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89 Commits

Author SHA1 Message Date
Jim Grosbach
1ebe0e2667 Add 'const' to getter function. 
llvm-svn: 112984
 2010-09-03 18:17:16 +00:00
Eric Christopher
67801775eb Fix a couple of typos. 
Patch by Cameron Esfahani!

llvm-svn: 112297
 2010-08-27 21:38:11 +00:00
Jim Grosbach
33f85d977a Remove the MFI storage of the local allocation block size. It's not needed. 
llvm-svn: 111847
 2010-08-23 21:29:29 +00:00
Jim Grosbach
079599c699 Add explicit initializer for UseLocalStackAllocationBlock in MFI constructor 
llvm-svn: 111655
 2010-08-20 17:34:22 +00:00
Jim Grosbach
d6e0ffd95b Update local stack block allocation to let PEI do the allocs if no additional 
base registers were required. This will allow for slightly better packing
of the locals when alignment padding is necessary after callee saved registers.

llvm-svn: 111508
 2010-08-19 02:47:08 +00:00
Jim Grosbach
ea414d3999 Better handle alignment requirements for local objects in pre-regalloc frame 
mapping. Have the local block track its alignment requirement, and then
apply that when the block itself is allocated. Previously, offsets could
get adjusted in PEI to be different, relative to one another, than the
block allocation thought they would be, which defeats the point of doing
the allocation this way. Continuing rdar://8277890

llvm-svn: 111197
 2010-08-16 22:30:41 +00:00
Jim Grosbach
33f86ffe9f track local frame size in MFI, not local to the pass, since PEI needs it. 
llvm-svn: 111164
 2010-08-16 18:06:15 +00:00
Jim Grosbach
a4d3174cba Add a local stack object block allocation pass. This is still an 
experimental pass that allocates locals relative to one another before
register allocation and then assigns them to actual stack slots as a block
later in PEI. This will eventually allow targets with limited index offset
range to allocate additional base registers (not just FP and SP) to
more efficiently reference locals, as well as handle situations where
locals cannot be referenced via SP or FP at all (dynamic stack realignment
together with variable sized objects, for example). It's currently
incomplete and almost certainly buggy. Work in progress.

Disabled by default and gated via the -enable-local-stack-alloc command
line option.

rdar://8277890

llvm-svn: 111059
 2010-08-14 00:15:52 +00:00
Jim Grosbach
b1e8749e37 tidy up comments 
llvm-svn: 111040
 2010-08-13 20:32:35 +00:00
Jim Grosbach
e76c0d6dee tidy up 80 column and whitespace 
llvm-svn: 111033
 2010-08-13 20:08:59 +00:00
Bill Wendling
bb2398331b It's better to have the arrays, which would trigger the creation of stack 
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
 2010-07-27 01:55:19 +00:00
Eric Christopher
3ae12eb078 Formatting. 
llvm-svn: 108926
 2010-07-20 21:05:58 +00:00
Eric Christopher
b397b001b9 Propagate alloca alignment information via variable size object frame 
information.

No functional change yet.

llvm-svn: 108583
 2010-07-17 00:28:22 +00:00
Evan Cheng
47f3a2db40 Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill slots so it's always false. 
llvm-svn: 107550
 2010-07-03 00:40:23 +00:00
Dan Gohman
b220af45eb Add explicit keywords. 
llvm-svn: 106300
 2010-06-18 19:04:37 +00:00
Rafael Espindola
f7170870cf Remove the TargetRegisterClass member from CalleeSavedInfo 
llvm-svn: 105344
 2010-06-02 20:02:30 +00:00
Evan Cheng
241d2c434e Implement @llvm.returnaddress. rdar://8015977. 
llvm-svn: 104421
 2010-05-22 01:47:14 +00:00
Bill Wendling
e346a38ed4 Rename "HasCalls" in MachineFrameInfo to "AdjustsStack" to better describe what 
the variable actually tracks.

N.B., several back-ends are using "HasCalls" as being synonymous for something
that adjusts the stack. This isn't 100% correct and should be looked into.

llvm-svn: 103802
 2010-05-14 21:14:32 +00:00
Chris Lattner
cfca39ef59 remove the MMI pointer from MachineFrameInfo. 
llvm-svn: 100415
 2010-04-05 05:57:52 +00:00
Chris Lattner
4a201bab8f prune #includes. 
llvm-svn: 100411
 2010-04-05 05:43:16 +00:00
Chris Lattner
248e65ec05 trim some spurious references to DwarfWriter. SDIsel really doesn't 
need it anymore, so don't addRequire it.

llvm-svn: 100400
 2010-04-05 04:09:20 +00:00
Evan Cheng
6eb7ff5bbf Teach MachineFrameInfo to track maximum alignment while stack objects are being 
created. This ensures it's updated at all time. It means targets which perform
dynamic stack alignment would know whether it is required and whether frame
pointer register cannot be made available register allocation.
This is a fix for rdar://7625239. Sorry, I can't create a reasonably sized test
case.

llvm-svn: 96069
 2010-02-13 01:56:41 +00:00
Jim Grosbach
0e1230b23b Factor the stack alignment calculations out into a target independent pass. 
No functionality change.

llvm-svn: 90336
 2009-12-02 19:30:24 +00:00
David Greene
7eb9716603 Remove duplicate APIs and state WRT spill objects. 
llvm-svn: 87106
 2009-11-13 14:42:06 +00:00
David Greene
58e7c6145b Add a bool flag to StackObjects telling whether they reference spill 
slots.  The AsmPrinter will use this information to determine whether to
print a spill/reload comment.

Remove default argument values.  It's too easy to pass a wrong argument
value when multiple arguments have default values.  Make everything
explicit to trap bugs early.

Update all targets to adhere to the new interfaces..

llvm-svn: 87022
 2009-11-12 20:49:22 +00:00
Chandler Carruth
766362c707 Move DataTypes.h to include/llvm/System, update all users. This breaks the last 
direct inclusion edge from System to Support.

llvm-svn: 85086
 2009-10-26 01:35:46 +00:00
Evan Cheng
5ab1ccfaee Distinquish stack slots from other stack objects. They (and fixed objects) get FixedStack PseudoSourceValues. 
llvm-svn: 84326
 2009-10-17 09:20:14 +00:00
Evan Cheng
6a4b23e001 Re-arrange some fields. 
llvm-svn: 84324
 2009-10-17 08:57:09 +00:00
Bob Wilson
841f543880 Update the description of MachineFrameInfo's OffsetAdjustment. The value of 
this adjustment does not change the direction or the signs of the object
offsets, and the details of the offset calculations can be target-specific.
Also mention that for most targets this value is only used to generate debug
info.

llvm-svn: 82750
 2009-09-25 05:30:55 +00:00
Chris Lattner
ed9a239afa convert some stuff to work on raw_ostreams instead of std::ostream. 
llvm-svn: 79803
 2009-08-23 01:12:47 +00:00
David Greene
e9ea0cbe04 Add missing includes. 
llvm-svn: 79469
 2009-08-19 21:22:18 +00:00
Jakob Stoklund Olesen
96890fb0cf Add MachineFrameInfo::getPristineRegisters(MBB) method. 
llvm-svn: 78911
 2009-08-13 16:19:33 +00:00
Daniel Dunbar
9bbadad09d Fix some comments referring to std::cerr. 
llvm-svn: 77931
 2009-08-03 01:02:24 +00:00
Dan Gohman
51d4e8db6a Fix a bunch of Doxygen syntax issues. Escape special characters, 
and put @file directives on their own comment line.

llvm-svn: 65920
 2009-03-03 02:55:14 +00:00
Dan Gohman
fc05cdda64 Extend X86's addFrameReference to add a MachineMemOperand for 
the frame reference. This will help post-RA scheduling determine
that spills to distinct stack slots are independent.

llvm-svn: 60486
 2008-12-03 18:11:40 +00:00
Dan Gohman
4560e0ae94 Add an explicit keyword. 
llvm-svn: 60457
 2008-12-03 01:55:47 +00:00
Bill Wendling
b6e2d60e7a - Rename stackprotector_{prologue,epilogue} to stackprotector_{create,check}. 
- Get rid of "HasStackProtector" in MachineFrameInfo.
- Modify intrinsics to tell which are doing what with memory.

llvm-svn: 58799
 2008-11-06 07:23:03 +00:00
Bill Wendling
08905ed703 Implement the stack protector stack accesses via intrinsics: 
- stackprotector_prologue creates a stack object and stores the guard there.

- stackprotector_epilogue reads the stack guard from the stack position created
  by stackprotector_prologue.

- The PrologEpilogInserter was changed to make sure that the stack guard is
  first on the stack frame.

llvm-svn: 58791
 2008-11-06 02:29:10 +00:00
Chris Lattner
d9f28870cf more comment cleanups. 
llvm-svn: 58316
 2008-10-28 05:32:08 +00:00
Chris Lattner
b2d576facf comment cleanups. 
llvm-svn: 58315
 2008-10-28 05:31:31 +00:00
Evan Cheng
28d9b3a8ad Re-apply 56683 with fixes. 
llvm-svn: 56748
 2008-09-27 01:56:22 +00:00
Bill Wendling
7273078850 Temporarily reverting r56683. This is causing a failure during the build of llvm-gcc: 
/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/xgcc -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.obj/./gcc/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/bin/ -B/Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/lib/ -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/include -isystem /Volumes/Gir/devel/llvm/clean/llvm-gcc.install/i386-apple-darwin9.5.0/sys-include -mmacosx-version-min=10.4 -O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Gir/devel/llvm/clean/llvm.obj/include -I/Volumes/Gir/devel/llvm/clean/llvm.src/include -fexceptions -fvisibility=hidden -DHIDE_EXPORTS -c ../../llvm-gcc.src/gcc/unwind-dw2-fde-darwin.c -o libgcc/./unwind-dw2-fde-darwin.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) && TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical register live information"), function runOnMachineFunction, file /Volumes/Gir/devel/llvm/clean/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp, line 311.
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:3521:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
{standard input}:3521:symbol: "_dwarf_reg_size_table" can't be undefined in a subtraction expression
{standard input}:3520:non-relocatable subtraction expression, "_dwarf_reg_size_table" minus "L20$pb"
...

llvm-svn: 56703
 2008-09-26 22:10:44 +00:00
Evan Cheng
9946443460 Fix @llvm.frameaddress codegen. FP elimination optimization should be disabled when frame address is desired. Also add support for depth > 0. 
llvm-svn: 56683
 2008-09-26 19:48:35 +00:00
Duncan Sands
46a694af35 Fix error: ‘std::ostream’ has not been declared 
when compiling with gcc 4.3.

llvm-svn: 54041
 2008-07-25 19:29:14 +00:00
Dan Gohman
1c8549fd7f Add a #include for the uses of uint64_t. 
llvm-svn: 54016
 2008-07-25 15:39:12 +00:00
Dan Gohman
3ede9e57a2 Add a #include <cassert>, since this file use assert. 
llvm-svn: 54003
 2008-07-25 00:44:19 +00:00
Dan Gohman
b379840cf7 Stack objects have nonnegative indices, not just positive indices. 
llvm-svn: 53418
 2008-07-10 19:57:25 +00:00
Evan Cheng
2fc7954878 Add a stack slot coloring pass. Not yet enabled. 
llvm-svn: 51934
 2008-06-04 09:18:41 +00:00
Evan Cheng
73dadf21ce Fix typos and comments. 
llvm-svn: 51165
 2008-05-15 22:13:02 +00:00
Evan Cheng
778a5e27b0 Make use of vector load and store operations to implement memcpy, memmove, and memset. Currently only X86 target is taking advantage of these. 
llvm-svn: 51140
 2008-05-15 08:39:06 +00:00