004937bbd9
Add facility to dump pass manager structure
...
to make it easier to understand failure.
llvm-svn: 40567
2007-07-27 20:06:09 +00:00
ce38853cc6
Trampoline codegen support for X86-32.
...
llvm-svn: 40566
2007-07-27 20:02:49 +00:00
381a2a26e9
Fix edge cases in handling basic block split.
...
llvm-svn: 40564
2007-07-27 19:13:43 +00:00
e3206cb425
Use SmallPtrSet.
...
llvm-svn: 40560
2007-07-27 18:34:27 +00:00
1a39a2d13d
VStudio compiler errors and placing Function*->ExFunc map under ManagedStatic control.
...
This commit fixes two things. One is a pair of VStudio compiler errors stemming from variables
which defined within the for loop statement and also within the body of the for loop. I fixed these
by renaming one of the two variables. Additionally, I've made the Function*->ExFunc map in
ExternalFunctions.cpp a ManagedStatic object, so that cleanup will be done on llvm_shutdown. In repeated
uses of the interpreter, where the same Function* address may get used for completely differnet functions,
this was causing a crash.
llvm-svn: 40558
2007-07-27 18:26:35 +00:00
49f037ac29
Allow SmallPtrSet to hold pointers to const data.
...
llvm-svn: 40556
2007-07-27 18:07:02 +00:00
4788552deb
Re-apply 40504, but with a fix for the segfault it caused in oggenc:
...
Make the alignedload and alignedstore patterns always require 16-byte
alignment. This way when they are used in the "Fs" instructions, in which
a vector instruction is used for a scalar purpose, they can still require
the full vector alignment. And add a regression test for this.
llvm-svn: 40555
2007-07-27 17:16:43 +00:00
5d49bcdce0
It seems logical that InReg should be incompatible
...
with StructReturn and ByVal, so make it so.
llvm-svn: 40554
2007-07-27 16:45:18 +00:00
07c9066238
As the number of parameter attributes increases,
...
Verifier::visitFunction is suffering a combinatorial
explosion due to the number of mutually incompatible
attributes. This patch tidies the whole thing up
using attribute masks. While there I fixed some
small bugs: (1) the ByVal attribute tests cast a
type to a pointer type, which can fail. Yes, the
fact it is of a pointer type is checked before,
but a failing check does not cause the program
to exit, it continues on outputting further errors;
(2) Nothing was checking that an sret attribute is
on the first parameter; (3) nothing was checking that
a function for which isStructReturn() is true has a
parameter with the sret attribute and vice-versa (I
don't think it is possible for this to go wrong, but
it seems right to check it).
llvm-svn: 40553
2007-07-27 15:09:54 +00:00
644f917358
Support for trampolines, except for X86 codegen which is
...
still under discussion.
llvm-svn: 40549
2007-07-27 12:58:54 +00:00
14bbb15f07
Move subreg lowering pass to be right after regalloc, per feedback.
...
llvm-svn: 40548
2007-07-27 07:36:14 +00:00
931de40afa
Reverting 40504 for now. It's breaking oggenc.
...
llvm-svn: 40547
2007-07-27 01:37:47 +00:00
a51e0a3d8d
Fix thinko. Update return status appropriately.
...
llvm-svn: 40546
2007-07-26 20:21:42 +00:00
0f692f27a3
Fix a bug introduced in my last commit.
...
llvm-svn: 40542
2007-07-26 18:57:04 +00:00
dbf23ccaa0
Fix a couple more bugs in the phi construction by pulling in code that does
...
almost the same things from LCSSA.
llvm-svn: 40540
2007-07-26 18:26:51 +00:00
d204d08b97
Make sure epilogue esp adjustment is placed before any terminator and pop instructions.
...
llvm-svn: 40538
2007-07-26 17:45:41 +00:00
936d17aa1b
Don't pollute the meaning of isUnpredicatedTerminator.
...
llvm-svn: 40537
2007-07-26 17:32:14 +00:00
ca6e041903
Minor bug.
...
llvm-svn: 40535
2007-07-26 17:02:45 +00:00
30f060be80
Fix the alias analysis query in DAGCombiner to not add in two
...
offsets. The SrcValueOffset values are the real offsets from the
SrcValue base pointers.
llvm-svn: 40534
2007-07-26 16:14:06 +00:00
6e853bc73f
Move the GET_SIDE_EFFECT_INFO logic from isInstructionTriviallyDead
...
to Instruction::mayWriteToMemory, fixing a FIXME, and helping
various places that call mayWriteToMemory directly.
llvm-svn: 40533
2007-07-26 16:06:08 +00:00
eb47d9213c
Remove a bogus return statement, what appears to have been a pasto
...
from Relation::contradicts in Relation::incorporate.
llvm-svn: 40531
2007-07-26 15:29:35 +00:00
f2af2bb6aa
DummyInst's member functions don't need to be virtual.
...
llvm-svn: 40530
2007-07-26 15:25:08 +00:00
c9edd977ea
In the .loc directive, print the fields as "debug" fields, so they
...
don't get decorated as if for immediate fields for instructions.
llvm-svn: 40529
2007-07-26 15:24:15 +00:00
cecd4b3793
Fix a whitespace difference between CMPSSrr and CMPSDrr.
...
llvm-svn: 40528
2007-07-26 15:11:50 +00:00
e9d738cefc
Add a MachineFunction pass, which runs post register allocation, that turns subreg insert/extract instruction into register copies. This ensures correct code gen if the coalescer isn't able to remove all subreg instructions.
...
llvm-svn: 40521
2007-07-26 08:18:32 +00:00
18603b03e1
Teach DAG scheduling how to properly emit subreg insert/extract machine instructions. PR1350
...
llvm-svn: 40520
2007-07-26 08:12:07 +00:00
cde0ee5221
Add target independent MachineInstr's to represent subreg insert/extract in MBB's. PR1350
...
llvm-svn: 40518
2007-07-26 07:48:21 +00:00
ce5185b181
Same goes for constantpool, etc.
...
llvm-svn: 40517
2007-07-26 07:35:15 +00:00
a8fc0e527b
Add selection DAG nodes for subreg insert/extract. PR1350
...
llvm-svn: 40516
2007-07-26 07:34:40 +00:00
0dbc152d2e
Remove subreg index from MachineInstr's and also keep vregs as unsigned when adding operands.
...
llvm-svn: 40514
2007-07-26 07:00:46 +00:00
3fead96121
Fix infinite recursion for when extract_vector_elt is legal. Unfortunately no public targets use this code-path, so no test.
...
llvm-svn: 40510
2007-07-26 03:33:13 +00:00
cd97a21064
Add support for 3 element 32-bit vector ValueTypes.
...
llvm-svn: 40506
2007-07-26 01:46:52 +00:00
8455bd3fae
Remove X86ISD::LOAD_PACK and X86ISD::LOAD_UA and associated code from the
...
x86 target, replacing them with the new alignment attributes on memory
references.
llvm-svn: 40504
2007-07-26 00:31:09 +00:00
3b8cc30a61
Fix what is _hopefully_ the last corner case for loops.
...
llvm-svn: 40503
2007-07-25 23:54:42 +00:00
630c1f75b8
Mac OS X x86-64 lower 4G address is not available.
...
llvm-svn: 40502
2007-07-25 23:41:36 +00:00
952aa6988b
Mac OS X should use 0x90 to fill in gaps to satisfy function alignment requirements.
...
llvm-svn: 40501
2007-07-25 23:36:05 +00:00
86eb3fd97d
EmitAlignment() also emits optional fill value.
...
llvm-svn: 40500
2007-07-25 23:35:07 +00:00
5c6a31e9a0
Functions with LinkOnce and weak linkage still need to be aligned. Doh.
...
llvm-svn: 40499
2007-07-25 22:28:16 +00:00
8707412593
My last commit was not correct for nested loops. Fix it, and add a testcase for it.
...
llvm-svn: 40498
2007-07-25 22:19:40 +00:00
3c67004d47
Fix an infinite loop on 300.twolf.
...
llvm-svn: 40497
2007-07-25 22:03:06 +00:00
9b796348bd
Fix a bug in non-local memdep that was causing an infinite loop on 175.vpr.
...
llvm-svn: 40495
2007-07-25 21:26:36 +00:00
7bf26ee444
Fix a bug that was causing GVN to crash on 252.eon.
...
llvm-svn: 40494
2007-07-25 21:13:41 +00:00
5e5599b7ce
Add basic support for performing whole-function RLE.
...
Note: This has not yet been thoroughly tested. Use at your own risk.
llvm-svn: 40489
2007-07-25 19:57:03 +00:00
cf0a5349de
Don't ignore the return value of AsmPrinter::doInitialization and
...
AsmPrinter::doFinalization.
llvm-svn: 40487
2007-07-25 19:33:14 +00:00
33227115b9
Add BasicInliner interface.
...
This interface allows clients to inline bunch of functions with module
level call graph information.:wq
llvm-svn: 40486
2007-07-25 18:00:25 +00:00
5805c46e8f
Fix debug info and globals filled with zeros.
...
llvm-svn: 40483
2007-07-25 03:48:45 +00:00
64b64ae591
Minor cleanup:
...
- Split EH and debug infiormation
- Make DwarfWriter more verbose in some cases
llvm-svn: 40481
2007-07-25 00:06:28 +00:00
f0bb12848f
Add const to CanBeFoldedBy, CheckAndMask, and CheckOrMask.
...
llvm-svn: 40480
2007-07-24 23:00:27 +00:00
f906c7286f
Use movaps to load a v4f32 build_vector of all-constant values into a
...
register instead of loading each element individually.
llvm-svn: 40478
2007-07-24 22:55:08 +00:00
d998be79cc
Add initial support for non-local memory dependence analysis.
...
NOTE: This has only been cursorily tested. Expected improvements soon.
llvm-svn: 40476
2007-07-24 21:52:37 +00:00
4c54024319
Make the copy constructor of SmallPtrSet much faster.
...
llvm-svn: 40474
2007-07-24 21:31:23 +00:00
0c46451d2b
Heal EH handling stuff by emitting correct offsets to callee-saved registers.
...
Pretty hackish, but code itself is dirty mess, so we won't make anything worse. :)
llvm-svn: 40472
2007-07-24 21:07:39 +00:00
ab6ec2eac2
Add a GVN pass, using the value numbering code I developed for GVNPRE and the
...
load elimination code from RedundantLoadElimination.
llvm-svn: 40469
2007-07-24 17:55:58 +00:00
a2e618712d
Make output match actual condition tested. Thanks, Duncan.
...
llvm-svn: 40464
2007-07-24 14:35:44 +00:00
13b25df0e9
Unreachable block is not a root node in post dominator tree.
...
llvm-svn: 40458
2007-07-24 01:02:25 +00:00
9baaaa52e6
Rename a lot of things to change FastDLE to RedundantLoadElimination.
...
llvm-svn: 40457
2007-07-24 00:17:04 +00:00
7292a4a93f
Rename FastDLE as RedundantLoadElimination.
...
llvm-svn: 40456
2007-07-24 00:08:38 +00:00
0f8fd66a62
1. Make sure we print the Function Value for parameter attribute errors
...
2. Fold an if statement into the Assert1 macro call.
llvm-svn: 40455
2007-07-23 23:46:43 +00:00
6c2b393f0c
Add better verification of attributes on function types. It is not permitted
...
to use sret or inreg on the function. It is equally illegal to use noreturn
or nounwind on a parameter; they only go with the function. This patch
enforces these rules.
llvm-svn: 40453
2007-07-23 23:09:55 +00:00
5e68f0c93d
Don't delete volatile loads. Doing so is not safe.
...
llvm-svn: 40448
2007-07-23 22:05:54 +00:00
6aba721425
Add FastDLE, the load-elimination counterpart of FastDSE.
...
llvm-svn: 40445
2007-07-23 21:48:08 +00:00
b6a8ae20c7
Fix some uses of dyn_cast to be uses of cast.
...
llvm-svn: 40443
2007-07-23 20:24:29 +00:00
17f68f95d8
Delete the svn:executable property on these files, which aren't executable.
...
llvm-svn: 40441
2007-07-23 19:26:08 +00:00
5a201baba9
Fix file header.
...
llvm-svn: 40440
2007-07-23 18:30:37 +00:00
4512cd2cab
completely remove a transformation that is unsafe in the face of
...
undefs.
llvm-svn: 40439
2007-07-23 17:10:17 +00:00
3d88e9940a
Add missing SSE builtins:
...
__builtin_ia32_cvtss2si64
__builtin_ia32_cvttss2si64
__builtin_ia32_cvtsi642ss
__builtin_ia32_cvtsd2si64
__builtin_ia32_cvttsd2si64
__builtin_ia32_cvtsi642sd
llvm-svn: 40411
2007-07-23 03:07:27 +00:00
71ce927d7b
Report an error if one occurs in releaseModule.
...
llvm-svn: 40405
2007-07-22 21:39:37 +00:00
5e39293e62
Apply temporary work around to fix llvm mis-compilation
...
reported in PR 1556.
llvm-svn: 40133
2007-07-21 00:34:29 +00:00
ac1591be42
No more noResults.
...
llvm-svn: 40132
2007-07-21 00:34:19 +00:00
147d9fa57d
Don't assume that only Uses can be kills. Defs are marked as kills initially
...
when there are no uses. This fixes a dangling-pointer bug, where pointers to
deleted instructions were not removed from kills lists. More info here:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2007-July/009749.html
llvm-svn: 40131
2007-07-20 23:17:34 +00:00
363485da82
zext(undef) = 0 and sext(undef) = 0, not undef.
...
This hopefully fixes a miscompilation of TargetData.cpp when self hosting.
llvm-svn: 40125
2007-07-20 22:09:02 +00:00
d82e4a19cc
this xform is already done by the constant folder.
...
llvm-svn: 40124
2007-07-20 22:06:41 +00:00
9d5df0a5f6
Added -print-emitted-asm to print out JIT generated asm to cerr.
...
llvm-svn: 40123
2007-07-20 21:56:13 +00:00
8adae86688
Use SmallVector instead of std::vector.
...
llvm-svn: 40109
2007-07-20 18:04:54 +00:00
e31a61eeca
Optimize alignment of loads and stores.
...
llvm-svn: 40102
2007-07-20 16:34:21 +00:00
2be91fcdd8
Place SCCPSolver also in the anonymous namespace. This
...
pacifies g++-4.2.
llvm-svn: 40089
2007-07-20 08:56:21 +00:00
5bd6c3f2c4
Fix a bug where we were marking GEP expressions with the wrong opcode.
...
llvm-svn: 40085
2007-07-20 08:19:20 +00:00
edb926bfe3
When removing instructions from the analysis, be sure to check the confirmed
...
flag when determining what to do with dependencies.
llvm-svn: 40079
2007-07-20 06:16:07 +00:00
8fefeffb37
Because we promote SSE logical ops and loads to v2i64, we often end up generate
...
code that cross integer / floating point domains (e.g. generate pxor / pand for
logical ops on floating point value, movdqa to load / store floating point SSE
values). Given that, it's better to use movaps instead of movdqa and movups
instead of movdqu. They have the same latency but the "aps" variants are one
byte shorter.
If the domain crossing problem is a real performance issue, then we will have to
fix it with dynamic programming based isel.
llvm-svn: 40076
2007-07-20 00:27:43 +00:00
9081ab8127
Oops. These stores actually produce results.
...
llvm-svn: 40074
2007-07-20 00:20:46 +00:00
64738536b3
Fix custom lowering of SSE FXOR.
...
llvm-svn: 40071
2007-07-19 23:36:01 +00:00
7ca3555bfa
Fix patterns so we isel the xorps, etc. for floating pt logical SSE ops. DAG combiner may fold away the (bit_convert (load)).
...
llvm-svn: 40070
2007-07-19 23:34:10 +00:00
314e1cb7ee
For PR1553:
...
Change the keywords for the zext and sext parameter attributes to be
zeroext and signext so they don't conflict with the keywords for the
instructions of the same name. This gets around the ambiguity.
llvm-svn: 40069
2007-07-19 23:13:04 +00:00
68ee4e8efc
Hush a noisy warning from GCC 4.2 about overflow during conversion by using
...
the type "unsigned" instead of uintptr_t for a 1-bit structure field.
llvm-svn: 40066
2007-07-19 21:05:30 +00:00
f9e6542969
Make val_replace fail early, which reduces the time to optimize 403.gcc to 14.8s.
...
llvm-svn: 40064
2007-07-19 19:57:13 +00:00
a273d1cd3a
Verify loop info.
...
llvm-svn: 40062
2007-07-19 18:02:32 +00:00
60f28bff4c
Replace mysterious code causing a g++-4.2 warning
...
with hopefully correct code that pleases g++-4.2.
llvm-svn: 40051
2007-07-19 09:42:01 +00:00
85ec2af554
As pointed out by g++-4.2, the original code didn't do
...
what it thought it was doing.
llvm-svn: 40044
2007-07-19 07:31:58 +00:00
ee99010782
Remember to free the heap allocated array if we're not going to use it.
...
llvm-svn: 40043
2007-07-19 06:45:33 +00:00
6aa17f1def
Use SmallVector and DenseMap in even more places.
...
With this, the time to optimize 403.gcc is down to 15.1s.
llvm-svn: 40042
2007-07-19 06:37:56 +00:00
75a244d6eb
Change ValueTable to use a DenseMap for mapping expressions to value numbers.
...
This results in a slight speedup for 403.gcc.
llvm-svn: 40040
2007-07-19 06:13:15 +00:00
ef43253e2e
Set up ground work to verify preserved analysis info.
...
llvm-svn: 40039
2007-07-19 05:36:09 +00:00
6a4ff8549b
Move some sets and maps to SmallPtrSet and DenseMap respectively. This
...
reduces the time to optimize 403.gcc from 17.6s to 16.4s.
llvm-svn: 40036
2007-07-19 03:32:44 +00:00
186e0d8b0a
After a basic block is split into two parts,
...
second part dominates all the blocks dominated
by original basic block. And first part dominates
second part.
llvm-svn: 40035
2007-07-19 02:29:24 +00:00
de5901523c
Now this temp. fix is not required.
...
llvm-svn: 40034
2007-07-19 02:22:21 +00:00
94b5a80b93
Change instruction description to split OperandList into OutOperandList and
...
InOperandList. This gives one piece of important information: # of results
produced by an instruction.
An example of the change:
def ADD32rr : I<0x01, MRMDestReg, (ops GR32:$dst, GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
=>
def ADD32rr : I<0x01, MRMDestReg, (outs GR32:$dst), (ins GR32:$src1, GR32:$src2),
"add{l} {$src2, $dst|$dst, $src2}",
[(set GR32:$dst, (add GR32:$src1, GR32:$src2))]>;
llvm-svn: 40033
2007-07-19 01:14:50 +00:00
22b0c344db
Only adjust esp around calls in presence of alloca.
...
llvm-svn: 40030
2007-07-19 00:42:58 +00:00
7b5b06805a
Only adjust esp around calls in presence of alloca.
...
llvm-svn: 40028
2007-07-19 00:42:05 +00:00
8a1d1ac925
Fix typo.
...
llvm-svn: 40025
2007-07-18 23:50:19 +00:00
bb8ea8cefc
Fix dominator info update to accommodate CFG changes.
...
This fixes PR1559.
llvm-svn: 40024
2007-07-18 23:48:20 +00:00
a8d152a22a
Add comment.
...
llvm-svn: 40022
2007-07-18 23:34:48 +00:00
8941071ae1
Use MOV instead of LEA to restore ESP if callee-saved frame size is 0; if previous instruction updates esp, fold it in.
...
llvm-svn: 40018
2007-07-18 21:26:06 +00:00
68659280fa
Add constructor overloads for LoadInst and StoreInst that insert at the
...
end of a BasicBlock and have an alignment parameter.
llvm-svn: 40016
2007-07-18 20:51:11 +00:00
776962a97a
Implement initial memory alignment awareness for SSE instructions. Vector loads
...
and stores that have a specified alignment of less than 16 bytes now use
instructions that support misaligned memory references.
llvm-svn: 40015
2007-07-18 20:23:34 +00:00
e21f270858
Fix an issue where assignments that caused a SmallPtrSet to become non-small
...
would result in calling realloc() on a null pointer. Instead, if we encounter
this situation, make a normal call to malloc().
llvm-svn: 40014
2007-07-18 19:54:15 +00:00
a7b65c30a3
It's not necessary to do rounding for alloca operations when the requested
...
alignment is equal to the stack alignment.
llvm-svn: 40004
2007-07-18 16:29:46 +00:00
f314055706
New entry.
...
llvm-svn: 39998
2007-07-18 08:21:49 +00:00
97b5dc63d7
Fold prologue esp update when possible.
...
llvm-svn: 39984
2007-07-17 21:26:42 +00:00
f9ef70560e
Dead code.
...
llvm-svn: 39979
2007-07-17 20:01:19 +00:00
b2bb4b4040
Make sure not to break eh_return.
...
llvm-svn: 39978
2007-07-17 18:40:47 +00:00
27ba94bf3b
Update.
...
llvm-svn: 39977
2007-07-17 18:39:45 +00:00
67e2e22e97
Missed the case where alloca is used but the stack size (not including callee-saved portion) is zero. Thanks Dan.
...
llvm-svn: 39974
2007-07-17 18:03:34 +00:00
6389ef9854
detect invalid combination of sret and byval
...
llvm-svn: 39971
2007-07-17 13:34:23 +00:00
9ae2eb43d8
Use push / pop for prologues and epilogues.
...
llvm-svn: 39967
2007-07-17 07:59:08 +00:00
396156e00b
no email addrs in file headers
...
llvm-svn: 39962
2007-07-17 05:56:43 +00:00
5060fd0fa3
Unbreak the build by putting calls to free into the implementation file and
...
having that implementation file #include <cstdlib>.
llvm-svn: 39952
2007-07-17 02:16:12 +00:00
09f86993bd
Take advantage of undefined behavior if the source program tries to GEP
...
beyond the end of an alloca to make FastDSE faster and more aggressive.
llvm-svn: 39945
2007-07-16 23:34:39 +00:00
7fcaaadf1c
Add support for walking up memory def chains, which enables finding many more
...
dead stores on 400.perlbench.
llvm-svn: 39929
2007-07-16 21:52:50 +00:00
81990a3fc3
Use realloc() to (potentially) resize the contents of SmallPtrSet in place.
...
llvm-svn: 39926
2007-07-16 21:27:44 +00:00
3363f4ad96
Return Undef if the block has no dominator. This was required to allow
...
llvm-gcc build to succeed. Without this change it fails in libstdc++
compilation. This causes no regressions in dejagnu tests. However,
someone who knows this code better might want to review it.
llvm-svn: 39924
2007-07-16 21:03:44 +00:00
72efc04d8e
Use ConstantFoldFP for folding all unary floating-point operations which may
...
have an error, and refector out the code for binary operators into
ConstantFoldBinaryFP and use it for all binary floating-point operations
which may have an error. These functions still rely exclusively on errno
to detect errors though.
llvm-svn: 39923
2007-07-16 15:26:22 +00:00
06c60b6032
Fix comments about vectors to use the current wording.
...
llvm-svn: 39921
2007-07-16 14:29:03 +00:00
640fd5124d
Repair a regression in Transforms/InstCombine/mul.ll that Reid noticed.
...
llvm-svn: 39896
2007-07-16 04:15:34 +00:00
b7c0c8a350
Start adding and cleaning up comments.
...
llvm-svn: 39894
2007-07-16 02:58:37 +00:00
5246026c8c
Handle decrementing loops properly. Fixes PR1533.
...
Always pass the constant as the second parameter to HowManyLessThans.
Remove obsolete "isSigned" parameter.
llvm-svn: 39893
2007-07-16 02:08:00 +00:00
d4fef8dbca
Implement shift-simplify.ll:test[45].
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First teach instcombine that sign bit checks only demand the
sign bit, this allows simplify demanded bits to hack on
expressions better.
Second, teach instcombine that ashr is useless if only the
sign bit is demanded.
llvm-svn: 39880
2007-07-15 20:54:51 +00:00
06205d5567
Implement shift-simplify.ll:test3, turning:
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(X << 31) <s 0 --> (X&1) != 0
This happens dozens of times in the CFE.
llvm-svn: 39879
2007-07-15 20:42:37 +00:00
ddc2f9ba57
Clarify the language. Pointed out by Duncan Sands.
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llvm-svn: 39857
2007-07-14 17:41:03 +00:00
d20f485866
Fix the build. Patch from Holger Schurig.
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llvm-svn: 39856
2007-07-14 15:11:14 +00:00
383a324735
Long live the exception handling!
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This patch fills the last necessary bits to enable exceptions
handling in LLVM. Currently only on x86-32/linux.
In fact, this patch adds necessary intrinsics (and their lowering) which
represent really weird target-specific gcc builtins used inside unwinder.
After corresponding llvm-gcc patch will land (easy) exceptions should be
more or less workable. However, exceptions handling support should not be
thought as 'finished': I expect many small and not so small glitches
everywhere.
llvm-svn: 39855
2007-07-14 14:06:15 +00:00
39519f5c41
Use maximal intersection algorithm exclusively. Fixes miscompile bug.
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llvm-svn: 39852
2007-07-14 04:28:04 +00:00
61b4a265ee
Add alternate ConstantRange intersection algorithm.
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llvm-svn: 39851
2007-07-14 02:51:34 +00:00
4cd1413f15
Make LCSSA a loop pass.
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llvm-svn: 39844
2007-07-13 23:57:11 +00:00
1fae1cd3e1
Fix for PR1540: Specify F0, F1 are sub-registers of D0, etc.
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llvm-svn: 39843
2007-07-13 23:55:50 +00:00
d975efab16
Handle GEPs with all-zero indices in the same way we handle pointer-pointer bitcasts. Also, fix a potentia infinite loop.
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This brings FastDSE to parity with old DSE on 175.vpr.
llvm-svn: 39839
2007-07-13 22:50:48 +00:00
29ccf8ba52
Disable claims to preserve analysis until open issues are resolved.
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llvm-svn: 39834
2007-07-13 21:53:42 +00:00
ff72788863
Fix the comment for LegalizeOp to more accurately reflect what it does.
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llvm-svn: 39827
2007-07-13 20:14:11 +00:00
80f9f077e3
Don't call SimplifyVBinOp for non-vector operations, following earlier review
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feedback. This theoretically makes the common (scalar) case more efficient.
llvm-svn: 39823
2007-07-13 20:03:40 +00:00
9c9ef21432
Be more aggressive in removing dead stores, and in removing instructions trivially dead after DSE.
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This drastically improves the effect of FastDSE on kimwitu++.
llvm-svn: 39819
2007-07-13 18:26:26 +00:00
4dc35dbd3e
Modify previous patch per review comments.
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llvm-svn: 39817
2007-07-13 17:31:29 +00:00
2182f06f2d
Skeleton of post-RA scheduler; doesn't do anything yet.
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Change name of -sched option and DEBUG_TYPE to
pre-RA-sched; adjust testcases.
llvm-svn: 39816
2007-07-13 17:13:54 +00:00
2b4d9b684f
Fix CodeGen/Generic/print-arith-fp.ll on sparc (PR1551)
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llvm-svn: 39813
2007-07-13 16:24:10 +00:00
32c4a05dd4
Reimplement removing stores to allocas at the end of a function. This should be safe now.
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llvm-svn: 39790
2007-07-12 21:41:30 +00:00
d4451dee1e
Make the condition-checking for free with non-trivial dependencies more correct.
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llvm-svn: 39789
2007-07-12 18:08:51 +00:00
5e06995b3d
Remove the end-block handling code. It was unsafe, and making it safe would have resulted in falling back to the slow DSE case. I need to think some more about the right way to handle this.
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llvm-svn: 39788
2007-07-12 17:52:20 +00:00
85ee72f7ba
ARM: make branch folder remove unconditional branches
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following jump tables that it earlier inserted. This
would be OK on other targets but is needed for correctness
only on ARM (constant islands needs to find jump tables).
llvm-svn: 39782
2007-07-12 16:45:35 +00:00
0263dd1d7f
The type ids making up a filter are unsigned, and
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should be output as unsigned values. Checked against
gcc.
llvm-svn: 39775
2007-07-12 13:51:39 +00:00
b8bca52c7d
checked in as obvious,
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thanks Benoit Boissinot!
llvm-svn: 39774
2007-07-12 13:31:38 +00:00
bdc69595d9
another missed SSE optimization
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llvm-svn: 39772
2007-07-12 06:31:38 +00:00
1e1bace52b
Let MemoryDependenceAnalysis take care of updating AliasAnalysis.
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llvm-svn: 39769
2007-07-12 00:06:21 +00:00
fac4d1f014
Preserve analysis info.
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llvm-svn: 39767
2007-07-11 23:47:28 +00:00
bcda5e20c9
Added support for Mips specific GAS directives
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Fixed print immediate
Fixed Identation on MipsISelDAGToDAG.cpp
llvm-svn: 39764
2007-07-11 23:24:41 +00:00
6c8c748e4d
Added support for framepointer
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Prologue/Epilogue support fp,ra save/restore and use the stack frame the right
way!
llvm-svn: 39763
2007-07-11 23:21:31 +00:00
aa07172340
Handle the case where an entire structure is freed, and its dependency is a store to a field within
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that structure.
Also, refactor the runOnBasicBlock() function, splitting some of the special cases into separate functions.
llvm-svn: 39762
2007-07-11 23:19:17 +00:00
77dbdcabf2
Now that stack is represented the right way, LOA starts at 0
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llvm-svn: 39761
2007-07-11 23:17:41 +00:00
4449e5dd7f
Fixed AddLiveOut issues
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FI's created the write way to represent Mips stack
llvm-svn: 39760
2007-07-11 23:16:16 +00:00
c5affeccbd
Removed unused immediate PatLeaf, fixed lui instruction
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llvm-svn: 39759
2007-07-11 22:47:02 +00:00
753e37027f
Added MipsMachineFunction class, to hold Mips dinamic stack info when inserting Prologue/Epilog
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llvm-svn: 39758
2007-07-11 22:44:21 +00:00
1441470be8
Add support for eliminate stores to stack-allocated memory locations at the end
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of a function.
llvm-svn: 39754
2007-07-11 21:06:56 +00:00
e720144837
Handle eliminating stores that occur right before a free.
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llvm-svn: 39753
2007-07-11 20:38:34 +00:00
3d70855dd2
Handle packed structs in the CBackend.
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llvm-svn: 39752
2007-07-11 19:56:53 +00:00
6b6d1f685f
Missed a couple of places where new instructions are added due to spill / restore.
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llvm-svn: 39748
2007-07-11 19:17:18 +00:00
bf971aafb6
Clean up a few things based on Chris' feedback.
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llvm-svn: 39747
2007-07-11 19:03:09 +00:00
ccecbcd779
Adding ability to demote phi to stack.
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llvm-svn: 39744
2007-07-11 18:41:34 +00:00
e59411d056
Fix hang compiling TimberWolf (allow for islands
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of size other than 4).
llvm-svn: 39743
2007-07-11 18:32:38 +00:00
09d73c0305
Assert when TLS is not implemented.
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llvm-svn: 39737
2007-07-11 17:19:51 +00:00
03b274911f
Exception handling has been implemented.
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llvm-svn: 39732
2007-07-11 16:59:20 +00:00
6e544a9cca
Fix an oversight: for modules with no other identifying target info,
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the sparc backend should be preferred when running on sparcs.
llvm-svn: 39142
2007-07-11 16:32:10 +00:00
d5ea194b6c
If assertions are not enabled, we should return False here.
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llvm-svn: 38535
2007-07-11 08:47:55 +00:00
74a541024f
No longer need to track last def / use.
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llvm-svn: 38534
2007-07-11 08:47:44 +00:00
bec7a20c5e
Fix for PR1545: Revamp code that update kill information due to register reuse.
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llvm-svn: 38525
2007-07-11 05:28:39 +00:00
5e72db3f7f
Add FastDSE, a new algorithm for doing dead store elimination. This algorithm is not as accurate
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as the current DSE, but it only a linear scan over each block, rather than quadratic. Eventually
(once it has been improved somewhat), this will replace the current DSE.
NOTE: This has not yet been extensively tested.
llvm-svn: 38517
2007-07-11 00:46:18 +00:00
d9034f717a
Make this work with GLIBCXX_DEBUG.
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llvm-svn: 38516
2007-07-10 22:00:30 +00:00
94579dbd2e
Didn't mean the last commit. Revert.
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llvm-svn: 38515
2007-07-10 22:00:16 +00:00
68471d263f
Fix fp_constant_op failure.
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llvm-svn: 38514
2007-07-10 21:53:30 +00:00
effa7467b6
Update.
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llvm-svn: 38513
2007-07-10 21:49:47 +00:00
23f631d87c
fix 80 columnn violations, increasing the world's
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pedantic satisfaction level.
llvm-svn: 38512
2007-07-10 20:53:41 +00:00
c432490b4c
Calculate the size of a array allocation correctly.
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llvm-svn: 38511
2007-07-10 20:48:38 +00:00
faf9e42479
Fix a crasher when finding the dependency of a call.
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llvm-svn: 38510
2007-07-10 20:39:07 +00:00
1279eaf776
Make this pass registration static as well.
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llvm-svn: 38509
2007-07-10 20:21:08 +00:00
084d3c2e2f
Make the pass registration static.
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llvm-svn: 38508
2007-07-10 20:20:19 +00:00
f51bd666d9
add a note
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llvm-svn: 38507
2007-07-10 20:03:50 +00:00
9521a564fb
check for correct usage of the byval attribute
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llvm-svn: 38506
2007-07-10 19:28:12 +00:00
76547349c1
During module cloning copy aliases too. This fixes PR1544
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llvm-svn: 38505
2007-07-10 19:07:35 +00:00
1fa6132e85
Handle vaarg instructions correctly.
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llvm-svn: 38504
2007-07-10 18:43:15 +00:00
60d6f96da3
Change the peep for EXTRACT_VECTOR_ELT of BUILD_PAIR to look for
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the new CONCAT_VECTORS node type instead, as that's what legalize
uses now. And add a peep for EXTRACT_VECTOR_ELT of INSERT_VECTOR_ELT.
llvm-svn: 38503
2007-07-10 18:20:44 +00:00
94a21dd1e0
Volatile loads and stores depend on each other.
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llvm-svn: 38502
2007-07-10 18:11:42 +00:00
9d41b311fb
Remove clobbersPred. Add an OptionalDefOperand to instructions which have the 's' bit.
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llvm-svn: 38501
2007-07-10 18:08:01 +00:00
0867337075
Remove clobbersPred.
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llvm-svn: 38500
2007-07-10 18:07:08 +00:00
9c88457abe
Add support for finding the dependencies of call and invoke instructions.
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llvm-svn: 38497
2007-07-10 17:59:22 +00:00
5e9084207f
If the operand is marked M_OPTIONAL_DEF_OPERAND, then it's a def.
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llvm-svn: 38496
2007-07-10 17:52:20 +00:00
fbc73099dc
Somehow this wasn't committed last time. M_CLOBBERS_PRED is gone.
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llvm-svn: 38495
2007-07-10 17:50:43 +00:00
2552a12e65
Fix the build, and fix the handling of pointer sizes.
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llvm-svn: 38494
2007-07-10 17:25:03 +00:00
47352db672
Fix a bunch of things from Chris' feedback
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llvm-svn: 38493
2007-07-10 17:08:11 +00:00
adb3d37c07
Fix a bug in the folding of binary operators to undef.
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Thanks to Lauro for spotting this!
llvm-svn: 38491
2007-07-10 15:19:29 +00:00
fa91282dbf
Fix the folding of undef in several binary operators to recognize
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undef in either the left or right operand.
llvm-svn: 38489
2007-07-10 14:20:37 +00:00
ff6f279adf
When a node value is only used by a CopyToReg, use the user's dest. This should not be restricted to nodes that produce only a single value.
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llvm-svn: 38485
2007-07-10 07:08:32 +00:00
32aad49b24
Move DenseMapKeyInfo<SDOperand> from LegalizeDAG.cpp to SelectionDAGNodes.h
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llvm-svn: 38484
2007-07-10 06:59:55 +00:00
e635cc43c6
Update the ValueRanges interface to use value numbers instead of Value*s.
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llvm-svn: 38483
2007-07-10 03:28:21 +00:00
4c4b238448
Move some key maps from std::map to DenseMap. This improves the time to optimize Anton's testcase from 17.5s
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to 15.7s.
llvm-svn: 38480
2007-07-10 00:27:22 +00:00
Devang Patel