fa14dd430c
Add register-reuse to frame-index register scavenging. When a target uses
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a virtual register to eliminate a frame index, it can return that register
and the constant stored there to PEI to track. When scavenging to allocate
for those registers, PEI then tracks the last-used register and value, and
if it is still available and matches the value for the next index, reuses
the existing value rather and removes the re-materialization instructions.
Fancier tracking and adjustment of scavenger allocations to keep more
values live for longer is possible, but not yet implemented and would likely
be better done via a different, less special-purpose, approach to the
problem.
eliminateFrameIndex() is modified so the target implementations can return
the registers they wish to be tracked for reuse.
ARM Thumb1 implements and utilizes the new mechanism. All other targets are
simply modified to adjust for the changed eliminateFrameIndex() prototype.
llvm-svn: 83467
2009-10-07 17:12:56 +00:00
10d3dc569b
Instead of printing unnecessary basic block labels as labels in
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verbose-asm mode, print comments instead. This eliminates a non-comment
difference between verbose-asm mode and non-verbose-asm mode.
Also, factor out the relevant code out of all the targets and into
target-independent code.
llvm-svn: 83392
2009-10-06 17:38:38 +00:00
051454a16f
Update processDebugLoc() so that it can be used to process debug info before and after printing an instruction.
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llvm-svn: 83363
2009-10-06 02:19:11 +00:00
e0709cfc92
Use MachineInstr as an processDebugLoc() argument.
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This will allow processDebugLoc() to handle scopes for DWARF debug info.
llvm-svn: 83183
2009-09-30 23:12:50 +00:00
64c8d5a004
Fix a comment typo.
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llvm-svn: 83174
2009-09-30 21:44:42 +00:00
b296942f6d
Remove std::string uses from DebugInfo interface.
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llvm-svn: 83083
2009-09-29 18:40:58 +00:00
9827ad39a7
Fix PR4926. When target hook EmitInstrWithCustomInserter() insert new basic blocks and update CFG, it should also inform sdisel of the changes so the phi source operands will come from the right basic blocks.
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llvm-svn: 82311
2009-09-19 09:51:03 +00:00
270d0f986f
Enhance EmitInstrWithCustomInserter() so target can specify CFG changes that sdisel will use to properly complete phi nodes.
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Not functionality change yet.
llvm-svn: 82273
2009-09-18 21:02:19 +00:00
4dc75de733
PIC16 does allow colon after MBB labels, simplify EmitBasicBlockStart.
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llvm-svn: 81755
2009-09-14 03:15:54 +00:00
eb2cc68254
remove all but one reference to TargetRegisterDesc::AsmName.
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llvm-svn: 81714
2009-09-13 20:31:40 +00:00
ad10b3be3e
the tblgen produced 'getRegisterName' method does not access
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the object, make it static instead of const.
llvm-svn: 81711
2009-09-13 20:19:22 +00:00
06c5eed9e9
make tblgen produce a function that returns the name for a physreg.
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Nothing is using this info yet.
llvm-svn: 81707
2009-09-13 20:08:00 +00:00
1d04aa78f3
replace printBasicBlockLabel with EmitBasicBlockStart,
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now that printBasicBlockLabel is only used for starting
a MBB. This allows elimination of a bunch of arguments.
llvm-svn: 81684
2009-09-13 18:25:37 +00:00
4cd449813a
convert some uses of printBasicBlockLabel to use GetMBBSymbol
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instead.
llvm-svn: 81677
2009-09-13 17:14:04 +00:00
321bc99a74
remove DebugLoc from MCInst and eliminate "Comment printing" from
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the MCInst path of the asmprinter. Instead, pull comment printing
out of the autogenerated asmprinter into each target that uses the
autogenerated asmprinter. This causes code duplication into each
target, but in a way that will be easier to clean up later when more
asmprinter stuff is commonized into the base AsmPrinter class.
This also fixes an xcore strangeness where it inserted two tabs
before every instruction.
llvm-svn: 81396
2009-09-09 23:14:36 +00:00
68c5f477fa
Retype from unsigned to CallingConv::ID accordingly. Approved by Bob Wilson.
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llvm-svn: 80773
2009-09-02 08:44:58 +00:00
a19e971f0c
Further refactoring of PIC16 Obj file code.
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llvm-svn: 80670
2009-09-01 10:47:31 +00:00
9fda4bd998
Simplify isDerivedType() and other predicate interface.
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llvm-svn: 80602
2009-08-31 18:49:10 +00:00
3c62f5095a
Normalize makefile comments and sort cmake file lists.
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llvm-svn: 80584
2009-08-31 13:05:24 +00:00
80ae34974b
Reapply 79977.
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Use MDNodes to encode debug info in llvm IR.
llvm-svn: 80406
2009-08-28 23:24:31 +00:00
45a6b06a45
Add comments detailing a known bug, so that people writing other
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backends don't use it as an example.
llvm-svn: 80105
2009-08-26 16:06:11 +00:00
f08e35d9dc
Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
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llvm-svn: 80073
2009-08-26 05:01:18 +00:00
7699191ffb
Start refactoring PIC16 TargetObjectFile code. Eventually, all the stuff from
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PIC16Section will move to MCSectionPIC16.
llvm-svn: 80021
2009-08-25 19:39:05 +00:00
02aac922b4
Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
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This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)
llvm-svn: 79977
2009-08-25 05:24:07 +00:00
44aed5dcf1
eliminate a #include.
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llvm-svn: 79888
2009-08-24 04:07:51 +00:00
f7b571726a
Forgot to update some CMakeLists.
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llvm-svn: 79780
2009-08-22 22:20:11 +00:00
e9a75a6654
rename TAI -> MAI, being careful not to make MAILJMP instructions :)
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llvm-svn: 79777
2009-08-22 21:43:10 +00:00
757dd1cd93
revert 79764, my dependencies failed me again.
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llvm-svn: 79767
2009-08-22 20:56:12 +00:00
df16c223da
remove dead member.
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llvm-svn: 79764
2009-08-22 20:50:18 +00:00
7b26fce23e
Rename TargetAsmInfo (and its subclasses) to MCAsmInfo.
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llvm-svn: 79763
2009-08-22 20:48:53 +00:00
a7668ff636
Revert r79563
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llvm-svn: 79691
2009-08-21 23:12:47 +00:00
773416e062
revert r79562 + r79563
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llvm-svn: 79690
2009-08-21 23:12:15 +00:00
f407dbbb1a
revert r79631
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llvm-svn: 79686
2009-08-21 23:08:45 +00:00
6af22f02ef
revert 79631
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llvm-svn: 79685
2009-08-21 23:08:09 +00:00
08b437d600
Fix a problem noticed by gcc-4.4:
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warning: comparison is always true due to limited range of data type.
llvm-svn: 79642
2009-08-21 17:16:10 +00:00
2f0e8f55f5
Fix -Asserts warning.
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llvm-svn: 79636
2009-08-21 16:17:36 +00:00
9ae3bcb79e
Add a pass to do call graph analyis to overlay the autos and frame sections of
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leaf functions. This pass will be extended to color other nodes of the call tree
as well in future.
llvm-svn: 79631
2009-08-21 15:22:33 +00:00
64965aafe7
Remove #include <iostream>.
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llvm-svn: 79603
2009-08-21 06:52:44 +00:00
a874d82492
part of the previous commit for PIC16 ISR implementation.
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llvm-svn: 79563
2009-08-20 19:34:18 +00:00
686e9f55dc
Implement support for ISRs.
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Clone functions that are shared between the Main thread and Interrupt thread.
CallSites are changed in AsmPrinter currently. A better solution would have been to modify the legalizer (SoftenFloat) to allow targets to change the name of libcalls for float operations. But that currently breaks other targets.
Also, cloing of automatic variables is done AsmPrinter, a better approach would
be to use the ValueMap in CloneFunction itself.
llvm-svn: 79562
2009-08-20 19:28:24 +00:00
4b7dadb76e
eliminate AsmPrinter::SwitchToSection and just have clients
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talk to the MCStreamer directly instead.
llvm-svn: 79405
2009-08-19 05:49:37 +00:00
1e5027aaef
Revert a few changes that were done in 78603.
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PIC16DebugInfo currently rely on NameStr of composite type descriptors to uniquely
identify debug info for two aggregate type decls with same name.
This implementation will change when we have MDNodes based debug info implemenatation in place
llvm-svn: 79097
2009-08-15 14:36:48 +00:00
84ff2c9348
update for rename.
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llvm-svn: 79082
2009-08-15 06:14:07 +00:00
6362cbe64e
rename PIC16Section.h -> MCSectionPIC16.h for consistency with
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the class it defines.
llvm-svn: 79081
2009-08-15 06:13:40 +00:00
c01ed862c8
Reapply pieces of 78914 reverted in 78916, this has been fixed.
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llvm-svn: 78921
2009-08-13 17:08:54 +00:00
e95b32b057
Remove obsoleted files (from AsmPrinter move)
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llvm-svn: 78917
2009-08-13 16:57:03 +00:00
ca232776ec
Revert r78914, as it was breaking the build.
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llvm-svn: 78916
2009-08-13 16:54:39 +00:00
89ec31a26a
Move PIC16 AsmPrinter to PIC16/AsmPrinter directory.
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Remove CooperTargetMachine, as currently only one is supported.
llvm-svn: 78914
2009-08-13 16:37:05 +00:00
5ed8c4212a
make PIC16 unique its own sections instead of having mcontext do it.
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llvm-svn: 78871
2009-08-13 00:26:52 +00:00
1fe315fe13
some compiler don't get string from TLOF.h implicitly or something.
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llvm-svn: 78864
2009-08-12 23:53:59 +00:00
Jim Grosbach