437435dcbc
Fix a type and formatting.
...
llvm-svn: 50900
2008-05-09 12:20:10 +00:00
829046b0b4
Improve pass documentation and comments.
...
Patch by Matthijs Kooijman!
llvm-svn: 50861
2008-05-08 17:46:35 +00:00
4758caa926
Check linkage.
...
llvm-svn: 50851
2008-05-08 15:08:39 +00:00
6a2da37c0e
Make several variable declarations static.
...
llvm-svn: 50696
2008-05-06 01:53:16 +00:00
b9b5d6ddaa
Delete the IPO simplify-libcalls and completely reimplement it as
...
a FunctionPass. This makes it simpler, fixes dozens of bugs, adds
a couple of minor features, and shrinks is considerably: from
2214 to 1437 lines.
llvm-svn: 50520
2008-05-01 06:25:24 +00:00
438e35c4d1
use string length computation to generalize several xforms.
...
llvm-svn: 50464
2008-04-30 03:07:53 +00:00
92f4702254
Implement more aggressive support for analyzing string length. This
...
generalizes the previous code to handle the case when the string is not
an immediate to the strlen call (for example, crazy stuff like
strlen(c ? "foo" : "bart"+1) -> 3). This implements
gcc.c-torture/execute/builtins/strlen-2.c. I will generalize other
cases in simplifylibcalls to use the same routine later.
llvm-svn: 50408
2008-04-29 06:56:02 +00:00
67ca6f6347
When SRoA'ing a global variable, make sure the new globals get the
...
appropriate alignment. This fixes a miscompilation of 252.eon on
x86-64 (rdar://5891920).
Bill, please pull this into Tak.
llvm-svn: 50308
2008-04-26 07:40:11 +00:00
4d43d3c72c
Remove 'unwinds to' support from mainline. This patch undoes r47802 r47989
...
r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.
llvm-svn: 50265
2008-04-25 16:53:59 +00:00
a82d691caa
simplify code for propagation of constant arguments into
...
callees.
llvm-svn: 50142
2008-04-23 06:16:27 +00:00
5f1802cfdf
Fix a number of bugs in ipconstantprop, simplify the code, fit in 80 cols,
...
fix read after free bug (PR2238).
llvm-svn: 50141
2008-04-23 05:59:23 +00:00
ad0d42ba15
don't assume that the argument passed to fprintf("%s" is a string. This
...
fixes a crash in opt on 433.milc.
llvm-svn: 50023
2008-04-21 03:18:33 +00:00
eb6bb803a7
Allow argpromote to promote struct arguments with a specified number
...
of elements. Patch by Matthijs Kooijman!
llvm-svn: 49962
2008-04-19 19:50:01 +00:00
a29d2536aa
Disable an xform we've had for a long time, pow(x,0.5) -> sqrt.
...
This is not safe for all inputs.
llvm-svn: 49458
2008-04-10 02:07:51 +00:00
802134fc02
Generalize getUnaryFloatFunction to handle any FP unary function, automatically
...
figuring out the suffix to use. implement pow(2,x) -> exp2(x).
llvm-svn: 49437
2008-04-09 17:48:11 +00:00
cca74e5ab9
use the new ConstantFP::get method to make this work with
...
long double and simplify the code.
llvm-svn: 49435
2008-04-09 17:17:35 +00:00
b859fb49ed
many cleanups to the pow optimizer. Allow it to handle powf,
...
add support for pow(x, 2.0) -> x*x.
llvm-svn: 49411
2008-04-09 00:07:45 +00:00
813384951e
Use Intrinsic::getDeclaration in more places.
...
llvm-svn: 49338
2008-04-07 13:45:04 +00:00
e9ecc68d8f
API changes for class Use size reduction, wave 1.
...
Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.
llvm-svn: 49277
2008-04-06 20:25:17 +00:00
ac38d444e2
1. Drop default inline threshold back down to 200.
...
2. Do not use # of basic blocks as part of the cost computation since it doesn't really figure into function size.
3. More aggressively inline function with vector code.
llvm-svn: 49061
2008-04-01 23:59:29 +00:00
3471ae8c5d
Increasing the inline limit from (overly conservative) 200 to 300. Given each BB costs 20 and each instruction costs 5, 200 means a 4 BB function + 24 instructions (actually less because caller's size also contributes to it).
...
Furthermore, double the limit when more than 10% of the callee instructions are vector instructions. Multimedia kernels tend to love inlining.
llvm-svn: 48725
2008-03-24 06:37:48 +00:00
9988569af8
Don't include <map> in Pass.h, which doesn't need it. This requires
...
adding <map> to many files that actually do need it.
llvm-svn: 48667
2008-03-21 23:51:57 +00:00
74d154ce57
FunctionExtractorPass has been superceded by GVExtractorPass
...
llvm-svn: 48648
2008-03-21 16:46:53 +00:00
5ca2ea6479
Incorporate feedback.
...
- Fix loop nest.
- Use RetVals.size()
- Check for null return value.
llvm-svn: 48605
2008-03-20 18:30:32 +00:00
a30cdb9417
Take the old function's name.
...
llvm-svn: 48588
2008-03-20 08:05:05 +00:00
8a923e7c28
Reimplement the parameter attributes support, phase #1 . hilights:
...
1. There is now a "PAListPtr" class, which is a smart pointer around
the underlying uniqued parameter attribute list object, and manages
its refcount. It is now impossible to mess up the refcount.
2. PAListPtr is now the main interface to the underlying object, and
the underlying object is now completely opaque.
3. Implementation details like SmallVector and FoldingSet are now no
longer part of the interface.
4. You can create a PAListPtr with an arbitrary sequence of
ParamAttrsWithIndex's, no need to make a SmallVector of a specific
size (you can just use an array or scalar or vector if you wish).
5. All the client code that had to check for a null pointer before
dereferencing the pointer is simplified to just access the
PAListPtr directly.
6. The interfaces for adding attrs to a list and removing them is a
bit simpler.
Phase #2 will rename some stuff (e.g. PAListPtr) and do other less
invasive changes.
llvm-svn: 48289
2008-03-12 17:45:29 +00:00
cc189b5606
Check multiple return values.
...
llvm-svn: 48267
2008-03-12 00:32:32 +00:00
fa8667a2dd
Fix attribute handling.
...
llvm-svn: 48262
2008-03-12 00:07:03 +00:00
7358165c99
Handle multiple ret values.
...
llvm-svn: 48254
2008-03-11 22:24:29 +00:00
f6269f0914
Initialize.
...
llvm-svn: 48253
2008-03-11 22:08:21 +00:00
fb2c1a999a
Turn unwind_to into "unwinds to".
...
llvm-svn: 48123
2008-03-10 02:20:00 +00:00
d48ed17d18
Fix some compilation errors on msvc:
...
- "Redefinition of I" (iterator masks previous definition)
- include missing header file
Patch by Argiris Kirtzidis!
llvm-svn: 48115
2008-03-09 18:32:50 +00:00
0ac65c3b99
And again.
...
llvm-svn: 48112
2008-03-09 17:13:05 +00:00
929703b29e
Braces belong here. No functionality change.
...
llvm-svn: 48111
2008-03-09 17:11:18 +00:00
4d0ed842b1
Prune the unwind_to labels on BBs that don't need them. Another step in the
...
removal of invoke, PR1269.
llvm-svn: 48084
2008-03-09 04:55:16 +00:00
3f13b6630a
add a pass that can extract all kinds of global values, not just functions. Update llvm-extract to use it and optionally extract a global variable if you want it too
...
llvm-svn: 48015
2008-03-07 19:51:57 +00:00
26cabc447c
Skip, for now, callsites where use of sret argument is not dominated by callsite.
...
llvm-svn: 47980
2008-03-05 23:39:23 +00:00
ea4cb89d34
Filter nested structs
...
llvm-svn: 47906
2008-03-04 21:32:09 +00:00
297ea0de75
Use appropriate index to get the result value.
...
llvm-svn: 47897
2008-03-04 19:22:54 +00:00
748c77f530
Skip sret attribute while preparing attribute list for
...
new function and new call sites.
llvm-svn: 47896
2008-03-04 19:12:58 +00:00
ed6e4b0b7d
Increment counter that keeps track of total number of sret promoted.
...
llvm-svn: 47892
2008-03-04 17:48:11 +00:00
6bb36e686d
Skip declarations.
...
llvm-svn: 47890
2008-03-04 17:47:06 +00:00
5b69f3fa33
Process externally visible functions also. Later on code generator will do the right thing.
...
llvm-svn: 47889
2008-03-04 17:46:26 +00:00
ecce5af83d
Collect statistics.
...
llvm-svn: 47888
2008-03-04 17:44:37 +00:00
9d91785987
s/isReturnStruct()/hasStructRetAttr()/g
...
llvm-svn: 47857
2008-03-03 21:46:28 +00:00
b0faf89133
Preserve paramater attributes.
...
llvm-svn: 47847
2008-03-03 18:36:03 +00:00
a683edb2d8
allow specified inline threshold to be negative, as the value is
...
itself sometimes negative.
llvm-svn: 47786
2008-03-01 08:09:51 +00:00
e8ddaba169
Fix cut-n-pasto.
...
llvm-svn: 47777
2008-02-29 23:41:13 +00:00
4eedfd2421
Add pass to promote sret.
...
This pass transforms
%struct._Point = type { i32, i32, i32, i32, i32, i32 }
define internal void @foo(%struct._Point* sret %agg.result)
into
%struct._Point = type { i32, i32, i32, i32, i32, i32 }
define internal %struct._Point @foo()
This pass updates foo() clients appropriately to use
getresult instruction to extract return values.
This pass is not yet ready for prime time.
llvm-svn: 47776
2008-02-29 23:34:08 +00:00
09f410b6d7
Split ParameterAttributes.h, putting the complicated
...
stuff into ParamAttrsList.h. Per feedback from
ParamAttrs changes.
llvm-svn: 47504
2008-02-22 22:17:59 +00:00
6f74afea32
Get rid of hash_map. Use StringMap instead
...
llvm-svn: 47373
2008-02-20 11:27:49 +00:00
1bfd121321
Make Transforms to be 4.3 warnings-clean
...
llvm-svn: 47371
2008-02-20 11:26:25 +00:00
579f07135a
Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings.
...
llvm-svn: 47367
2008-02-20 11:08:44 +00:00
89268bc6e2
Expand ParameterAttributes to 32 bits (in preparation
...
for adding alignment info, not there yet). Clean up
interfaces to reference ParameterAttributes consistently.
llvm-svn: 47342
2008-02-19 21:38:47 +00:00
85fab3a3ad
Simplify caller updating using a CallSite, as
...
requested by Chris. While there, do the same
for an existing function committed by someone
called "lattner" :)
llvm-svn: 47273
2008-02-18 17:32:13 +00:00
573b3f89e4
Remove any 'nest' parameter attributes if the function
...
is not passed as an argument to a trampoline intrinsic.
llvm-svn: 47220
2008-02-16 20:56:04 +00:00
67b9ef7be8
remove some dead code.
...
llvm-svn: 47066
2008-02-13 17:18:26 +00:00
9aa789fda3
Don't drop function/call return attributes like 'nounwind'.
...
llvm-svn: 46645
2008-02-01 20:37:16 +00:00
ade0abb498
Don't let globalopt hack on volatile loads or stores.
...
llvm-svn: 46523
2008-01-29 19:01:37 +00:00
70de4cb1cd
Use empty() instead of comparing size() with zero.
...
llvm-svn: 46514
2008-01-29 13:02:09 +00:00
a8b4a56061
Transform calls to memcpy into llvm.memcpy calls, patch by Eli Friedman.
...
llvm-svn: 46433
2008-01-28 04:41:43 +00:00
04af661b1f
DAE bug fix. Don't lose parameter attributes on vararg arguments.
...
llvm-svn: 46113
2008-01-17 04:18:54 +00:00
5630c4f217
Fix arg promotion to propagate the correct attrs on the calls to
...
promoted functions. This is important for varargs calls in
particular. Thanks to duncan for providing a great testcase.
llvm-svn: 46108
2008-01-17 01:17:03 +00:00
39f156183d
Handle attribute(used) global variables that are i8.
...
llvm-svn: 46090
2008-01-16 21:35:43 +00:00
b3696e4f14
Do not strip llvm.used values.
...
llvm-svn: 46045
2008-01-16 03:33:05 +00:00
26fe7ebc03
Fix the miscompilation of MiBench/consumer-lame that was exposed by Evan's
...
byval work. This miscompilation is due to the program indexing an array out
of range and us doing a transformation that broke this.
llvm-svn: 45949
2008-01-14 02:09:12 +00:00
9a6db18b04
The isNotSuitableForSRA property is now dead, don't compute it.
...
llvm-svn: 45948
2008-01-14 01:32:52 +00:00
ab0537258f
Change SRAGlobal to not depend on isNotSuitableForSRA, which makes it very
...
difficult to understand the invariants.
llvm-svn: 45947
2008-01-14 01:31:05 +00:00
20bbac3435
Make the 'shrink global to bool' optimization more self contained, and thus
...
easier to show that its safe. No functionality change.
llvm-svn: 45946
2008-01-14 01:17:44 +00:00
ff70c5de69
Small simplification.
...
llvm-svn: 45932
2008-01-13 08:12:17 +00:00
22ad7abdfe
Allow clients to specify the inline threshold when creating
...
the inliner pass. Patch by Robert Zeh.
llvm-svn: 45903
2008-01-12 06:49:13 +00:00
5b721fc21d
When DAE drops the varargs part of a function, ensure any
...
attributes on the vararg call arguments are also dropped.
llvm-svn: 45892
2008-01-11 23:13:45 +00:00
b5bd924e83
Teach argpromote to ruthlessly hack small byval structs when it can
...
get away with it, which exposes opportunities to eliminate the memory
objects entirely. For example, we now compile byval.ll to:
define internal void @f1(i32 %b.0, i64 %b.1) {
entry:
%tmp2 = add i32 %b.0, 1 ; <i32> [#uses=0]
ret void
}
define i32 @main() nounwind {
entry:
call void @f1( i32 1, i64 2 )
ret i32 0
}
This seems like it would trigger a lot for code that passes around small
structs (e.g. SDOperand's or _Complex)...
llvm-svn: 45886
2008-01-11 22:31:41 +00:00
b66fbdde42
Use smallptrset instead of std::set for efficiency.
...
llvm-svn: 45878
2008-01-11 19:36:30 +00:00
4a70261f00
a byval argument is guaranteed to be valid to load.
...
llvm-svn: 45877
2008-01-11 19:34:32 +00:00
4062a625e5
Update this code to use eraseFromParent where possible. Compute
...
whether an argument is byval and pass into isSafeToPromoteArgument.
llvm-svn: 45876
2008-01-11 19:20:39 +00:00
e736e55d3c
replace a loop with a constant time check.
...
llvm-svn: 45875
2008-01-11 18:55:10 +00:00
669e7054ca
another minor datastructure tweak.
...
llvm-svn: 45874
2008-01-11 18:47:45 +00:00
a8ba28f6e4
start using smallvector to avoid vector heap thrashing.
...
llvm-svn: 45873
2008-01-11 18:43:58 +00:00
b18c30acec
Small cleanup for handling of type/parameter attribute
...
incompatibility.
llvm-svn: 45704
2008-01-07 17:16:06 +00:00
404eb05247
The transform that tries to turn calls to bitcast functions into
...
direct calls bails out unless caller and callee have essentially
equivalent parameter attributes. This is illogical - the callee's
attributes should be of no relevance here. Rework the logic, which
incidentally fixes a crash when removed arguments have attributes.
llvm-svn: 45658
2008-01-06 18:27:01 +00:00
bdd6acfb59
Fix PR1896
...
llvm-svn: 45568
2008-01-04 05:04:53 +00:00
d2b0e15535
add missing #include
...
llvm-svn: 45516
2008-01-02 23:41:05 +00:00
f3ebc3f3d2
Remove attribution from file headers, per discussion on llvmdev.
...
llvm-svn: 45418
2007-12-29 20:36:04 +00:00
a087a8d2ce
remove attribution from lib Makefiles.
...
llvm-svn: 45415
2007-12-29 20:09:26 +00:00
520e64c0c2
Fixing several transforms which would drop the collector attribute
...
when copying functions.
llvm-svn: 45356
2007-12-25 22:16:06 +00:00
6a7703ed63
Make DAE not wipe out attributes on calls, and not drop
...
return attributes on the floor. In the case of a call
to a varargs function where the varargs arguments are
being removed, any call attributes on those arguments
need to be dropped. I didn't do this because I plan to
make it illegal to have such attributes (see next patch).
With this change, compiling the gcc filter2 eh test at -O0
and then running opt -std-compile-opts on it results in
a correctly working program (compiling at -O1 or higher
results in the test failing due to a problem with how we
output eh info into the IR).
llvm-svn: 45285
2007-12-21 19:16:16 +00:00
aa31b92508
When inlining through an 'nounwind' call, mark inlined
...
calls 'nounwind'. It is important for correct C++
exception handling that nounwind markings do not get
lost, so this transformation is actually needed for
correctness.
llvm-svn: 45218
2007-12-19 21:13:37 +00:00
3353ed09ac
Rename isNoReturn to doesNotReturn, and isNoUnwind to
...
doesNotThrow.
llvm-svn: 45160
2007-12-18 09:59:50 +00:00
edf0788758
Change the PointerType api for creating pointer types. The old functionality of PointerType::get() has become PointerType::getUnqual(), which returns a pointer in the generic address space. The new prototype of PointerType::get() requires both a type and an address space.
...
llvm-svn: 45082
2007-12-17 01:12:55 +00:00
9f76be61d1
Make PruneEH update the nounwind/noreturn attributes
...
on functions as it calculates them.
llvm-svn: 44802
2007-12-10 19:09:40 +00:00
38ef3a8ec7
Rather than having special rules like "intrinsics cannot
...
throw exceptions", just mark intrinsics with the nounwind
attribute. Likewise, mark intrinsics as readnone/readonly
and get rid of special aliasing logic (which didn't use
anything more than this anyway).
llvm-svn: 44544
2007-12-03 20:06:50 +00:00
ad0ea2d430
Fix PR1146: parameter attributes are longer part of
...
the function type, instead they belong to functions
and function calls. This is an updated and slightly
corrected version of Reid Spencer's original patch.
The only known problem is that auto-upgrading of
bitcode files doesn't seem to work properly (see
test/Bitcode/AutoUpgradeIntrinsics.ll). Hopefully
a bitcode guru (who might that be? :) ) will fix it.
llvm-svn: 44359
2007-11-27 13:23:08 +00:00
59c11686cc
Don't crash on bogus llvm.noinline. This is first part of PR1817 (preventing reduction)
...
llvm-svn: 44281
2007-11-22 22:30:10 +00:00
0841c3b560
Fix PR1788 by taking the approach suggested by Richard Smith.
...
Thanks to him for his detailed analysis of the problem.
llvm-svn: 44162
2007-11-15 06:10:55 +00:00
c6243020a6
Allow the block extractor take to take a list of basic blocks to not extract
...
from a file containing Function/BasicBlock pairings. This is not safe against
anonymous or abnormally-named Funcs or BBs.
Make bugpoint use this interface to pass the BBs list to the child bugpoint.
llvm-svn: 44101
2007-11-14 06:47:06 +00:00
68f04fa941
Fix the regression on Transforms/GlobalOpt/deadglobal-2.ll from my
...
patch on friday.
llvm-svn: 44068
2007-11-13 21:46:23 +00:00
f9c0fd7488
Tighten up a check for folding away loads from (newly constant) globals. This
...
fixes a crash on Transforms/GlobalOpt/2007-11-09-GEP-GEP-Crash.ll and
rdar://5585488.
llvm-svn: 43949
2007-11-09 17:33:02 +00:00
2ed067a0d9
Deleting redundant copy of block extractor pass. See also PR1775.
...
llvm-svn: 43694
2007-11-05 01:54:05 +00:00
d568767ecb
Finishing initial docs for all transformations in Passes.html.
...
Also cleaned up some comments in source files.
llvm-svn: 43674
2007-11-04 16:15:04 +00:00
Duncan Sands