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Author SHA1 Message Date
Devang Patel
52e803e053 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. 
llvm-svn: 132151
 2011-05-26 21:51:06 +00:00
Devang Patel
177dbe2de1 Add comment. 
llvm-svn: 132149
 2011-05-26 21:49:28 +00:00
Devang Patel
e0b7ab9296 During branch folding avoid inserting redundant DBG_VALUE machine instructions. 
llvm-svn: 132148
 2011-05-26 21:47:59 +00:00
Akira Hatanaka
71839b355d Use MachineFrameInfo::hasCalls instead of MipsFunctionInfo::hasCall to check if 
a function has any function calls.

llvm-svn: 132140
 2011-05-26 20:30:31 +00:00
Rafael Espindola
a77d692299 Fix some dwarf register numbers. 
llvm-svn: 132136
 2011-05-26 19:25:47 +00:00
Galina Kistanova
ceabe8c579 Make few ExecutionEngine tests XFAIL for ARM, since ExecutionEngine is broken for ARM, please remove the following XFAIL when it will be fixed. 
llvm-svn: 132135
 2011-05-26 19:17:14 +00:00
Rafael Espindola
0395db684a Fix LTO builds with xcode 4. 
llvm-svn: 132132
 2011-05-26 18:59:54 +00:00
Akira Hatanaka
5bfbea9ef2 Add support for C++ exception handling. 
llvm-svn: 132131
 2011-05-26 18:59:03 +00:00
Eric Christopher
4fc5b88850 Reorganize these slightly according to operand type. 
llvm-svn: 132128
 2011-05-26 18:22:26 +00:00
Akira Hatanaka
5a8bd76f99 Set HasSetDirective to true. 
llvm-svn: 132127
 2011-05-26 18:16:18 +00:00
Eli Friedman
15dc009422 Fix test on Windows. 
llvm-svn: 132126
 2011-05-26 18:00:32 +00:00
Charles Davis
4becdc727e Revert r132111. I built Release (without Asserts), so I didn't know about the 
assert that prevented setting alignment on section creation.

llvm-svn: 132113
 2011-05-26 05:35:55 +00:00
Charles Davis
a5045b7351 Fix definitions of UOP_SaveXMM128, UOP_SaveXMM128Big, and UOP_PushMachFrame 
to match Microsoft's definitions.

llvm-svn: 132112
 2011-05-26 05:24:15 +00:00
Charles Davis
44fb280873 Align Win64 EH Table sections to 4 bytes. 
llvm-svn: 132111
 2011-05-26 05:19:54 +00:00
Charles Davis
cf332d9ff7 Add a test for the chained directives that I forgot last time. 
llvm-svn: 132110
 2011-05-26 05:17:43 +00:00
Francois Pichet
3d8581cca9 Fix MSVC warning regarding mkdir function usage. 
llvm-svn: 132109
 2011-05-26 04:55:20 +00:00
Stuart Hastings
837a958ff6 Reverting 132105: it broke some LLVM-GCC DejaGNU tests. 
llvm-svn: 132108
 2011-05-26 04:09:49 +00:00
Cameron Zwarich
9c871755b6 Mark tBX as an indirect branch rather than a return. 
llvm-svn: 132107
 2011-05-26 03:41:12 +00:00
Charles Davis
0021487a8e 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.

llvm-svn: 132106
 2011-05-26 02:45:47 +00:00
Stuart Hastings
e704bfb21e Correctly handle a one-word struct passed byval on x86_64. 
rdar://problem/6920088

llvm-svn: 132105
 2011-05-26 02:44:56 +00:00
Andrew Trick
0577c5768b 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.

llvm-svn: 132103
 2011-05-26 00:46:11 +00:00
Jakob Stoklund Olesen
6c654330dc 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.

llvm-svn: 132101
 2011-05-25 23:58:36 +00:00
Eli Friedman
93ffb875ad 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 .

llvm-svn: 132099
 2011-05-25 23:49:02 +00:00
Akira Hatanaka
3f49cbeb37 Define WeakRefDirective. 
llvm-svn: 132098
 2011-05-25 23:30:30 +00:00
Eli Friedman
5cd755549b PR9998: ashr exact %x, 31 is not equivalent to sdiv exact %x, -2147483648. 
llvm-svn: 132097
 2011-05-25 23:26:20 +00:00
Devang Patel
7e814e1e36 Remove unused statistical counter. 
llvm-svn: 132087
 2011-05-25 21:55:40 +00:00
Cameron Zwarich
9c19995747 Convert tBX_CALL / tBXr9_CALL to actual pseudoinstructions. 
llvm-svn: 132086
 2011-05-25 21:53:50 +00:00
Charles Davis
ede0f07dae 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.

llvm-svn: 132084
 2011-05-25 21:43:45 +00:00
Eric Christopher
e02bd15dbc Clean up comment a bit. 
llvm-svn: 132083
 2011-05-25 21:19:19 +00:00
Eric Christopher
807da21e47 Implement the 'm' modifier. Note that it only works for memory operands. 
Part of rdar://9119939

llvm-svn: 132081
 2011-05-25 20:51:58 +00:00
Akira Hatanaka
4806508364 Remove MipsTargetLowering::LowerFP_TO_SINT. Patterns for fp_to_sint have already 
been defined in MipsInstrFPU.td.

llvm-svn: 132076
 2011-05-25 20:08:05 +00:00
Akira Hatanaka
32b5043265 Custom-lower FCOPYSIGN nodes. 
llvm-svn: 132074
 2011-05-25 19:32:07 +00:00
Eli Friedman
2bdd096540 Prepare ARMFastISel::SelectSIToFP for getRegForValue returning registers for i8 and i16 values. 
llvm-svn: 132073
 2011-05-25 19:09:45 +00:00
Evan Cheng
335fcad6bc Simplify r132022 based on Cameron's feedback. 
llvm-svn: 132071
 2011-05-25 18:17:13 +00:00
Akira Hatanaka
ae2e2d557a Update MaxCallFrameSize regardless of the relocation model selected. 
llvm-svn: 132070
 2011-05-25 18:08:32 +00:00
Akira Hatanaka
953e0a3c45 Change initial value of MaxCallFrameSize. MipsFI::getMaxCallFrameSize() should 
return 0 if there are no function calls made. 

llvm-svn: 132065
 2011-05-25 17:52:48 +00:00
Akira Hatanaka
33415b8179 Coding style fixes. Added comments. 
llvm-svn: 132063
 2011-05-25 17:32:06 +00:00
Francois Pichet
b2042fbfe2 Remove unused OpcodeMask enumerator. 
llvm-svn: 132062
 2011-05-25 17:02:53 +00:00
Francois Pichet
b8f50b86bc Fix 3 MSVC warnings: 
'void (__cdecl *)()' differs in parameter lists from 'void (__cdecl *)(void)'

atexit really expects a "void f(void)" function.

llvm-svn: 132061
 2011-05-25 16:32:33 +00:00
Francois Pichet
fab3c58733 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.

llvm-svn: 132057
 2011-05-25 15:58:10 +00:00
Rafael Espindola
84604c0b6c Fix some issues Duncan found in the previous commit. 
I kept the reference to the ABI since that is the common case. The
-fno-asynchronous-unwind-tables option is a user controlled way of breaking
the ABI.

llvm-svn: 132053
 2011-05-25 12:54:08 +00:00
Frits van Bommel
271d62cbd3 Fix warning in the CMake build about redefining LLVM_PATH_XDOT_PY by making sure both definitions are identical. This used to produce warnings like 
In file included from .../llvm/trunk/tools/lto/LTOCodeGenerator.cpp:45:
In file included from .../llvm/trunk/include/llvm/Support/system_error.h:225:
.../include/llvm/Config/config.h:591:9: warning: 'LLVM_PATH_XDOT_PY' macro redefined
#define LLVM_PATH_XDOT_PY ".../bin/xdot.py"
        ^
.../include/llvm/Config/llvm-config.h:98:9: note: previous definition is here
#define LLVM_PATH_XDOT_PY ""
        ^
1 warning generated.

(Paths edited for clarity)

Note: This only affected people who had xdot.py installed.
llvm-svn: 132050
 2011-05-25 06:32:23 +00:00
Argyrios Kyrtzidis
f5fe5499f9 [tablegen] A couple of changes to ClangDiagnosticEmmitter. 
-Emit an empty warning option as string ("") instead of 0.
-For diagnostic names also emit the size of the string.

llvm-svn: 132046
 2011-05-25 05:04:22 +00:00
Charles Davis
6b67ee5130 Add tests for .seh_savereg and .seh_savexmm parsing. Once again, fix the 
buggy methods that parse these directives.

llvm-svn: 132045
 2011-05-25 04:51:25 +00:00
Cameron Zwarich
5c410bd5f6 Restore an accidentally removed comment. 
llvm-svn: 132044
 2011-05-25 04:48:17 +00:00
Cameron Zwarich
4f47b296d8 Move some code to a more logical place. 
llvm-svn: 132043
 2011-05-25 04:45:29 +00:00
Cameron Zwarich
beae5f20e8 Make tTAILJMPr/tTAILJMPrND emit a tBX without a preceding MOV of PC to LR. This 
fixes <rdar://problem/9495913>

llvm-svn: 132042
 2011-05-25 04:45:27 +00:00
Cameron Zwarich
5a32e53e3f 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>

llvm-svn: 132041
 2011-05-25 04:45:23 +00:00
Cameron Zwarich
08753a605b Rename tBX_Rm to tBX. 
llvm-svn: 132040
 2011-05-25 04:45:20 +00:00
Cameron Zwarich
d9707488bb Rename the existing tBX/tBXr9 instructions to tBX_CALL/tBXr9_CALL to better 
reflect their actual meaning and match the ARM instructions.

llvm-svn: 132039
 2011-05-25 04:45:14 +00:00