Commit Graph

58880 Commits

Author SHA1 Message Date
Chris Lattner fb2ceede8f fix some buggy ops concatentation
llvm-svn: 98869
2010-03-18 21:06:54 +00:00
Chris Lattner 0f03747577 eliminate support for "ops" in the input/output list of an
instruction.  Instructions must use 'ins' and 'outs' now.

llvm-svn: 98868
2010-03-18 20:56:35 +00:00
Chris Lattner b7f6d172b8 use ins/outs
llvm-svn: 98867
2010-03-18 20:55:31 +00:00
Chris Lattner 983b479c91 use ins/outs.
llvm-svn: 98866
2010-03-18 20:55:18 +00:00
Chris Lattner 5f418eafdc remove some code that was working around old sparc v9 backend bugs.
Add checking that the input/output operand list in spelled right.

llvm-svn: 98865
2010-03-18 20:50:52 +00:00
Chris Lattner 0204bc3de1 outs come before ins.
llvm-svn: 98864
2010-03-18 20:50:06 +00:00
Eric Christopher 52ecfdf3c5 Make fast-isel understand llvm.stackprotector.
llvm-svn: 98862
2010-03-18 20:27:26 +00:00
Bob Wilson a7f236ae3a Refactor NEON ld/st instructions to hardcode class arguments that are constants.
No functional changes.

llvm-svn: 98860
2010-03-18 20:18:39 +00:00
Daniel Dunbar 9e6437ee7d lit: Tweak example tests config.
llvm-svn: 98859
2010-03-18 20:06:05 +00:00
Daniel Dunbar 63ec093b6e MC/X86/AsmMatcher: Use the new instruction cleanup routine to implement a
temporary workaround for matching inc/dec on x86_64 to the correct instruction.
 - This hack will eventually be replaced with a robust mechanism for handling
   matching instructions based on the available target features.

llvm-svn: 98858
2010-03-18 20:06:02 +00:00
Daniel Dunbar 451a435473 MC/AsmMatcher: Add support for target specific "instruction cleanup" functions,
to allow custom post-processing of matched instructions.

llvm-svn: 98857
2010-03-18 20:05:56 +00:00
Chris Lattner b3f659c8c8 fix an x86-64 encoding bug Daniel found.
llvm-svn: 98855
2010-03-18 20:04:36 +00:00
Dan Gohman 17323bb7cf offsetof always has type size_t.
llvm-svn: 98854
2010-03-18 19:37:35 +00:00
Dan Gohman a5ca578384 Simplify this code.
llvm-svn: 98853
2010-03-18 19:34:33 +00:00
Benjamin Kramer f9c044f6dc Fix a name clash that was breaking MSVC builds.
llvm-svn: 98852
2010-03-18 19:34:06 +00:00
Dan Gohman cb4935018d Explicitly cast std::min's arguments to avoid type mismatches.
llvm-svn: 98851
2010-03-18 19:01:12 +00:00
Gabor Greif a9d0ef1e45 another one
llvm-svn: 98850
2010-03-18 18:59:08 +00:00
Dan Gohman 01c65a2622 Define placement new wrappers for BumpPtrAllocator and
RecyclingAllocator to allow client code to be simpler, and
simplify several clients.

llvm-svn: 98847
2010-03-18 18:49:47 +00:00
Dan Gohman ed4c2eb7bf Make this test more lenient; with SmallVector now using actually
aligned storage, the capacity may be more than what is explicitly
requested.

llvm-svn: 98846
2010-03-18 18:47:50 +00:00
Bob Wilson 3c7cde466e Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table.  The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the branch folding pass to
merge tables.  Unfortunately, the same getJumpTableIndex() method is also
used to merge tables in branch folding, so as a result of this change
branch tables are never merged.  Worse, the branch folding code is expecting
getJumpTableIndex to always return the index of an existing table, but with
this change, it never does so.  In at least some cases, e.g., pr6543, this
creates references to non-existent tables.

I've fixed the problem by adding a new createJumpTableIndex function, which
will always create a new table, and I've changed getJumpTableIndex to only
look at existing tables.

llvm-svn: 98845
2010-03-18 18:42:41 +00:00
Dan Gohman 48d09cab66 Fix a bug found by inspection; in the __GNUC__ code, the alignment
doesn't apply to the type, only to the variable, so subsequent uses
of U which expect it to be aligned weren't actually aligned.

llvm-svn: 98843
2010-03-18 18:40:47 +00:00
Andrew Lenharth 1a5bea2017 Nick wants these alphabetized
llvm-svn: 98840
2010-03-18 18:18:00 +00:00
Chris Lattner a3a66b28b6 add a special relocation type for movq loads for object
files that produce special relocation types where the 
linker changes movq's into lea's.

llvm-svn: 98839
2010-03-18 18:10:56 +00:00
Dan Gohman 5856f2092c Add explicit braces to avoid ambiguous ‘else’.
llvm-svn: 98838
2010-03-18 18:07:13 +00:00
Chris Lattner eaceb9fd39 callq is pcrelative
llvm-svn: 98835
2010-03-18 17:52:22 +00:00
Bob Wilson ce51f782dd Check if function names start with "llvm." before trying to lookup them up as
intrinsics.  The intrinsic lookup code assumes that this check has been done
and assumes the names are at least 6 characters long.  Valgrind complained
about this.  pr6638.

llvm-svn: 98831
2010-03-18 16:52:15 +00:00
Devang Patel 0b39f10d10 Fix comment.
llvm-svn: 98830
2010-03-18 16:41:16 +00:00
Dan Gohman 6556c8962c Add the ability to "intern" FoldingSetNodeID data into a
BumpPtrAllocator-allocated region to allow it to be stored in a more
compact form and to avoid the need for a non-trivial destructor call.

Use this new mechanism in ScalarEvolution instead of
FastFoldingSetNode to avoid leaking memory in the case where a
FoldingSetNodeID uses heap storage, and to reduce overall memory
usage.

llvm-svn: 98829
2010-03-18 16:16:38 +00:00
Wesley Peck 3aa84e531e Adding MicroBlaze as an experimental backend in the release notes
llvm-svn: 98824
2010-03-18 14:31:30 +00:00
Oscar Fuentes e5ca63acc8 CMake: Add options for using static runtime on MSVC++ build.
Patch by Victor Zverovich!

llvm-svn: 98821
2010-03-18 13:52:05 +00:00
Kovarththanan Rajaratnam dae75defc8 Add an extra newline to separate PP directives from the contents
llvm-svn: 98820
2010-03-18 13:16:38 +00:00
Benjamin Kramer 4f67227625 Try to fix a valgrind error on 32 bit platforms: use %zu instead of %llu to format a size_t.
llvm-svn: 98819
2010-03-18 12:18:36 +00:00
Jeffrey Yasskin fa22878d9d Avoid a problem in libc_freeres() seen on a linux-i686 buildbot when running
under valgrind:

==19577== Invalid free() / delete / delete[]
==19577==    at 0x4C9C866: free (vg_replace_malloc.c:325)
==19577==    by 0x5121104: ??? (in /lib/libc-2.10.2.so)
==19577==    by 0x4C97412: _vgnU_freeres (vg_preloaded.c:62)
==19577==    by 0x5041486: __run_exit_handlers (exit.c:93)
==19577==    by 0x50414FE: exit (exit.c:100)
==19577==    by 0x5028B5C: (below main) (libc-start.c:254)
==19577==  Address 0xffffffff is not stack'd, malloc'd or (recently) free'd
==19577== 

Apparently this happens under certain versions of glibc, so valgrind provides
the --run-libc-freeres=no option to avoid calling freeres().  This may increase
the number of "still reachable" blocks valgrind reports, but we don't care
about those, while this error breaks the buildbots.

There are upstream bugs about this at
http://sourceware.org/bugzilla/show_bug.cgi?id=10610 and
http://bugs.kde.org/show_bug.cgi?id=167483, but they don't look likely to be
fixed.

llvm-svn: 98813
2010-03-18 07:00:12 +00:00
Evan Cheng bf724b9ee0 Turning off post-ra scheduling for x86. It isn't a consistent win.
llvm-svn: 98810
2010-03-18 06:55:42 +00:00
Chris Lattner 5b59a73dc1 add a couple blurbs back
llvm-svn: 98809
2010-03-18 06:52:15 +00:00
Dan Gohman 0052449e1a Reapply r98755 with a thinko which miscompiled gengtype fixed.
llvm-svn: 98793
2010-03-18 01:17:13 +00:00
Daniel Dunbar 9c64ec0a7e MCValue: Change to holding MCSymbolRefExprs instead of MCSymbols, we will need this for accessing to symbol modifiers.
llvm-svn: 98791
2010-03-18 00:59:10 +00:00
Daniel Dunbar 6a7bd66d8e Add MCSymbol::isInSection.
llvm-svn: 98790
2010-03-18 00:59:02 +00:00
Daniel Dunbar 6544baff6f MC/Darwin: Add a new target hook for whether the target uses "reliable" symbol differences, basically whether the assembler should attempt to understand atoms when using scattered symbols.
Also, avoid some virtual call overhead.

llvm-svn: 98789
2010-03-18 00:58:53 +00:00
Jakob Stoklund Olesen 8575110ae1 Revert "Change coalescer complexity from N^2 to N logN by changing one letter."
This reverts commit 98776. It broke the llvm-gcc boot strap.

llvm-svn: 98784
2010-03-18 00:23:47 +00:00
Evan Cheng 68333f5c6e X86 address mode matching code MatchAddressRecursively does some aggressive hack which require doing a RAUW. It may end up deleting some SDNode up stream. It should avoid referencing deleted nodes.
llvm-svn: 98780
2010-03-17 23:58:35 +00:00
Devang Patel 7976f6f03c Debug info intrinsic does not intefer during tail call optimization.
llvm-svn: 98778
2010-03-17 23:52:37 +00:00
Johnny Chen 274a0d3794 Revert 98745 with respect to the addition of NEONFrm subformats for disassembly.
There is a better way coming up.

llvm-svn: 98777
2010-03-17 23:26:50 +00:00
Jakob Stoklund Olesen 6589f7152e Change coalescer complexity from N^2 to N logN by changing one letter.
Remove ugly hack that aborted the coalescer before using N^2 time.

This affects functions with very complicated live intervals for physical
registers, i.e. functions with thousands of function calls.

llvm-svn: 98776
2010-03-17 23:21:58 +00:00
Johnny Chen 0910b5afac Fixed a bug in the IT mask printing where T means the cond bit in the mask
matches that of Firstcond[0] and E means otherwise.  The Firstcond[0] is also
tagged in the Mask to facilitate Asm printing.  The disassembler also depends
on this arrangement.  This is similar to what's described in A2.5.2 ITSTATE.

Ran:

utils/lit/lit.py test/CodeGen/ARM test/CodeGen/Thumb test/CodeGen/Thumb2

successfully.

llvm-svn: 98775
2010-03-17 23:14:23 +00:00
Johnny Chen 8609782366 Refines 98745 so that it only contains the patch related to the output of the
addressing modes to omit the '+' from the assembler syntax #+/-<imm> or +/-<Rm>.

This patch removes the impl of printT2AddrModeImm8s4OffsetOperand() from
ARMAsmPrinter.cpp.  It is used by disassembler as of now.

llvm-svn: 98774
2010-03-17 23:01:59 +00:00
Sean Callanan 8b02a0f769 Changed install_name for libEnhancedDisassembly.dylib on
Mac OS X to match current install location.  This has no
effect on other platforms.

llvm-svn: 98773
2010-03-17 22:01:36 +00:00
Jim Grosbach 021b995bb2 remove arm mode workaround for ARM host
llvm-svn: 98771
2010-03-17 21:28:19 +00:00
Jim Grosbach 86bcdccb65 Use llvm-gcc to build ARM when it's available
llvm-svn: 98770
2010-03-17 21:25:13 +00:00
Bob Wilson a6fe21a79a Clean up whitespace.
llvm-svn: 98769
2010-03-17 21:16:45 +00:00
Bob Wilson 69ba1bcd05 Increase format field from 5 to 6 bits. ARMII::FormMask was increased to 0x3f
in svn r74988 but the format field was never widened.

llvm-svn: 98768
2010-03-17 21:13:43 +00:00
Benjamin Kramer a4d1c8f59f Initialize Size member to appease valgrind.
llvm-svn: 98763
2010-03-17 19:55:31 +00:00
Dan Gohman d2abecaeea Revert 98755, which may be causing trouble.
llvm-svn: 98762
2010-03-17 19:54:53 +00:00
Gabor Greif 6221720599 feedback from Nick
llvm-svn: 98761
2010-03-17 19:27:31 +00:00
Dan Gohman 5c9b0e1a6e Change SCEVNAryExpr's operand array from a SmallVector to a plain
pointer and length, and allocate the arrays in ScalarEvolution's
BumpPtrAllocator, so that they get released when their owning
SCEV gets released. SCEVs are immutable, so they don't need to worry
about operand array resizing. This fixes a memory leak reported
in PR6637.

llvm-svn: 98755
2010-03-17 18:51:01 +00:00
Bob Wilson 5a00b19a29 Remove an unnecessary (and misspelled) typedef. Tweak whitespace.
llvm-svn: 98753
2010-03-17 18:43:25 +00:00
Andrew Lenharth e78e58ce2f missing include
llvm-svn: 98752
2010-03-17 18:33:00 +00:00
Johnny Chen 6e81f67b09 98745 contains something unrelated to the patch.
Remove it from ARMAddressingModes.h.

llvm-svn: 98751
2010-03-17 18:32:39 +00:00
Chris Lattner 9b65c38961 notes from evan
llvm-svn: 98748
2010-03-17 18:15:52 +00:00
Johnny Chen 8f3004cff2 Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98745
2010-03-17 17:52:21 +00:00
Stuart Hastings 6981c258f7 Testcase for r98728.
llvm-svn: 98744
2010-03-17 17:51:08 +00:00
Devang Patel 852a04e7ce Fix EmitSectionOffset incorrect argument. DwarfDebug is emitting debug info so isEH is always false. This was hiding until now from compilers because of default arguments. This was hiding from dwarf debug info users because for most of the platform isAbsoluteEHSectionOffsets() is same as isAbsoluteDebugSectionOffsets(). But Chris found it while updating dwarf printer to use MC*.
llvm-svn: 98743
2010-03-17 17:29:55 +00:00
Chris Lattner 6aba4862c5 several updates
llvm-svn: 98742
2010-03-17 17:25:49 +00:00
Jeffrey Yasskin 11122eafe7 Make lit pay attention to --vg for tcl tests too, which makes it work on LLVM's
non-unit tests.

llvm-svn: 98741
2010-03-17 17:04:56 +00:00
John Criswell 2a4b080c5d Fixed spelling errors.
llvm-svn: 98724
2010-03-17 15:01:50 +00:00
Jeffrey Yasskin c4e3f05380 Fix a false-positive memory leak in code using RemoveFileOnSignal(). Because
libstdc++'s std::string class points to the interior of an allocation, valgrind
reports strings still alive at program termination as possible leaks.  I didn't
use a ManagedStatic for this because System can't depend on Support.

llvm-svn: 98716
2010-03-17 07:08:12 +00:00
Chris Lattner 6184f4db34 combiner-aa too, what's its status?
llvm-svn: 98715
2010-03-17 06:42:25 +00:00
Chris Lattner 10a3cc46fd more chris scribble.
llvm-svn: 98714
2010-03-17 06:41:58 +00:00
Chris Lattner aed00fa039 fix GetOrCreateTemporarySymbol to require a name, clients
should use CreateTempSymbol() if they don't care about the
name.

llvm-svn: 98712
2010-03-17 05:41:18 +00:00
Chris Lattner 0b1c9a52b4 add a bunch of random and unformatted notes as I am reading
through tons of old commits.

llvm-svn: 98709
2010-03-17 04:41:49 +00:00
Chris Lattner c871bac79b add logo, comment out project info, they need to send updates
to get reincluded.

llvm-svn: 98706
2010-03-17 04:02:39 +00:00
Chris Lattner 476e541673 remove dead variable, patch by Nathan Howell!
llvm-svn: 98704
2010-03-17 01:45:17 +00:00
Jeffrey Yasskin b5cd01335b Fix death tests in -Asserts builds.
llvm-svn: 98701
2010-03-17 01:18:45 +00:00
Bob Wilson 572a194c35 Remove a check that can no longer be true, after r84803.
llvm-svn: 98694
2010-03-16 23:40:32 +00:00
Bob Wilson c7ba918b84 Revert 98683. It is breaking something in the disassembler.
llvm-svn: 98692
2010-03-16 23:01:13 +00:00
Evan Cheng 403062313f Fix liveintervals handling of dbg_value instructions.
llvm-svn: 98686
2010-03-16 21:51:27 +00:00
Bob Wilson c953bca10b Remove redundant writeback flag from ARM address mode 6. Also remove the
optional register update argument, which is currently unused -- when we add
support for that, it can just be a separate operand.

llvm-svn: 98683
2010-03-16 21:44:40 +00:00
Chris Lattner 8fce3dddfa reapply r98656 unmodified, which exposed the asmprinter not
handling constant unions.

llvm-svn: 98680
2010-03-16 21:25:55 +00:00
Johnny Chen 71ab18bdd5 Disambiguate the *_UPD and * variants by specifying the writeback flag as 1.
This is for the disassembly work.

There are cases where this is not possible, for example, A8.6.53 LDM Encoding T1.
In such case, we'll use an adhoc approach to deduce the Opcode programmatically.

llvm-svn: 98679
2010-03-16 21:25:05 +00:00
Chris Lattner b981fcf2d8 add asmprinter suport for unions, fixing Feature/unions.ll to actually
be doing something useful.

llvm-svn: 98677
2010-03-16 21:21:35 +00:00
Devang Patel a0bb715977 Ignore debug value instructions while analyzing BB for tail duplication.
llvm-svn: 98675
2010-03-16 21:02:07 +00:00
Daniel Dunbar 8801b810bb Revert r98666 too; it's checkin-without-testing day!
llvm-svn: 98673
2010-03-16 20:52:59 +00:00
Benjamin Kramer f2e4b5dd7f str[r]chr returns its pointer argument so we cannot mark it as nocapture. Thanks to Duncan for spotting my mistake.
llvm-svn: 98671
2010-03-16 20:33:15 +00:00
Chris Lattner 5aa4a42c77 temporarily xfail
llvm-svn: 98666
2010-03-16 20:08:07 +00:00
Benjamin Kramer 5cf5fd2ffa Mark str[r]chr readonly.
llvm-svn: 98663
2010-03-16 19:36:43 +00:00
Daniel Dunbar 3a374da973 Revert r98656, its breaking all over the place.
llvm-svn: 98662
2010-03-16 19:35:34 +00:00
Chris Lattner 9ae99e0df5 improve support for uniontype and ConstantUnion, patch by Tim Northover!
llvm-svn: 98656
2010-03-16 19:15:03 +00:00
Dan Gohman 5a6dc1dd09 Add an rdar number to this test.
llvm-svn: 98654
2010-03-16 19:08:20 +00:00
Chris Lattner 13439783fb work around an MSVC2010 bug, PR6504
llvm-svn: 98653
2010-03-16 19:07:05 +00:00
Duncan Sands e0fa09cb05 Chris pointed out that producing undef here is wrong in
general.

llvm-svn: 98649
2010-03-16 18:50:54 +00:00
Bob Wilson 466d1e3dc2 Remove redundant writeback flag in ARM addressing mode 5.
llvm-svn: 98648
2010-03-16 18:38:09 +00:00
Bob Wilson d6243b49d4 Remove the writeback flag from ARM's address mode 4. Now that we have separate
instructions for ld/st with writeback, the flag is completely redundant.

llvm-svn: 98643
2010-03-16 17:46:45 +00:00
Bob Wilson ceda0780f9 Fix unused variable warnings.
llvm-svn: 98642
2010-03-16 17:44:45 +00:00
Bob Wilson 1b4e8cc69c --- Reverse-merging r98637 into '.':
U    test/CodeGen/ARM/tls2.ll
U    test/CodeGen/ARM/arm-negative-stride.ll
U    test/CodeGen/ARM/2009-10-30.ll
U    test/CodeGen/ARM/globals.ll
U    test/CodeGen/ARM/str_pre-2.ll
U    test/CodeGen/ARM/ldrd.ll
U    test/CodeGen/ARM/2009-10-27-double-align.ll
U    test/CodeGen/Thumb2/thumb2-strb.ll
U    test/CodeGen/Thumb2/ldr-str-imm12.ll
U    test/CodeGen/Thumb2/thumb2-strh.ll
U    test/CodeGen/Thumb2/thumb2-ldr.ll
U    test/CodeGen/Thumb2/thumb2-str_pre.ll
U    test/CodeGen/Thumb2/thumb2-str.ll
U    test/CodeGen/Thumb2/thumb2-ldrh.ll
U    utils/TableGen/TableGen.cpp
U    utils/TableGen/DisassemblerEmitter.cpp
D    utils/TableGen/RISCDisassemblerEmitter.h
D    utils/TableGen/RISCDisassemblerEmitter.cpp
U    Makefile.rules
U    lib/Target/ARM/ARMInstrNEON.td
U    lib/Target/ARM/Makefile
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMAsmPrinter.cpp
U    lib/Target/ARM/AsmPrinter/ARMInstPrinter.h
D    lib/Target/ARM/Disassembler
U    lib/Target/ARM/ARMInstrFormats.td
U    lib/Target/ARM/ARMAddressingModes.h
U    lib/Target/ARM/Thumb2ITBlockPass.cpp

llvm-svn: 98640
2010-03-16 16:59:47 +00:00
Johnny Chen 3d9327bd06 Initial ARM/Thumb disassembler check-in. It consists of a tablgen backend
(RISCDisassemblerEmitter) which emits the decoder functions for ARM and Thumb,
and the disassembler core which invokes the decoder function and builds up the
MCInst based on the decoded Opcode.

Added sub-formats to the NeonI/NeonXI instructions to further refine the NEONFrm
instructions to help disassembly.

We also changed the output of the addressing modes to omit the '+' from the
assembler syntax #+/-<imm> or +/-<Rm>.  See, for example, A8.6.57/58/60.

And modified test cases to not expect '+' in +reg or #+num.  For example,

; CHECK:       ldr.w	r9, [r7, #28]

llvm-svn: 98637
2010-03-16 16:36:54 +00:00
Bob Wilson 298a83ecfe Stop using the old pre-UAL syntax for LDM/STM instruction suffixes.
This does not move entirely to UAL syntax, since the default "increment after"
suffix is empty but we still use "IA" for that.

llvm-svn: 98635
2010-03-16 16:19:07 +00:00
Gabor Greif e52f398e3e more BranchInst tests
llvm-svn: 98634
2010-03-16 15:53:58 +00:00
Daniel Dunbar 0b5310b9f2 NNT: Add -nouname option, so machine uniquing can occur across physical machines.
llvm-svn: 98633
2010-03-16 15:53:02 +00:00
Gabor Greif c377afce8e add BranchInst tests
llvm-svn: 98632
2010-03-16 15:26:09 +00:00
Gabor Greif 421dd12853 appease valgrind testers
llvm-svn: 98628
2010-03-16 12:32:03 +00:00
Duncan Sands 57f1191b0d Check that P is not zero initialized.
llvm-svn: 98627
2010-03-16 11:36:35 +00:00
Gabor Greif 86ca5493f7 add single return tests
llvm-svn: 98625
2010-03-16 11:24:53 +00:00
Gabor Greif 35a9b8baeb fix PR6589
adjusted unittest

I have added some doxygen to OptionalOperandTraits,
so hopefully there will be no confusion in the future.

Incidentally OptionalOperandTraits is not used any more (IIUC),
but the obvious client would be BranchInstr, and I plan
to rearrange it that way.

llvm-svn: 98624
2010-03-16 10:59:48 +00:00
Gabor Greif 155803840b begin humbly with a repro of PR6589
llvm-svn: 98623
2010-03-16 09:55:46 +00:00
Chris Lattner fd381328ff add support for bugpointing the integrated assembler. Something like this
works for me: bugpoint Output/bisort.llvm.bc -run-llc-ia -safe-run-llc

This uses llc with the integrated assembler as the test compiler and llc
without it as the safe compiler.

llvm-svn: 98618
2010-03-16 06:41:47 +00:00
Chris Lattner cf910439ee fix the same bug on the x86-64 side of the fence.
llvm-svn: 98616
2010-03-16 06:39:08 +00:00
Chris Lattner f5fec8fd8d fix the encoding of TAILJMPd. This fixes Benchmarks/Olden/bisort
with the integrated assembler!

llvm-svn: 98615
2010-03-16 06:30:18 +00:00
Jeffrey Yasskin 7d83d9b23c Avoid a memory leak in JITDebugRegisterer.
llvm-svn: 98612
2010-03-16 05:54:54 +00:00
Bob Wilson 5125770346 Add a testcase for the change in r98586.
llvm-svn: 98610
2010-03-16 05:33:29 +00:00
Bill Wendling e03ecd01aa Use getFirstTerminator().
llvm-svn: 98604
2010-03-16 02:01:51 +00:00
Bill Wendling 31d7f0d96a Forgot testcase for r98599.
llvm-svn: 98602
2010-03-16 01:54:20 +00:00
Bill Wendling a8f54f032d When checking if something's killed, don't rely simply on whether it's marked as
"used outside of the block". If the block ends in a return, then it won't be
used outside of it.

llvm-svn: 98599
2010-03-16 01:05:35 +00:00
Chris Lattner f57437abb1 don't form a RecordChild or CheckChildType for child #'s over 7, we don't
have enums for them.

llvm-svn: 98597
2010-03-16 00:35:11 +00:00
Bob Wilson ba75e81644 Wrap a long line and add some parens to be consistent.
llvm-svn: 98596
2010-03-16 00:31:15 +00:00
Chris Lattner db035a0af2 Fix the third (and last known) case of code update problems due
to LLVM IR changes with addr label weirdness.  In the testcase, we
generate references to the two bb's when codegen'ing the first
function:

_test1:                                 ## @test1
	leaq	Ltmp0(%rip), %rax
..
	leaq	Ltmp1(%rip), %rax

Then continue to codegen the second function where the blocks
get merged.  We're now smart enough to emit both labels, producing
this code:

_test_fun:                              ## @test_fun
## BB#0:                                ## %entry
Ltmp1:                                  ## Block address taken
Ltmp0:
## BB#1:                                ## %ret
	movl	$-1, %eax
	ret

Rejoice.

llvm-svn: 98595
2010-03-16 00:29:39 +00:00
Daniel Dunbar 5599256415 MC: Allow modifiers in MCSymbolRefExpr, and eliminate X86MCTargetExpr.
- Although it would be nice to allow this decoupling, the assembler needs to be able to reason about MCSymbolRefExprs in too many places to make this viable. We can use a target specific encoding of the variant if this becomes an issue.
 - This patch also extends llvm-mc to support parsing of the modifiers, as opposed to lumping them in with the symbol.

llvm-svn: 98592
2010-03-15 23:51:06 +00:00
Dan Gohman c6ddebd6d1 Recognize code for doing vector gather/scatter index calculations with
32-bit indices. Instead of shuffling each element out of the index vector,
when all indices are needed, just store the input vector to the stack and
load the elements out.

llvm-svn: 98588
2010-03-15 23:23:03 +00:00
Bob Wilson 3f2293bc02 Translate "cc" clobber in ARM inline assembly to ARM::CCRRegisterClass.
Radar 7459078.

llvm-svn: 98586
2010-03-15 23:09:18 +00:00
Devang Patel 45c1505bf6 Skip debug info intrinsics.
llvm-svn: 98584
2010-03-15 22:23:03 +00:00
Daniel Dunbar fe8d866fc7 MC/Mach-O/x86_64: Temporary labels in cstring sections require symbols (and external relocations, but we don't have x86_64 relocations yet).
llvm-svn: 98583
2010-03-15 21:56:50 +00:00
Daniel Dunbar 232dc953ac MC/Mach-O: Add MCSectionMachO::getType()
llvm-svn: 98582
2010-03-15 21:56:38 +00:00
Devang Patel b21991c4f5 Skip debug info intrinsics.
llvm-svn: 98581
2010-03-15 21:25:29 +00:00
Bill Wendling bbcaa40227 Now that the default for Darwin platforms is to place the LSDA into the TEXT
section, remove the target-specific code that performs this.

llvm-svn: 98580
2010-03-15 21:09:38 +00:00
Chris Lattner 561334a81f Implement support for the case when a reference to a addr-of-bb
label is generated, but then the block is deleted.  Since the
value is undefined, we just emit the label right after the entry 
label of the function.  It might matter that the label is in the
same section as the function was afterall.

llvm-svn: 98579
2010-03-15 20:39:00 +00:00
Chris Lattner c116a8707a use Mang->getSymbol()
llvm-svn: 98578
2010-03-15 20:37:57 +00:00
Chris Lattner 2ea586b8f5 use Mang->getSymbol() more.
llvm-svn: 98577
2010-03-15 20:37:38 +00:00
Douglas Gregor 6d7d7b5197 Extend MemoryBuffer::getFile() to take an optional "stat" structure
pointer. If given, the structure will be set with the stat information from
the file actually read.

llvm-svn: 98575
2010-03-15 20:32:14 +00:00
Devang Patel f2bce7cbae Create SDDbgValue for dbg_value intrinsics and remember its connections with DAG nodes.
This is a work in progress. Patch by Dale Johannesen!

llvm-svn: 98568
2010-03-15 19:15:44 +00:00
Chris Lattner 347a0eb85c Fix the case when a reference to an address taken BB is emitted in one
function, then the BB is RAUW'd before the definition is emitted.  There
are still two cases not being handled, but this should improve us back to
the situation before I touched anything.

llvm-svn: 98566
2010-03-15 19:09:43 +00:00
Devang Patel d3f41e8939 In "empty" bb, the return instruction may not be first instruction, if dbg value intrinsics are present in this bb. Use terminator to find return instructions.
llvm-svn: 98565
2010-03-15 19:05:46 +00:00
Bill Wendling 0344874921 Place the LSDA into the TEXT section for x86 Darwin. If the global it's pointing
to is local to the translation unit, we need to place fill the value of that
symbol into the non-lazy pointer.

This should conclude all Darwin changes for placing the LSDA into the TEXT
section. There is some cleanup to do. I.e., there's no longer a special need for
target-specific code here. But that can come later.

llvm-svn: 98564
2010-03-15 19:04:37 +00:00
Evan Cheng ae5edee6c8 Avoid sibcall optimization if either caller or callee is using sret semantics.
llvm-svn: 98561
2010-03-15 18:54:48 +00:00
Chris Lattner 49ee281213 revert r98550, it isn't necessary or sufficient.
llvm-svn: 98558
2010-03-15 18:42:01 +00:00
Devang Patel a3e9c9ca7b Emit dwarf variable info communicated by code generator through DBG_VALUE machine instructions.
This is a work in progress.

llvm-svn: 98556
2010-03-15 18:33:46 +00:00
Chris Lattner 51a6eb7d12 don't eliminate address-taken blocks here.
llvm-svn: 98550
2010-03-15 16:37:42 +00:00
Chris Lattner c73a361ac5 SIGN_EXTEND from the same type as the dest is valid.
llvm-svn: 98548
2010-03-15 16:15:56 +00:00
Chris Lattner d5df1f5b54 sink the call to VT.getSizeInBits() down into its uses,
not all unary nodes necessarily have a simple result type.

llvm-svn: 98547
2010-03-15 16:05:15 +00:00
Duncan Sands 145584e037 Treat copysignl like the other copysign functions.
llvm-svn: 98542
2010-03-15 14:01:44 +00:00
Jeffrey Yasskin a1d3908a35 Don't save a temporary string into a StringRef field.
llvm-svn: 98538
2010-03-15 06:59:21 +00:00
Chris Lattner 632eb65cd2 fix MCSectionELF to not leak memory, just like I did for MCSymbol.
MCSectionMachO is already fine (yay for fixed size arrays?),
MCSectionCOFF still leaks.

llvm-svn: 98537
2010-03-15 06:23:52 +00:00
Chris Lattner 133487696a fix a memory leak yjasskin pointed out: MCSymbol is bump pointer
allocated and thus not freed.  This is cool except that it contains
and std::string so the string data didn't get freed.  In any case
there is no reason to redundantly store the string data in the 
MCSymbol anyway, just make the MCSymbol ref the string data in the
MCContext StringMap.

llvm-svn: 98536
2010-03-15 06:15:35 +00:00
Chris Lattner 0db1d6500a eliminate some #if 0 code I added in r96905, type inference
now enforces that input/output named values have hte same type.

llvm-svn: 98535
2010-03-15 06:03:22 +00:00
Chris Lattner cabe037b2d Completely rewrite tblgen's type inference mechanism,
changing the primary datastructure from being a 
"std::vector<unsigned char>" to being a new TypeSet class
that actually has (gasp) invariants!

This changes more things than I remember, but one major
innovation here is that it enforces that named input 
values agree in type with their output values.

This also eliminates code that transparently assumes (in 
some cases) that SDNodeXForm input/output types are the
same, because this is wrong in many case.

This also eliminates a bug which caused a lot of ambiguous
patterns to go undetected, where a register class would
sometimes pick the first possible type, causing an
ambiguous pattern to get arbitrary results.

With all the recent target changes, this causes no 
functionality change!

llvm-svn: 98534
2010-03-15 06:00:16 +00:00
Chris Lattner 227aa3595b MachineMove ctor doesn't need to to mutate input, add 'const'
llvm-svn: 98533
2010-03-15 05:55:35 +00:00
Chris Lattner eb319f36b9 do some serious surgery on CellSPU to get it back into a world
where it uses types consistently.

llvm-svn: 98532
2010-03-15 05:53:47 +00:00
Chris Lattner 26e6273772 fix a few more ambiguous types.
llvm-svn: 98531
2010-03-15 05:53:30 +00:00
Chris Lattner 4f26c1a960 add some missing types
llvm-svn: 98530
2010-03-15 05:35:37 +00:00
Jeffrey Yasskin 3ddd88f523 Tell Valgrind when we modify already-executed machine code so it knows
to re-instrument the code.  We depend on the system valgrind.h to
avoid adding a new license.

llvm-svn: 98529
2010-03-15 04:57:55 +00:00
Chris Lattner 022a9fb269 various cleanups from daniel
llvm-svn: 98528
2010-03-15 04:12:21 +00:00
Chris Lattner ce81b3c120 fix an ambiguous pattern, contrary to expectations, scalar_to_vector
doesn't have a type constraint on the scalar because we don't have
an 'sAny' type.

llvm-svn: 98527
2010-03-15 00:52:43 +00:00
Chris Lattner f18c0e6b4b remove dead method.
llvm-svn: 98526
2010-03-15 00:00:42 +00:00
Chris Lattner 65a437fb80 don't forget to close a FD on an error condition, found by
cppcheck, PR6617.  Patch by Ettl Martin!

llvm-svn: 98525
2010-03-14 23:16:45 +00:00
Chris Lattner bbd8bd3257 tidy up and expound more on how half-float works.
llvm-svn: 98524
2010-03-14 23:03:31 +00:00
Chris Lattner 9fa851b9d4 tidy indentation
llvm-svn: 98523
2010-03-14 22:44:11 +00:00
Chris Lattner 402d6442c5 no really, all 64-bit cpu's have cmov support. This should
fix the rest of the buildbot failures on non-x86 hosts.

llvm-svn: 98522
2010-03-14 22:39:35 +00:00
Chris Lattner d03a956a01 filecheckize a test and mark these wiht a cpu so it passes
on hosts without cmovs.

llvm-svn: 98521
2010-03-14 22:31:16 +00:00
Chris Lattner 77f7dba60c all 64-bit cpus have cmov, this should fix CodeGen/X86/cmov.ll
(at least) on non-x86 builders.

llvm-svn: 98520
2010-03-14 22:24:34 +00:00
Benjamin Kramer cabfdb1e67 Remove pointless forward declaration, MSVC got confused by this.
llvm-svn: 98519
2010-03-14 22:00:28 +00:00
Duncan Sands ca595495e4 Turn calls to copysignl into an FCOPYSIGN node. Handle FCOPYSIGN nodes
with ppc_f128 type by having the type legalizer turn these back into a
call to copysignl.

llvm-svn: 98514
2010-03-14 21:08:40 +00:00
Evan Cheng 00fd0b6749 Rename SDDbgValue.h to SDNodeDbgValue.h for consistency.
llvm-svn: 98513
2010-03-14 19:56:39 +00:00
Chris Lattner f71cb6c439 fix ShrinkDemandedOps to not leave dead nodes around,
fixing PR6607

llvm-svn: 98512
2010-03-14 19:46:02 +00:00
Chris Lattner 468decdda2 rewrite ShrinkDemandedOps to be faster and indent less,
no functionality change.

llvm-svn: 98511
2010-03-14 19:43:04 +00:00
Evan Cheng 6a9e10905b Fix jit encoding bugs.
llvm-svn: 98510
2010-03-14 19:28:34 +00:00
Chris Lattner f1ed59a418 make -view-isel-dags print after the 'ShrinkDemandedOps' pass.
llvm-svn: 98509
2010-03-14 19:27:55 +00:00
Chris Lattner 5049f23592 don't have i386-specific tests in CodeGen/Generic, PR6601.
llvm-svn: 98508
2010-03-14 18:51:18 +00:00
Chris Lattner 6feb7e3325 fix PR6605, X86ISD::CMP always returns i32 (EFLAGS), not
the operand type.

llvm-svn: 98507
2010-03-14 18:44:35 +00:00
Anton Korobeynikov 79a7c7823d Fix typo
llvm-svn: 98506
2010-03-14 18:42:52 +00:00
Anton Korobeynikov cd4dd9c1db Document fp16 intrinsics
llvm-svn: 98505
2010-03-14 18:42:47 +00:00
Anton Korobeynikov 846a117892 Feature test for half precision FP.
llvm-svn: 98504
2010-03-14 18:42:43 +00:00
Anton Korobeynikov 0a65a37344 Add substarget feature for FP16
llvm-svn: 98503
2010-03-14 18:42:38 +00:00
Anton Korobeynikov d7fece38fc Add codegen support for FP16 on ARM
llvm-svn: 98502
2010-03-14 18:42:31 +00:00
Anton Korobeynikov 59e96008bd Make default expansion for FP16 <-> FP32 nodes into libcalls
llvm-svn: 98501
2010-03-14 18:42:24 +00:00
Anton Korobeynikov 39ed49df71 Add DAG nodes to represent FP16 <-> FP32 intrinsics
llvm-svn: 98500
2010-03-14 18:42:15 +00:00
Anton Korobeynikov b975fa6d9b Cleanup
llvm-svn: 98499
2010-03-14 18:42:08 +00:00
Anton Korobeynikov c6273f28a9 The fp16 <-> fp32 intrinsics are pure, mark them so they can be CSE'd, etc.
llvm-svn: 98498
2010-03-14 18:42:04 +00:00
Anton Korobeynikov 77bbbf782a Add intrinsics to represent fp16 <-> fp32 conversions
llvm-svn: 98497
2010-03-14 18:41:50 +00:00
Chris Lattner a30d4ce194 add support for pentium class CPUs which do not have cmov,
PR4841.  Patch by Craig Smith!

llvm-svn: 98496
2010-03-14 18:31:44 +00:00
Chris Lattner 9efbbcbe45 fix AsmPrinter::GetBlockAddressSymbol to always return a unique
label instead of trying to form one based on the BB name (which
causes collisions if the name is empty).  This fixes PR6608

llvm-svn: 98495
2010-03-14 17:53:23 +00:00
Chris Lattner 87dd2d6388 comment fix.
llvm-svn: 98494
2010-03-14 17:10:52 +00:00
Chris Lattner 28aae17fee shrink 4-byte branches to 1-byte branches when lowering from
MachineInstr -> MCInst.  This is what the assembler backend wants,
it relaxes from smaller to larger things.  This fixes rdar://7750815

llvm-svn: 98493
2010-03-14 17:04:18 +00:00
Bill Wendling 55e69d179b Skip over debug info when trying to merge two return BBs.
llvm-svn: 98491
2010-03-14 10:40:55 +00:00
Bill Wendling ee84f27536 Make returns more consistent with others.
llvm-svn: 98490
2010-03-14 10:40:28 +00:00
Chris Lattner 6e52e9db31 get MMI out of the label uniquing business, just go to MCContext
to get unique assembler temporary labels.

llvm-svn: 98489
2010-03-14 08:36:50 +00:00
Chris Lattner f1c2b9d3b1 fix these two get the mcsymbol operand instead of imm operand.
llvm-svn: 98487
2010-03-14 08:28:48 +00:00
Chris Lattner 073d817958 add a new CreateTempSymbol method, the use case for
CreateTempSymbol vs GetOrCreateTemporarySymbol are
completely different.

llvm-svn: 98486
2010-03-14 08:23:30 +00:00
Chris Lattner 6dcaba516f don't use getDWLabel("label" anymore, always go through MMI.
llvm-svn: 98485
2010-03-14 08:18:13 +00:00
Chris Lattner ff1fdd6787 remove now-dead code, all labels use MCSymbols.
llvm-svn: 98484
2010-03-14 08:17:53 +00:00
Chris Lattner b4666f4517 change SrcLineInfo to contain a label instead of a label ID.
llvm-svn: 98483
2010-03-14 08:15:55 +00:00
Chris Lattner d5e8d9f29a Now that DBG_LABEL is updated, we can finally make MachineMove
contain an MCSymbol instead of a label index.

llvm-svn: 98482
2010-03-14 08:12:40 +00:00
Chris Lattner c26f44fb07 change the DBG_LABEL MachineInstr to always be created
with an MCSymbol instead of an immediate.

llvm-svn: 98481
2010-03-14 07:56:48 +00:00
Chris Lattner 54109deae3 xfail properly
llvm-svn: 98479
2010-03-14 07:55:34 +00:00
Chris Lattner 8e2b12b164 unbreak the build, grr symlinks.
llvm-svn: 98477
2010-03-14 07:36:49 +00:00
Chris Lattner 1e2dc539b9 xfail these tests temporarily to get teh buildbots back to happy land.
llvm-svn: 98476
2010-03-14 07:32:48 +00:00
Chris Lattner 806f0fb7b1 Change this code to allocate temporary labels from mccontext,
not from MMI.

llvm-svn: 98475
2010-03-14 07:29:45 +00:00
Chris Lattner 1065f49ad9 switch GC_LABEL to use an MCSymbol operand instead of a label ID operand.
llvm-svn: 98474
2010-03-14 07:27:07 +00:00
Chris Lattner 5a6e262c72 Fix some EH failures on NNT I introduced in r98461
llvm-svn: 98471
2010-03-14 07:02:50 +00:00
Chris Lattner 04857fab70 fix a bug I introduced in r98459, causing some NNT failures.
llvm-svn: 98470
2010-03-14 06:50:56 +00:00
Evan Cheng 44be5362d6 Check in tablegen changes to fix disassembler related failures caused by r98465.
llvm-svn: 98468
2010-03-14 05:15:39 +00:00
Evan Cheng d703df67ce Do not force indirect tailcall through fixed registers: eax, r11. Add support to allow loads to be folded to tail call instructions.
llvm-svn: 98465
2010-03-14 03:48:46 +00:00
Daniel Dunbar aa8f95eb56 MC: Fix a crash on invalid, attempting to evaluate undefined symbols.
llvm-svn: 98464
2010-03-14 03:10:40 +00:00
Chris Lattner ee2fbbc978 change the LabelSDNode to be EHLabelSDNode and make it hold
an MCSymbol.  Make the EH_LABEL MachineInstr hold its label
with an MCSymbol instead of ID.  Fix a bug in MMI.cpp which
would return labels named "Label4" instead of "label4".

llvm-svn: 98463
2010-03-14 02:33:54 +00:00
Chris Lattner 07293da97e eliminate InvalidateLabel and LabelIDList from MMI and replace
them with a counter.

llvm-svn: 98462
2010-03-14 02:24:55 +00:00
Chris Lattner ee95d4c61c use Label->isDefined() instead of isLabelDeleted() now that we
consistently use MCSymbol and only call this predicate after
they should have been emitted.

llvm-svn: 98461
2010-03-14 02:20:58 +00:00
Chris Lattner f7aa541107 fix some pointless layering violations.
llvm-svn: 98460
2010-03-14 01:56:06 +00:00
Chris Lattner 34adc8d225 change EH related stuff (other than EH_LABEL) to use MCSymbol
instead of label ID's.  This cleans up and regularizes a bunch 
of code and makes way for future progress.

Unfortunately, this pointed out to me that JITDwarfEmitter.cpp
is largely copy and paste from DwarfException/MachineModuleInfo
and other places.  This is very sad and disturbing. :(

One major change here is that TidyLandingPads moved from being
called in DwarfException::BeginFunction to being called in
DwarfException::EndFunction.  There should not be any 
functionality change from doing this, but I'm not an EH expert.

llvm-svn: 98459
2010-03-14 01:41:15 +00:00
Daniel Dunbar f3530bdd8a X86_64: Fix encoding for the rest of the 64i32 instructions too.
llvm-svn: 98458
2010-03-13 22:57:53 +00:00
Daniel Dunbar d324a7c990 X86: Fix ADD64i32 encoding.
llvm-svn: 98457
2010-03-13 22:49:39 +00:00
Daniel Dunbar 7c1f3d8cad MC/X86_64: Symbol support.
llvm-svn: 98456
2010-03-13 22:49:35 +00:00
Daniel Dunbar 56597588f0 MC/Mach-O: Initial x86_64 support.
llvm-svn: 98454
2010-03-13 22:10:17 +00:00
Daniel Dunbar c19fb6f96d macho-dump: Basic Mach 64 support.
llvm-svn: 98453
2010-03-13 22:10:11 +00:00
Chris Lattner 29bdac4928 eliminate the now-unneeded context argument of MBB::getSymbol()
llvm-svn: 98451
2010-03-13 21:04:28 +00:00
Chris Lattner e468f88b26 rearrange MCContext ownership. Before LLVMTargetMachine created it
and passing off ownership to AsmPrinter.  Now MachineModuleInfo
creates it and owns it by value.  This allows us to use MCSymbols
more consistently throughout the rest of the code generator, and
simplifies a bit of code.  This also allows MachineFunction to 
keep an MCContext reference handy, and cleans up the TargetRegistry
interfaces for AsmPrinters.

llvm-svn: 98450
2010-03-13 20:55:24 +00:00
Jeffrey Yasskin 754d2dc041 Make lit pay attention to --vg for unittests too.
llvm-svn: 98449
2010-03-13 20:45:41 +00:00
Jeffrey Yasskin 0374d7feb0 Allow types that have been forwarded to to be freed.
Tested: make check-lit && valgrind --dsymutil=yes --leak-check=full unittests/ExecutionEngine/JIT/Debug/JITTests
llvm-svn: 98447
2010-03-13 20:09:55 +00:00
Nick Lewycky 84189ab22b Teach this test not to leak. Also, clean up all the cast<BinaryOperator> cruft.
llvm-svn: 98446
2010-03-13 19:58:26 +00:00
Daniel Dunbar 144873437c llvm-mc: Delete output files on error.
llvm-svn: 98445
2010-03-13 19:31:47 +00:00
Daniel Dunbar 906a432031 MC/X86_64: Fix matching of leaq.
llvm-svn: 98444
2010-03-13 19:31:44 +00:00
Daniel Dunbar e60c883bf4 MC/X86_64: Fix matching of callq.
llvm-svn: 98443
2010-03-13 19:31:38 +00:00
Chris Lattner 341b1d25f1 add a hack to allow parsing negative minint. rdar://7751341
llvm-svn: 98442
2010-03-13 19:25:13 +00:00
Chris Lattner 10ebb68a49 add builder support for mcsymbol operands.
llvm-svn: 98434
2010-03-13 08:16:25 +00:00
Chris Lattner 6c604e3f94 add support for MCSymbols as operands to MachineInstrs.
llvm-svn: 98433
2010-03-13 08:14:18 +00:00
Chris Lattner 41e275dc8e simplify EmitFrameMoves to take BaseLabel in as a symbol
instead of as a stem+idx pair, simplify the "is a new 
location" check to use symbol comparison.

llvm-svn: 98432
2010-03-13 08:05:25 +00:00
Chris Lattner 5bb8207c13 simplify some overly general code. The stack always grows down on x86.
llvm-svn: 98431
2010-03-13 08:04:35 +00:00
Benjamin Kramer 13f4db8c29 Fix another warning. There is a functionality change but I believe it's correct.
llvm-svn: 98430
2010-03-13 07:50:22 +00:00
Chris Lattner 8811e12314 factor some labels, simplify some code.
llvm-svn: 98429
2010-03-13 07:40:56 +00:00
Benjamin Kramer e5b2c1d9be Add some parens and silence a warning.
llvm-svn: 98428
2010-03-13 07:40:34 +00:00
Bob Wilson f1e8f7ff7d Attempt to appease the arm-linux buildbot by fixing the JIT encodings for new
base register updating load/store-multiple instructions.

llvm-svn: 98427
2010-03-13 07:34:35 +00:00
Chris Lattner 2c3f478c0b various cleanups.
llvm-svn: 98426
2010-03-13 07:26:18 +00:00
Daniel Dunbar 34b8e553ea MC/Mach-O: PCrel relocations weren't using the right base address, they are
relative to the fragment address, not its offset. This was masked by the text
section normally being at address 0.

llvm-svn: 98420
2010-03-13 02:38:00 +00:00
Daniel Dunbar 322fec671b llvm-mc: Support -n, useful for comparing -integrated-as output since the
compiler may not lead with the text section.

llvm-svn: 98418
2010-03-13 02:20:57 +00:00
Daniel Dunbar 4689211583 llvm-mc: Support -arch as a simplified form of -triple.
llvm-svn: 98417
2010-03-13 02:20:38 +00:00
Evan Cheng 2a65429671 Fix a typo in ValueTracking that's causing instcombine to delete needed shift instructions.
llvm-svn: 98416
2010-03-13 02:20:29 +00:00
Chris Lattner b7aa9527ef reimplement the string pool used for inlined function
entries to not thrash std::strings and MCSymbols.

llvm-svn: 98415
2010-03-13 02:17:42 +00:00
Jeffrey Yasskin 61e710c2fd Remove the last memory leak from the VMCore unit tests.
Tested: valgrind --leak-check=full unittests/VMCore/Debug/VMCoreTests
llvm-svn: 98414
2010-03-13 02:15:08 +00:00
Chris Lattner 81fe45d911 switch to the text section at the start of the .s file for darwin/x86
targets.  This is a temporary hack for the .o file writer that Daniel
wants :)

llvm-svn: 98413
2010-03-13 02:10:00 +00:00
Jeffrey Yasskin 3d73d1a73c Remove a memory leak from MetadataTest.
Tested: valgrind --leak-check=full unittests/VMCore/Debug/VMCoreTests
llvm-svn: 98412
2010-03-13 01:39:20 +00:00
Jeffrey Yasskin 5a952b1339 Remove a memory leak from VerifierTest.
Tested: valgrind --leak-check=full unittests/VMCore/Debug/VMCoreTests
llvm-svn: 98411
2010-03-13 01:34:56 +00:00
Jeffrey Yasskin 2cc2476198 Delete MDNodes when LLVMContext is destroyed. Previous attempts: r97918, r97788.
Tested: clang debug bootstrap, llvm-gcc bootstrap, `make check-lit`
after configuring with --with-llvmgccdir (and this did run the
FrontendC* tests this time)

llvm-svn: 98410
2010-03-13 01:26:15 +00:00
Bob Wilson 947f04bad0 Change ARM ld/st multiple instructions to have variant instructions for
writebacks to the address register.  This gets rid of the hack that the
first register on the list was the magic writeback register operand.  There
was an implicit constraint that if that operand was not reg0 it had to match
the base register operand.  The post-RA scheduler's antidependency breaker
did not understand that constraint and sometimes changed one without the
other.  This also fixes Radar 7495976 and should help the verifier work
better for ARM code.

There are now new ld/st instructions explicit writeback operands and explicit
constraints that tie those registers together.

llvm-svn: 98409
2010-03-13 01:08:20 +00:00
Devang Patel 93142469ac Do not ignore arg_size() impact while counting bb instructions.
llvm-svn: 98408
2010-03-13 01:05:02 +00:00
Daniel Dunbar 18fc344290 MC/X86: Add temporary hack to match shrl $1,%eax correctly, to support testing
other functionality on 403.gcc compiled at -O0.

llvm-svn: 98405
2010-03-13 00:47:29 +00:00
Daniel Dunbar b86672059e MC/X86: Add an XFAIL test where we aren't matching the correct instruction
because we don't understand how the specific instruction is doing sign
extension.

llvm-svn: 98404
2010-03-13 00:47:25 +00:00
Devang Patel 877d0355bd Remove extra parameter.
llvm-svn: 98403
2010-03-13 00:45:31 +00:00
Bob Wilson 53149401ee Combine the code to build VLDM and VSTM instructions, since they are
mostly the same.

llvm-svn: 98402
2010-03-13 00:43:32 +00:00
Devang Patel ad591dc6af Do not overestimate code size reduction in presense of debug info.
Use CodeMetrics.analyzeBasicBlock() to estimate BB size.

llvm-svn: 98401
2010-03-13 00:10:20 +00:00
Bob Wilson af10d27d80 Tidy up. No functional changes.
llvm-svn: 98398
2010-03-12 22:50:09 +00:00
Daniel Dunbar 12f1e32d59 MC/Mach-O: Implement initial support for relaxation.
- The implementation is currently very brain dead and inefficient, but I have a
   clear plan on how to fix it.

 - The good news is, it works and correctly assembles 403.gcc (when built with
   Clang, at '-Os', '-Os -g', and '-O3'). Even better, at '-Os' and '-Os -g',
   the resulting binary is exactly equivalent to that when built with the system
   assembler. So it probably works! :)

llvm-svn: 98396
2010-03-12 22:07:14 +00:00
Bob Wilson 27cce1c0b6 Remove obsolete comments. VLDM is implemented in ARMInstrVFP.td.
llvm-svn: 98395
2010-03-12 22:00:08 +00:00
Jeffrey Yasskin 9eeda13a52 Fix LLVM build when the user specifies CPPFLAGS on the make command line.
llvm-svn: 98394
2010-03-12 21:42:14 +00:00
Chris Lattner 5ea039ad5c remove gone method, grr symlinks.
llvm-svn: 98392
2010-03-12 21:30:49 +00:00
Chris Lattner 013f794dc0 remove special case code that isn't needed anymore.
llvm-svn: 98391
2010-03-12 21:21:19 +00:00
Chris Lattner 0b822ab447 inline GetGlobalValueSymbol into the rest its callers and
remove it.

llvm-svn: 98390
2010-03-12 21:19:23 +00:00
Chris Lattner 9e4cafe6f1 inline the now-trivial implementation of GetGlobalValueSymbol into
some of its callers.

llvm-svn: 98388
2010-03-12 21:09:07 +00:00
Chris Lattner e80055f8fc eliminate the X86 version of GetGlobalValueSymbol, allowing
it to be non-virtual and soon disappear.

llvm-svn: 98387
2010-03-12 21:06:41 +00:00
Chris Lattner d3ca1e2854 prune #includes, this file should be removed pending hte cygwin stub issue being resolved.
llvm-svn: 98386
2010-03-12 21:04:31 +00:00
Chris Lattner 8d99c764d3 move fastcall/stdcall mangling up into Mangler.
llvm-svn: 98384
2010-03-12 21:03:47 +00:00
Daniel Dunbar ea9e2f8a15 MC: Factor out MCAssembler::EvaluateFixup, and simplify.
llvm-svn: 98381
2010-03-12 21:00:49 +00:00
Daniel Dunbar 968b36a0bd MC: Constify MCAsmLayout argument to MCExpr::EvaluteAs...
llvm-svn: 98380
2010-03-12 21:00:45 +00:00
Daniel Dunbar 921e79f5eb MC: Add MCAssembler::addFixup, which enforces that fixups are added in order.
llvm-svn: 98379
2010-03-12 21:00:38 +00:00
Chris Lattner c7b46f9d9c give Mangler access to TargetData.
llvm-svn: 98378
2010-03-12 20:47:28 +00:00
Chris Lattner 892ac21f06 make DecorateCygMingName a static method.
llvm-svn: 98377
2010-03-12 20:43:52 +00:00
Benjamin Kramer a956527c92 Add a virtual destructor and give vtable a home.
llvm-svn: 98376
2010-03-12 20:41:29 +00:00
Chris Lattner 74026ffcae minor tidying, only do work if a function is
actually X86_StdCall or X86_FastCall.

llvm-svn: 98374
2010-03-12 19:48:03 +00:00
Chris Lattner e397df7af0 eliminate the string form of DecorateCygMingName
llvm-svn: 98373
2010-03-12 19:42:40 +00:00
Chris Lattner c795a5235f remove the FnArgWords cache to make way for future changes.
llvm-svn: 98372
2010-03-12 19:31:03 +00:00
Bill Wendling 3d0cd822a9 Add a beta-test for placing the LSDA into the TEXT section on X86.
llvm-svn: 98370
2010-03-12 19:20:40 +00:00
Devang Patel d19e302f77 Fix llc crash on invalid input.
llvm-svn: 98369
2010-03-12 19:18:30 +00:00
Chris Lattner 8abe1ce883 Remove some dead code. This method only gets called on
definitions.

llvm-svn: 98368
2010-03-12 19:14:18 +00:00
Chris Lattner 6428db5089 use Mang->getSymbol instead of duplicating the logic, reduce indentation.
llvm-svn: 98367
2010-03-12 19:04:14 +00:00
Chris Lattner be3242b523 finally give Mangler a getSymbol method, which returns an MCSymbol
for a global instead of messing around with string buffers.

llvm-svn: 98366
2010-03-12 18:55:20 +00:00
Chris Lattner 45ec3f8944 remove dead code.
llvm-svn: 98365
2010-03-12 18:49:32 +00:00
Chris Lattner d75813970a simplify code to use OutContext.GetOrCreateTemporarySymbol with
no arguments instead of having to come up with a unique name.
This also makes the code less fragile.

llvm-svn: 98364
2010-03-12 18:47:50 +00:00
Chris Lattner 2eff505fba make the mangler take an MCContext instead of an MAI.
No functionality change.

llvm-svn: 98363
2010-03-12 18:44:54 +00:00
Chris Lattner ac77bf5d1e remove MAI argument from createAsmStreamer since it
can get it from the context now.

llvm-svn: 98361
2010-03-12 18:28:53 +00:00
Chris Lattner 77b0a2ee03 fix a bug emitting .secrel32 that I introduced, PR6587, patch
by A.Mazur!

llvm-svn: 98360
2010-03-12 18:10:35 +00:00
Duncan Sands 8c35506fbd When constant folding GEP of GEP, do not crash if an index of
the inner GEP is not a ConstantInt.

llvm-svn: 98359
2010-03-12 17:55:20 +00:00
Jeffrey Yasskin 35b4e4f641 Free DbgScopes in DwarfDebug::endFunction(). Also increased the const-ness of
several fields to make it easier to figure out where bugs might be creeping in.

llvm-svn: 98358
2010-03-12 17:45:06 +00:00
Duncan Sands 03fcbcf407 Revert turning copysignl into a COPYSIGN node for the moment:
ppc calls copysignl with a 128 bit ppc long double, resulting
in a node that the type legalizer doesn't know how to expand.

llvm-svn: 98357
2010-03-12 17:41:34 +00:00
Kovarththanan Rajaratnam 61bea8fe0b Remove superfluous NULL assignment
llvm-svn: 98350
2010-03-12 14:17:24 +00:00
Benjamin Kramer d69ee90f2f Use StringRef::substr instead of std::string::substr to avoid using a free'd
string temporary. This should fix PR6590.

llvm-svn: 98349
2010-03-12 13:54:59 +00:00
Duncan Sands 607f1825b0 Now that it's supported, turn copysignl into a COPYSIGN node.
llvm-svn: 98348
2010-03-12 12:13:59 +00:00
Duncan Sands 4c55f76936 Fix PR6522: implement copysign expansion for x86 long double
(it seems that FreeBSD doesn't have copysignl).  Done by
removing a bunch of assumptions from the code.  This may also
help with sparc 128 bit floats.

llvm-svn: 98346
2010-03-12 11:45:06 +00:00
Benjamin Kramer 7b88a49f3e Factor checked library call optimization into a common helper class and use it
to unify the almost identical code in CodeGenPrepare and InstCombineCalls.

llvm-svn: 98338
2010-03-12 09:27:41 +00:00
Chris Lattner 53ebf8a7ca fix PR6577, a bug in sdbuilder lowering select instructions
whose true value was not Val#0.

llvm-svn: 98336
2010-03-12 07:15:36 +00:00
Chris Lattner 399f1f4fd3 update mkpatch for MC, patch by Aaron Gray
llvm-svn: 98334
2010-03-12 06:32:12 +00:00
Bill Wendling dd3fe94336 The same situation that effected ARM effects PPC with regards to placing the
LSDA into the TEXT section. We need to generate non-lazy pointers to it on
Mach-O. However, the object the NLP points to may be local to the translation
unit. If so, then the NLP needs to have the value of that object specified
instead of "0", which the linker interprets as "external".

llvm-svn: 98325
2010-03-12 02:00:43 +00:00
Chris Lattner 47bef1a8a2 make TargetLoweringObjectFile::getExprForDwarfReference
just make unnamed temp symbols instead of having to come
up with its own names.

llvm-svn: 98324
2010-03-12 01:56:43 +00:00
Devang Patel f5c2a6b371 There is no need to create specification DIE for definitions at DIFile level.
llvm-svn: 98302
2010-03-11 23:44:52 +00:00
Bill Wendling faec0815a3 MC-ize PPC's asm printing of stubs.
llvm-svn: 98300
2010-03-11 23:39:44 +00:00
Nate Begeman 2e41605d4f Whoops this already existed.
llvm-svn: 98297
2010-03-11 23:21:19 +00:00
Nate Begeman 5daa235c91 Add a handful of additional useful pass manager things to the C API
llvm-svn: 98296
2010-03-11 23:06:07 +00:00
Jakob Stoklund Olesen cdb31d313f Extract methods from LocalRewriter::RewriteMBB bringing it down to 666 lines.
llvm-svn: 98295
2010-03-11 23:04:34 +00:00
Chris Lattner d3691dd04b enhance MCContext::GetOrCreateTemporarySymbol() to create a new symbol
with an arbitrary unique name.

llvm-svn: 98294
2010-03-11 22:56:10 +00:00
Chris Lattner 768ea2add2 change MCContext to always have an MCAsmInfo.
llvm-svn: 98293
2010-03-11 22:53:35 +00:00
Chris Lattner 03627cb12c fix a fixme in TargetLoweringObjectFile::getExprForDwarfReference
where we used ot create an MCSymbol for ".".  Now emit an assembler
temporary label and reference it instead of "." textually.

rdar://7739457

llvm-svn: 98292
2010-03-11 21:55:20 +00:00
Dan Gohman 576aec4363 Remove getWidenVectorType, which is no longer used.
llvm-svn: 98289
2010-03-11 21:39:57 +00:00
Chris Lattner 216e7299d7 empty symbols aren't possible, the mcsymbol ctor aborts on them.
llvm-svn: 98288
2010-03-11 21:38:58 +00:00
Johnny Chen c1d1229d78 Set the (Format)F filed of t2Int_MemBarrierV7 & t2Int_SyncBarrierV7 to ThumbFrm,
instead of Pseudo, which helps Thumb decoder to recognize them as Thumb instr.

llvm-svn: 98285
2010-03-11 21:02:50 +00:00
Benjamin Kramer 2fc395659c stpcpy is so similar to strcpy, it doesn't deserve a complete copy of the __strcpy_chk -> strcpy code.
llvm-svn: 98284
2010-03-11 20:45:13 +00:00
Bill Wendling 00810c39da revert r98270.
llvm-svn: 98281
2010-03-11 19:50:31 +00:00
Chris Lattner 2562356992 rename getSymbolForDwarf* to getExprForDwarf* since it returns
an MCExpr and not an MCSymbol.  Change it to take an MCStreamer,
which is currently unused.

No functionality change.

llvm-svn: 98278
2010-03-11 19:41:58 +00:00
Evan Cheng 180704dd1d In case of tail call size of Ins and InVals may not match.
llvm-svn: 98277
2010-03-11 19:38:18 +00:00
Eric Christopher 607de1de53 Lower stpcpy_chk when possible.
llvm-svn: 98274
2010-03-11 19:24:34 +00:00
Evan Cheng 31fe835bf2 Bad bad bug. x86 force indirect tail call address into eax when it's meant to force it into a call preserved register instead. Change it to ecx for now.
llvm-svn: 98270
2010-03-11 18:49:14 +00:00
Richard Osborne 7aa06ac2b9 Remove dead code. (S|U)MUL_LO is now lowered to LMUL or MACC(S|U)
llvm-svn: 98269
2010-03-11 18:38:59 +00:00
Jeffrey Yasskin 0708de1f97 Avoid leaking CompileUnits in DwarfDebug.cpp.
llvm-svn: 98268
2010-03-11 18:29:55 +00:00
Daniel Dunbar 64b408b124 MC/Mach-O: Add MCSymbolData::getAddress() utility.
llvm-svn: 98266
2010-03-11 18:22:51 +00:00
Eric Christopher 103e3ef893 Fix typo.
llvm-svn: 98260
2010-03-11 17:45:38 +00:00
Richard Osborne 4780109254 Add dag combine to simplify lmul(x, 0, a, b)
llvm-svn: 98258
2010-03-11 16:26:35 +00:00
Richard Osborne 29ffbf123f Switch XCore over to using inline jump table entries.
llvm-svn: 98256
2010-03-11 14:58:56 +00:00
Richard Osborne 6d3e92dfee Add a new jump table encoding to indicate jump tables entries
are inside the function by the target at the point of use.

llvm-svn: 98255
2010-03-11 14:58:16 +00:00
Evan Cheng 8c4df8160e The check for coalescing a virtual register to a physical register, e.g.
cl = EXTRACT_SUBREG reg1024, 1, is overly conservative. It should check
for overlaps of vr's live interval with the super registers of the
physical register (ECX in this case) and let JoinIntervals() handle checking
the coalescing feasibility against the physical register (cl in this case).

llvm-svn: 98251
2010-03-11 08:20:21 +00:00
Ted Kremenek a3b221f9a9 Update CMake build.
llvm-svn: 98250
2010-03-11 07:51:23 +00:00
Eric Christopher 304f13c637 Have fast-isel understand llvm.objectsize. Update testcase for slightly
different codegen.

llvm-svn: 98244
2010-03-11 06:20:22 +00:00
Jeffrey Yasskin 0069d72c05 Make clang bootstrap happier on OSX 10.5 by reducing the number of headers
included when using global symbols to ask the linker for the addresses of
various functions.  One of the symbols was actually getting declared by a
header included in DynamicLibrary.cpp, which conflicted with the "extern void*"
declaration in SearchForAddressOfSpecialSymbol().

llvm-svn: 98243
2010-03-11 06:14:32 +00:00
Daniel Dunbar 5c5228a8f6 MC/Mach-O: Implement "absolutizing" semantics of .set, by evaluating the assembly time value of variables.
llvm-svn: 98241
2010-03-11 05:53:37 +00:00
Daniel Dunbar cf55f96214 MC/Mach-O: Start passing in the basic MCAsmLayout object.
- Also, drop the current location part of AsmLayout, I think I prefer to implement this via explicit symbols.

llvm-svn: 98240
2010-03-11 05:53:33 +00:00
Eric Christopher 4b7948e09e Do some final lowering in CodeGenPrepare of _chk calls similar to
that in InstCombineCalls.

More call lowering needed.

llvm-svn: 98228
2010-03-11 02:41:03 +00:00
Daniel Dunbar ac8a95498a MC: Sketch initial MCAsmLayout class, which encapsulates the current layout of an assembly file. The MCAsmLayout is also available for use by MCExpr::EvaluateAs{Absolute,Relocatable}, to allow target specific hooks and "absolutizing" of symbols.
llvm-svn: 98227
2010-03-11 02:28:59 +00:00
Daniel Dunbar bd01967261 Fix (unused) RegisterAsmBackend template, clang++ isn't happy about this.
llvm-svn: 98226
2010-03-11 02:28:52 +00:00
Daniel Dunbar 84b5ddc872 Remove dead include.
llvm-svn: 98225
2010-03-11 02:28:48 +00:00
Dale Johannesen 197bd3eee9 Fix debug_value handling.
llvm-svn: 98224
2010-03-11 02:10:24 +00:00
Daniel Dunbar c5ddbad237 MC: Provide MCAssembler with a TargetAsmBackend.
llvm-svn: 98222
2010-03-11 01:34:27 +00:00
Daniel Dunbar 77c4141c8f MC: Sketch some TargetAsmBackend hooks we are going to need.
llvm-svn: 98221
2010-03-11 01:34:21 +00:00
Daniel Dunbar 245f5b2810 MC: Provide the target triple to AsmBackend constructors.
llvm-svn: 98220
2010-03-11 01:34:16 +00:00
Eric Christopher 43dc11c525 Add strncpy libcall creator. Use it when it should be used.
llvm-svn: 98219
2010-03-11 01:25:07 +00:00
Bill Wendling e8e79524d2 When outputing a non-lazy pointer for a stub, we may need to fill in the value
for the NLP because the object it's pointing to may be internal to the file.

This seems counter-intuitive, but bear with me. When we place the LSDA into the
TEXT section, the type info pointers need to be indirect and pc-rel. We
accomplish this by using NLPs. However, sometimes the types are local to the
file. GCC gets around this by not using a NLP in this case, but a "regular"
indirection like this:

GCC_except_tbl:
  .long Lfoo-.

__ZTIA:  @ This is local
  ...

Lfoo:
  .long __ZTIA

LLVM prefers NLPs on Darwin. In fact, it's more optimal for load performance to
use them.

llvm-svn: 98218
2010-03-11 01:18:13 +00:00
Johnny Chen f5e81aeba5 Added Thumb2 LDRD/STRD pre/post variants for disassembly only.
Plus fixed the encoding of t2LDRDpci such that P = 1 and W = 0 (offset mode).

llvm-svn: 98217
2010-03-11 01:13:36 +00:00
Dale Johannesen 28492aa626 Make sure HasDebugValue is initialized. This should fix
the buildbot running valgrind.

llvm-svn: 98216
2010-03-11 00:52:12 +00:00
Bob Wilson 1b0e614b10 Fix ARM buildbot breakage.
llvm-svn: 98215
2010-03-11 00:46:22 +00:00
Chris Lattner a179e4d0a8 add support, testcases, and dox for the new GHC calling
convention.  Patch by David Terei!

llvm-svn: 98212
2010-03-11 00:22:57 +00:00
Bob Wilson c499fae068 Lower small memcpys to load/stores on Thumb2.
Radar 7686922.

llvm-svn: 98210
2010-03-11 00:20:49 +00:00
Jakob Stoklund Olesen 7bbe14337b VirtRegRewriter spring cleaning. No functional change.
Move methods out of line and M-x whitespace-cleanup.
Promote common method arguments to member variables.

llvm-svn: 98207
2010-03-11 00:11:33 +00:00
Chris Lattner 963b233f2c Work around a bug in the openbsd assembler on i386,
which doesn't support .quad correctly because it is
"really really old".  PR6528.

Yet another reason the mc assembler should take over ;-)

llvm-svn: 98205
2010-03-11 00:06:19 +00:00
Chris Lattner 4ec0b670d5 fix PR6533 by updating the br(xor) code to remember the case
when it looked past a trunc.

llvm-svn: 98203
2010-03-10 23:46:44 +00:00
Dale Johannesen 29108f0b6c Cosmetic: lengthen names and improve comments.
llvm-svn: 98202
2010-03-10 23:37:24 +00:00
Bob Wilson c4ceb1e2f8 Fix an obvious typo in an assert.
Patch by Sean Callanan.

llvm-svn: 98200
2010-03-10 22:38:45 +00:00
Bill Wendling a810bdfcca Add a bit along with the MCSymbols stored in the MachineModuleInfo maps that
indicates that an MCSymbol is external or not. (It's true if it's external.)
This will be used to specify the correct information to add to non-lazy
pointers. That will be explained further when this bit is used.

llvm-svn: 98199
2010-03-10 22:34:10 +00:00
Dale Johannesen 49de0607a8 Progress towards shepherding debug info through SelectionDAG.
No functional effect yet.  This is still evolving and should
not be viewed as final.

llvm-svn: 98195
2010-03-10 22:13:47 +00:00
Chris Lattner 1f6689a8ba move PR6576 here.
llvm-svn: 98194
2010-03-10 21:42:42 +00:00
Chris Lattner 0c48de0d62 add DESTDIR support for TOOLALIAS, for PR6557, patch by
Matthias Klose!

llvm-svn: 98193
2010-03-10 21:27:53 +00:00
Dan Gohman 703b12d62f Fix another bitwidth calculation to handle vector types; based on a
patch by Micah Villmow for PR6572.

llvm-svn: 98188
2010-03-10 21:04:53 +00:00
Daniel Dunbar dc765e9f03 MC/Mach-O: Use the MCAssembler symbol map instead of reconstructing.
llvm-svn: 98187
2010-03-10 20:58:31 +00:00
Daniel Dunbar 6eab721011 MC: Move the backend section and symbol data maps to MCAssembler.
llvm-svn: 98186
2010-03-10 20:58:29 +00:00
Daniel Dunbar bf801a559a Remove unneeded declarations.
llvm-svn: 98185
2010-03-10 20:58:25 +00:00
Jim Grosbach f0a7e8e77d Make sure the LR gets pushed in functions that use vaargs. This fixes
400.perlbench for the nightly tests.

llvm-svn: 98183
2010-03-10 20:01:30 +00:00
Jim Grosbach 77f781405d comment why we use custom epilogue for t1 functions using vaargs.
llvm-svn: 98182
2010-03-10 19:59:47 +00:00
Dale Johannesen e9b361b2e6 Fix another place where DEBUG_VALUE affected codegen.
llvm-svn: 98181
2010-03-10 19:57:56 +00:00
Dan Gohman 2734ebd37f Add a DominatorTree argument to isLCSSA so that it doesn't have to
compute a set of reachable blocks for itself each time it is called, which
is fairly frequently.

llvm-svn: 98179
2010-03-10 19:38:49 +00:00
Dan Gohman 474e488c06 Constant-fold GEP-of-GEP into a single GEP.
llvm-svn: 98178
2010-03-10 19:31:51 +00:00