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28262 Commits

Author SHA1 Message Date
Dan Gohman
9a6a882979 Constant-fold ptrtoint+add+inttoptr to gep when the pointer is an 
array and the add is within range. This helps simplify expressions
expanded by ScalarEvolutionExpander.

llvm-svn: 71158
 2009-05-07 14:24:56 +00:00
Dan Gohman
b81e43b8c3 Factor out a common base class between SCEVCommutativeExpr and 
SCEVAddRecExpr. This eliminates redundant code for visiting
all the operands of an expression.

llvm-svn: 71157
 2009-05-07 14:00:19 +00:00
Argyrios Kyrtzidis
bd72fc132d Move the tablegen-produced DebugLoc handling into a AsmWriter::processDebugLoc function. 
No functionality change.

llvm-svn: 71156
 2009-05-07 13:55:51 +00:00
Evan Cheng
ef5794cb99 Code refactoring. 
llvm-svn: 71151
 2009-05-07 05:49:39 +00:00
Evan Cheng
1b99da6e30 Rename "loop aligner" pass to "code placement optimization" pass. 
llvm-svn: 71150
 2009-05-07 05:42:24 +00:00
Evan Cheng
1109c5103e Eliminate compiler warnings. 
llvm-svn: 71149
 2009-05-07 05:31:56 +00:00
Bill Wendling
6edd6ef74f Just turn aggressive stack coloring off at -O3. 
llvm-svn: 71140
 2009-05-07 01:33:38 +00:00
Bill Wendling
7c50dcd02e Temporarily revert r71010. It was causing massive failures during self-hosting. 
llvm-svn: 71138
 2009-05-07 01:27:25 +00:00
Argyrios Kyrtzidis
0f60e636c0 Make DwarfWriter::RecordInlinedFnStart more like the other DwarfWriter's methods: 
-Have it return a label ID
-Remove the unused Instruction parameter

No functionality change.

llvm-svn: 71132
 2009-05-07 00:16:31 +00:00
Dan Gohman
dee50585e0 Use stable_sort instead of plain sort to avoid the risk of generating 
trivially different code on different hosts (due to differing
std::sort implementations).

llvm-svn: 71124
 2009-05-06 22:54:33 +00:00
Bill Wendling
6e1b018958 - Move some debug fields to coincide with how GCC emits them. No functionality 
change.
- Reformatting.

llvm-svn: 71118
 2009-05-06 21:21:34 +00:00
Oscar Fuentes
a06115b0ab CMake: Updated lib/Target/PIC16/CMakeLists.txt. 
llvm-svn: 71115
 2009-05-06 20:40:05 +00:00
Dale Johannesen
b2cf4944c2 Use X86AddrNumOperands instead of magic constant one 
more place.  This fixes a bunch of x86-64 JIT regressions.
(Introduced when the value of the magic constant changed
in 68645.  At the time apparently nobody noticed; failures
were hidden in 70343-70439 by an unrelated bug, so showed
up again as "new" failures in 70440.)

llvm-svn: 71106
 2009-05-06 19:04:30 +00:00
Evan Cheng
0ee6696fd8 Do not use register as base ptr of pre- and post- inc/dec load / store nodes. 
llvm-svn: 71098
 2009-05-06 18:25:01 +00:00
Evan Cheng
ecc4cc83a8 Unbreak the build. 
llvm-svn: 71091
 2009-05-06 18:00:56 +00:00
David Greene
be8ff09e46 Make sure to use signed arithmetic in APInt to fix a regression. 
llvm-svn: 71090
 2009-05-06 17:39:26 +00:00
Dan Gohman
33e1f0fcb5 Simplify code by using SmallVector's pop_back_val() instead of 
separate back() and pop_back() calls.

llvm-svn: 71089
 2009-05-06 17:22:41 +00:00
Oscar Fuentes
24167db5ad CMake: Updated lib/CodeGen/CMakeLists.txt. 
llvm-svn: 71085
 2009-05-06 14:56:40 +00:00
Duncan Sands
28e07fdaa2 OCaml parameter attribute bindings from PR2752. 
Incomplete, but better than nothing.

llvm-svn: 71081
 2009-05-06 12:21:17 +00:00
Duncan Sands
938fde7e43 Add generic expansion of SUB when ADD and XOR 
are legal.  Based on a patch by Micah Villmow.

llvm-svn: 71078
 2009-05-06 11:29:50 +00:00
Duncan Sands
b71ad70b4e Fix PR3754: don't mark functions that wrap MallocInst with 
the readnone.  Since MallocInst is scheduled for deletion
it doesn't seem worth doing anything more subtle, such as
having mayWriteToMemory return true for MallocInst.

llvm-svn: 71077
 2009-05-06 08:42:00 +00:00
Sanjiv Gupta
cc6f71e64c Emit banksel and movlp instructions. 
Split large global data (both initialized and un-initialized) into multiple sections of <= 80 bytes.
Provide routines to manage PIC16 ABI naming conventions.

llvm-svn: 71073
 2009-05-06 08:02:01 +00:00
Duncan Sands
880eaf5278 Allow readonly functions to unwind exceptions. Teach 
the optimizers about this.  For example, a readonly
function with no uses cannot be removed unless it is
also marked nounwind.

llvm-svn: 71071
 2009-05-06 06:49:50 +00:00
Lang Hames
fcc5ebb1d4 Renamed Spiller classes (plus uses and related files) to VirtRegRewriter. 
llvm-svn: 71057
 2009-05-06 02:36:21 +00:00
Dan Gohman
39d3c78f6a Fix a copy+pasto in a comment. 
llvm-svn: 71035
 2009-05-05 23:02:38 +00:00
Dan Gohman
c1169472a2 Delete a FIXME which is no longer relevant, and add a FIXME that is. 
llvm-svn: 71033
 2009-05-05 22:59:55 +00:00
Evan Cheng
0d781df8dc Quotes should be printed before private prefix; some code clean up. 
llvm-svn: 71032
 2009-05-05 22:50:29 +00:00
Bill Wendling
265f9ffc43 Add dump method to DIDescriptor. 
llvm-svn: 71028
 2009-05-05 22:19:25 +00:00
Dan Gohman
5e839321f2 If a MachineBasicBlock has multiple ways of reaching another block, 
allow it to have multiple CFG edges to that block. This is needed
to allow MachineBasicBlock::isOnlyReachableByFallthrough to work
correctly. This fixes PR4126.

llvm-svn: 71018
 2009-05-05 21:10:19 +00:00
Bill Wendling
5f4fcbeb10 Temporarily reverting r71008. It was causing this failure: 
Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/
CodeGen/X86/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/test/
CodeGen/X86/change-compare-stride-1.ll
Failed with exit(1) at line 2
while running: grep {cmpq       $-478,} change-compare-stride-1.ll.tmp
child process exited abnormally

llvm-svn: 71013
 2009-05-05 20:49:46 +00:00
Evan Cheng
984da04cd0 Enable stack coloring with regs at -O3. 
llvm-svn: 71010
 2009-05-05 20:30:36 +00:00
David Greene
2bb2b3840e Handle overflow of 64-bit loop conditions. 
llvm-svn: 71008
 2009-05-05 20:22:36 +00:00
Chris Lattner
5cc9a36d1c Add basic support for code generation of 
addrspace(257) -> FS relative on x86.  Patch by Zoltan Varga!

llvm-svn: 70992
 2009-05-05 18:52:19 +00:00
Evan Cheng
138eed76c7 Revert part of 70929 that has to do with determining whether a SIB byte is needed. It causes a lot of x86_64 JIT failures. 
llvm-svn: 70986
 2009-05-05 18:18:57 +00:00
Chris Lattner
a96ef42a06 Do not require variable debug info nodes to have a compile unit. 
For implicit decls like "self" and "_cmd" in ObjC, these decls
should not have a location.

llvm-svn: 70964
 2009-05-05 04:55:56 +00:00
Evan Cheng
77e14276e0 Do not substitute if the new register isn't in the register class of the operand being updated. 
llvm-svn: 70953
 2009-05-05 00:46:16 +00:00
Evan Cheng
95ce4ffb36 Move getInstrOperandRegClass from the scheduler to TargetInstrInfo. 
llvm-svn: 70950
 2009-05-05 00:30:09 +00:00
Evan Cheng
ecfc8e8464 Do forward and backward substitution to eliminate loads and stores when possible. 
llvm-svn: 70937
 2009-05-04 23:13:13 +00:00
Evan Cheng
6843d3293b - Avoid the longer SIB encoding on x86_64 when it's not needed. 
- Synchronize instruction length computation code in X86InstrInfo with code in X86CodeEmitter.cpp
Patch by Zoltan Varga.

llvm-svn: 70929
 2009-05-04 22:49:16 +00:00
Dan Gohman
00c4ac3add Re-apply 70645, converting ScalarEvolution to use 
CallbackVH, with fixes. allUsesReplacedWith need to
walk the def-use chains and invalidate all users of a
value that is replaced. SCEVs of users need to be
recalcualted even if the new value is equivalent. Also,
make forgetLoopPHIs walk def-use chains, since any
SCEV that depends on a PHI should be recalculated when
more information about that PHI becomes available.

llvm-svn: 70927
 2009-05-04 22:30:44 +00:00
Dan Gohman
eecaa636fb Fix an 80-column violation. 
llvm-svn: 70925
 2009-05-04 22:23:18 +00:00
Dan Gohman
6bfe85b985 Fix doxygen comment syntax. 
llvm-svn: 70924
 2009-05-04 22:20:30 +00:00
Chris Lattner
7e3c94b55e Make DBG_STOPPOINT nodes, and therefore DBG_LABEL labels, get a DebugLoc, so that it 
shows up in -print-machineinstrs.  This doesn't appear to affect anything, but it was
weird for some DBG_LABELs to have DebugLocs but not all of them.

llvm-svn: 70921
 2009-05-04 22:10:05 +00:00
Dan Gohman
6c425d29e7 Constify a bunch of SCEV-using code. 
llvm-svn: 70919
 2009-05-04 22:02:23 +00:00
Dan Gohman
2973567a95 X86FastISel doesn't support the -tailcallopt ABI. 
llvm-svn: 70902
 2009-05-04 19:50:33 +00:00
Argyrios Kyrtzidis
f82d02a6ca Restore a comment. 
llvm-svn: 70900
 2009-05-04 19:23:45 +00:00
Anton Korobeynikov
262a397978 Fix code emission for conditional branches. 
Patch by Collin Winter!

llvm-svn: 70898
 2009-05-04 19:10:38 +00:00
Dan Gohman
f8f167320d Use true instead of 1 for a boolean value. And fix a copy+pasto 
in a comment.

llvm-svn: 70882
 2009-05-04 17:25:21 +00:00
Dan Gohman
83dfa97326 Trim unnecessary #includes. 
llvm-svn: 70880
 2009-05-04 17:11:06 +00:00
Duncan Sands
4c7021febf Teach capture tracking that readonly functions can 
only capture their arguments by returning them or
throwing an exception or not based on the argument
value.  Patch essentially by Frits van Bommel.

llvm-svn: 70876
 2009-05-04 16:50:29 +00:00