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211 Commits

Author SHA1 Message Date
Ruchira Sasanka
dec9bfd554 Changed some names of methods, added const etc. 
llvm-svn: 1322
 2001-11-15 20:22:37 +00:00
Vikram S. Adve
fbb8a64749 Modify AllocateLocalVar method to take a size argument. 
llvm-svn: 1318
 2001-11-15 15:22:26 +00:00
Ruchira Sasanka
a514745a96 fixed setUsedRegAtMI 
llvm-svn: 1317
 2001-11-15 15:00:53 +00:00
Ruchira Sasanka
c5989f645b Changed phi elimination code 
llvm-svn: 1311
 2001-11-15 00:27:14 +00:00
Ruchira Sasanka
64f7567391 Small changed to printing a machine operand - It the operand is a def, it prints 
a star after it - only for debugging

llvm-svn: 1309
 2001-11-14 20:05:23 +00:00
Vikram S. Adve
cba86d060b Don't assume constant operand can only be in position 1! 
llvm-svn: 1308
 2001-11-14 18:49:45 +00:00
Vikram S. Adve
65d54eb06e Idiotic error in last fix. 
llvm-svn: 1306
 2001-11-14 17:55:02 +00:00
Vikram S. Adve
c1b534043f Don't need to load a NULL pointer constant from memory! 
llvm-svn: 1305
 2001-11-14 17:24:49 +00:00
Ruchira Sasanka
7765ca8b25 Added support method for setting interference for pseudo instructions 
llvm-svn: 1303
 2001-11-14 15:37:13 +00:00
Ruchira Sasanka
f1acecccb6 Added interference for args in pseudo instructions 
llvm-svn: 1300
 2001-11-14 15:33:58 +00:00
Chris Lattner
1237e86597 Remove much cruft from the MemAccessInst instruction 
llvm-svn: 1298
 2001-11-14 11:27:58 +00:00
Ruchira Sasanka
33c400f6a7 commented out lines printing code after scheduling 
llvm-svn: 1295
 2001-11-13 23:12:53 +00:00
Ruchira Sasanka
36f13d1c2f Fixed a bug concering LR spilling. Earlier, added spilled code was not inserted 
into the instruction stream correctly.

llvm-svn: 1294
 2001-11-13 23:09:30 +00:00
Vikram S. Adve
dafc8b909e Do the same for allocating spills to get their alignment right too. 
llvm-svn: 1285
 2001-11-12 23:40:22 +00:00
Vikram S. Adve
6e9422e14c When allocating space on stack for writing a register, 
use the size of the register, not the size of the Value type,
to get the right alignment.

llvm-svn: 1284
 2001-11-12 23:26:35 +00:00
Vikram S. Adve
4b9c46da24 Bug fix in offset alignment computations: don't subtract the padding 
value from size *before* subtracting size from offset!

llvm-svn: 1283
 2001-11-12 23:26:23 +00:00
Ruchira Sasanka
c189997516 For phi elimination, now we are generating only one instruction 
using cpValue2Value instead of
passing vector to createCopyInstructionByType.

llvm-svn: 1272
 2001-11-12 19:42:27 +00:00
Vikram S. Adve
03fae5e5db Eliminate most uses of the machine instruction vector for each LLVM instr, 
since some m. instr. may be generated by LLVM instrs. in other blocks.
Handle non-SSA (anti and output) edges and true edges uniformly by
working with machine instructions alone.

llvm-svn: 1269
 2001-11-12 18:53:43 +00:00
Ruchira Sasanka
9f246e65d3 Added phi elimination code - not final 
llvm-svn: 1264
 2001-11-12 14:44:50 +00:00
Vikram S. Adve
6e004c0818 Improved printing routines. 
llvm-svn: 1263
 2001-11-12 14:19:47 +00:00
Vikram S. Adve
dff0a891c1 Major improvement to how nodes are built for a BB. 
LLVM instruction is no longer recorded in each node, but BB is.

llvm-svn: 1262
 2001-11-12 14:18:01 +00:00
Vikram S. Adve
3b02a35a80 Adjust all stack variable offsets to be aligned by size. 
llvm-svn: 1261
 2001-11-12 05:17:23 +00:00
Vikram S. Adve
1d5c6e0939 Fix errors in computing downgrowing offsets, and in 
computing size of extra outgoing args.

llvm-svn: 1256
 2001-11-11 21:23:33 +00:00
Vikram S. Adve
6cd83556e6 Only add true dep. edges from an earlier to a later instruction. 
This wasn't a problem until we started putting copies for Phi values
that produced cycles in the SchedGraph!

llvm-svn: 1254
 2001-11-11 01:23:27 +00:00
Ruchira Sasanka
d1d5e97431 Changed code to ignore Phi Nodes in PhyRegAlloc 
llvm-svn: 1253
 2001-11-10 21:21:36 +00:00
Ruchira Sasanka
31305c0d57 Coalesing bug fix - now checks for the same regType instead of the same 
regClass since FP class has two reg Types.

llvm-svn: 1236
 2001-11-10 00:20:24 +00:00
Ruchira Sasanka
d499a26116 No major change 
llvm-svn: 1235
 2001-11-09 23:49:42 +00:00
Vikram S. Adve
313a36f2d3 Use node->getOpCode() instead of node->getMachineInstr()->getOpCode(). 
Much nicer.

llvm-svn: 1223
 2001-11-09 02:14:20 +00:00
Chris Lattner
2b48b9694c Add method decl 
llvm-svn: 1217
 2001-11-08 20:55:05 +00:00
Ruchira Sasanka
dc709780aa corrected insertCode4Spilled ... bug. 
llvm-svn: 1212
 2001-11-08 19:11:30 +00:00
Ruchira Sasanka
19a5165c29 Uncommented LR spill code insertion 
llvm-svn: 1207
 2001-11-08 16:43:25 +00:00
Vikram S. Adve
621b90440b Major change to how defs are found when adding dependences (they 
are now found as part of the initial walk of the machine code).
Also memory load/store instructions can be generated for non-memory
LLVM instructions, which wasn't handled before.  It is now.

llvm-svn: 1199
 2001-11-08 05:20:23 +00:00
Vikram S. Adve
80310bba37 MachineCodeForMethod is now an annotation on class Method. 
llvm-svn: 1198
 2001-11-08 05:18:18 +00:00
Vikram S. Adve
bdbb802c2f Added two minor methods. 
llvm-svn: 1187
 2001-11-08 04:49:52 +00:00
Vikram S. Adve
d9f8598104 Removed class RegStackOffsets and used class MachineCodeForMethod 
directly to manage stack frame.

llvm-svn: 1186
 2001-11-08 04:48:50 +00:00
Vikram S. Adve
c53037205b Major overhaul of stack frame management. 
llvm-svn: 1185
 2001-11-08 04:47:06 +00:00
Ruchira Sasanka
074d52d60d Fixed bug - added code in pushUnconstrainedIGNodes() to check whether a node 
is already pushed to stack by a previous call to the same method.

llvm-svn: 1154
 2001-11-06 15:25:38 +00:00
Vikram S. Adve
928833ecea Bug fix: uninitialized variable. 
llvm-svn: 1147
 2001-11-06 05:11:05 +00:00
Vikram S. Adve
596721384b Modified graph construction to use one pass to find all defs. 
Avoids having to handle some special cases that cause complex interactions
with instr. selection.

llvm-svn: 1138
 2001-11-05 04:04:23 +00:00
Vikram S. Adve
59a13288a6 Make reg. numbers signed ints. 
llvm-svn: 1137
 2001-11-05 03:56:02 +00:00
Chris Lattner
33d9cb9903 Minor method rename 
llvm-svn: 1119
 2001-11-04 08:08:34 +00:00
Ruchira Sasanka
471babe2d2 Added an assertion since it seems like AdjList returns an errornous size in method 
IGNode::pushOnStack().

llvm-svn: 1116
 2001-11-03 22:01:09 +00:00
Ruchira Sasanka
51fc1c2d72 Added support for correct spilling of %ccr 
llvm-svn: 1112
 2001-11-03 20:41:22 +00:00
Ruchira Sasanka
ca632ed71a Arranged stack frame - needs furhter organization 
llvm-svn: 1108
 2001-11-03 17:14:44 +00:00
Ruchira Sasanka
b7a397253f Arranged stack frame - needs furhter organization 
Moved InsertCallerSaveInstr to the SparcRegInfo.cpp

llvm-svn: 1106
 2001-11-03 17:13:27 +00:00
Vikram S. Adve
33ec4a3c23 Record constants that need to be emitted in the assembly code. 
llvm-svn: 1010
 2001-10-28 21:46:23 +00:00
Vikram S. Adve
979800ede8 Allow combinations of True/Anti/Output flags for each edge to 
support, e.g., dependences on Call instructions.

llvm-svn: 1009
 2001-10-28 21:45:02 +00:00
Vikram S. Adve
df6913549a Add edges between call instructions and (a) load/store instructions, and 
(b) any instructions that use or set CC registers.  Whether or not the
latter are needed really should be machine-dependent.

llvm-svn: 1008
 2001-10-28 21:43:33 +00:00
Ruchira Sasanka
9c38dbc249 Added support for spilling 
llvm-svn: 992
 2001-10-28 18:15:12 +00:00
Ruchira Sasanka
321ed7be93 Added spill code support; moved insertCallerSaving to SparRegInfo since 
we need to handle %ccr reg in a special way.

llvm-svn: 990
 2001-10-28 18:12:02 +00:00