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Commit Graph

4946 Commits

Author SHA1 Message Date
Chris Lattner
9024121340 Add trivial exception specs to produce better code since the methods cannot
be inlined.

llvm-svn: 10643
2003-12-29 21:43:58 +00:00
Chris Lattner
6317315a2f Factor FDHandle out of the bytecode reader into the FileUtilities.h support
routines.

llvm-svn: 10642
2003-12-29 21:35:05 +00:00
Chris Lattner
2bfa334e64 implement new getToken function
llvm-svn: 10639
2003-12-29 05:07:02 +00:00
Chris Lattner
c37577eb9f Clean up a lot of the code I added yesterday by exposing the IntrinsicLowering
implementation from the TargetMachine directly.

llvm-svn: 10636
2003-12-28 21:23:38 +00:00
Alkis Evlogimenos
8157eb7140 Reserve ECX and EDI instead of EBX and EDI. Since EBX is a callee
saved register it has a longer free range than ECX (which is defined
every time there is a fnuction call) which makes ECX a better register
to reserve.

llvm-svn: 10635
2003-12-28 18:03:52 +00:00
Alkis Evlogimenos
fc01aac4d8 Add coalescing to register allocator. A hint is added to each interval
which denotes the register we would like to be assigned to (virtual or
physical). In register allocation, if this hint exists and we can map
it to a physical register (it is either a physical register or it is a
virtual register that already got assigned to a physical one) we use
that register if it is available instead of a random one in the free
pool.

llvm-svn: 10634
2003-12-28 17:58:18 +00:00
Alkis Evlogimenos
24b3159dfc Add TargetInstrInfo::isMoveInstr() to support coalescing in register
allocation.

llvm-svn: 10633
2003-12-28 17:35:08 +00:00
Chris Lattner
c487970d6b Whoops, don't try to lower non intrinsic calls
llvm-svn: 10632
2003-12-28 09:53:23 +00:00
Chris Lattner
1791047661 implement support for the intrinsic lowering functionality
llvm-svn: 10629
2003-12-28 09:47:19 +00:00
Chris Lattner
58cbeaed27 Eliminate some code that is not needed now that we have the intrinsic lowering pass
llvm-svn: 10628
2003-12-28 09:46:33 +00:00
Chris Lattner
44f1ab7c2f Pass around IntrinsicLowering instances as appropriate.
Reimplement the Interpreters implementation of va_* to be more direct.

llvm-svn: 10627
2003-12-28 09:44:37 +00:00
Chris Lattner
66fb20d2d3 Use the intrinsic lowering functionality
llvm-svn: 10626
2003-12-28 09:43:35 +00:00
Chris Lattner
068ac4236d Move into the VMCore library
llvm-svn: 10623
2003-12-28 08:30:20 +00:00
Chris Lattner
57ff7c242c Implement the default implementation of the intrinsic lowering class
llvm-svn: 10621
2003-12-28 08:19:41 +00:00
Chris Lattner
a8c942c188 finegrainify namespacification
minor cleanups

llvm-svn: 10619
2003-12-28 07:59:53 +00:00
Chris Lattner
428c27dfbf Merging constants can cause further room for improvement. Iterate until
we converge

llvm-svn: 10618
2003-12-28 07:19:08 +00:00
Chris Lattner
8caf13292a Add a note
llvm-svn: 10617
2003-12-28 04:03:49 +00:00
Chris Lattner
3593bb9dd6 Factor code out of LLI
llvm-svn: 10616
2003-12-26 06:50:30 +00:00
Chris Lattner
5ad07a3fbf minor cleanups
llvm-svn: 10612
2003-12-26 06:16:00 +00:00
Chris Lattner
ddcbddf9e9 No longer run atExit functions from run()
rename run to runFunction
Genericize the runFunction code a little bit, though it still stinks

llvm-svn: 10610
2003-12-26 06:13:47 +00:00
Chris Lattner
d7d8336d73 No longer run atExit functions from run()
rename run to runFunction

llvm-svn: 10609
2003-12-26 06:13:05 +00:00
Alkis Evlogimenos
597e2f3501 Improve debugging output when choosing a register to spill.
llvm-svn: 10604
2003-12-24 18:53:31 +00:00
Alkis Evlogimenos
2c947a4fa0 Do a separate pass to compute spill weights because doing it inline
with live intervals was missing registers that were used before they
were defined (in the arbitrary order live intervals numbers
instructions).

llvm-svn: 10603
2003-12-24 15:44:53 +00:00
Chris Lattner
c09a6f0621 Right, fix the problem with invoke instructions, not just call instructions
llvm-svn: 10599
2003-12-23 22:18:36 +00:00
Chris Lattner
c1dd02538a Do not delete the type holder until after the call instruction has been
constructed!

llvm-svn: 10598
2003-12-23 20:39:17 +00:00
Chris Lattner
defd9ccd73 Minor cleanups, plug a minor memory leak
llvm-svn: 10596
2003-12-23 20:05:15 +00:00
Alkis Evlogimenos
ca57dd1089 Change the way free regusters are computed and perform better
allocation in the presence of preallocated intervals.

llvm-svn: 10595
2003-12-23 18:00:33 +00:00
Chris Lattner
099e1f16b8 rename ClassifyExpression -> ClassifyExpr
llvm-svn: 10592
2003-12-23 08:04:08 +00:00
Chris Lattner
fefdb67375 More minor non-functional changes. This now computes the exit condition, though
it doesn't do anything with it.

llvm-svn: 10590
2003-12-23 07:47:09 +00:00
Chris Lattner
77fe880dcf Remove extraneous #include
finegrainify namespacification

llvm-svn: 10589
2003-12-23 07:43:38 +00:00
Chris Lattner
5780f54596 Finegrainify namespacification
llvm-svn: 10588
2003-12-23 06:44:41 +00:00
Chris Lattner
30fa61ca6c Fix memory corruption bug PR193
llvm-svn: 10586
2003-12-22 23:49:36 +00:00
John Criswell
8740fbd052 Reverted back to revision 1.11. The previous fix doesn't really fix
anything; it just causes the bug to go dormant.

llvm-svn: 10585
2003-12-22 16:22:49 +00:00
Alkis Evlogimenos
10de430568 Fix crash when compiling twolf.
llvm-svn: 10584
2003-12-22 13:54:29 +00:00
Chris Lattner
8ec8b9c28a Don't mind me, I'm just refactoring away. This patch makes room for LFTR, but
contains no functionality changes.

llvm-svn: 10583
2003-12-22 09:53:29 +00:00
Chris Lattner
b0c30fd90f finegrainify namespacification
Implement indvar analysis of getelementptr and sub expressions

llvm-svn: 10582
2003-12-22 05:26:29 +00:00
Chris Lattner
1f0b2be06c Implement IndVarsSimplify/pointer-indvars.ll, transforming pointer
arithmetic into "array subscripts"

llvm-svn: 10580
2003-12-22 05:02:01 +00:00
Chris Lattner
be3440d4e3 finegrainify namespacification
add new getIntPtrType() method

llvm-svn: 10579
2003-12-22 05:01:15 +00:00
Chris Lattner
dfe3e25d89 Fix PR194
llvm-svn: 10573
2003-12-22 03:58:44 +00:00
Misha Brukman
2653aa076a Really release memory used by functions. Patch by Chris.
llvm-svn: 10572
2003-12-22 03:47:58 +00:00
Alkis Evlogimenos
7062ccbc85 Remove verifyIntervals() since it doesn't actually work right now.
llvm-svn: 10570
2003-12-21 20:41:26 +00:00
Alkis Evlogimenos
4401d0a7a3 Change weight into a float so that we can take into account the
nesting level when computing it. Right now the allocator uses:

    w = sum_over_defs_uses( 10 ^ nesting level );

llvm-svn: 10569
2003-12-21 20:19:10 +00:00
Alkis Evlogimenos
0e892b6337 Move FP_REG_KILL closer to the return instruction.
llvm-svn: 10567
2003-12-21 16:47:43 +00:00
Alkis Evlogimenos
4f98b79ef0 Add support for inactive intervals. This effectively reuses registers
for live ranges that fall into assigned registers' holes.

llvm-svn: 10566
2003-12-21 05:43:40 +00:00
John Criswell
80daeb4cdb Fix PR#193.
Modified ReadArchiveBuffer() so that it dynamically allocates the
std::string object used to hold the bytecode object file's name.  This is
necessary because it is passed by reference to the new Module that is
allocated to represent the bytecode object, and previously we were
using a std::string that disappeared on function exit.

llvm-svn: 10565
2003-12-20 22:37:29 +00:00
Alkis Evlogimenos
7b61337ce6 Move FP_REG_KILL closer to the actual branch instruction.
llvm-svn: 10563
2003-12-20 17:28:15 +00:00
Alkis Evlogimenos
41bd8284e3 Remove floating point killer pass. This is now implemented in the
instruction selector by adding a new pseudo-instruction
FP_REG_KILL. This instruction implicitly defines all x86 fp registers
and is a terminator so that passes which add machine code at the end
of basic blocks (like phi elimination) do not add instructions between
it and the branch or return instruction.

llvm-svn: 10562
2003-12-20 16:22:59 +00:00
Chris Lattner
461a62626a Add a new target-independent machine code freeing pass
llvm-svn: 10560
2003-12-20 10:20:58 +00:00
Chris Lattner
ef1bfa35d0 Finally, _actually delete the machine code_ for a function, after it has
been emitted.  Also, since the FPK pass is causing memory access violations,
disable it.

llvm-svn: 10559
2003-12-20 10:20:19 +00:00
Chris Lattner
013d4bee41 This should not be needed anymore
llvm-svn: 10558
2003-12-20 10:19:18 +00:00