5924bf7d3b
Added major new capabilities to scheduler (only BURR for now) to support physical register dependency. The BURR scheduler can now backtrace and duplicate instructions in order to avoid "expensive / impossible to copy" values (e.g. status flag EFLAGS for x86) from being clobbered.
...
llvm-svn: 42284
2007-09-25 01:54:36 +00:00
8a7dec736d
New temporary option -new-cc-modeling-scheme to test the new cc modeling scheme.
...
llvm-svn: 42283
2007-09-25 01:50:04 +00:00
43686dad3d
Rename keyword "modify" -> "implicit".
...
llvm-svn: 42282
2007-09-25 01:48:59 +00:00
0241bb57b2
When mixing SSE and x87 codegen, it's possible to
...
have situations where an SSE instruction turns into
multiple blocks, with the live range of an x87
register crossing them. To do this correctly make
sure we examine all blocks when inserting
FP_REG_KILL. PR 1697. (This was exposed by my
fix for PR 1681, but the same thing could happen
mixing x87 long double with SSE.)
llvm-svn: 42281
2007-09-24 22:52:39 +00:00
d40e795c19
Don't execute dump unless NDEBUG isn't defined.
...
llvm-svn: 42280
2007-09-24 22:43:48 +00:00
c82c9f078a
Comment fixups
...
llvm-svn: 42279
2007-09-24 22:20:45 +00:00
1b2156fcae
Add support on x86 for having Legalize lower ISD::LOCATION to ISD::DEBUG_LOC
...
instead of ISD::LABEL with a manual .debug_line entry when the assembler
supports .file and .loc directives.
llvm-svn: 42278
2007-09-24 21:54:14 +00:00
3165699e4b
Don't emit .debug_line header data if there aren't any lines to put in it,
...
such as will happen when .loc directives are used.
llvm-svn: 42277
2007-09-24 21:43:52 +00:00
9b00c07be5
Move the Asm->EOL() call for EmitDebugARanges outside the #ifdef for
...
consistency with the other currently empty sections.
llvm-svn: 42276
2007-09-24 21:36:21 +00:00
0baf84b2e1
Add support for emitting .file directives to set up file numbers for
...
use with .loc directives.
llvm-svn: 42275
2007-09-24 21:32:18 +00:00
0cc9d1b93b
Merge hasDotLoc and hasDotFile into hasDotLocAndDotFile since .loc and .file
...
aren't really usable without each other.
llvm-svn: 42274
2007-09-24 21:09:53 +00:00
5026f4ba93
float->int conversion rounds toward 0. Duh.
...
Fixes PR1698.
llvm-svn: 42273
2007-09-24 21:06:09 +00:00
bd8331da87
Add a routine for emitting .file directives, for setting up
...
file numbers to use with .loc directives.
llvm-svn: 42272
2007-09-24 20:58:13 +00:00
6d5ada23db
Added "LoadEffective" pattern to handle stack locations.
...
Fixed some comments
llvm-svn: 42271
2007-09-24 20:15:11 +00:00
9e30e1a3be
Do not promote null values because it may be unsafe to do so.
...
llvm-svn: 42270
2007-09-24 20:02:42 +00:00
5d7136a1df
Implement offline variable substitution in order to reduce memory
...
and time usage.
Fixup operator == to make this work, and add a resize method to DenseMap
so we can resize our hashtable once we know how big it should be.
llvm-svn: 42269
2007-09-24 19:45:49 +00:00
071efe28bb
Fix the syntax for the .loc directive in preparation for using it.
...
llvm-svn: 42268
2007-09-24 19:25:06 +00:00
82dcfd2dab
The code that used the StartLabelId label was removed, so remove the
...
code that creates the label too.
llvm-svn: 42265
2007-09-24 16:44:26 +00:00
6002818999
Use the correct result value type instead of using getValueType(0)
...
in ExpandEXTRACT_VECTOR_ELT and SplitVectorOp. This fixes an abort
in the included testcase.
llvm-svn: 42264
2007-09-24 15:54:53 +00:00
75470c3bf1
explicit keywords.
...
llvm-svn: 42262
2007-09-24 15:48:49 +00:00
5b5484db63
claim that "st" is from the 80-bit register file. This causes x87-using inline
...
asm to die with:
ScheduleDAG.cpp:269: failed assertion `false && "Couldn't find the register class"'
instead of:
failed assertion `RegMap->getRegClass(VReg) == RC && "Register class of operand and regclass of use don't agree!"'
yay.
llvm-svn: 42259
2007-09-24 05:27:37 +00:00
7d98b23f1a
When emitting .set directives, make sure the EH and Debug labels can't conflict.
...
llvm-svn: 42257
2007-09-24 03:35:37 +00:00
4f7c390939
Merge significant portions of the DomTree and PostDomTree implementations.
...
The two remaining unmerged parts are DFSPass, and the Calculate().
llvm-svn: 42255
2007-09-24 02:29:29 +00:00
acbb26f125
Just use APFloat for const / const. Fixes
...
-1. / -0.
llvm-svn: 42254
2007-09-24 00:32:45 +00:00
15efb43db7
Factor the calculation details for PostDomTree out of PostDominators.cpp and
...
into a separate header file.
Next step: merging PostDominatorCalculation.h with DominatorCalculation.h.
llvm-svn: 42251
2007-09-23 22:21:00 +00:00
da853a400f
Move DFSPass back down into DominatorTree. I need to figure out what the difference is between it
...
and the PostDomTree version first.
llvm-svn: 42250
2007-09-23 22:16:38 +00:00
7888658c5f
Fix header.
...
llvm-svn: 42249
2007-09-23 21:32:55 +00:00
84c357fc26
Factor the dominator tree calculation details out into DominatorCalculation.h. This
...
change is not useful in and of itself, but it lays the groundwork for combining
the dominator and postdominator implementations.
Also, factor a few methods that are common to DominatorTree and PostDominatorTree
into DominatorTreeBase. Again, this will make merging the two calculation methods
simpler in the future.
llvm-svn: 42248
2007-09-23 21:31:44 +00:00
e36c400255
Fix PR 1681. When X86 target uses +sse -sse2,
...
keep f32 in SSE registers and f64 in x87. This
is effectively a new codegen mode.
Change addLegalFPImmediate to permit float and
double variants to do different things.
Adjust callers.
llvm-svn: 42246
2007-09-23 14:52:20 +00:00
e48195e0f3
Fix PR1679, by printing GEP indices as signed values instead of unsigned.
...
llvm-svn: 42239
2007-09-22 20:16:48 +00:00
10671ad650
initialize isstore/isload fields in ctor, fixing PR1695
...
llvm-svn: 42222
2007-09-22 07:02:12 +00:00
a8d7269269
Handle storage complications of float->float conversions.
...
llvm-svn: 42220
2007-09-22 02:56:19 +00:00
4230512f32
Change APFloat::convertFromInteger to take the incoming
...
bit width instead of number of words allocated, which
makes it actually work for int->APF conversions.
Adjust callers. Add const to one of the APInt constructors
to prevent surprising match when called with const
argument.
llvm-svn: 42210
2007-09-21 22:09:37 +00:00
361e52f39c
Fix PR1692
...
llvm-svn: 42209
2007-09-21 21:18:19 +00:00
87ce0bec91
#ifdef out unsafe tracing code, which fixes PR1689
...
llvm-svn: 42205
2007-09-21 18:30:39 +00:00
51ce795c92
don't read Block after it is freed. This fixes PR1684
...
llvm-svn: 42204
2007-09-21 18:25:53 +00:00
b3d01d2f56
initialize SetCCResultContents, fixing PR1693
...
llvm-svn: 42193
2007-09-21 17:06:39 +00:00
4730c04904
Don't add a default STACK_ALIGN (use the generic ABI alignment)
...
Implement calls to functions with byval arguments on X86
llvm-svn: 42192
2007-09-21 15:50:22 +00:00
f065f0e2a1
small cleanup: use LowerMemArgument in LowerFastCCArguments also
...
llvm-svn: 42189
2007-09-21 14:55:38 +00:00
46da2a6262
Add partial caching of non-local memory dependence queries. This provides a modest
...
speedup for GVN.
llvm-svn: 42185
2007-09-21 03:53:52 +00:00
1ff71872c2
Honor user-defined section specification of a global, ignores whether its initializer is null.
...
llvm-svn: 42182
2007-09-21 00:41:19 +00:00
146a0ea071
Fix PR 1688. See comments there.
...
llvm-svn: 42181
2007-09-20 23:47:58 +00:00
83cc3f8f51
Update aux. info associated with an instruction before erasing instruction.
...
llvm-svn: 42180
2007-09-20 23:45:50 +00:00
d29f938335
Do not override user specified section.
...
llvm-svn: 42179
2007-09-20 23:07:37 +00:00
6117a3b696
Don't increment invalid iterator.
...
llvm-svn: 42178
2007-09-20 23:01:50 +00:00
cc7c475705
Fix dumb regression in constant folding (Regression/C/casts)
...
llvm-svn: 42165
2007-09-20 16:50:21 +00:00
4dbc582a36
Fix several more entries in the x86 reload/remat folding tables.
...
llvm-svn: 42162
2007-09-20 14:17:21 +00:00
95be037d67
another long double buglet
...
llvm-svn: 42159
2007-09-20 01:27:54 +00:00
eae7e7d00b
Fix optimization. %x = sub %x, %y does not imply that %y is zero.
...
llvm-svn: 42157
2007-09-20 00:48:36 +00:00
8010320365
Enable if-conversion for ARM by default.
...
llvm-svn: 42156
2007-09-20 00:48:22 +00:00
7d67e547b5
More long double fixes. x86_64 should build now.
...
llvm-svn: 42155
2007-09-19 23:55:34 +00:00
d0e360e16e
Avoid referencing deleted instruction.
...
llvm-svn: 42153
2007-09-19 21:48:07 +00:00
464276f831
Avoid unsafe promotion.
...
llvm-svn: 42149
2007-09-19 20:18:51 +00:00
513874cf3c
PSHUFDmi, etc. are actually folding a load, not a store.
...
llvm-svn: 42147
2007-09-19 19:02:47 +00:00
b59d25fe54
Fix longdouble -> uint conversion.
...
llvm-svn: 42143
2007-09-19 17:53:26 +00:00
d79f3d51b1
reject things like "declare internal @foo"
...
llvm-svn: 42140
2007-09-19 17:14:45 +00:00
c201cbc802
Add a flag to mark a dirty cache entry. This is not yet used, but will eventually
...
help non-local memdep caching.
llvm-svn: 42137
2007-09-19 16:13:57 +00:00
f4bad97ea0
Fix some long double issues.
...
llvm-svn: 42133
2007-09-19 14:22:58 +00:00
d31649bc59
Improve comment.
...
llvm-svn: 42132
2007-09-19 10:25:38 +00:00
a38e527523
Partial fix for PR1678: correct some parts of constant
...
fold that were missed in the fix for PR1646. Probably
this null/not-null logic should be factorized somewhere.
llvm-svn: 42131
2007-09-19 10:16:17 +00:00
56df7dec2b
A global variable with external weak linkage can be null, while
...
an alias could alias such a global variable.
llvm-svn: 42130
2007-09-19 10:10:31 +00:00
0effc3a6b8
Use struct SDep instead of std::pair for SUnit pred and succ lists. First step
...
in tracking physical register output dependencies.
llvm-svn: 42125
2007-09-19 01:38:40 +00:00
17f589f76e
Set CCR (EFLAGS) copy cost to -1, i.e. extremely expensive to copy.
...
llvm-svn: 42124
2007-09-19 01:36:39 +00:00
f73fb6261b
Add CopyCost to TargetRegisterClass. This specifies the cost of copying a value
...
between two registers in the specific class.
llvm-svn: 42123
2007-09-19 01:35:01 +00:00
69a55a38ed
Relax loop ExitCondition predicate restriction.
...
llvm-svn: 42122
2007-09-19 00:28:47 +00:00
455a53b7db
Filter loops where split condition's false branch is not empty. For example
...
for (int i = 0; i < N; ++i) {
if (i == somevalue)
dosomething();
else
dosomethingelse();
}
llvm-svn: 42121
2007-09-19 00:15:16 +00:00
4c238c451f
Bail out early, before modifying anything.
...
llvm-svn: 42120
2007-09-19 00:11:01 +00:00
31f2c8592c
Work is incomplete. Loop is not modified at all right now.
...
llvm-svn: 42119
2007-09-19 00:08:13 +00:00
ee35011d01
ooops...
...
llvm-svn: 42118
2007-09-18 23:58:14 +00:00
e2e8f2d96b
Fix a bogus splat xform:
...
shuffle <undef, undef, x, undef>, <undef, undef, undef, undef>, <2, 2, 2, 2>
!=
<undef, undef, x, undef>
llvm-svn: 42111
2007-09-18 21:54:37 +00:00
af12b57405
Prevent crash on long double.
...
llvm-svn: 42103
2007-09-18 18:36:59 +00:00
dc88c06732
Tests of the ocaml (and thus C) bindings for constants.
...
llvm-svn: 42101
2007-09-18 18:07:51 +00:00
8cca8469de
Move the entries for 64-bit CMP, IMUL, and a few others into the correct
...
tables so that they are eligible for reload/remat folding. And add
entries for JMP and CALL.
llvm-svn: 42094
2007-09-18 14:59:14 +00:00
be6bd16418
Incorporating review feedback for GC verifier patch.
...
llvm-svn: 42087
2007-09-18 10:14:30 +00:00
e8c885f261
Don't pass back a reference to a temporary.
...
llvm-svn: 42086
2007-09-18 09:10:16 +00:00
69833b61ac
The exception handling function info should be reset for each new
...
function. The information isn't used heavily -- it's only used at the end
of exception handling emission -- so there's no need to cache it.
llvm-svn: 42078
2007-09-18 05:03:44 +00:00
76a0374b25
C bindings for libLLVMCore.a and libLLVMBitWriter.a.
...
- The naming prefix is LLVM.
- All types are represented using opaque references.
- Functions are not named LLVM{Type}{Method}; the names became
unreadable goop. Instead, they are named LLVM{ImperativeSentence}.
- Where an attribute only appears once in the class hierarchy (e.g.,
linkage only applies to values; parameter types only apply to
function types), the class is omitted from identifiers for
brevity. Tastes like methods.
- Strings are C strings or string/length tuples on a case-by-case
basis.
- APIs which give the caller ownership of an object are not mapped
(removeFromParent, certain constructor overloads). This keeps
keep memory management as simple as possible.
For each library with bindings:
llvm-c/<LIB>.h - Declares the bindings.
lib/<LIB>/<LIB>.cpp - Implements the bindings.
So just link with the library of your choice and use the C header
instead of the C++ one.
llvm-svn: 42077
2007-09-18 03:18:57 +00:00
fcda998ab2
Fix PR1657
...
llvm-svn: 42075
2007-09-18 01:54:42 +00:00
067f1d8e95
Objective-C was generating EH frame info like this:
...
"_-[NSString(local) isNullOrNil]".eh = 0
.no_dead_strip "_-[NSString(local) isNullOrNil]".eh
The ".eh" should be inside the quotes.
llvm-svn: 42074
2007-09-18 01:47:22 +00:00
5752f692ed
Add support for appending a suffix to the end of a mangled name.
...
llvm-svn: 42071
2007-09-17 22:39:32 +00:00
00064e1bab
Do not hide APInt::dump() inside #ifndef NDEBUG.
...
llvm-svn: 42068
2007-09-17 22:24:00 +00:00
267c07b51f
Do not eliminate loop when it is invalid to do so. For example,
...
for(int i = 0; i < N; i++) {
if ( i == XYZ) {
A;
else
B;
}
C;
D;
}
llvm-svn: 42058
2007-09-17 21:01:05 +00:00
712dbe9d13
Skeleton for transformations to truncate loop's iteration space.
...
llvm-svn: 42054
2007-09-17 20:39:48 +00:00
a2f3e13cf4
Fix for PR1633: Verifier doesn't fully verify GC intrinsics
...
LLVM now enforces the following prototypes for the write barriers:
<ty>* @llvm.gcread(<ty2>*, <ty>**)
void @llvm.gcwrite(<ty>*, <ty2>*, <ty>**)
And for @llvm.gcroot, the first stack slot is verified to be an alloca or a
bitcast of an alloca.
Fixes test/CodeGen/Generic/GC/lower_gcroot.ll, which violated these.
llvm-svn: 42051
2007-09-17 20:30:04 +00:00
ff7e443792
Remove RSTRegClass case from loadRegFromStackSlot
...
and storeRegToStackSlot. Evan and I concluded this
should never be needed and it appears to be true.
(It if is needed, adjustment would be needed for
long double to work.)
llvm-svn: 42049
2007-09-17 20:15:38 +00:00
9d1af9b63d
Fix comment.
...
llvm-svn: 42048
2007-09-17 20:07:40 +00:00
77ae4d358f
This is not ideal but unbreaks build failure.
...
APInt::dump() is inside #ifndef NDEBUG, however SelectionDAG dump() routines are not.
llvm-svn: 42047
2007-09-17 20:03:03 +00:00
a1336cf57e
Implement x86 long double in jit (not really
...
complete, but common cases work)
llvm-svn: 42043
2007-09-17 18:44:13 +00:00
0625bd6472
Merge DenseMapKeyInfo & DenseMapValueInfo into DenseMapInfo
...
Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.
llvm-svn: 42042
2007-09-17 18:34:04 +00:00
8070099fef
X86ISD::TEST is dead.
...
llvm-svn: 42037
2007-09-17 17:42:53 +00:00
2ac2652779
Instcombine x-((x/y)*y) into a remainder operator.
...
llvm-svn: 42035
2007-09-17 17:31:57 +00:00
3243e10ef0
Add 64-bit jmp instructions to the list of instructions that
...
can terminate a block with no fall-through.
llvm-svn: 42029
2007-09-17 15:19:08 +00:00
96aee15d33
Use xorl instead of xorq to enter a zero into a 64-bit register.
...
llvm-svn: 42027
2007-09-17 14:55:08 +00:00
863bdc332d
Emit integer x<1 as x<=0, as comparisons with zero (now includeing
...
64-bit) can use test instead of cmp with an immediate.
llvm-svn: 42026
2007-09-17 14:49:27 +00:00
51d1929b9e
Use "test reg,reg" in place of "cmp reg,0" for 64-bit operands. This was
...
previously only done for 32-bit and smaller operands.
llvm-svn: 42024
2007-09-17 14:35:24 +00:00
6d5da71288
Factor the trampoline transformation into a subroutine.
...
llvm-svn: 42021
2007-09-17 10:26:40 +00:00
7511e6b622
Implement x86 long double (uses host long double,
...
so only works on x86 target).
llvm-svn: 42019
2007-09-17 00:38:27 +00:00
90aaa1dcf7
Fix bug in andersen's related to test_and_set.
...
Add operator == and != to SparseBitVector.
Simplify code for test_and_set
llvm-svn: 42018
2007-09-16 23:59:53 +00:00
ffce584d1c
Rewrite of andersen's to be about 100x faster, cleaner, and begin to support field sensitivity
...
llvm-svn: 42016
2007-09-16 21:45:02 +00:00
327e1a386c
Follow-up to patch r41999. Make the conditional that emits the personality stub
...
match the conditional that turns on exception handling emittion in the asm
printer.
llvm-svn: 42008
2007-09-16 19:21:08 +00:00
Evan Cheng