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5632 Commits

Author SHA1 Message Date
Bill Wendling 48217d89b4 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 91491b51e2 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 93945287b8 Clear preference when it no longer makes sense. 
llvm-svn: 56019
 2008-09-09 21:44:23 +00:00
Owen Anderson 4a58bd331b Clean this up, based on Evan's suggestions. 
llvm-svn: 56009
 2008-09-09 20:47:17 +00:00
Bill Wendling ed3bb7888d - 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 53b728c27c 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 1a1140429e Make safer variant of alias resolution routine to be default 
llvm-svn: 56005
 2008-09-09 20:05:04 +00:00
Bill Wendling faeb4b6755 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
Owen Anderson 8529085f4f 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 b6aef419b4 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
Evan Cheng 1e97901388 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 f080225490 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
Bill Wendling 484167851a 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
Dale Johannesen ea9285e643 Don't suppress no-dead-strip for used static functions. 
llvm-svn: 55962
 2008-09-08 21:21:49 +00:00
Anton Korobeynikov 45165ed1ac Reapply 55904: Unbreak and fix indentation 
llvm-svn: 55958
 2008-09-08 21:13:56 +00:00
Dan Gohman a333f3ccb8 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
Dale Johannesen 67f99f1454 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 99b83712f3 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
Dan Gohman 1df80f6b1c 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 ede2d7d745 Add VISIBILITY_HIDDEN on SDISelAsmOperandInfo 
llvm-svn: 55922
 2008-09-08 16:56:08 +00:00
Dan Gohman f9b2054df1 Add AsmPrinter support for i128 and larger static initializer data. 
llvm-svn: 55919
 2008-09-08 16:40:13 +00:00
Dan Gohman e19bc1844f Fix the string for ISD::UDIVREM. 
llvm-svn: 55917
 2008-09-08 16:30:29 +00:00
Evan Cheng 24776b554d Avoid redefinition and nnbreak windows build. 
llvm-svn: 55911
 2008-09-08 16:01:27 +00:00
Anton Korobeynikov 6a73698a85 Unbreak and fix indentation 
llvm-svn: 55904
 2008-09-08 14:23:34 +00:00
Evan Cheng e775d3526c Add fast isel physical register definition support. 
llvm-svn: 55892
 2008-09-08 08:38:20 +00:00
Bill Wendling 5f7371d7b1 Revert my previous change -- the subtraction of two constants was a no-op 
before. This is taken care of in the selection DAG pass. In my opinion, this
should be in one place or the other. I.e., it should probably be removed from
the DAG combiner (along with the other arithmetic transformations on constants
that are essentially no-ops).

llvm-svn: 55889
 2008-09-08 01:56:32 +00:00
Bill Wendling df81749886 Convert 
// fold (sub c1, c2) -> c1-c2

from a no-op into an actual transformation.

llvm-svn: 55886
 2008-09-07 11:34:47 +00:00
Evan Cheng b9a0abb129 Indentation. 
llvm-svn: 55880
 2008-09-07 09:04:52 +00:00
Evan Cheng 615739b991 - Doh. Pass vector by value is bad. 
- Add a AnalyzeCallResult specialized for calls which produce a single value. This is used by fastisel.

llvm-svn: 55879
 2008-09-07 09:02:18 +00:00
Dale Johannesen 36d532abd6 Next limited float precision expansion (log2 12 bits) 
llvm-svn: 55866
 2008-09-05 23:49:37 +00:00
Owen Anderson 1dd2e40521 Revert r55859. This is breaking the build in the abscence of its companion commit. 
llvm-svn: 55865
 2008-09-05 23:36:01 +00:00
Dan Gohman f17a2f3602 Move the code that inserts copies for function livein registers 
out of ScheduleDAGEmit.cpp and into SelectionDAGISel.cpp. This
allows it to be run exactly once per function, even if multiple
SelectionDAG iterations happen in the entry block, as may happen
with FastISel.

llvm-svn: 55863
 2008-09-05 22:59:21 +00:00
Dale Johannesen d4dac0e9ea Add the next limited-precision expansion. 
llvm-svn: 55856
 2008-09-05 21:27:19 +00:00
Dan Gohman fd634599dc FastISel support for AND and OR with type i1. 
llvm-svn: 55846
 2008-09-05 18:44:22 +00:00
Dale Johannesen 520143e563 Add hooks for other intrinsics to get low-precision expansions. 
llvm-svn: 55845
 2008-09-05 18:38:42 +00:00
Dan Gohman fcf545690c FastISel support for ConstantExprs. 
llvm-svn: 55843
 2008-09-05 18:18:20 +00:00
Dan Gohman 677c3afbd1 Revert r55817. It broke PIC. FastISel will need to find a different 
approach here.

llvm-svn: 55842
 2008-09-05 18:13:01 +00:00
Evan Cheng 6b8fae1777 Add a variant of AnalyzeCallOperands that can be used by fast isel. 
llvm-svn: 55838
 2008-09-05 16:59:26 +00:00
Duncan Sands 4d50e984bb "Fix" PR2762. The testcase now crashes codegen 
elsewhere due to a missing pattern for
v2f64 = sint_to_fp v2i32.  That is PR2687.

llvm-svn: 55828
 2008-09-05 08:13:35 +00:00
Dan Gohman 921ddd69ba Fix a search+replace-o. 
llvm-svn: 55824
 2008-09-05 01:58:21 +00:00
Dale Johannesen f2a52bbee5 Add -flimit-float-precision to enable some faster, 
but less accurate (non-IEEE) code sequences for
certain math library functions.  Add the first of
several such expansions.  Don't worry, if you don't
turn it on it won't affect you.

llvm-svn: 55823
 2008-09-05 01:48:15 +00:00
Dan Gohman ea56bdde34 FastISel support for unreachable. 
llvm-svn: 55818
 2008-09-05 01:08:41 +00:00
Dan Gohman 5b4a9f4a69 In FastISel mode, the scheduler may be invoked multiple times 
in the same block. Fix the entry-block handling to only run at
at the beginning of the entry block, and not any other times.

llvm-svn: 55817
 2008-09-05 01:07:48 +00:00
Owen Anderson 50288e3c99 Add initial support for selecting constant materializations that require constant 
pool loads on X86 in fast isel.  This isn't actually used yet.

llvm-svn: 55814
 2008-09-05 00:06:23 +00:00
Dan Gohman 5eba3bcac6 Add an include of SmallSet.h. 
llvm-svn: 55793
 2008-09-04 20:49:27 +00:00
Dan Gohman a79db30d28 Tidy up several unbeseeming casts from pointer to intptr_t. 
llvm-svn: 55779
 2008-09-04 17:05:41 +00:00
Dan Gohman 634412fe35 Clean up uses of TargetLowering::getTargetMachine. 
llvm-svn: 55769
 2008-09-04 15:39:15 +00:00
Evan Cheng 93d40ae1e1 Fix an overly strict assertion. Source register of a copy may not be killed, it may be killed by an implicit super-register use. 
llvm-svn: 55762
 2008-09-04 05:43:55 +00:00
Dale Johannesen da2d80688b Add intrinsics for log, log2, log10, exp, exp2. 
No functional change (and no FE change to generate them).

llvm-svn: 55753
 2008-09-04 00:47:13 +00:00
Dan Gohman e039d5580e Do trivial local CSE for constants and other non-Instruction values 
in FastISel.

llvm-svn: 55748
 2008-09-03 23:32:19 +00:00