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47621 Commits

Author SHA1 Message Date
Charles Davis
88c816453f Add the suffix to the Win64 EH data sections' names if given. Add a test for 
this. XFAIL'd, because the COFF AsmParser can't handle .section yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132220 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 21:38:47 +00:00
Nadav Rotem
2d6dcb34b7 Refactor getActionType and getTypeToTransformTo ; place all of the 'decision' 
code in one place. Re-apply 131534 and fix the multi-step promotion of integers.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132217 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 21:03:13 +00:00
Eli Friedman
dda266d4ce Attempt to preserve debug line info in LICM; as the comment in the code says, it's hard to pick good line numbers for this transformation, but something is better than nothing. 
rdar://9143729



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132215 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 20:31:51 +00:00
Evan Cheng
4abce0c90b Don't use movw / movt for iOS static codegen for now to workaround some tools issues. rdar://9514789 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132211 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 20:11:27 +00:00
Chad Rosier
4591193b8d CRC32 intrinsics were renamed at revision 132163. This submission 
fixes aliasing issues with the old and new names as well as adds test
cases for the auto-upgrader.
Fixes rdar 9472944.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132207 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 19:38:10 +00:00
Devang Patel
045c1d4e48 Keep this simple. Use DIType to get signness and size of a type. Based on size, select appropraite form. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132206 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 19:13:26 +00:00
Charles Davis
7b06b7357a Add a parameter to the Win64 EH section getters to get a section with a 
suffix (e.g. .xdata$myfunc). The suffix part isn't implemented yet, but
I'll get to it in the next patch.

Fix up all callers of the affected functions. Make them pass said suffix to
the function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132205 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 19:09:24 +00:00
Dan Gohman
cc1ffc6652 Update this comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132202 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:42:33 +00:00
Eli Friedman
30a121b4e8 Don't sink or hoist debug info instrinsics; it isn't useful. This also prevents LICM sinking from erasing debug intrinsics which don't dominate any exit block of the loop. 
rdar://9143943 .



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132201 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:37:52 +00:00
John McCall
a3de16bc8f Fix the inliner to maintain the current de facto invoke semantics: 
- the selector for the landing pad must provide all available information
    about the handlers, filters, and cleanups within that landing pad
  - calls to _Unwind_Resume must be converted to branches to the enclosing
    lpad so as to avoid re-entering the unwinder when the lpad claimed it
    was going to handle the exception in some way
This is quite specific to libUnwind-based unwinding.  In an effort to not
interfere too badly with other unwinders, and with existing hacks in frontends,
this only triggers on _Unwind_Resume (not _Unwind_Resume_or_Rethrow) and does
nothing with selectors if it cannot find a selector call for either lpad.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132200 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:34:38 +00:00
Jakob Stoklund Olesen
11f6cc96bf Delete MethodBodies that only filtered reserved registers. 
The register allocators know to filter reserved registers from the allocation
orders, so we don't need all of this boilerplate.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132199 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:27:13 +00:00
Devang Patel
72f0d9cdef Handle signed types gracefully. 
This fixes regressions reported by buildbots as a fallout of r132193.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132197 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:15:52 +00:00
Eli Friedman
c955d212a8 Oops, wasn't intending to commit this. Partial revert of r132194. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132195 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:04:04 +00:00
Eli Friedman
a4d487fc1e Fix a silly mistake (which trips over an assertion) in r132099. rdar://9515076 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132194 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 18:02:04 +00:00
Devang Patel
b58128e2b2 Select DW_AT_const_value size based on variable size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132193 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 16:45:18 +00:00
Rafael Espindola
25b15d8502 Remove DwarfRegNum from the individual bits of the condition register. 
These should be DW_OP_bit_piece of CR (64).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132192 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 16:15:27 +00:00
Rafael Espindola
81a2745830 Remove DwarfRegNum from CARRY. I should be encoded with DW_OP_bit_piece. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132190 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 16:01:08 +00:00
Charles Davis
07cbe23173 Assorted fixes for Win64 EH unwind info emission: 
- Flip order of bitfields. This gets our output matching GAS.
- Handle case where the end of the prolog wasn't specified.
- If the resulting unwind info struct is less than 8 bytes, pad to 8 bytes.

Add a test for the latter two.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132188 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 15:10:25 +00:00
Rafael Espindola
81e193cc1f Remove dwarf numbers from subregs. We should use DW_OP_bit_piece to 
refer to them.

I tested this with both check-all and the gdb testsuite.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132187 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 15:08:24 +00:00
Benjamin Kramer
17c1bb5d55 InstCombine: Make switch folding with equality compares more aggressive by trying instsimplify on the arm where we know the compared value. 
Stuff like "x == y ? y : x&y" now folds into "x&y".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132185 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 13:00:16 +00:00
Cameron Zwarich
f031d0977f Fix PR10029 - VerifyCoalescing failure on patterns_dfa.c of 445.gobmk. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132181 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 05:04:51 +00:00
Eric Christopher
33281b2361 Make the branch encoding for tBcc more obvious that it's a 4-byte opcode 
followed by a conditional and imm8.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132179 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 03:50:53 +00:00
Eric Christopher
86bbcbf4b0 Fix comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132178 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 03:46:51 +00:00
Charles Davis
c4cbf9b6aa Start keeping track of where the various unwind instructions are in the prolog. 
Use them to calculate the offset inside the prolog. Emit this value when
emitting the unwind codes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132177 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 03:25:01 +00:00
Charles Davis
ef60724ddc Add missing break statements. Align UNWIND_INFO and RUNTIME_FUNCTION structs 
to 4 bytes.

I'm surprised no one caught the missing break statements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132176 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 02:43:19 +00:00
Charles Davis
4eeb7b662b My attempt at fixing the leak reported by the valgrind buildbots. Valgrind will 
still report leaks, but they're spurious now. Valgrind cannot peer into
std::vector objects--or any dynamic array, for that matter--because it doesn't
know how big the array is.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132174 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 02:01:08 +00:00
Charles Davis
c2d3022aa6 Fix inverted conditional in SaveReg and SaveXMM. Err when the frame pointer is 
already defined, and err when the PushMachFrame operation isn't the first
operation (if specified at all).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132173 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 01:42:17 +00:00
Eli Friedman
1a24bf0cf9 One more debug line number miss in instcombine (although the code in question isn't actually in instcombine). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132170 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 01:00:36 +00:00
Eli Friedman
a311c34d2a Final step of instcombine debuginfo; switch a couple more places over to InsertNewInstWith, and use setDebugLoc for the cases which can't be easily handled by the automated mechanisms. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132167 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-27 00:19:40 +00:00
Chandler Carruth
b29c1d731a Fix warning about || and && without explicit grouping. 
This looks like it flagged an actual bug. Devang, please review. I added
the parentheses that change behavior, but make the behavior more closely
match commit log's intent.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132165 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:37:58 +00:00
Devang Patel
77ba0164fe Do not insert anything after terminator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132164 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:16:48 +00:00
Chad Rosier
62660310d9 Renamed llvm.x86.sse42.crc32 intrinsics; crc64 doesn't exist. 
crc32.[8|16|32] have been renamed to .crc32.32.[8|16|32] and
crc64.[8|16|32] have been renamed to .crc32.64.[8|64].




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132163 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 23:13:19 +00:00
Devang Patel
9dd19667fb Do not move DBG_VALUE in middle of PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132161 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 22:43:14 +00:00
Devang Patel
97de92c08d If llvm.dbg.value and the value instruction it refers to are far apart then iSel may not be able to find corresponding Node for llvm.dbg.value during DAG construction. Make iSel's life easier by removing this distance between llvm.dbg.value and its value instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132151 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:51:06 +00:00
Devang Patel
95ba669e09 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132149 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:49:28 +00:00
Devang Patel
785badb83e During branch folding avoid inserting redundant DBG_VALUE machine instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132148 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 21:47:59 +00:00
Akira Hatanaka
33458fedb6 Use MachineFrameInfo::hasCalls instead of MipsFunctionInfo::hasCall to check if 
a function has any function calls.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132140 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 20:30:31 +00:00
Rafael Espindola
a5e62019d7 Fix some dwarf register numbers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132136 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 19:25:47 +00:00
Rafael Espindola
c9687b32fa Fix LTO builds with xcode 4. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132132 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:59:54 +00:00
Akira Hatanaka
cf0cd8005c Add support for C++ exception handling. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132131 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:59:03 +00:00
Eric Christopher
32bfb2c513 Reorganize these slightly according to operand type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132128 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:22:26 +00:00
Akira Hatanaka
78e72d60ec Set HasSetDirective to true. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132127 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 18:16:18 +00:00
Charles Davis
cfb2bbba73 Revert r132111. I built Release (without Asserts), so I didn't know about the 
assert that prevented setting alignment on section creation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132113 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 05:35:55 +00:00
Charles Davis
fad99ae6e7 Align Win64 EH Table sections to 4 bytes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132111 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 05:19:54 +00:00
Stuart Hastings
2aa0f23e1c Reverting 132105: it broke some LLVM-GCC DejaGNU tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132108 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 04:09:49 +00:00
Cameron Zwarich
421b106872 Mark tBX as an indirect branch rather than a return. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132107 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 03:41:12 +00:00
Charles Davis
ca93138e11 Test .seh_startchained and .seh_endchained parsing. 
Rework how the MCWin64EHUnwindInfo instances are stored. Fix issues with
chained unwind areas exposed by the test that were related to this.

The ChainedParent field had the wrong address, because when the chained unwind
info was added, the addresses shifted around. Now we store the pointers to the
structures, which are now allocated from the MC heap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132106 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 02:45:47 +00:00
Stuart Hastings
aa4e6afc9b Correctly handle a one-word struct passed byval on x86_64. 
rdar://problem/6920088


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132105 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 02:44:56 +00:00
Andrew Trick
fcdc9a44e5 indvars: incremental fixes for -disable-iv-rewrite and testcases. 
Use a proper worklist for use-def traversal without holding onto an
iterator. Now that we process all IV uses, we need complete logic for
resusing existing derived IV defs. See HoistStep.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132103 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-26 00:46:11 +00:00
Jakob Stoklund Olesen
b8d936bc17 Add a RAGreedy::canEvict function. 
This doesn't change functionality (much), but it allows for a more fine-grained
eviction policy. The current policy only compares spill weights, and that is not
always the best thing to do.  Spill weights are designed to serve linear scan,
and they don't consider live range splitting.

Add a mechanism so canEvict() can request that a live range be evicted and
split/spilled. This is to avoid infinite eviction loops.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132101 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:58:36 +00:00
Eli Friedman
76927d7303 Rewrite fast-isel integer cast handling to handle more cases, and to be simpler and more consistent. 
The practical effects here are that x86-64 fast-isel can now handle trunc from i8 to i1, and ARM fast-isel can handle many more constructs involving integers narrower than 32 bits (including loads, stores, and many integer casts).

rdar://9437928 .



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132099 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:49:02 +00:00
Akira Hatanaka
37d22d92df Define WeakRefDirective. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132098 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:30:30 +00:00
Eli Friedman
a831a9b972 PR9998: ashr exact %x, 31 is not equivalent to sdiv exact %x, -2147483648. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132097 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 23:26:20 +00:00
Devang Patel
8a115d5bf4 Remove unused statistical counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132087 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:55:40 +00:00
Cameron Zwarich
ad70f6d2b1 Convert tBX_CALL / tBXr9_CALL to actual pseudoinstructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132086 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:53:50 +00:00
Charles Davis
410ef2b263 Add tests for .seh_setframe and .seh_handlerdata parsing. Fix issues with 
them.

I had to add a special SwitchSectionNoChange method to MCStreamer just for
.seh_handlerdata. If this isn't OK, please let me know, and I'll find some
other way to fix .seh_handlerdata streaming.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132084 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:43:45 +00:00
Eric Christopher
7bb1c40549 Clean up comment a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132083 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 21:19:19 +00:00
Eric Christopher
8f89463894 Implement the 'm' modifier. Note that it only works for memory operands. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132081 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 20:51:58 +00:00
Akira Hatanaka
d85b3ecbb3 Remove MipsTargetLowering::LowerFP_TO_SINT. Patterns for fp_to_sint have already 
been defined in MipsInstrFPU.td.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132076 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 20:08:05 +00:00
Akira Hatanaka
9c3d57c45e Custom-lower FCOPYSIGN nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132074 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 19:32:07 +00:00
Eli Friedman
783c66414a Prepare ARMFastISel::SelectSIToFP for getRegForValue returning registers for i8 and i16 values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132073 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 19:09:45 +00:00
Evan Cheng
237d10db8c Simplify r132022 based on Cameron's feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132071 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 18:17:13 +00:00
Akira Hatanaka
4c62f765a3 Update MaxCallFrameSize regardless of the relocation model selected. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132070 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 18:08:32 +00:00
Akira Hatanaka
f15f498507 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132065 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:52:48 +00:00
Akira Hatanaka
edacba83dc Coding style fixes. Added comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132063 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:32:06 +00:00
Francois Pichet
1b47720391 Remove unused OpcodeMask enumerator. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132062 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 17:02:53 +00:00
Francois Pichet
d9e57c146d Fix MSVC warning: "is out of range for enum constant" 
MSVC doesn't support 64 bit enum. 
OpcodeMask is not used anywhere in the code base.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132057 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 15:58:10 +00:00
Charles Davis
575630ccb8 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the 
buggy methods that parse these directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132045 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:51:25 +00:00
Cameron Zwarich
da86a08284 Restore an accidentally removed comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132044 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:48:17 +00:00
Cameron Zwarich
8e9bace414 Move some code to a more logical place. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132043 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:29 +00:00
Cameron Zwarich
106acd4158 Make tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. This 
fixes <rdar://problem/9495913>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132042 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:27 +00:00
Cameron Zwarich
328634598f Change the order of tBX's operands so that the predicate operands come after the 
target register, matching BX. I filed this bug because I was confused at first:

PR10007 - ARM branch instructions have inconsistent predicate operand placement
<http://llvm.org/bugs/show_bug.cgi?id=10007>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132041 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:23 +00:00
Cameron Zwarich
8f161c3a95 Rename tBX_Rm to tBX. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132040 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:20 +00:00
Cameron Zwarich
b36c1ae6d5 Rename the existing tBX/tBXr9 instructions to tBX_CALL/tBXr9_CALL to better 
reflect their actual meaning and match the ARM instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132039 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:45:14 +00:00
Andrew Trick
03d3d3b361 indvars: fixed IV cloning in -disable-iv-rewrite mode with associated 
cleanup and overdue test cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132038 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:42:22 +00:00
Charles Davis
47268164f3 Add a test for .seh_pushframe parsing. Fix the bug exposed by it (and another 
one I found by inspection).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132037 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 04:08:15 +00:00
Rafael Espindola
fc2bb8c444 Replace the -unwind-tables option with a per function flag. This is more 
LTO friendly as we can now correctly merge files compiled with or without
-fasynchronous-unwind-tables.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132033 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 03:44:17 +00:00
Akira Hatanaka
053546c31e Fix lowering of DYNAMIC_STACKALLOC nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132030 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 02:20:00 +00:00
Charles Davis
309213279e Add a test for the .seh_handler directive. Fix problems with the parsing 
method exposed by the test. While we're at it, simplify the .seh_proc
parsing method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132028 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 01:33:42 +00:00
Bruno Cardoso Lopes
56926a3961 Fix PR9762 
Enable the parsing of the operand "cpsr_all" for the ARM msr instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132026 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-25 00:35:03 +00:00
Evan Cheng
21d378d735 Forgot dyn_cast check. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132025 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:47:50 +00:00
Eric Christopher
4db7dec70b Implement the arm 'L' asm modifier. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132024 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:27:13 +00:00
Eric Christopher
e1739d598d Implement the immediate part of the 'B' modifier. 
Part of rdar://9119939


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132023 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:15:43 +00:00
Evan Cheng
424641ef83 Fix LoopUnswitch bug. RewriteLoopBodyWithConditionConstant can delete a dead 
case of a switch instruction. Back off this optimization when this would
eliminate all of the predecessors to the latch.

Sorry, I am unable to reduce a reasonably sized test case.

rdar://9486843


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132022 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 23:12:57 +00:00
Eric Christopher
fef50062ea Add more unimplemented asm modifiers and some documentation of what they 
do.

Part of rdar://9119939.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132015 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 22:27:43 +00:00
Eric Christopher
0628d38085 Add support for the arm 'y' asm modifier. 
Fixes part of rdar://9444657


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132011 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 22:10:34 +00:00
Charles Davis
40de0e013a Test basic SEH directive-parsing functionality. Fix a latent bug exposed by 
this test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132004 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 21:22:53 +00:00
Akira Hatanaka
ce98deb9f5 Enable printing of immediates that do not fit in 16-bit. .cprestore can have 
offsets that are larger than 0x10000.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132003 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 21:22:21 +00:00
Eli Friedman
b176399339 Change condition for determining whether a function is small for inlining metrics so that very long functions 
with few basic blocks are not re-analyzed.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131994 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 20:22:24 +00:00
Charles Davis
3b32d0240c Implement the rest of the SEH directive-parsing methods in the COFFAsmParser. 
Add a size alignment check to the .seh_stackalloc directive parser. Add a
more descriptive error message to the .seh_handler directive parser.

Add methods to the TargetAsmInfo struct in support of all this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131992 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 20:06:30 +00:00
Akira Hatanaka
4231c7ea6d Implement byval structure argument passing. The following limitations or 
deficiencies exist:

- Works only if ABI is o32.
- Zero-sized structures cannot be passed.
- There is a lot of redundancy in generated code.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131986 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 19:18:33 +00:00
Eli Friedman
a4d4aeb387 Make instcombine O(N) instead of O(N^2) in code where the same simplifiable constant is used many times. 
Part of rdar://9471075.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131979 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:52:07 +00:00
Devang Patel
8ec0c1c07b Remove dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131974 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:27:52 +00:00
Dan Gohman
9adf151b3d Make DecomposeGEPExpression check SimplifyInstruction only 
after checking for a GEP, so that it matches what GetUnderlyingObject
does. This fixes an obscure bug turned up by bugpoint in the testcase
for PR9931.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131971 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 18:24:08 +00:00
Charles Davis
6b918b8466 Add a method to TargetRegisterInfo to get the register number that the Win64 EH 
scheme uses internally. Implement it for x86 (the only architecture that LLVM
supports for which this matters right now).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131969 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 16:57:53 +00:00
Cameron Zwarich
13a16083ab Clean up the lazy initialization of DIBuilder a bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131956 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 06:00:08 +00:00
Cameron Zwarich
c827939046 Make LoadAndStorePromoter preserve debug info and create llvm.dbg.values when 
promoting allocas to SSA variables. Fixes <rdar://problem/9479036>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131953 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 03:10:43 +00:00
Rafael Espindola
e665798097 Explain FIXME. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131952 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 03:10:31 +00:00
Rafael Espindola
10c3e128ef Fix the defaults for .eh_frame. We were marking it as writable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131951 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 02:50:20 +00:00
Evan Cheng
b5a55d979c - Teach SelectionDAG::isKnownNeverZero to return true (op x, c) when c is 
non-zero.
- Teach X86 cmov optimization to eliminate the cmov from ctlz, cttz extension
  when the source of X86ISD::BSR / X86ISD::BSF is proven to be non-zero.

rdar://9490949


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131948 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 01:48:22 +00:00
Akira Hatanaka
b4d8d31e59 Simplify offset calculation of stack frame objects for $gp restore location and 
variable arguments in LowerCall and LowerFormalArguments. This should also fix
the bug in which handling of variable arguments is incorrect when the front-end
optimizes away unused fixed arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131942 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:23:52 +00:00
Devang Patel
a9b324be9c Fix debug info for blocks' variable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131940 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-24 00:22:25 +00:00
Devang Patel
c481b70a6a Remove unnecessary comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131936 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 23:16:14 +00:00
Akira Hatanaka
46da136ec7 Expand f64 FPOW. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131928 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:23:58 +00:00
Akira Hatanaka
f89532f8f6 Add pattern for double-to-integer conversion. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131927 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:16:43 +00:00
Devang Patel
9728ea2447 Revert 121907 (it causes llc crash) and apply original patch from PR9817. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131926 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 22:04:42 +00:00
Akira Hatanaka
bdd2ce9741 Fixes related to coding style. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131922 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:13:59 +00:00
Dan Gohman
1b58d4536a When checking for signed multiplication overflow, watch out for INT_MIN and -1. 
This fixes PR9845.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131919 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 21:07:39 +00:00
Jim Grosbach
95ae09afde Propagate error correctly in the MC Asm parser for leading '$' expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131918 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:36:04 +00:00
Akira Hatanaka
f8928c07e7 Fix MipsAsmPrinter::printSavedRegsBitmaskChange. Remove functions and variables 
in MipsFunctionInfo that are no longer used.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131917 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:34:30 +00:00
Chris Lattner
32232fc2b5 clarify this, apparently it is confusing :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131916 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:17:44 +00:00
Akira Hatanaka
69c19f7316 Change StackDirection from StackGrowsUp to StackGrowsDown. 
The following improvements are accomplished as a result of applying this patch:
- Fixed frame objects' offsets (relative to either the virtual frame pointer or
  the stack pointer) are set before instruction selection is completed. There is
  no need to wait until Prologue/Epilogue Insertion is run to set them.
- Calculation of final offsets of fixed frame objects is straightforward. It is
  no longer necessary to assign negative offsets to fixed objects for incoming
  arguments in order to distinguish them from the others.
- Since a fixed object has its relative offset set during instruction
  selection, there is no need to conservatively set its alignment to 4.
- It is no longer necessary to reorder non-fixed frame objects in 
  MipsFrameLowering::adjustMipsStackFrame.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131915 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 20:16:59 +00:00
Devang Patel
233857537f Preserve debug info during iSel by keeping DanglingDebugInfoMap live until end of function. 
Patch by Micah Villmow


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131908 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:44:13 +00:00
Devang Patel
35b6994608 While replacing all uses of a SDValue with another value, do not forget to transfer SDDbgValue. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131907 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:35:08 +00:00
Devang Patel
88c62fc1b4 Clear list of instructions without DebugLoc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131906 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 17:34:18 +00:00
Charles Davis
16e1b3fcf6 Implement .seh_stackalloc and .seh_pushframe parsing. 
I haven't implemented any of the ones that take registers yet. The problem is
that for x86-64 the streamer methods expect a native x86 register number (note:
%r8-%r15 want 8-15 instead of 0-7; same for %xmm8-%xmm15). I haven't figured
out exactly how I want to do that yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131899 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 16:43:09 +00:00
Chris Lattner
c10ecd8f23 fix a really nasty basicaa mod/ref calculation bug that was causing miscompilation of 
UnitTests/ObjC/messages-2.m with the recent optimizer improvements.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131897 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 05:15:43 +00:00
Cameron Zwarich
d34d429401 Fix <rdar://problem/9476260> by having tail calls always generate 32-bit branches 
in Darwin Thumb2 code. Tail calls are already disabled on Thumb1.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131894 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 01:57:17 +00:00
Chris Lattner
613f1a3994 rearrange two transforms, since one subsumes the other. Make the shift-exactness 
xform recurse.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131888 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:32:19 +00:00
Chris Lattner
05cd886561 Transform any logical shift of a power of two into an exact/NUW shift when 
in a known-non-zero context.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131887 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:21:50 +00:00
Chris Lattner
6083bb9353 use the valuetracking isPowerOfTwo function, which is more powerful than checking 
for a constant directly.  Thanks to Duncan for pointing this out.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131885 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:09:55 +00:00
Chris Lattner
b3f0673d52 Teach valuetracking that byval arguments with a specified alignment are 
aligned.

Teach memcpyopt to not give up all hope when confonted with an underaligned
memcpy feeding an overaligned byval.  If the *source* of the memcpy can be
determined to be adequeately aligned, or if it can be forced to be, we can
eliminate the memcpy.

This addresses PR9794.  We now compile the example into:

define i32 @f(%struct.p* nocapture byval align 8 %q) nounwind ssp {
entry:
  %call = call i32 @g(%struct.p* byval align 8 %q) nounwind
  ret i32 %call
}

in both x86-64 and x86-32 mode.  We still don't get a tailcall though,
because tailcalls apparently can't handle byval.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131884 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-23 00:03:39 +00:00
Chris Lattner
ae441cc33c add a helper method to get the byval alignment of an argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131883 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 23:57:23 +00:00
Chris Lattner
9db20f3bd8 Eliminate some temporary variables, and don't call getByValTypeAlignment 
when we're just going to throw the result away.  No functionality change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131880 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 23:23:02 +00:00
Chris Lattner
92f920c109 add a missing alias to make us more bug compatible with gcc, PR9378 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131874 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 22:31:57 +00:00
Chris Lattner
805fa97a0f implement PR9315, constant folding exp2 in terms of pow (since hosts without 
C99 runtimes don't have exp2).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131872 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 22:22:35 +00:00
Renato Golin
1ec11fb8b5 RTABI chapter 4.3.4 specifies __eabi_mem* calls. Specifically, __eabi_memset accepts parameters (ptr, size, value) in a different order than GNU's memset (ptr, value, size), therefore the special lowering in AAPCS mode. Implementation by Evzen Muller. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131868 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 21:41:23 +00:00
Charles Davis
fbc539ff37 Add methods to parse the SEH directives to the COFFAsmParser. Implement some 
of them, particularly the ones that don't take arguments. Also implement
.seh_proc and .seh_handler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131866 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 21:12:15 +00:00
Chris Lattner
87943e3698 add a note. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131863 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 18:28:46 +00:00
Chris Lattner
6c9b8d3d41 add some random notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131862 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 18:26:48 +00:00
Evan Cheng
cb559c1270 Teach ValueTracking about x86 crc32 intrinsics. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131861 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 18:25:30 +00:00
Chris Lattner
1add46ddfa Carve out a place in instcombine to put transformations which work knowing that their 
result is non-zero.  Implement an example optimization (PR9814), which allows us to
transform:
  A / ((1 << B) >>u 2)
into:
  A >>u (B-2)

which we compile into:

_divu3:                                 ## @divu3
	leal	-2(%rsi), %ecx
	shrl	%cl, %edi
	movl	%edi, %eax
	ret

instead of:

_divu3:                                 ## @divu3
	movb	%sil, %cl
	movl	$1, %esi
	shll	%cl, %esi
	shrl	$2, %esi
	movl	%edi, %eax
	xorl	%edx, %edx
	divl	%esi, %eax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131860 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 18:18:41 +00:00
Johnny Chen
75f4296c7c Fix Bug 9386 - ARM disassembler failed to disassemble conditional bx 
Modified the patch to .td file supplied by Jyun-Yan You.  Add a test case and
modified ARMDisassemblerCore.cpp a little bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131859 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 17:51:04 +00:00
Chris Lattner
4f81b54192 Fix PR9815: I was trying to get out of "generating code and then 
failing to form a memset, then having to delete it" but my approximation
isn't safe for self recurrent loops.  Instead of doign a hack, just
do it the right way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131858 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 17:39:56 +00:00
Frits van Bommel
5649ba70fb Add a parameter to ConstantFoldTerminator() that callers can use to ask it to also clean up the condition of any conditional terminator it folds to be unconditional, if that turns the condition into dead code. This just means it calls RecursivelyDeleteTriviallyDeadInstructions() in strategic spots. It defaults to the old behavior. 
I also changed -simplifycfg, -jump-threading and -codegenprepare to use this to produce slightly better code without any extra cleanup passes (AFAICT this was the only place in -simplifycfg where now-dead conditions of replaced terminators weren't being cleaned up). The only other user of this function is -sccp, but I didn't read that thoroughly enough to figure out whether it might be holding pointers to instructions that could be deleted by this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131855 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 16:24:18 +00:00
Chris Lattner
98a42b2fc3 fix PR9856, an incorrectly conservative assertion: a global can be 
"stored once" even if its address is compared.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131849 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 07:15:13 +00:00
Chris Lattner
9e7bc05ad7 fix PR9841 by having GVN not process dead loads. This was 
causing it to get into infinite loops when it would widen a 
load (which can necessarily leave around dead loads).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131847 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 07:03:34 +00:00
Chris Lattner
c4cb237ca6 fix a bug for hosts without round, PR8893. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131842 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 06:03:53 +00:00
Chris Lattner
b6fcf4cfbc move PR9408 here. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131841 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 05:45:06 +00:00
Nick Lewycky
6d55f2269e Teach the inliner to emit llvm.lifetime.start/end, to scope the local variables 
of the inlinee to the code representing the original function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131838 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 05:22:10 +00:00
Chris Lattner
9063b55f9b switch to using a smallvector to avoid allocations for most normal size instructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131837 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 04:53:24 +00:00
Chris Lattner
97ff42d51d tidy some things up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131836 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 04:52:24 +00:00
Charles Davis
38ea9eecd7 Implement emission of all Win64 exception tables. Make the COFF streamer emit 
these tables.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131833 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 04:15:07 +00:00
Charles Davis
3185f5c353 Make the COFF streamer emit unwind info when processing a .seh_handlerdata 
directive.

Implement emission of Win64 EH unwind info.

Pull in <cassert> in MCWin64EH.h so it can use the assert() macro.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131832 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 03:01:05 +00:00
Charles Davis
edeecbff0e Don't allow unaligned offsets and sizes in the Win64 EH directives. 
Also, fix threshold for 'Big' register saves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131830 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 00:56:20 +00:00
Chris Lattner
9bb4a2ae8a random comment cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131829 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 00:50:53 +00:00
Chris Lattner
dcef346948 remove StandardPasses, it has been replaced with PassManagerBuilder 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131827 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 00:30:45 +00:00
Chris Lattner
402d9d9935 eliminate dependence on StandardPasses.h. The code generator's pass pipeline 
should eventually convert to PMBuilder, but I don't plan to do this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131819 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-22 00:13:44 +00:00
Nick Lewycky
0cf51561ed Add CreateLifetimeStart and CreateLifetimeEnd to the IRBuilder, with plans to 
use these soon.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131812 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 23:14:36 +00:00
Duncan Sands
d22920aae8 Revert commit 131781, to see if it fixes the x86-64 dragonegg buildbot. 
Original log message:
When BasicAA can determine that two pointers have the same base but
differ by a dynamic offset, return PartialAlias instead of MayAlias.
See the comment in the code for details. This fixes PR9971.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131809 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 20:54:46 +00:00
Chris Lattner
40f5fbcc5c add a copy ctor to TargetLibraryInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131806 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 20:09:13 +00:00
Eli Friedman
21c60904ce PR7952: Make isa<> use the same logic as cast<>, so that they both work 
consistently.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131803 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 19:13:10 +00:00
Benjamin Kramer
b22da2a72c X86: smulo -> add is now done target-independently in DAGCombiner, remove the patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131801 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 18:32:01 +00:00
Benjamin Kramer
f55d26e788 Implement mulo x, 2 -> addo x, x in DAGCombiner. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131800 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 18:31:55 +00:00
Benjamin Kramer
cd89d4d524 Revert "InstCombine: Turn mul.with.overflow(X, 2) into the cheaper add.with.overflow(X, X)" 
It's better to do this in codegen, mul.with.overflow(X, 2) is more canonical because it has only one use on "X".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131798 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 18:31:42 +00:00
Charles Davis
81f3830f2e Don't allow .seh_handler and .seh_handlerdata directives inside chained 
unwind areas.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131795 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 17:36:25 +00:00
Charles Davis
321fe74b2d A handler for a function in the Win64 EH scheme can be both an unwind handler 
and an exception handler. Handle that case.

Also, add an 'Emitted' member to the MCWin64EHUnwindInfo struct. It will be
needed later.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131791 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 15:57:49 +00:00
Benjamin Kramer
c21b205f93 InstCombine: Turn mul.with.overflow(X, 2) into the cheaper add.with.overflow(X, X) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131789 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 09:22:06 +00:00
Cameron Zwarich
37fed38ec1 Fix PR9978 by adding RIP to GR64_TC so it can be used as an address in PIC code. It 
is already in GR64 for the same reasons. Since it isn't allocatable it can't cause
any problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131787 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 04:13:49 +00:00
Akira Hatanaka
52106e1e25 Use the correct register to access stack frame objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131785 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 03:01:03 +00:00
Akira Hatanaka
f346c69530 Insert instructions that copy $sp to or from $fp at the right locations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131784 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 02:29:26 +00:00
Dan Gohman
424b777171 When BasicAA can determine that two pointers have the same base but 
differ by a dynamic offset, return PartialAlias instead of MayAlias.
See the comment in the code for details. This fixes PR9971.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131781 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 01:05:08 +00:00
Andrew Trick
dc5948d472 Have Program::Wait return -2 for crashed and timeouts instead of embedding 
info in the error message. Per Dan's request.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131780 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 00:56:46 +00:00
Charles Davis
5c2256a571 Set the "LastFrameInst" field when streaming a .seh_setframe directive. This 
is needed for an upcoming patch.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131772 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-21 00:09:04 +00:00
Cameron Zwarich
345968c82d Fix PR9962 by properly constraining register classes in RemoveCopyByCommutingDef(). This 
actually fixes most of the VerifyCoalescing failures in test-suite.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131768 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 23:25:36 +00:00
Akira Hatanaka
43299776d7 Change the order fixed objects are created in MipsTargetLowering::LowerCall in 
preparation for reversing StackDirection.

Fixed objects are created in the following order:  
 1. Incoming arguments passed on stack.
 2. va_arg objects (include both arguments that are passed in registers and
    pointer to the location of the first va_arg argument).
 3. $gp restore slot.
 4. Outgoing arguments passed on stack.
 5. Pointer to alloca'd space.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131767 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 23:22:14 +00:00
Charles Davis
98eb7be103 Fix typo. When will I learn? 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131765 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 22:23:34 +00:00
Eli Friedman
c088345f13 Add fast-isel support for byval calls on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131764 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 22:21:04 +00:00
Charles Davis
f3ffc2cd76 Add .pdata and .xdata sections to the COFF TLOF implementation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131763 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 22:13:55 +00:00
Jim Grosbach
958b68140e No reason not to allow defining the CFA as a reg w/ offset zero. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131760 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:50:09 +00:00
Akira Hatanaka
d37776d1c1 In CC_MipsO32, allocate a stack space regardless of whether the argument is 
passed in register or on the stack.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131758 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:39:54 +00:00
Jim Grosbach
1585ce7e8c Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131757 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:35:39 +00:00
Jim Grosbach
2b6f7117f5 Add support for frame info use of the .cfi_def_cfa directive. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131756 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:23:17 +00:00
Jim Grosbach
ae8e829d39 Add missing leading \t when printing .cfi_def_cfa in the asmstreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131755 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 21:22:37 +00:00
Akira Hatanaka
6ffbf82e22 Define functions that get/set maximum call frame size. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131752 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:11:17 +00:00
Rafael Espindola
b8adb8af0f adds some attributes to attribute section when cpu is "xscale" 
(this is what used in Android NDK, when architecture is ARMv5)

patch by Koan-Sin Tan

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131751 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:10:34 +00:00
Rafael Espindola
298c8e12ea fixes target address tBL and tBLX and sets relocation type 
of tBL/tBLX to R_ARM_THM_CALL (ARM ELF 4.7.1.6)

Patch by koan-sin tan.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131748 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 20:01:01 +00:00
Stuart Hastings
0e29ed081b Re-commit 131641 with fixes; de-pseudoize MOVSX16rr8 and friends. 
rdar://problem/8614450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131746 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 19:04:40 +00:00
Akira Hatanaka
17a1e87751 Make $fp and $ra callee-saved registers and let PrologEpilogInserter handle 
saving and restoring them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131745 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:39:33 +00:00
Andrew Trick
f85092c255 indvars: Prototyping Sign/ZeroExtend elimination without canonical IVs. 
No functionality enabled by default. Use -disable-iv-rewrite.
Extended IVUsers to keep track of the phi that represents the users' IV.
Added the WidenIV transform to replace a narrow IV with a wide IV
by doing a one-for-one replacement of IV users instead of expanding the
SCEV expressions. [sz]exts are removed and truncs are inserted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131744 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:25:42 +00:00
Charles Davis
cde87e2377 Now that they're implemented, make the Win64 EH MCAsmStreamer methods call 
super.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131743 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 18:19:22 +00:00
Evan Cheng
0b65599015 Revert accidental commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131739 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 17:38:48 +00:00
Charles Davis
d0b76d0004 "Implement" the HandlerData Win64 EH method in the base MCStreamer. 
There's really nothing to implement. All this really does is swap to a
pseudo-section that later gets written to the unwind info struct. That
needs to be implemented in the object streamers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131734 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 16:06:22 +00:00
Benjamin Kramer
eb274e6bdd Rename the "sandybridge" subtarget to "corei7-avx", for GCC compatibility. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131730 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 15:11:26 +00:00
Benjamin Kramer
6e35e4c8c1 Remove noisy semicolons. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131724 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 09:20:25 +00:00
Cameron Zwarich
21a70bf4a5 Fix PR9960 by teaching SimpleRegisterCoalescing::AdjustCopiesBackFrom() to preserve 
the phikill flag.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131717 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 03:54:04 +00:00
Andrew Trick
074397d75e indvars: minor cleanup in preparation for sign/zero extend elimination. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131716 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 03:37:48 +00:00
Akira Hatanaka
cd0f90f831 Fix bug in which nodes that write to argument registers do not get glued with the JALR node. Patch by Sasa Stankovic 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131714 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 02:30:51 +00:00
Akira Hatanaka
d992f6c666 Remove code that creates unnecessary frame objects. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131711 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 01:45:06 +00:00
Akira Hatanaka
da0a3571d6 Define variables and functions in MipsFunctionInfo. 
This is the first of a series of patches that attempt to simplify handling of 
stack frame objects. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131710 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 01:17:58 +00:00
Chad Rosier
a166089f36 Don't attempt to tail call optimize for Win64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131709 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 00:59:28 +00:00
Evan Cheng
2e6496026f Revert r131664 and fix it in instcombine instead. rdar://9467055 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131708 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-20 00:54:37 +00:00
Cameron Zwarich
5a4b3d8c8f Fix PR9955 by only attaching load memory operands to load instructions and 
similarly for stores. Now "make check" passes with the MachineVerifier forced
on with the VerifyCoalescing option!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131705 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 23:44:34 +00:00
Eli Friedman
dc51575a5f Add fast-isel support for zeroext and signext ret instructions on x86. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131689 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 22:16:13 +00:00
Rafael Espindola
78ff647e44 Looks like OS X assemblers (including MC) don't like 
foo:
bar = foo
.quad bar

Avoid producing it. Fixes PR9951.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131687 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 22:05:56 +00:00
Rafael Espindola
a6f2678f08 Misc code refactorings: 
* Remove unnecessary arguments now that ForceExpAbs is a method.
* Use ForceExpAbs in EmitAbsValue.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131683 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:40:34 +00:00
Eric Christopher
2bbecd8f6d Oddly people want to use the 'r' constraint for fp constants on x86. 
Fixes rdar://9218925
Fixes PR9601


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131682 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:33:47 +00:00
Charles Davis
61558aaf4f Implement the EndProlog Win64 EH method on the base MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131679 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 21:24:54 +00:00
Jason W Kim
861b9c6a39 This fixes one divergence between LLVM and binutils for ARM in the 
text section.

Assume the following bit of annotated assembly:

.section	.data.rel.ro,"aw",%progbits
.align	2
.LAlpha:
.long	startval(GOTOFF)

.text
.align	2
.type	main,%function
.align	4

main: ;;; assume "main" starts at offset 0x20
0x0	push	{r11, lr}
0x4	movw	r0, :lower16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-4) + 8) = -20
0x8	movt	r0, :upper16:(.LAlpha-(.LBeta+8))
;;; ==> (.AddrOf(.LAlpha) - ((.AddrOf(.LBeta) - .AddrOf(".")) + 8)
;;; ==> (??? - ((16-8) + 8) = -16
0xc	... blah

.LBeta:
0x10	add	r0, pc, r0
0x14	... blah

.LGamma:
0x18	add	r1, pc, r1

Above snippet results in the following relocs in the .o file for the
first pair of movw/movt instructions

00000024 R_ARM_MOVW_PREL_NC .LAlpha
00000028 R_ARM_MOVT_PREL .LAlpha

And the encoded instructions in the .o file for main: must be

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec i.e. -20
28:	e34f0ff0 movt	r0, #65520	; 0xfff0 i.e. -16

However, llc (prior to this commit) generates the following sequence

00000020 <main>:
20:	e92d4800 push	{fp, lr}
24:	e30f0fec movw	r0, #65516	; 0xffec - i.e. -20
28:	e34f0fff movt	r0, #65535	; 0xffff - i.e. -1

What has to happen in the ArmAsmBackend is that if the relocation is PC
relative, the 16 bits encoded as part of movw and movt must be both addends,
not addresses. It makes sense to encode addresses by right shifting the value
by 16, but the result is incorrect for PIC.
i.e., the right shift by 16 for movt is ONLY valid for the NON-PCRel case.

This change agrees with what GNU as does, and makes the PIC code run.

MC/ARM/elf-movt.s covers this case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131674 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:55:25 +00:00
Devang Patel
d3a1788da1 Reapply r131605. This time with a fix, which is to use NoFolder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131673 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:52:46 +00:00
Rafael Espindola
a3bff99f0a ADD64ri32 sign extends its argument, so we need to use a R_X86_64_32S. 
Fixes PR9934.

We really need to start tblgening the relocation info :-(

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 2011-05-19 20:32:34 +00:00
Akira Hatanaka
a1a7ba8382 Align i64 arguments to 64 bit boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131668 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 20:29:48 +00:00
Charles Davis
c3b162857a Implement the Win64 EH prolog instruction methods on the base MCStreamer. 
I had to change the API slightly to avoid overloading issues.


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 2011-05-19 19:35:55 +00:00
Evan Cheng
0efaa5e6a1 crc32 with 64-bit output zeros upper 32-bits. rdar://9467055 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131664 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:57:12 +00:00
Stuart Hastings
3dfc4b1222 Update some currently-disabled code, preparing for eventual use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131663 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:48:20 +00:00
Akira Hatanaka
59d266029c Increase number of available registers when target is MIPS32. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131660 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:25:03 +00:00
Evan Cheng
aaa7f499c1 Add comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131659 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:18:39 +00:00
Akira Hatanaka
95b8ae190e Simplify CC_MipsO32 and merge it with CC_MipsO32_VarArgs. Patch by Sasa Stankovic. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131657 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:06:05 +00:00
Joerg Sonnenberger
f8cd708f14 Reapply 131644 including the missing header changes: 
Introduce -fatal-assembler-warnings for the obvious purpose


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131655 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 18:00:13 +00:00
Stuart Hastings
d22f036c2a Reverting 131641 to investigate 'bot complaint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131654 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:54:42 +00:00
Eli Friedman
8bd71a1ec1 Revert r131644; it's breaking the build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131653 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:48:09 +00:00
Charles Davis
440596ffe5 Turns out GAS does have Win64 EH directives. (It also supports WinCE EH.) Make 
ours compatible with GAS.

In retrospect, I should have emailed binutils about this earlier. Thanks to
Kai Tietz for pointing out that GAS already had SEH directives.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131652 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:46:39 +00:00
Jim Grosbach
6635b04a43 80 columns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131649 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:34:53 +00:00
Joerg Sonnenberger
bae1c924ce Introduce -fatal-assembler-warnings for the obvious purpose 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131644 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:27:01 +00:00
Akira Hatanaka
d48cfaec35 Fix data layout string. i64 is aligned to 64 bit boundaries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131642 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 17:21:09 +00:00
Stuart Hastings
b6dcf3c514 Revise MOVSX16rr8/MOVZX16rr8 (and rm variants) to no longer be 
pseudos.  rdar://problem/8614450


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131641 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 16:59:50 +00:00
Cameron Zwarich
055cdfc541 Use the correct register class for Cell varargs spilling. This fixes all of the 
verifier failures in the CodeGen/CellSPU tests.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131631 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 04:44:19 +00:00
Mon P Wang
28e2b1d29a Fixed sdiv and udiv for <4 x i16>. The test from r125402 still applies for this change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131630 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 04:15:07 +00:00
Charles Davis
91d9a1c0f7 Implement the StartChained and EndChained Win64 EH methods on MCStreamer. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131629 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 04:04:13 +00:00
Cameron Zwarich
d76773a221 Make CodeGen/PowerPC/2007-09-11-RegCoalescerAssert.ll pass with the verifier. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131627 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 03:11:06 +00:00
Cameron Zwarich
0113e4e3f2 Fix PR8828 by removing the explicit def in MovePCToLR as well as the pointless 
piclabel operand. The operand in the tablegen definition doesn't actually turn
into an MI operand, so it just confuses anything checking the TargetInstrDesc
for the number of operands. It suffices to just have an implicit def of LR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131626 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 02:56:28 +00:00
Cameron Zwarich
462b6dc6bf Reuse the TargetInstrDesc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131625 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 02:56:23 +00:00
Charles Davis
0855bc5b97 Implement the StartProc and EndProc Win64 EH methods on the base MCStreamer. 
Based largely on Rafael Espindola's work on CFI. Other methods soon to follow.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131623 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 02:49:00 +00:00
Rafael Espindola
216dde91d1 revert 131605 to fix PR9946. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131620 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 02:26:30 +00:00
Cameron Zwarich
21803721d5 Correctly constrain a register class when computing frame offsets, as the Thumb2 
add instruction takes an rGPR. This fixes the last of PR8825.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131619 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 02:18:27 +00:00
Cameron Zwarich
6fcb6e454b Revert r128961 because it didn't include a test and causes the verifier to fail 
on CodeGen/X86/2007-05-07-InvokeSRet.ll. There is probably a bug here that was
fixed by r128961, but since there is no test or reference to a source file I have
to revert it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131618 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 01:56:19 +00:00
Eli Friedman
6fd5a6000b Make the demanded bits/elements optimizations preserve debug line information. 
I'm not sure this is quite ideal, but I can't really think of any better way to do it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131616 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 01:20:42 +00:00
Jim Grosbach
c0ceedb6f8 Avoid a Twine that referenced a tmp (which proceded to go out of scope before 
the Twine was used).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131612 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 00:45:05 +00:00
Devang Patel
1f5812bd99 Use IRBuilder. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131609 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 00:13:33 +00:00
Devang Patel
1aa89a2f91 Use IRBuilder while simplifying unreachable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131607 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 00:09:21 +00:00
Rafael Espindola
7205d431f1 Revert my previous patch. The cmake build had already been fixed. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131606 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-19 00:02:45 +00:00
Devang Patel
0b4ccdc98c Use IRBuilder while simplifying conditional branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131605 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:59:51 +00:00
Eli Friedman
e6f364b6c4 More instcombine cleanup, towards improving debug line info. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131604 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:58:37 +00:00
Jim Grosbach
e0b58634a1 Restore sanity to 131601. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131603 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:56:43 +00:00
Rafael Espindola
e37234739e Fix the cmake build. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131602 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:56:40 +00:00
Jim Grosbach
3ec2c7c3e4 Objective C functions may use a magic '\1' on the name. Handle that when 
dealing with them in the MCJIT.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131601 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:53:21 +00:00
Eli Friedman
49fcf571da Shuffle StandardPasses.cpp into VMCore; add it to CMake. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131600 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:51:11 +00:00
Devang Patel
02dd5418d2 Use IRBuilder while simplifying branch. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131598 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:18:47 +00:00
Eli Friedman
22486c9aba Revert unintentional commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131597 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:13:10 +00:00
Eli Friedman
107ffd58f7 More instcombine simplifications towards better debug locations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131596 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:11:30 +00:00
Cameron Zwarich
631fcbf810 Add missing mayLoad / mayStore flags to instruction definitions without patterns, 
which fixes all of the CodeGen/MBlaze verifier failures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131595 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 23:03:10 +00:00
Cameron Zwarich
e4c6445405 Reserve the segment registers on x86 to fix verifier failures in any code that 
uses them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131591 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 22:24:48 +00:00
Charles Davis
8b3e5e5afa Remove comments as Chris requested. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131590 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 22:13:51 +00:00
Cameron Zwarich
20a41cb2b2 Reserve r29 on Alpha. This fixes all verifier failures in CodeGen/Alpha. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131587 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:54:32 +00:00
Tanya Lattner
db28247522 Handle perfect shuffle case that generates a vrev for vectors of floats. 
Add test case.


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 2011-05-18 21:44:54 +00:00
Eli Friedman
10a818809d Third pass at allowing plugins to modify default passes. This time with a tweak so that we don't depend on an uninitialized argument. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131581 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:40:04 +00:00
Devang Patel
176ec40cb1 Use IRBuilder while simplifying return instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131580 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:33:11 +00:00
Cameron Zwarich
d36d26d008 Fix an obvious typo in r131572. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131579 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:29:07 +00:00
Cameron Zwarich
955db42568 Fix more of PR8825. Now all of CodeGen/ARM passes with VerifyCoalescing turned on. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131578 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:25:14 +00:00
Dan Gohman
673968ae78 When forming an ICmpZero LSRUse, normalize the non-IV operand 
of the comparison, so that the resulting expression is fully
normalized. This fixes PR9939.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131576 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-05-18 21:02:18 +00:00