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633 Commits

Author SHA1 Message Date
Chris Lattner
bb6b121689 Allow emission of names that start with an underscore. This is needed to 
interface with code that uses symbols in the ansi-c protected namespace.  In
most cases this comes from system header files, such as stdio.h.  In particular,
without this change, a reference to the __iob symbol is mangled into ll_iob,
which is not resolved by libc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4165 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-14 06:14:18 +00:00
Chris Lattner
0b16ae209a - Rename Instruction::First*Op to *OpsBegin, and Num*Ops to *OpsEnd to 
reflect the fact that it's a range being defined.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4147 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 19:39:16 +00:00
Vikram S. Adve
1632e882f1 Use vectors instead of hash_maps for issueGaps and conflictLists. 
These hash lookups were a major sink of time because they happen so often!
Also, add option to disable scheduling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4138 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:40:37 +00:00
Vikram S. Adve
acf0f704f9 Major bug fix: was not adding CD edges for RETURNs! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4137 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:39:22 +00:00
Vikram S. Adve
fee76265ff Several major fixes, particularly in emitting constant aggregates: 
(1) Padding bytes between structure fields (for alignment) were never
    being emitted into the constant pool so the layout did not match!
(2) In printing constants, structures containing structures or arrays
    were never handled.
(3) Support new model for external/uninitialized/initialized globals.
    Uninitialized globals are no longer emitted since they are external.
    Initialized globals may go either in .bss or in .data.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4134 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:32:18 +00:00
Vikram S. Adve
42e90cf4be Don't use %l0 for large operands to a SAVE since it is needed *before* SAVE! 
We now use %g1 instead since that is shared and volatile.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4133 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:24:06 +00:00
Vikram S. Adve
e0048667dd Don't mark JMPLCALL and JMPLRET as branches. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4132 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:22:32 +00:00
Vikram S. Adve
d3e26482ff (1) Try to evaluate constant when multiplying 2 constants. 
(2) Use intelligent multiply selection code for array allocas.
(3) Don't use cache padding for alloca'd stack slots!
(4) Bug fix in handling call arguments: was not copying sixth FP arg
    to int reg. when calling a function with no prototype.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4130 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:18:57 +00:00
Vikram S. Adve
04ef49985b Eliminate duplicate target pointer in SparcRegInfo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4129 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:06:04 +00:00
Vikram S. Adve
c654c784f6 Eliminate duplicate target pointer. Also add a few assertions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4128 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:05:30 +00:00
Vikram S. Adve
893cace8e2 Make sure to handle small negative values hiding as large unsigned longs -- 
this is a common case created by the front-end.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4127 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:04:26 +00:00
Vikram S. Adve
d0451a9233 Major fix: extract ConstantExpr nodes and decompose them into symbolic 
instructions so that (a) constant folding is done automatically before
code generation, and (b) selection does not have to deal with them.
Also, check for ConstantPointerRefs in additional to GlobalValues
when creating a GEP to load a global address.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4126 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-13 00:01:57 +00:00
Vikram S. Adve
cb202e3de5 Major bug fix: spill code for an instruction in a delay slot was 
merrily being inserted before/after the instruction!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4116 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-10-11 16:12:40 +00:00
Vikram S. Adve
aebdbe6988 Bug fix in folding getElementPtr instructions: don't fold one into 
a predecessor if it has a non-zero first index and the predecessor
ends with a struct index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3982 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-29 22:55:05 +00:00
Vikram S. Adve
1c397aae8e Added a couple of helper methods for live range construction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3970 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 17:05:43 +00:00
Vikram S. Adve
9d67cd1468 Live ranges for Return value and return address of a Call are now 
created here, simply by handling all implicit operands (which should
have been done anyway).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3969 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 17:05:22 +00:00
Vikram S. Adve
f425884e27 Fixed method getReturnValue(): it should return NULL if the 
callee does not return a value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3968 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 17:03:54 +00:00
Vikram S. Adve
ad9c978874 Fixed incorrect assertion: spill code for function ptr should be 
handled like normal operands, not like other call arguments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3967 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 17:02:40 +00:00
Vikram S. Adve
ac67006bed Return address register should be marked as "result" for the JMPL instruction 
since it is defined by the instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3966 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 17:00:15 +00:00
Vikram S. Adve
87817653fe Live ranges for Return value and return address of a Call are no longer 
created here.  Instead they are created in LiveRangeInfo.cpp.  This
simplifies the code here quite a bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3965 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 16:59:05 +00:00
Vikram S. Adve
106604ea6d Simplified code that handles call args and rets, so it no longer 
needs the RegClass list to be passed in.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3964 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 16:56:59 +00:00
Vikram S. Adve
4a8bb2bf23 Simplify Call translation slightly. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3963 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-28 16:55:41 +00:00
Vikram S. Adve
94c408104a Overhaul integer conversions to match C++ ISO standard. 
Don't allow direct FP-to-uint conversion (must be eliminated by preselection).
Address arithmetic for arrays is now entirely 64-bit so no sign-ext needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3961 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-27 14:33:08 +00:00
Vikram S. Adve
5cededee92 Modify operand order for Create{Sign,Zero}ExtensionInstructions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3960 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-27 14:29:45 +00:00
Vikram S. Adve
7e5167a3e2 Bug fix: some redundant copies were not being deleted after detection :-|. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3959 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-27 14:27:37 +00:00
Vikram S. Adve
1c10f17552 Sign-extend integer constants from original type size to 64 bits! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3958 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-27 14:26:20 +00:00
Vikram S. Adve
e9cb735131 Decompose FP-to-UInt casts into FP-to-ULong-toUInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3957 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-27 14:24:45 +00:00
Vikram S. Adve
1b5710a8fc Put intermediate source files in a subdirectory here instead of with 
object files.  Also,


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3884 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-23 13:12:28 +00:00
Anand Shukla
33db9bae15 Initial version: it adds 2 empty slots at the top of stack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3872 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-21 04:58:26 +00:00
Vikram S. Adve
0efb50761d Add method IGNode::getCombinedDegree to count the sum of the degrees 
of two nodes, excluding duplicates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3848 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:55:04 +00:00
Vikram S. Adve
d55697cf13 Added class MachineOptInfo as interface to target-specific 
routines supporting machine code optimization.
Also added method MachineInstrInfo::getNOPOpCode().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3845 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:52:09 +00:00
Vikram S. Adve
32f81a3469 Allow copy coalescing in more cases: if sum of node degrees is more than 
than #available regs, compute the sum excluding duplicates and if that
is less than #regs, go ahead and coalesce.
Add method IGNode::getCombinedDegree to count excluding duplicates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3842 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:45:47 +00:00
Vikram S. Adve
25d80cdcc6 Peephole optimization pass on final machine code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3840 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:42:11 +00:00
Vikram S. Adve
abf055c698 Moving these files from Code/PreSelection to here. 
Original logs for PreSelection.cpp:

  revision 1.2
  date: 2002/09/17 23:50:32;  author: lattner;  state: Exp;  lines: +1 -3
  Don't put default parameter values into .cpp files, it breaks 3.x compilers

  revision 1.1
  date: 2002/09/16 15:31:13;  author: vadve;  state: Exp;
  New preselection pass that specializes LLVM code for a target machine,
  while remaining in legal portable LLVM form and preserving type
  information and type safety.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3838 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-20 00:29:28 +00:00
Anand Shukla
b379470b90 Removed debug info printing 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3778 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-17 20:24:46 +00:00
Chris Lattner
82f05d8610 Add support for GCC 2.96 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3777 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-17 17:23:09 +00:00
Vikram S. Adve
e102a64beb Use ulong instead of uint for size expressions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3744 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:56:45 +00:00
Vikram S. Adve
4900116ab0 Add methods to query about the representation of LLVM quantities (e.g., 
constants).  Useful for target-dependent LLVM transformations like
Preselection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3743 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:56:01 +00:00
Vikram S. Adve
13f1d71c80 Don't print out global names unnecesssarily. Also, expose pass 
constructors so passes can be inserted by TargetMachine.cpp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3742 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:54:02 +00:00
Vikram S. Adve
e1f7280bf8 Move all the code that creates code generation passes from Sparc.cpp to 
TargetMachine.cpp, since it is entirely machine-independent.
Also, add options to disable optional back-end passes (preselection and
instr. scheduling).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3740 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:39:26 +00:00
Vikram S. Adve
fd0ec80197 Add a version of ChooseRegOrImmed to handle numerical constants 
introduced by InstrSelection.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3735 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-16 15:15:57 +00:00
Vikram S. Adve
993243e599 Fix typos in previous checkin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3726 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-15 15:33:48 +00:00
Chris Lattner
4bc2348008 RegAllocCommon no longer includes CommandLine.h so we have to include it 
here.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3725 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-15 07:07:55 +00:00
Vikram S. Adve
39c94e105f Break RA_DEBUG option into several levels to get better control over 
debug output.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3724 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-14 23:05:33 +00:00
Vikram S. Adve
521758fb79 Remove unnecessary include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3723 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-14 23:04:52 +00:00
Vikram S. Adve
7e914a967d Break RA_DEBUG option into several levels to get better output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3722 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-14 22:18:37 +00:00
Vikram S. Adve
7c26898401 Moving to lib/CodeGen/RegAlloc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3718 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-14 11:57:17 +00:00
Misha Brukman
3f93eeedbd Again, including Module makes Function unnecessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3714 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-14 02:07:43 +00:00
Chris Lattner
597f81fea2 Fix a bug I introduced into the code generator. :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3694 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-12 20:27:10 +00:00
Chris Lattner
0374b8de2b - Change getelementptr instruction to use long indexes instead of uint 
indexes for sequential types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3683 91177308-0d34-0410-b5e6-96231b3b80d8
 2002-09-11 01:21:35 +00:00