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5d6d774240
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24741 Commits

Author SHA1 Message Date
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
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
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
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
Owen Anderson
22debc8bec Check for type legality before materializing integer constants in fast isel. With this change, 
all of MultiSource/Applications passes on Darwin/X86 under FastISel.

llvm-svn: 55982
 2008-09-09 06:32:02 +00:00
Dan Gohman
4b334f02b1 Remove the code that protected FastISel from aborting in 
the case of loads, stores, and conditional branches. It can
handle those now, so any that aren't handled should trigger
the abort.

llvm-svn: 55977
 2008-09-09 02:40:04 +00:00
Dan Gohman
12e88b5421 Temporarily disable vector select in the bitcode reader. The 
way it handles the type of the condition is breaking plain
scalar select in the case that the value is a
forward-reference.

llvm-svn: 55976
 2008-09-09 02:08:49 +00:00
Evan Cheng
dc011a1b10 Fix a constant lowering bug. Now we can do load and store instructions with funky getelementptr embedded in the address operand. 
llvm-svn: 55975
 2008-09-09 01:26:59 +00:00
Dale Johannesen
1ed08a58d1 Fix logic for not emitting no-dead-strip for some 
objects in llvm.used (thanks Anton).  Makes visible
the magic 'l' prefix for symbols on Darwin which are
to be passed through the assembler, then removed at
linktime (previously all references to this had been
hidden in the ObjC FE code, oh well).

llvm-svn: 55973
 2008-09-09 01:21:22 +00:00
Dan Gohman
90358a2f67 Update generated files. 
llvm-svn: 55972
 2008-09-09 01:13:24 +00:00
Devang Patel
b6380f607d Fix simplifycfg crash in handing block merge. 
llvm-svn: 55971
 2008-09-09 01:06:56 +00:00
Dan Gohman
3e79d697f3 Extend the vcmp/fcmp LLVM IR instructions to take vectors as arguments 
and, if so, to return a vector of boolean as a result;

Extend the select LLVM IR instruction to allow you to specify a result
type which is a vector of boolean, in which case the result will be an
element-wise selection instead of choosing one vector or the other; and

Update LangRef.html to describe these changes.

This patch was contributed by Preston Gurd!

llvm-svn: 55969
 2008-09-09 01:02:47 +00:00
Bill Wendling
701da64da7 Add support for floating-point calculations of log2 with limited precisions of 6 
and 18.

llvm-svn: 55968
 2008-09-09 00:28:24 +00:00
Devang Patel
7df7366784 s/RemoveUnreachableBlocks/RemoveUnreachableBlocksFromFn/g 
llvm-svn: 55965
 2008-09-08 22:14:17 +00:00
Dale Johannesen
372133f1c8 Don't suppress no-dead-strip for used static functions. 
llvm-svn: 55962
 2008-09-08 21:21:49 +00:00
Anton Korobeynikov
d82cd01929 Reapply 55904: Unbreak and fix indentation 
llvm-svn: 55958
 2008-09-08 21:13:56 +00:00
Anton Korobeynikov
1d726f1597 Reapply 55901: Drop unused variable 
llvm-svn: 55957
 2008-09-08 21:13:33 +00:00
Anton Korobeynikov
9d896f5566 Reapply 55900: We do support EH on x86-64! 
llvm-svn: 55956
 2008-09-08 21:13:08 +00:00
Anton Korobeynikov
33c69aaf24 Reapply 55899: First draft of EH support on x86/64-linux 
Now with fix, which prevents subtle codegen bug to trigger on darwin.
No fix for bug though, it's still there.

llvm-svn: 55955
 2008-09-08 21:12:47 +00:00
Anton Korobeynikov
8e8f8bf5a6 Reapply blindly reverted 55898: Implement FRAME_TO_ARGS_OFFSET for x86-64 
llvm-svn: 55954
 2008-09-08 21:12:11 +00:00
Dan Gohman
121cc3c111 Fix a few I's that were meant to be renamed to BI's. 
llvm-svn: 55942
 2008-09-08 20:37:59 +00:00
Bill Wendling
51ddfce77e Reverting r55898 as well. This wasn't reverted in the original revert... 
llvm-svn: 55938
 2008-09-08 19:42:32 +00:00
Bill Wendling
c5e40e77f3 Accidental commit of partial 'stack canaries' code 
llvm-svn: 55937
 2008-09-08 18:12:00 +00:00
Dale Johannesen
78617b727e Redo the 3 existing low-precision expansions to 
use float constants.  An oversight by the numerics
people who supplied this.

llvm-svn: 55930
 2008-09-08 18:00:26 +00:00
Bill Wendling
4cc4caab72 Reverting r55898 to r55909. One of these patches was causing an ICE during the full bootstrap on Darwin: 
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_negdi2 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_negdi2_s.o
Assertion failed: (TargetRegisterInfo::isVirtualRegister(regA) &&
TargetRegisterInfo::isVirtualRegister(regB) && "cannot update physical
register live information"), function runOnMachineFunction, file
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/lib/CodeGen/TwoAddressInstructionPass.cpp,
line 311.
/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/xgcc
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.obj/./gcc/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/bin/
-B/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/lib/
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/include
-isystem /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm-gcc.install/i386-apple-darwin9.4.0/sys-include
-O2  -O2 -g -O2  -DIN_GCC    -W -Wall -Wwrite-strings
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition
-isystem ./include  -fPIC -pipe -g -DHAVE_GTHR_DEFAULT -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED  -I. -I. -I../../llvm-gcc.src/gcc
-I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include
-I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include
-I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include
-I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include
-DSHARED -m64 -DL_lshrdi3 -c ../../llvm-gcc.src/gcc/libgcc2.c -o
libgcc/x86_64/_lshrdi3_s.o
../../llvm-gcc.src/gcc/unwind-dw2.c:1527: internal compiler error: Abort trap
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://developer.apple.com/bugreporter> for instructions.
{standard input}:unknown:Undefined local symbol LBB21_11
{standard input}:unknown:Undefined local symbol LBB21_12
{standard input}:unknown:Undefined local symbol LBB21_13
{standard input}:unknown:Undefined local symbol LBB21_8

llvm-svn: 55928
 2008-09-08 17:59:12 +00:00
Evan Cheng
fc78ac5bbe Handle calls which produce i1 results: promote to i8 but and it with 1 to get the low bit. 
llvm-svn: 55925
 2008-09-08 17:15:42 +00:00
Devang Patel
f341d87755 Remove unused counter. 
llvm-svn: 55924
 2008-09-08 17:14:54 +00:00
Dan Gohman
c9fdcfb189 In visitUREM, arrange for the temporary UDIV node to be 
revisited, consistent with the code in visitSREM.

llvm-svn: 55923
 2008-09-08 16:59:01 +00:00
Daniel Dunbar
ddd9b2aeb0 Add VISIBILITY_HIDDEN on SDISelAsmOperandInfo 
llvm-svn: 55922
 2008-09-08 16:56:08 +00:00
Dan Gohman
3d1ee171e8 Bitcasting two or from aggregate types is not permitted. Update 
LangRef.html, and teach the verifier to check bitcast instructions.

llvm-svn: 55921
 2008-09-08 16:45:59 +00:00
Dan Gohman
2498f902ff i128 and f80 are implemented for x86-64 now. 
llvm-svn: 55920
 2008-09-08 16:42:56 +00:00