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62 Commits

Author SHA1 Message Date
Chris Lattner
2e7537b60b rename FP_SETRESULT -> FP_SET_ST0 
llvm-svn: 48094
 2008-03-09 07:08:44 +00:00
Chris Lattner
826402e365 rename FpGETRESULT32 -> FpGET_ST0_32 etc. Add support for 
isel'ing value preserving FP roundings from one fp stack reg to another
into a noop, instead of stack traffic.

llvm-svn: 48093
 2008-03-09 07:05:32 +00:00
Evan Cheng
18064ddb5b Refactor code. Remove duplicated functions that basically do the same thing as 
findRegisterUseOperandIdx, findRegisterDefOperandIndx. Fix some naming inconsistencies.

llvm-svn: 47927
 2008-03-05 00:59:57 +00:00
Evan Cheng
618761903d Work in progress. This patch *fixes* x86-64 calls which are modelled as StructRet but really should be return in registers, e.g. _Complex long double, some 128-bit aggregates. This is a short term solution that is necessary only because llvm, for now, cannot model i128 nor call's with multiple results. 
Status: This only works for direct calls, and only the caller side is done. Disabled for now.

llvm-svn: 46527
 2008-01-29 19:34:22 +00:00
Chris Lattner
554971a6d6 Improve the FP stackifier to decide all on its own whether 
an instruction kills a register or not.  This is cheap and 
easy to do now that instructions record this on their flags,
and this eliminates the second pass of LiveVariables from the
x86 backend.  This speeds up a release llc by ~2.5%.

llvm-svn: 45955
 2008-01-14 06:41:29 +00:00
Chris Lattner
0293fca6d8 rename MachineInstr::setInstrDescriptor -> setDesc 
llvm-svn: 45871
 2008-01-11 18:10:50 +00:00
Chris Lattner
f83aae613c rename TargetInstrDescriptor -> TargetInstrDesc. 
Make MachineInstr::getDesc return a reference instead
of a pointer, since it can never be null.

llvm-svn: 45695
 2008-01-07 07:27:27 +00:00
Chris Lattner
9d38dfa4a5 Move a bunch more accessors from TargetInstrInfo to TargetInstrDescriptor 
llvm-svn: 45680
 2008-01-07 03:13:06 +00:00
Chris Lattner
f7f96d818f Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects 
that it is cheap and efficient to get.

Move a variety of predicates from TargetInstrInfo into 
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around.  Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.

Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.

llvm-svn: 45674
 2008-01-07 01:56:04 +00:00
Chris Lattner
96167aa93c Rename SSARegMap -> MachineRegisterInfo in keeping with the idea 
that "machine" classes are used to represent the current state of
the code being compiled.  Given this expanded name, we can start 
moving other stuff into it.  For now, move the UsedPhysRegs and
LiveIn/LoveOuts vectors from MachineFunction into it.

Update all the clients to match.

This also reduces some needless #includes, such as MachineModuleInfo
from MachineFunction.

llvm-svn: 45467
 2007-12-31 04:13:23 +00:00
Chris Lattner
ad9a6ccb83 Remove attribution from file headers, per discussion on llvmdev. 
llvm-svn: 45418
 2007-12-29 20:36:04 +00:00
Evan Cheng
f3c130a8b6 Enabling new condition code modeling scheme. 
llvm-svn: 42459
 2007-09-29 00:00:36 +00:00
Evan Cheng
a58633d67b New style x87 cmp instructions. 
llvm-svn: 42312
 2007-09-25 19:08:02 +00:00
Evan Cheng
36b3babfde Added support for new condition code modeling scheme (i.e. physical register dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after 
all the kinks are worked out.

llvm-svn: 42285
 2007-09-25 01:57:46 +00:00
Dale Johannesen
ab5a68edd5 another long double buglet 
llvm-svn: 42159
 2007-09-20 01:27:54 +00:00
Dale Johannesen
46adce144c 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
Dan Gohman
fb60c0dfed Remove isReg, isImm, and isMBB, and change all their users to use 
isRegister, isImmediate, and isMachineBasicBlock, which are equivalent,
and more popular.

llvm-svn: 41958
 2007-09-14 20:33:02 +00:00
Duncan Sands
8640185d45 My compiler warns about the semicolon. 
llvm-svn: 41840
 2007-09-11 12:30:25 +00:00
Owen Anderson
4b71e55287 Add lengthof and endof templates that hide a lot of sizeof computations. 
Patch by Sterling Stein!

llvm-svn: 41758
 2007-09-07 04:06:50 +00:00
Dale Johannesen
6b8e91e7e3 Long double patch 8 of N: make it partially work in 
SSE mode (all but conversions <-> other FP types, I think):
>>Do not mark all-80-bit operations as "Requires[FPStack]"
(which really means "not SSE").
>>Refactor load-and-extend to facilitate this.
>>Update comments.
>>Handle long double in SSE when computing FP_REG_KILL.

llvm-svn: 40906
 2007-08-07 20:29:26 +00:00
Dale Johannesen
2c35d56edd Long double patch 7 of N, unless I lost count:). 
Last x87 bits for full functionality (not
thoroughly tested, and long doubles do not work
in SSE modes at all - use -mcpu=i486 for now)

llvm-svn: 40886
 2007-08-07 01:17:37 +00:00
Dale Johannesen
3ea9879011 Get X86 long double calling convention to work 
(on Darwin, anyway).  Fix some table omissions for
LD arithmetic.

llvm-svn: 40877
 2007-08-06 21:31:06 +00:00
Dale Johannesen
e3f1d06ca0 Make 80-bit store maintain simulated FP stack correctly. 
llvm-svn: 40868
 2007-08-06 19:50:32 +00:00
Dale Johannesen
a85f11d870 Long double patch 4 of N: initial x87 implementation. 
Lots of problems yet but some simple things work.

llvm-svn: 40847
 2007-08-05 18:49:15 +00:00
Dale Johannesen
ecef839eaa Fix fp_constant_op failure. 
llvm-svn: 38514
 2007-07-10 21:53:30 +00:00
Dale Johannesen
9072b65b0b Refactor X87 instructions. As a side effect, all 
their names are changed.

llvm-svn: 37876
 2007-07-04 21:07:47 +00:00
Dale Johannesen
0db4ba9f8a Some spacing fixes. Cosmetic. 
llvm-svn: 37853
 2007-07-03 17:07:33 +00:00
Dale Johannesen
7af19491d3 Fix for PR 1505 (and 1489). Rewrite X87 register 
model to include f32 variants.  Some factoring
improvments forthcoming.

llvm-svn: 37847
 2007-07-03 00:53:03 +00:00
Devang Patel
cd45427a87 Drop 'const' 
llvm-svn: 36662
 2007-05-03 01:11:54 +00:00
Devang Patel
8ee9065162 Use 'static const char' instead of 'static const int'. 
Due to darwin gcc bug, one version of darwin linker coalesces
static const int, which defauts PassID based pass identification.

llvm-svn: 36652
 2007-05-02 21:39:20 +00:00
Devang Patel
38a66bc82e Do not use typeinfo to identify pass in pass manager. 
llvm-svn: 36632
 2007-05-01 21:15:47 +00:00
Evan Cheng
7f44e880dc Match MachineFunction::UsedPhysRegs changes. 
llvm-svn: 36452
 2007-04-25 22:13:27 +00:00
Chris Lattner
8896b6cb46 eliminate static ctors for Statistic objects. 
llvm-svn: 32703
 2006-12-19 22:59:26 +00:00
Chris Lattner
51a6154ce5 Fix a bug introduced by the streams patch. DEBUG code was made unconditional. 
llvm-svn: 32351
 2006-12-08 05:41:26 +00:00
Bill Wendling
f13d78d3b8 What should be the last unnecessary <iostream>s in the library. 
llvm-svn: 32333
 2006-12-07 22:21:48 +00:00
Chris Lattner
a531ce882e Detemplatize the Statistic class. The only type it is instantiated with 
is 'unsigned'.

llvm-svn: 32279
 2006-12-06 17:46:33 +00:00
Evan Cheng
04e66b07dc Fix 2005-05-08-FPStackifierPHI.ll failure. 
llvm-svn: 32071
 2006-12-01 10:11:51 +00:00
Evan Cheng
d8be97599a MachineInstr::setOpcode -> MachineInstr::setInstrDescriptor 
llvm-svn: 32034
 2006-11-30 07:12:03 +00:00
Evan Cheng
98fa7ab4d7 Change MachineInstr ctor's to take a TargetInstrDescriptor reference instead 
of opcode and number of operands.

llvm-svn: 31947
 2006-11-27 23:37:22 +00:00
Evan Cheng
1b3bde1c1b Kill / dead info has been moved to MI's. 
llvm-svn: 31764
 2006-11-15 20:56:39 +00:00
Evan Cheng
7c9b3c7ea3 Revert. This wasn't meant to be checked in. 
llvm-svn: 31737
 2006-11-14 19:20:33 +00:00
Evan Cheng
0e82270ff2 Matches MachineInstr changes. 
llvm-svn: 31712
 2006-11-13 23:36:35 +00:00
Evan Cheng
b9e2ae9e37 Add implicit use / def operands to created MI's. 
llvm-svn: 31676
 2006-11-11 10:21:44 +00:00
Evan Cheng
6f0095807e Use TargetInstrInfo::getNumOperands() instead of MachineInstr::getNumOperands(). In preparation for implicit reg def/use changes. 
llvm-svn: 31616
 2006-11-10 01:28:43 +00:00
Reid Spencer
4bafa71dc1 For PR786: 
Turn on -Wunused and -Wno-unused-parameter. Clean up most of the resulting
fall out by removing unused variables. Remaining warnings have to do with
unused functions (I didn't want to delete code without review) and unused
variables in generated code. Maintainers should clean up the remaining
issues when they see them. All changes pass DejaGnu tests and Olden.

llvm-svn: 31380
 2006-11-02 20:25:50 +00:00
Chris Lattner
af7a360ac8 Bugfix to work with the two-addr changes that have been made in the tree recently 
llvm-svn: 30121
 2006-09-05 20:27:32 +00:00
Chris Lattner
33bd5dcfb7 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h| 
llvm-svn: 29911
 2006-08-27 12:54:02 +00:00
Jim Laskey
5d139b794a Do once flag never set to true. 
llvm-svn: 29214
 2006-07-19 19:33:08 +00:00
Chris Lattner
adc7078c98 Hide x86 symbols 
llvm-svn: 28976
 2006-06-28 23:27:49 +00:00
Evan Cheng
b3d9ee74ad Added fisttp for fp to int conversion. 
llvm-svn: 26283
 2006-02-18 02:36:28 +00:00