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Author SHA1 Message Date
Dan Gohman
4646a3791e Add more documentation advertising the -view-*-dags options. 
llvm-svn: 56073
 2008-09-10 22:23:41 +00:00
Dan Gohman
9eca554828 X86FastISel support for double->float and float->double casts. 
llvm-svn: 56070
 2008-09-10 21:02:08 +00:00
Dan Gohman
ad5824104b FastISel support for i1 PHI nodes. 
llvm-svn: 56069
 2008-09-10 21:01:31 +00:00
Dan Gohman
5a6134a875 FastISel support for i1 constants. 
llvm-svn: 56068
 2008-09-10 21:01:08 +00:00
Owen Anderson
6bcc01b3eb Fix a bug in the coalescer where it didn't check if a live interval existed before trying to manipulate it. This 
was exposed by fast isel's handling of shifts on X86-64.  With this, FreeBench/pcompress2 passes on X86-64 in fast isel.

llvm-svn: 56067
 2008-09-10 20:41:13 +00:00
Dan Gohman
3ccdde5eef Add X86FastISel support for static allocas, and refences 
to static allocas. As part of this change, refactor the
address mode code for laods and stores.

llvm-svn: 56066
 2008-09-10 20:11:02 +00:00
Evan Cheng
474ba35954 Fix PR2664 - spiller GetRegForReload wasn't respecting sub-register indices on machine operands. 
llvm-svn: 56065
 2008-09-10 20:08:45 +00:00
Evan Cheng
83c694fbe7 Fix a fastcc + sret bug. If fastcc and sret, callee doesn't need to pop the hidden struct ptr; Re-enable fastcc. 
llvm-svn: 56061
 2008-09-10 18:25:29 +00:00
Dale Johannesen
3e4bbf01d0 Handle new intrinsics with vector arguments. 
Patch by Paul Redmond.

llvm-svn: 56059
 2008-09-10 17:31:40 +00:00
Dan Gohman
5211f1f5fc Add a break statement that I accidentally deleted when 
I shuffled the fast-isel command-line options around. This fixes
a bunch of fast-isel failures.

llvm-svn: 56057
 2008-09-10 15:52:34 +00:00
Devang Patel
092285d4e4 fix white spaces. 
llvm-svn: 56056
 2008-09-10 14:49:55 +00:00
Duncan Sands
6e9362aeaa Fix name. 
llvm-svn: 56055
 2008-09-10 13:22:10 +00:00
Duncan Sands
c3de6e13df Add trampoline support for the new FastCC calling 
convention (not related to recent Ada testsuite
failures).

llvm-svn: 56054
 2008-09-10 13:11:09 +00:00
Duncan Sands
63ef24bfb1 Turn off the new FastCC for the moment. It causes 
a slew of Ada testsuite failures on x86-32 linux.
Seems to be related to the use of float.

llvm-svn: 56053
 2008-09-10 13:09:24 +00:00
Bill Wendling
c7c5d73866 Remove unnecessary bit-wise AND from the limited precision work. 
llvm-svn: 56049
 2008-09-10 06:26:10 +00:00
Daniel Dunbar
df44fb835c Fix 80 col violation. 
llvm-svn: 56048
 2008-09-10 04:16:29 +00:00
Dan Gohman
3809753d3b Fix a warning about comparing signed and unsigned values. 
llvm-svn: 56040
 2008-09-10 01:09:32 +00:00
Evan Cheng
1ac90281be Fix typo. 
llvm-svn: 56037
 2008-09-10 00:30:50 +00:00
Bill Wendling
4dc9d148b5 Check that both operands are f32 before attempting to lower. 
llvm-svn: 56036
 2008-09-10 00:24:59 +00:00
Bill Wendling
aa39e64468 Implement "visitPow". This is mainly used to see if we have a pow() call of this 
form:

          powf(10.0f, x);

If this is the case, and also we want limited precision floating-point
calculations, then lower to do the limited-precision stuff.

llvm-svn: 56035
 2008-09-10 00:20:20 +00:00
Evan Cheng
150ee094e2 A few more places where FPOW is being ignored. 
llvm-svn: 56032
 2008-09-09 23:35:53 +00:00
Dan Gohman
5b55c46044 Change -fast-isel-no-abort to -fast-isel-abort, which now defaults 
to being off by default. Also, add assertion checks to check that
the various fast-isel-related command-line options are only used
when -fast-isel itself is enabled.

llvm-svn: 56029
 2008-09-09 23:05:00 +00:00
Evan Cheng
ba11945234 Legalizer was missing code that expand fpow to a libcall. 
llvm-svn: 56028
 2008-09-09 23:02:14 +00:00
Bill Wendling
5d6d774240 Adding 6-, 12-, and 18-bit limited-precision floating-point support for exp2 
function.

llvm-svn: 56025
 2008-09-09 22:39:21 +00:00
Dale Johannesen
ba2bbe0c55 Move the uglier parts of deciding not to emit a 
UsedDirective for some symbols in llvm.used into
Darwin-specific code.  I've decided LessPrivateGlobal
is potentially a useful abstraction and left it in
the target-independent area, with improved comment.

llvm-svn: 56024
 2008-09-09 22:29:13 +00:00
Bill Wendling
103d08d4ce Add support for 6-, 12-, and 18-bit limited precision calculations of exp for 
floating-point numbers.

llvm-svn: 56023
 2008-09-09 22:13:54 +00:00
Dan Gohman
7abf884d12 Fix a minor wording ambiguity in the Developer Policy. 
llvm-svn: 56022
 2008-09-09 22:13:09 +00:00
Dan Gohman
2799e1dc63 Add a new option, -fast-isel-verbose, that can be used with 
-fast-isel-no-abort to get a dump of all unhandled instructions,
without an abort.

llvm-svn: 56021
 2008-09-09 22:06:46 +00:00
Evan Cheng
f3a3ee6d01 Clear preference when it no longer makes sense. 
llvm-svn: 56019
 2008-09-09 21:44:23 +00:00
Devang Patel
ed0ea8049f Remove. 
llvm-svn: 56018
 2008-09-09 21:41:34 +00:00
Devang Patel
7365754925 if loop induction variable is always sign or zero extended then 
extend the type of induction variable.

llvm-svn: 56017
 2008-09-09 21:41:07 +00:00
Devang Patel
b08f098957 Add assertion check. 
llvm-svn: 56016
 2008-09-09 21:38:40 +00:00
Devang Patel
36ad68421e fix overflow check. 
llvm-svn: 56011
 2008-09-09 20:54:34 +00:00
Owen Anderson
0bdc9407ca Clean this up, based on Evan's suggestions. 
llvm-svn: 56009
 2008-09-09 20:47:17 +00:00
Bill Wendling
929486349f - Add support for 6-, 12-, and 18-bit limited precision floating-point "log" 
values.
- Refactored some of the code.

llvm-svn: 56008
 2008-09-09 20:39:27 +00:00
Evan Cheng
304fba81c9 Fix PR2757. Ignore liveinterval register allocation preference if the preference register is not in the right register class. This can happen due to sub-register coalescing. 
llvm-svn: 56006
 2008-09-09 20:22:01 +00:00
Anton Korobeynikov
6ad8b060d0 Make safer variant of alias resolution routine to be default 
llvm-svn: 56005
 2008-09-09 20:05:04 +00:00
Duncan Sands
f9234f2a22 Simplify this some more. No functionality change. 
llvm-svn: 56003
 2008-09-09 19:56:34 +00:00
Anton Korobeynikov
4676c09dc8 Resolve aliases, when possible 
llvm-svn: 56001
 2008-09-09 19:04:59 +00:00
Bill Wendling
727b25981a Add limited precision floating-point conversions of log10 for 6- and 18-bit 
precisions.

llvm-svn: 56000
 2008-09-09 18:42:23 +00:00
Dan Gohman
88053b82e5 Mark IMPLICIT_DEF as being rematerializable and cheap-as-a-move. 
It's already special-cased and treated as rematerializable within
LiveIntervals; this allows it to be handled by other passes
such as TwoAddressInstrctionPass.

llvm-svn: 55999
 2008-09-09 18:25:28 +00:00
Anton Korobeynikov
bcf0165453 Fix typo 
llvm-svn: 55998
 2008-09-09 18:24:07 +00:00
Anton Korobeynikov
3a24741034 Fix incorrect linker behaviour: we shouldn't resolve weak aliases. 
llvm-svn: 55997
 2008-09-09 18:23:48 +00:00
Anton Korobeynikov
59a67c60db Replace explicit pointer-size constants to TargetData query. 
No functionality change.

llvm-svn: 55996
 2008-09-09 18:22:57 +00:00
Dan Gohman
28c911b79b Make SimplifyDemandedVectorElts simplify vectors with multiple 
users, and teach it about shufflevector instructions.

Also, fix a subtle bug in SimplifyDemandedVectorElts'
insertelement code.

This is a patch that was originally written by Eli Friedman,
with some fixes and cleanup by me.

llvm-svn: 55995
 2008-09-09 18:11:14 +00:00
Devang Patel
ccd2dfd23a Simplify. 
Fix outdated comment.

llvm-svn: 55993
 2008-09-09 17:56:50 +00:00
Gabor Greif
d8b03fb627 fit in 80 cols, minor tweaks 
llvm-svn: 55992
 2008-09-09 17:52:13 +00:00
Duncan Sands
85c4a89959 Optimization suggested by Matthijs Kooijman. 
llvm-svn: 55988
 2008-09-09 13:44:24 +00:00
Duncan Sands
d8ab4c3485 Correct callgraph construction. It has two problems: 
(1) code left over from the days of ConstantPointerRef:
if a use of a function is a GlobalValue then that is
not considered a reason to add an edge from the external
node, even though the use may be as an initializer for
an externally visible global!  There might be some point
to this behaviour when the use is by an alias (though the
code predated aliases by some centuries), but I think
PR2782 is a better way of handling that.  (2) If function
F calls function G, and also G is a parameter to the
call, then an F->G edge is not added to the callgraph.
While this doesn't seem to matter much, adding such an
edge makes the callgraph more regular.
In addition, the new code should be faster as well as
simpler.

llvm-svn: 55987
 2008-09-09 12:40:47 +00:00
Argyrios Kyrtzidis
54bffd05fd Update VC++ project files. 
llvm-svn: 55985
 2008-09-09 11:38:37 +00:00