang Patel [Tue, 22 Mar 2011 22:13:17 +0000 (22:13 +0000)]
Try to appease buildbot gods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128112
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Rafael Espindola [Tue, 22 Mar 2011 20:57:13 +0000 (20:57 +0000)]
Add a lto_codegen_compile_to_file to avoid producing a file, reading it to
memory and writing it back to disk.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128108
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Eli Friedman [Tue, 22 Mar 2011 20:49:53 +0000 (20:49 +0000)]
A bit more analysis of a memset-related README entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128107
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Johnny Chen [Tue, 22 Mar 2011 20:21:08 +0000 (20:21 +0000)]
Add one more test case for VFP Load/Store Multiple (vpop).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128106
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Johnny Chen [Tue, 22 Mar 2011 20:00:10 +0000 (20:00 +0000)]
A8.6.399 VSTM:
VFP Load/Store Multiple Instructions used to embed the IA/DB addressing mode within the
MC instruction; that has been changed so that now, for example, VSTMDDB_UPD and VSTMDIA_UPD
are two instructions. Update the ARMDisassemblerCore.cpp's DisassembleVFPLdStMulFrm()
to reflect the change.
Also add a test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128103
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Eric Christopher [Tue, 22 Mar 2011 19:39:17 +0000 (19:39 +0000)]
Migrate the fix in r128041 to ARM's fastisel support as well.
Fixes rdar://
9169640
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128100
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Rafael Espindola [Tue, 22 Mar 2011 19:20:47 +0000 (19:20 +0000)]
We don't need a null terminator for the output file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128098
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Andrew Trick [Tue, 22 Mar 2011 19:18:42 +0000 (19:18 +0000)]
Revert r128045 and r128051, debug info enhancements.
Temporarily reverting these to see if we can get llvm-objdump to link. Hopefully this is not the problem.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128097
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Jim Grosbach [Tue, 22 Mar 2011 18:22:27 +0000 (18:22 +0000)]
Tidy up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128096
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Jim Grosbach [Tue, 22 Mar 2011 18:21:14 +0000 (18:21 +0000)]
Add missing file from previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128095
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Jim Grosbach [Tue, 22 Mar 2011 18:19:42 +0000 (18:19 +0000)]
Propogate the error message, not just the error state.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128094
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Jim Grosbach [Tue, 22 Mar 2011 18:05:27 +0000 (18:05 +0000)]
Add simple arg passing to MC-JIT and support for exit() call.
Support argument passing simple, common, prototypes directly. More
complicated scenarios will require building up a stub function, which the
MC-JIT isn't set up to handle yet.
Add Intercept.cpp, which is just a copy from ExecutionEngine/JIT for now,
to handle looking looking up external symbol names. This probably more
properly belongs as part of RuntimeDyld. It'll migrate there as things
flesh out more fully.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128090
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Jim Grosbach [Tue, 22 Mar 2011 15:21:58 +0000 (15:21 +0000)]
Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128086
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Bruno Cardoso Lopes [Tue, 22 Mar 2011 15:06:24 +0000 (15:06 +0000)]
Change MRC and MRC2 instructions to model the output register properly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128085
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Che-Liang Chiou [Tue, 22 Mar 2011 14:12:00 +0000 (14:12 +0000)]
ptx: add analyze/insert/remove branch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128084
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Eric Christopher [Tue, 22 Mar 2011 08:49:56 +0000 (08:49 +0000)]
Fix comment in header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128077
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Ted Kremenek [Tue, 22 Mar 2011 04:33:13 +0000 (04:33 +0000)]
Properly initialize all fields in CrashReporterCleanupContext. This caused the buildbot failure earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128071
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Oscar Fuentes [Tue, 22 Mar 2011 03:58:55 +0000 (03:58 +0000)]
Updated library dependencies.
Now we can remove RuntimeDyld from the LLVM_LINK_COMPONENTS of
tools/lli. CMakeLists.txt LLVM_LINK_COMPONENTS shall not differ from
its companion Makefile LINK_COMPONENTS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128069
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Anders Carlsson [Tue, 22 Mar 2011 03:21:01 +0000 (03:21 +0000)]
Handle another case that Frits suggested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128068
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Jim Grosbach [Tue, 22 Mar 2011 03:10:14 +0000 (03:10 +0000)]
Update link components.
Also perform the required dark rituals and sacrifices to placate the buildbot
spirits. We shall see if they are appeased...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128067
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Ted Kremenek [Tue, 22 Mar 2011 02:06:32 +0000 (02:06 +0000)]
Temporarily stop recovering resources in CrashRecoveryContext while I investigate further why this works on my machine and not on others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128065
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Ted Kremenek [Tue, 22 Mar 2011 01:15:10 +0000 (01:15 +0000)]
Rework CrashRecoveryContextCleanup to provide a simpler way to create cleanup objects, and provide a new cleanup for
decrementing reference counts of objects with intrusive reference counts.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128055
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Ted Kremenek [Tue, 22 Mar 2011 01:15:07 +0000 (01:15 +0000)]
Relax access control on 'Release' method of RefCountedBase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128054
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Jim Grosbach [Tue, 22 Mar 2011 01:06:42 +0000 (01:06 +0000)]
Hook up the MCJIT to the RuntimeDyld library.
Lots of cleanup to make the interfaces prettier, use the JITMemoryManager,
handle multiple functions and modules, etc.. This gets far enough that
the MCJIT compiles and runs code, though.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128052
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Jakob Stoklund Olesen [Tue, 22 Mar 2011 01:03:24 +0000 (01:03 +0000)]
Clear map after use.
This is likely to fix the segfault in llvm-gcc-x86_64-darwin10-cross-mingw32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128051
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Jim Grosbach [Tue, 22 Mar 2011 00:42:19 +0000 (00:42 +0000)]
Initialize HasError.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128049
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Matt Beaumont-Gay [Tue, 22 Mar 2011 00:37:28 +0000 (00:37 +0000)]
Avoid -Wunused-variable in -asserts builds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128048
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Jakob Stoklund Olesen [Tue, 22 Mar 2011 00:21:41 +0000 (00:21 +0000)]
Dont emit 'DBG_VALUE %noreg, ...' to terminate user variable ranges.
These ranges get completely jumbled by the post-ra scheduler, and it is not
really reasonable to expect it to make sense of them.
Instead, teach DwarfDebug to notice when user variables in registers are
clobbered, and terminate the ranges there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128045
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Dan Gohman [Tue, 22 Mar 2011 00:04:35 +0000 (00:04 +0000)]
Fix fast-isel address mode folding to avoid folding instructions
outside of the current basic block. This fixes PR9500, rdar://
9156159.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128041
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Owen Anderson [Mon, 21 Mar 2011 23:13:43 +0000 (23:13 +0000)]
Add support for Thumb interworking addresses for symbol offsets that get constant folded very early.
This fixes SPASS with -integrated-as. <rdar://problem/
9165399>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128037
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Devang Patel [Mon, 21 Mar 2011 23:11:08 +0000 (23:11 +0000)]
Try again to make this test darwin only.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128036
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Oscar Fuentes [Mon, 21 Mar 2011 23:07:53 +0000 (23:07 +0000)]
Build the new RuntimeDyld library.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128035
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Oscar Fuentes [Mon, 21 Mar 2011 22:53:51 +0000 (22:53 +0000)]
Removed workaround for unspecified build problem on MinGW.
Tested that MinGW/MSYS builds fine without that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128033
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Jim Grosbach [Mon, 21 Mar 2011 22:15:52 +0000 (22:15 +0000)]
Library-ize the dyld components of llvm-rtdyld.
Move the dynamic linking functionality of the llvm-rtdyld program into an
ExecutionEngine support library. Update llvm-rtdyld to just load an object
file into memory, use the library to process it, then run the _main()
function, if one is found.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128031
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Devang Patel [Mon, 21 Mar 2011 22:04:45 +0000 (22:04 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128030
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Nick Lewycky [Mon, 21 Mar 2011 21:40:32 +0000 (21:40 +0000)]
Fix INT_MIN gotcha pointed out by Eli Friedman.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128028
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Devang Patel [Mon, 21 Mar 2011 21:37:52 +0000 (21:37 +0000)]
Force x86_64.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128027
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Bill Wendling [Mon, 21 Mar 2011 21:08:27 +0000 (21:08 +0000)]
Call static functions so that they aren't left unused.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128020
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Devang Patel [Mon, 21 Mar 2011 20:32:56 +0000 (20:32 +0000)]
Enable this test only for Darwin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128017
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Ted Kremenek [Mon, 21 Mar 2011 18:38:03 +0000 (18:38 +0000)]
Provide a means for CrashRecovery clients to determine if code is currently running while crash recovery cleanups are being processed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128008
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Ted Kremenek [Mon, 21 Mar 2011 18:37:59 +0000 (18:37 +0000)]
Allow a client to clear an IntrustiveRefCntPtr (deliberately leaking the referenced object).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128007
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Eric Christopher [Mon, 21 Mar 2011 18:06:32 +0000 (18:06 +0000)]
Fix unused param warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128005
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Eric Christopher [Mon, 21 Mar 2011 18:06:21 +0000 (18:06 +0000)]
Grammar-o.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128004
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Jay Foad [Mon, 21 Mar 2011 16:38:22 +0000 (16:38 +0000)]
Fix typos in assert messages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128002
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Anders Carlsson [Mon, 21 Mar 2011 14:54:40 +0000 (14:54 +0000)]
More cleanups to the OptimizeEmptyGlobalCXXDtors GlobalOpt function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127997
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Bill Wendling [Mon, 21 Mar 2011 08:59:17 +0000 (08:59 +0000)]
A WIP commit of the InstAlias printing cleanup. This code will soon replace the
code below it. Even though it looks very similar, it will match more precisely
and geneate better functions in the long run.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127991
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Bill Wendling [Mon, 21 Mar 2011 08:40:31 +0000 (08:40 +0000)]
Add the IAPrinter class.
This is a helper class that will make it easier to say which InstAliases can be
printed and which cannot (because of ambiguity).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127990
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Bill Wendling [Mon, 21 Mar 2011 08:31:53 +0000 (08:31 +0000)]
* Add classes that support the "feature" information.
* Move the code that emits the reg in reg class matching into its own function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127988
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Bill Wendling [Mon, 21 Mar 2011 04:13:46 +0000 (04:13 +0000)]
We need to pass the TargetMachine object to the InstPrinter if we are printing
the alias of an InstAlias instead of the thing being aliased. Because we need to
know the features that are valid for an InstAlias.
This is part of a work-in-progress.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127986
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Anders Carlsson [Mon, 21 Mar 2011 02:42:27 +0000 (02:42 +0000)]
As suggested by Nick Lewycky, ignore debugging intrinsics when trying to decide whether a destructor is empty or not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127985
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Nick Lewycky [Mon, 21 Mar 2011 02:26:01 +0000 (02:26 +0000)]
Fix comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127984
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Eli Friedman [Mon, 21 Mar 2011 01:33:03 +0000 (01:33 +0000)]
This README entry was fixed recently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127982
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Evan Cheng [Mon, 21 Mar 2011 01:19:09 +0000 (01:19 +0000)]
Re-apply r127953 with fixes: eliminate empty return block if it has no predecessors; update dominator tree if cfg is modified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127981
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Anders Carlsson [Sun, 20 Mar 2011 20:21:33 +0000 (20:21 +0000)]
Don't try to eliminate invokes to __cxa_atexit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127976
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Anders Carlsson [Sun, 20 Mar 2011 20:16:43 +0000 (20:16 +0000)]
Don't segfault on mutual recursion, as pointed out by Frits.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127975
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Anders Carlsson [Sun, 20 Mar 2011 19:51:13 +0000 (19:51 +0000)]
Address comments from Frits van Bommel.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127974
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Jakob Stoklund Olesen [Sun, 20 Mar 2011 19:46:23 +0000 (19:46 +0000)]
Process all dead defs after rematerializing during splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127973
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Rafael Espindola [Sun, 20 Mar 2011 18:44:20 +0000 (18:44 +0000)]
Write the section table and the section data in the same order that
gun as does. This makes it a lot easier to compare the output of both
as the addresses are now a lot closer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127972
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Anders Carlsson [Sun, 20 Mar 2011 17:59:11 +0000 (17:59 +0000)]
Add an optimization to GlobalOpt that eliminates calls to __cxa_atexit, if the function passed is empty.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127970
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Benjamin Kramer [Sun, 20 Mar 2011 15:52:24 +0000 (15:52 +0000)]
Avoid initializing posix_spawn_file_actions_t if not used.
- glibc falls back to fork+exec if a file actions object is present.
- On BSDs this saves a malloc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127969
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Argyrios Kyrtzidis [Sun, 20 Mar 2011 06:14:56 +0000 (06:14 +0000)]
If a class inherits from RefCountedBaseVPTR allow all its subclasses to be used with IntrusiveRefCntPtr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127966
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Jakob Stoklund Olesen [Sun, 20 Mar 2011 05:44:58 +0000 (05:44 +0000)]
Also eliminate redundant spills downstream of inserted reloads.
This can happen when multiple sibling registers are spilled after live range
splitting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127965
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Jakob Stoklund Olesen [Sun, 20 Mar 2011 05:44:55 +0000 (05:44 +0000)]
Change an argument to a LiveInterval instead of a register number to save some redundant lookups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127964
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Daniel Dunbar [Sun, 20 Mar 2011 00:04:51 +0000 (00:04 +0000)]
Disable test in a way that keeps lit happy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127962
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Jakob Stoklund Olesen [Sat, 19 Mar 2011 23:02:49 +0000 (23:02 +0000)]
Replace a broken LiveInterval::MergeValueInAsValue() with something simpler.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127960
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Jakob Stoklund Olesen [Sat, 19 Mar 2011 23:02:47 +0000 (23:02 +0000)]
Add debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127959
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Oscar Fuentes [Sat, 19 Mar 2011 22:52:33 +0000 (22:52 +0000)]
Make llvm-config.in configuration more MSYS-friendly.
Some of those POSIX <-> Windows command line conversions ended on
failure.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127958
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Oscar Fuentes [Sat, 19 Mar 2011 22:52:25 +0000 (22:52 +0000)]
CMake: store TARGET_TRIPLE on llvm-config.in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127957
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Oscar Fuentes [Sat, 19 Mar 2011 22:52:13 +0000 (22:52 +0000)]
Update CMake library dependencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127956
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Daniel Dunbar [Sat, 19 Mar 2011 21:47:14 +0000 (21:47 +0000)]
Revert r127953, "SimplifyCFG has stopped duplicating returns into predecessors
to canonicalize IR", it broke a lot of things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127954
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Evan Cheng [Sat, 19 Mar 2011 17:17:39 +0000 (17:17 +0000)]
SimplifyCFG has stopped duplicating returns into predecessors to canonicalize IR
to have single return block (at least getting there) for optimizations. This
is general goodness but it would prevent some tailcall optimizations.
One specific case is code like this:
int f1(void);
int f2(void);
int f3(void);
int f4(void);
int f5(void);
int f6(void);
int foo(int x) {
switch(x) {
case 1: return f1();
case 2: return f2();
case 3: return f3();
case 4: return f4();
case 5: return f5();
case 6: return f6();
}
}
=>
LBB0_2: ## %sw.bb
callq _f1
popq %rbp
ret
LBB0_3: ## %sw.bb1
callq _f2
popq %rbp
ret
LBB0_4: ## %sw.bb3
callq _f3
popq %rbp
ret
This patch teaches codegenprep to duplicate returns when the return value
is a phi and where the phi operands are produced by tail calls followed by
an unconditional branch:
sw.bb7: ; preds = %entry
%call8 = tail call i32 @f5() nounwind
br label %return
sw.bb9: ; preds = %entry
%call10 = tail call i32 @f6() nounwind
br label %return
return:
%retval.0 = phi i32 [ %call10, %sw.bb9 ], [ %call8, %sw.bb7 ], ... [ 0, %entry ]
ret i32 %retval.0
This allows codegen to generate better code like this:
LBB0_2: ## %sw.bb
jmp _f1 ## TAILCALL
LBB0_3: ## %sw.bb1
jmp _f2 ## TAILCALL
LBB0_4: ## %sw.bb3
jmp _f3 ## TAILCALL
rdar://
9147433
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127953
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Evan Cheng [Sat, 19 Mar 2011 17:03:16 +0000 (17:03 +0000)]
Minor code re-structuring.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127952
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Nadav Rotem [Sat, 19 Mar 2011 13:09:10 +0000 (13:09 +0000)]
Add support for legalizing UINT_TO_FP of vectors on platforms which do
not have native support for this operation (such as X86).
The legalized code uses two vector INT_TO_FP operations and is faster
than scalarizing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127951
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Eli Friedman [Sat, 19 Mar 2011 05:02:14 +0000 (05:02 +0000)]
Update Passes.html, part 3: alphabetize descriptions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127948
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Eli Friedman [Sat, 19 Mar 2011 04:55:29 +0000 (04:55 +0000)]
Update Passes.html, part 2: cleanup a bit more dead docs, a few more
description updates.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127947
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Eli Friedman [Sat, 19 Mar 2011 04:47:52 +0000 (04:47 +0000)]
Update Passes.html, part 1: remove passes which were removed from the tree,
update short descriptions to match those from the options, alphabetize table
of contents.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127946
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Stuart Hastings [Sat, 19 Mar 2011 03:56:38 +0000 (03:56 +0000)]
Disable test to unbreak Linux. Radar
9156771.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127945
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Stuart Hastings [Sat, 19 Mar 2011 02:42:31 +0000 (02:42 +0000)]
Reapply 127939 since Daniel fixed the breakage. <rdar://problem/
9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944
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Stuart Hastings [Sat, 19 Mar 2011 02:33:56 +0000 (02:33 +0000)]
Revert 127939. <rdar://problem/
9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127943
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Devang Patel [Sat, 19 Mar 2011 01:40:43 +0000 (01:40 +0000)]
Test case for r127940.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127941
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Stuart Hastings [Sat, 19 Mar 2011 01:32:01 +0000 (01:32 +0000)]
Revise r126127 to address Daniel's comments. <rdar://problem/
9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127939
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Johnny Chen [Sat, 19 Mar 2011 01:16:20 +0000 (01:16 +0000)]
Fixed an assert by the ARM disassembler for LDRD_PRE/POST.
The relevant instruction table entries were changed sometime ago to no longer take
<Rt2> as an operand. Modify ARMDisassemblerCore.cpp to accomodate the change and
add a test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127935
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Ted Kremenek [Sat, 19 Mar 2011 00:59:37 +0000 (00:59 +0000)]
Tweak CrashRecoveryContextCleanup to provide an easy method for clients to select between 'delete' and 'destructor' cleanups, and allow the destructor of CrashRecoveryContextCleanupRegister to be pseudo re-entrant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127929
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Ted Kremenek [Sat, 19 Mar 2011 00:59:33 +0000 (00:59 +0000)]
Tweak CrashRecoveryContext::GetCurrent() to return quickly if 'gCrsahRecoveryEnabled' is false. This avoids us needing to go to thread local storage for
the performance sensitive case where we are compiling code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127928
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