Commit Graph

133 Commits

Author SHA1 Message Date
Manman Ren 983a16c08a Debug Info: clean up usage of Verify.
No functionality change.
It should suffice to check the type of a debug info metadata, instead of
calling Verify. For cases where we know the type of a DI metadata, use
assert.

Also update testing cases to make them conform to the format of DI classes.

llvm-svn: 185135
2013-06-28 05:43:10 +00:00
Bill Wendling 0ccf31007f Don't cache the TLI object since we have access to it through TargetMachine already.
llvm-svn: 184346
2013-06-19 20:32:16 +00:00
Bill Wendling 8db01cb262 Don't cache the TargetLoweringInfo object inside of the FunctionLowering object.
The TargetLoweringInfo object is owned by the TargetMachine. In the future, the
TargetMachine object may change, which may also change the TargetLoweringInfo
object.

llvm-svn: 183356
2013-06-06 00:11:39 +00:00
Bob Wilson 67bbf3aa0c Revert 172027 and 174336. Remove diagnostics about over-aligned stack objects.
Aside from the question of whether we report a warning or an error when we
can't satisfy a requested stack object alignment, the current implementation
of this is not good.  We're not providing any source location in the diagnostics
and the current warning is not connected to any warning group so you can't
control it.  We could improve the source location somewhat, but we can do a
much better job if this check is implemented in the front-end, so let's do that
instead.  <rdar://problem/13127907>

llvm-svn: 174741
2013-02-08 20:35:15 +00:00
Manman Ren 207bcbacca Stack Alignment: throw error if we can't satisfy the minimal alignment
requirement when creating stack objects in MachineFrameInfo.

Add CreateStackObjectWithMinAlign to throw error when the minimal alignment
can't be achieved and to clamp the alignment when the preferred alignment
can't be achieved. Same is true for CreateVariableSizedObject.
Will not emit error in CreateSpillStackObject or CreateStackObject.

As long as callers of CreateStackObject do not assume the object will be
aligned at the requested alignment, we should not have miscompile since
later optimizations which look at the object's alignment will have the correct
information.

rdar://12713765

llvm-svn: 172027
2013-01-10 01:10:10 +00:00
Chandler Carruth 9fb823bbd4 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00
Bill Wendling 74dba875e2 Remove the Function::getRetAttributes method in favor of using the AttributeSet accessor method.
llvm-svn: 171256
2012-12-30 13:01:51 +00:00
Patrik Hagglund bad545ccba Change TargetLowering::RegisterTypeForVT to contain MVTs, instead of
EVTs.

llvm-svn: 170535
2012-12-19 11:48:16 +00:00
Patrik Hagglund 5e6c361bc0 Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.
Accordingly, add helper funtions getSimpleValueType (in parallel to
getValueType) in SDValue, SDNode, and TargetLowering.

This is the first, in a series of patches.

This is the second attempt. In the first attempt (r169837), a few
getSimpleVT() were hoisted too far, detected by bootstrap failures.

llvm-svn: 170104
2012-12-13 06:34:11 +00:00
Patrik Hagglund e98b7a0389 Revert EVT->MVT changes, r169836-169851, due to buildbot failures.
llvm-svn: 169854
2012-12-11 11:14:33 +00:00
Patrik Hagglund 03e9628cfa Change TargetLowering::RegisterTypeForVT to contain MVTs, instead of
EVTs.

llvm-svn: 169848
2012-12-11 10:09:23 +00:00
Patrik Hagglund 3708e548f8 Change TargetLowering::getRegClassFor to take an MVT, instead of EVT.
Accordingly, add helper funtions getSimpleValueType (in parallel to
getValueType) in SDValue, SDNode, and TargetLowering.

This is the first, in a series of patches.

llvm-svn: 169837
2012-12-11 09:10:33 +00:00
Chandler Carruth ed0881b2a6 Use the new script to sort the includes of every file under lib.
Sooooo many of these had incorrect or strange main module includes.
I have manually inspected all of these, and fixed the main module
include to be the nearest plausible thing I could find. If you own or
care about any of these source files, I encourage you to take some time
and check that these edits were sensible. I can't have broken anything
(I strictly added headers, and reordered them, never removed), but they
may not be the headers you'd really like to identify as containing the
API being implemented.

Many forward declarations and missing includes were added to a header
files to allow them to parse cleanly when included first. The main
module rule does in fact have its merits. =]

llvm-svn: 169131
2012-12-03 16:50:05 +00:00
Micah Villmow cdfe20b97f Move TargetData to DataLayout.
llvm-svn: 165402
2012-10-08 16:38:25 +00:00
Nadav Rotem 7c277da364 Add a new optimization pass: Stack Coloring, that merges disjoint static allocations (allocas). Allocas are known to be
disjoint if they are marked by disjoint lifetime markers (@llvm.lifetime.XXX intrinsics).

llvm-svn: 163299
2012-09-06 09:17:37 +00:00
Bill Wendling e38859dc8e Move lib/Analysis/DebugInfo.cpp to lib/VMCore/DebugInfo.cpp and
include/llvm/Analysis/DebugInfo.h to include/llvm/DebugInfo.h.

The reasoning is because the DebugInfo module is simply an interface to the
debug info MDNodes and has nothing to do with analysis.

llvm-svn: 159312
2012-06-28 00:05:13 +00:00
Eric Christopher 219d51d649 Tabs, formatting and long lines oh my!
llvm-svn: 151334
2012-02-24 01:59:01 +00:00
Eric Christopher 18c6be7132 More newline cleanups.
llvm-svn: 151235
2012-02-23 03:39:43 +00:00
Michael J. Spencer 8b98bf2d6b Properly emit _fltused with FastISel. Refactor to share code with SDAG.
Patch by Joe Groff!

llvm-svn: 151183
2012-02-22 19:06:13 +00:00
Bill Wendling a4237652d2 Remove the eh.exception and eh.selector intrinsics. Also remove a hack to copy
over the catch information. The catch information is now tacked to the invoke
instruction.

llvm-svn: 149326
2012-01-31 01:46:13 +00:00
Bill Wendling 645eadac67 An array of chars of length 8 will also cause the stack protector to be inserted
into the function. Reflect that here so that the array will be placed next to
the SP.
<rdar://problem/10128329>

llvm-svn: 143590
2011-11-02 23:20:58 +00:00
Devang Patel 9d904e1a97 Directly point debug info to the stack slot of the arugment, instead of trying to keep track of vreg in which it the arugment is copied. The LiveDebugVariable can keep track of variable's ranges.
llvm-svn: 139330
2011-09-08 22:59:09 +00:00
Bill Wendling 247fd3bf59 Add the support in code-gen for the landingpad instruction lowering.
The landingpad instruction is lowered into the EXCEPTIONADDR and EHSELECTION
SDNodes. The information from the landingpad instruction is harvested by the
'AddLandingPadInfo' function. The new EH uses the current EH scheme in the
back-end. This will change once we switch over to the new scheme. (Reviewed by
Jakob!)

llvm-svn: 137880
2011-08-17 21:56:44 +00:00
Bill Wendling ad088e6724 Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.

llvm-svn: 136556
2011-07-30 05:42:50 +00:00
Bill Wendling 7fa7fe6b58 Add the AddLandingPadInfo function.
AddLandingPadInfo takes a landingpad instruction and grabs all of the
information from it that it needs for EH table generation.

llvm-svn: 136429
2011-07-28 23:42:57 +00:00
Chris Lattner 229907cd11 land David Blaikie's patch to de-constify Type, with a few tweaks.
llvm-svn: 135375
2011-07-18 04:54:35 +00:00
Eric Christopher 0713a9d8fc Add a parameter to CCState so that it can access the MachineFunction.
No functional change.

Part of PR6965

llvm-svn: 132763
2011-06-08 23:55:35 +00:00
Rafael Espindola e53b7d1a11 Make codegen able to handle values of empty types. This is one way
to fix PR9900. I will keep it open until sable is able to comment on it.

llvm-svn: 131294
2011-05-13 15:18:06 +00:00
Eli Friedman 441a01a2b8 Avoid extra vreg copies for arguments passed in registers. Specifically, this can make MachineCSE more effective in some cases (especially in small functions). PR8361 / part of rdar://problem/8259436 .
llvm-svn: 130928
2011-05-05 16:53:34 +00:00
Bill Wendling f3658f3872 There are times when the landing pad won't have a call to 'eh.selector' in
it. It's been assumed up til now that it would be in its immediate
successor. However, this isn't necessarily the case. It could be in one of its
successor's successors.

Modify the code to more thoroughly check for an 'eh.selector' call in
successors. It only looks at a successor if we get there as a result of an
unconditional branch.

Testcase ObjC/exceptions-4.m in r126968.

llvm-svn: 126969
2011-03-03 23:14:05 +00:00
Cameron Zwarich 4c82cd21ed Set NumSignBits to 1 if KnownZero/KnownOne are being zero extended. In theory it
is possible to do better if the high bit is set in either KnownZero/KnownOne, but
in practice NumSignBits is always 1 when we are zero extending because nothing
is known about that register.

llvm-svn: 126465
2011-02-25 01:11:01 +00:00
Cameron Zwarich d2f3041c7f We only want to zero extend the existing information if the bit width is
actually larger.

llvm-svn: 126464
2011-02-25 01:10:55 +00:00
Cameron Zwarich a62fc89a04 Merge information about the number of zero, one, and sign bits of live-out
registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126380
2011-02-24 10:00:25 +00:00
Cameron Zwarich 988faf91bd Track blocks visited in reverse postorder.
llvm-svn: 126377
2011-02-24 10:00:13 +00:00
Cameron Zwarich f8b22b3483 Roll out r126169 and r126170 in an attempt to fix the selfhost bot.
llvm-svn: 126185
2011-02-22 03:24:52 +00:00
Cameron Zwarich 800f85baf9 Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.

llvm-svn: 126170
2011-02-22 00:46:27 +00:00
Anton Korobeynikov 2f93128109 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
llvm-svn: 123170
2011-01-10 12:39:04 +00:00
Devang Patel 86ec8b3a3f Reapply r112623. Included additional check for unused byval argument.
llvm-svn: 112659
2010-08-31 22:22:42 +00:00
Devang Patel 529f248eb4 Revert r112623. It is causing self host build failures.
llvm-svn: 112631
2010-08-31 19:41:03 +00:00
Devang Patel 8559932d36 Remember byval argument's frame index during argument lowering and use this info to emit debug info.
Fixes Radar 8367011.

llvm-svn: 112623
2010-08-31 18:50:09 +00:00
Bill Wendling 0ff1ef650b It's better to have the arrays, which would trigger the creation of stack
protectors, to be near the stack protectors on the stack. Accomplish this by
tagging the stack object with a predicate that indicates that it would trigger
this. In the prolog-epilog inserter, assign these objects to the stack after the
stack protector but before the other objects.

llvm-svn: 109481
2010-07-27 01:55:19 +00:00
Dan Gohman 1e936277c3 Revert r108369, sorting llvm.dbg.declare information by source position,
since it doesn't work for front-ends which don't emit column information
(which includes llvm-gcc in its present configuration), and doesn't
work for clang for K&R style variables where the variables are declared
in a different order from the parameter list.

Instead, make a separate pass through the instructions to collect the
llvm.dbg.declare instructions in order. This ensures that the debug
information for variables is emitted in this order.

llvm-svn: 108538
2010-07-16 17:54:27 +00:00
Dan Gohman d7b5ce3312 Reapply bottom-up fast-isel, with several fixes for x86-32:
- Check getBytesToPopOnReturn().
 - Eschew ST0 and ST1 for return values.
 - Fix the PIC base register initialization so that it doesn't ever
   fail to end up the top of the entry block.

llvm-svn: 108039
2010-07-10 09:00:22 +00:00
Bob Wilson 6586e9b203 --- Reverse-merging r107947 into '.':
U    utils/TableGen/FastISelEmitter.cpp
--- Reverse-merging r107943 into '.':
U    test/CodeGen/X86/fast-isel.ll
U    test/CodeGen/X86/fast-isel-loads.ll
U    include/llvm/Target/TargetLowering.h
U    include/llvm/Support/PassNameParser.h
U    include/llvm/CodeGen/FunctionLoweringInfo.h
U    include/llvm/CodeGen/CallingConvLower.h
U    include/llvm/CodeGen/FastISel.h
U    include/llvm/CodeGen/SelectionDAGISel.h
U    lib/CodeGen/LLVMTargetMachine.cpp
U    lib/CodeGen/CallingConvLower.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
U    lib/CodeGen/SelectionDAG/FunctionLoweringInfo.cpp
U    lib/CodeGen/SelectionDAG/FastISel.cpp
U    lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
U    lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
U    lib/CodeGen/SelectionDAG/InstrEmitter.cpp
U    lib/CodeGen/SelectionDAG/TargetLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.cpp
U    lib/Target/XCore/XCoreISelLowering.h
U    lib/Target/X86/X86ISelLowering.cpp
U    lib/Target/X86/X86FastISel.cpp
U    lib/Target/X86/X86ISelLowering.h

llvm-svn: 107987
2010-07-09 16:37:18 +00:00
Gabor Greif 52617fc462 cache result of operator*
llvm-svn: 107980
2010-07-09 16:08:33 +00:00
Dan Gohman 0b5aa1cdd3 Re-apply bottom-up fast-isel, with fixes. Be very careful to avoid emitting
a DBG_VALUE after a terminator, or emitting any instructions before an EH_LABEL.

llvm-svn: 107943
2010-07-09 00:39:23 +00:00
Dan Gohman e75704369d Revert 107840 107839 107813 107804 107800 107797 107791.
Debug info intrinsics win for now.

llvm-svn: 107850
2010-07-08 01:00:56 +00:00
Dan Gohman e7ccc51cc1 Implement bottom-up fast-isel. This has the advantage of not requiring
a separate DCE pass over MachineInstrs.

llvm-svn: 107804
2010-07-07 19:20:32 +00:00
Dan Gohman e784616fbb Move FunctionLoweringInfo.h out into include/llvm/CodeGen. This will
allow target-specific fast-isel code to make use of it directly.

llvm-svn: 107787
2010-07-07 16:01:37 +00:00
Dan Gohman 93f5920914 Rename CreateReg to CreateRegs, and MakeReg to CreateReg.
llvm-svn: 107451
2010-07-02 00:10:16 +00:00
Dan Gohman 85e02e9340 Rename CreateRegForValue to CreateReg, and change its argument
from a Value to a Type, because it doesn't actually care about
the Value.

llvm-svn: 107383
2010-07-01 03:55:39 +00:00
Gabor Greif 647d9c9797 use ArgOperand API
llvm-svn: 107282
2010-06-30 13:45:50 +00:00
Gabor Greif e4eed709d4 use ArgOperand API
llvm-svn: 106828
2010-06-25 08:24:59 +00:00
Gabor Greif f6207e0a80 prune an include
llvm-svn: 106827
2010-06-25 08:16:50 +00:00
Dan Gohman d16aa541af SelectionDAG shouldn't have a FunctionLoweringInfo member. RegsForValue
shouldn't have a TargetLoweringInfo member. And FunctionLoweringInfo::set
doesn't needs its EnableFastISel argument.

llvm-svn: 105101
2010-05-29 17:03:36 +00:00
Dan Gohman ec74444d3e Remove the code for special-casing byval for fast-isel. SelectionDAG
handles argument lowering anyway, so there's no need for special
casing here.

llvm-svn: 102828
2010-05-01 02:44:23 +00:00
Evan Cheng 6e822459ed Replace r102368 with code that's less fragile. This creates DBG_VALUE instructions for function arguments early and insert them after instruction selection is done.
llvm-svn: 102554
2010-04-28 23:08:54 +00:00
Dan Gohman 450aa64fc1 Move several SelectionDAG-independent utility functions out of the
SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975
2010-04-21 01:22:34 +00:00
Dan Gohman 7c845e4ea4 Sink this use_empty() check into isUsedOutsideOfDefiningBlock.
llvm-svn: 101902
2010-04-20 14:50:13 +00:00
Dan Gohman 7b7f0883fe If a PHI node somehow has debug info, propogate it to the MachineInstr PHI.
llvm-svn: 101901
2010-04-20 14:48:02 +00:00
Dan Gohman 0f055d3f56 Don't iterate through the whole block just to find the PHI nodes.
llvm-svn: 101900
2010-04-20 14:46:25 +00:00
Dan Gohman a91754da67 Move isInTailCallPosition out of SelectionDAGBuilder, as it isn't
SelectionDAG-specific.

llvm-svn: 101801
2010-04-19 18:41:46 +00:00
Dan Gohman 21cea8ac2e Use const qualifiers with TargetLowering. This eliminates several
const_casts, and it reinforces the design of the Target classes being
immutable.

SelectionDAGISel::IsLegalToFold is now a static member function, because
PIC16 uses it in an unconventional way. There is more room for API
cleanup here.

And PIC16's AsmPrinter no longer uses TargetLowering.

llvm-svn: 101635
2010-04-17 15:26:15 +00:00
Eric Christopher 7258dcd77f Revert 101465, it broke internal OpenGL testing.
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.

llvm-svn: 101579
2010-04-16 23:37:20 +00:00
Gabor Greif f375520f7b reapply r101434
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101465
2010-04-16 15:33:14 +00:00
Gabor Greif 403e9694f9 back out r101423 and r101397, they break llvm-gcc self-host on darwin10
llvm-svn: 101434
2010-04-16 01:16:20 +00:00
Gabor Greif 33ae80bff7 reapply r101364, which has been backed out in r101368
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101397
2010-04-15 20:51:13 +00:00
Gabor Greif 9fd00c7d25 back out r101364, as it trips the linux nightlybot on some clang C++ tests
llvm-svn: 101368
2010-04-15 12:46:56 +00:00
Gabor Greif aafd209632 rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary

llvm-svn: 101364
2010-04-15 10:49:53 +00:00
Dan Gohman 913c998703 Add more const qualifiers for LLVM IR pointers in CodeGen.
llvm-svn: 101342
2010-04-15 04:33:49 +00:00
Dan Gohman bcaf681cde Add const qualifiers to CodeGen's use of LLVM IR constructs.
llvm-svn: 101334
2010-04-15 01:51:59 +00:00
Dan Gohman 7deb447781 Factor out EH landing pad code into a separate function, and constify
a bunch of stuff to support it.

llvm-svn: 101273
2010-04-14 19:53:31 +00:00
Dan Gohman 8ebcbe949a Pull utility routines with no SelectionDAG dependence out of
SelectionDAGBuilder. FunctionLoweringInfo isn't an ideal place for
them to live, but it's better than SelectionDAGBuilder for now.

llvm-svn: 101267
2010-04-14 18:31:02 +00:00
Dan Gohman ad0b3ea3cc Move this assert out of SelectionDAGISel into FunctionLoweringInfo, and
drop the redundant #ifndef NDEBUG.

llvm-svn: 101261
2010-04-14 17:11:23 +00:00
Dan Gohman 69e8e322d9 Sink landing-pad marking code out of
SelectionDAGISel::runOnMachineFunction into FunctionLowering.

llvm-svn: 101252
2010-04-14 16:32:56 +00:00
Dan Gohman f57117d166 It's not necessary to recompute EB here.
llvm-svn: 101251
2010-04-14 16:30:40 +00:00
Bill Wendling 6888e798d3 Forgot the part where we handle the ".llvm.eh.catch.all.value".
llvm-svn: 99697
2010-03-27 01:24:30 +00:00
Chris Lattner b06015aa69 move target-independent opcodes out of TargetInstrInfo
into TargetOpcodes.h.  #include the new TargetOpcodes.h
into MachineInstr.  Add new inline accessors (like isPHI())
to MachineInstr, and start using them throughout the 
codebase.

llvm-svn: 95687
2010-02-09 19:54:29 +00:00
Evan Cheng 32bfe1e837 Trim unneeded includes.
llvm-svn: 94105
2010-01-21 21:44:43 +00:00
Benjamin Kramer ccce8bae14 Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer.
llvm-svn: 92726
2010-01-05 13:12:22 +00:00
Dan Gohman 9d72cbf2d5 Move CopyCatchInfo into FunctionLoweringInfo.cpp too, for consistency.
llvm-svn: 89683
2009-11-23 18:12:11 +00:00
Dan Gohman ad97b3dbd0 Move some more code out of SelectionDAGBuild.cpp and into
FunctionLoweringInfo.cpp.

llvm-svn: 89674
2009-11-23 17:42:46 +00:00
Dan Gohman a3624b6099 Move the FunctionLoweringInfo class and some related utility functions out
of SelectionDAGBuild.h/cpp into its own files, to help separate
general lowering logic from SelectionDAG-specific lowering logic.

llvm-svn: 89667
2009-11-23 17:16:22 +00:00