Commit Graph

171 Commits

Author SHA1 Message Date
Benjamin Kramer
901b85888c Include cstdio in a few place that depended on getting it transitively through StringExtras.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153328 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23 11:35:30 +00:00
Benjamin Kramer
e68e77569f Move ftostr into its last user (cppbackend) and simplify it a bit.
New code should use raw_ostream.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@153326 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-23 11:26:29 +00:00
Stepan Dyatkovskiy
3d3abe0852 llvm::SwitchInst
Renamed methods caseBegin, caseEnd and caseDefault with case_begin, case_end, and case_default.
Added some notes relative to case iterators.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152532 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-11 06:09:17 +00:00
Stepan Dyatkovskiy
c10fa6c801 Taken into account Duncan's comments for r149481 dated by 2nd Feb 2012:
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20120130/136146.html

Implemented CaseIterator and it solves almost all described issues: we don't need to mix operand/case/successor indexing anymore. Base iterator class is implemented as a template since it may be initialized either from "const SwitchInst*" or from "SwitchInst*".

ConstCaseIt is just a read-only iterator.
CaseIt is read-write iterator; it allows to change case successor and case value.

Usage of iterator allows totally remove resolveXXXX methods. All indexing convertions done automatically inside the iterator's getters.

Main way of iterator usage looks like this:
SwitchInst *SI = ... // intialize it somehow

for (SwitchInst::CaseIt i = SI->caseBegin(), e = SI->caseEnd(); i != e; ++i) {
  BasicBlock *BB = i.getCaseSuccessor();
  ConstantInt *V = i.getCaseValue();
  // Do something.
}

If you want to convert case number to TerminatorInst successor index, just use getSuccessorIndex iterator's method.
If you want initialize iterator from TerminatorInst successor index, use CaseIt::fromSuccessorIndex(...) method.

There are also related changes in llvm-clients: klee and clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@152297 91177308-0d34-0410-b5e6-96231b3b80d8
2012-03-08 07:06:20 +00:00
Craig Topper
bc2198133a Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149961 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-07 02:50:20 +00:00
Bill Wendling
aa5abe88d6 [unwind removal] We no longer have 'unwind' instructions being generated, so
remove the code that handles them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149901 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-06 21:16:41 +00:00
Duncan Sands
23f612113a Remove dead test: this was already checked and handled a few lines
above.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149841 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:30:06 +00:00
Duncan Sands
853066a32a Don't initialize CV in terms of itself! Spotted by GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 14:16:09 +00:00
Chris Lattner
18c7f80b3e reapply the patches reverted in r149470 that reenable ConstantDataArray,
but with a critical fix to the SelectionDAG code that optimizes copies
from strings into immediate stores: the previous code was stopping reading
string data at the first nul.  Address this by adding a new argument to
llvm::getConstantStringInfo, preserving the behavior before the patch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149800 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 02:29:43 +00:00
Stepan Dyatkovskiy
24473120a2 SwitchInst refactoring.
The purpose of refactoring is to hide operand roles from SwitchInst user (programmer). If you want to play with operands directly, probably you will need lower level methods than SwitchInst ones (TerminatorInst or may be User). After this patch we can reorganize SwitchInst operands and successors as we want.

What was done:

1. Changed semantics of index inside the getCaseValue method:
getCaseValue(0) means "get first case", not a condition. Use getCondition() if you want to resolve the condition. I propose don't mix SwitchInst case indexing with low level indexing (TI successors indexing, User's operands indexing), since it may be dangerous.
2. By the same reason findCaseValue(ConstantInt*) returns actual number of case value. 0 means first case, not default. If there is no case with given value, ErrorIndex will returned.
3. Added getCaseSuccessor method. I propose to avoid usage of TerminatorInst::getSuccessor if you want to resolve case successor BB. Use getCaseSuccessor instead, since internal SwitchInst organization of operands/successors is hidden and may be changed in any moment.
4. Added resolveSuccessorIndex and resolveCaseIndex. The main purpose of these methods is to see how case successors are really mapped in TerminatorInst.
4.1 "resolveSuccessorIndex" was created if you need to level down from SwitchInst to TerminatorInst. It returns TerminatorInst's successor index for given case successor.
4.2 "resolveCaseIndex" converts low level successors index to case index that curresponds to the given successor.

Note: There are also related compatability fix patches for dragonegg, klee, llvm-gcc-4.0, llvm-gcc-4.2, safecode, clang.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149481 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01 07:49:51 +00:00
Argyrios Kyrtzidis
91766fe066 Revert Chris' commits up to r149348 that started causing VMCoreTests unit test to fail.
These are:

r149348
r149351
r149352
r149354
r149356
r149357
r149361
r149362
r149364
r149365

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149470 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-01 04:51:17 +00:00
Chris Lattner
1b2f643753 with recent changes, ConstantArray is never a "string". Remove the associated
methods and constant fold the clients to false.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149362 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-31 06:05:00 +00:00
Chris Lattner
29cc6cb4d1 C++, CBE, and TLOF support for ConstantDataSequential
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-24 14:17:05 +00:00
Nicolas Geoffray
8194683d5a Use Attributes::None instead of 0 after r148553 change on Attributes from unsigned to their own class.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148665 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-22 20:05:26 +00:00
David Blaikie
4d6ccb5f68 More dead code removal (using -Wunreachable-code)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148578 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-20 21:51:11 +00:00
David Blaikie
2bd335470f Remove unnecessary default cases in switches that cover all enum values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147855 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-10 16:47:17 +00:00
Evan Cheng
b95fc31aa2 Sink codegen optimization level into MCCodeGenInfo along side relocation model
and code model. This eliminates the need to pass OptLevel flag all over the
place and makes it possible for any codegen pass to use this information.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@144788 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-16 08:38:26 +00:00
Eli Friedman
5b7cc334c8 Add missing argument for atomic instructions in c++ backend. PR11268, part 2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143712 91177308-0d34-0410-b5e6-96231b3b80d8
2011-11-04 17:29:35 +00:00
Eli Friedman
a7dd4dfcca Add support for new atomics to cpp backend. Misc other fixes while I'm here. PR11268.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143406 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-31 23:59:22 +00:00
Nicolas Geoffray
f8557957fb Always check if a method or a type exist before trying to create it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141490 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-08 11:56:36 +00:00
Rafael Espindola
25456ef74c Add the returns_twice attribute to LLVM.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141001 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-03 14:45:37 +00:00
Eli Friedman
bb5a7442e3 Clean up uses of switch instructions so they are not dependent on the operand ordering. Patch by Stepan Dyatkovskiy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-29 20:21:17 +00:00
Richard Trieu
23946fcaae Change:
assert(!"error message");

To:

  assert(0 && "error message");

which is more consistant across the code base.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140234 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-21 03:09:09 +00:00
Nick Lewycky
3bca101329 Update the C++ backend to use the new ArrayRef'ified APIs. Patch by arrowdodger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-09-05 18:50:59 +00:00
Evan Cheng
3e74d6fdd2 Move TargetRegistry and TargetSelect from Target to Support where they belong.
These are strictly utilities for registering targets and components.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138450 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-24 18:08:43 +00:00
Chris Lattner
c4d0e9fbdd switch to the new struct apis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137481 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12 18:07:07 +00:00
Bill Wendling
54f1536927 Add missing attributes to the C++ backend's output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137091 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-09 00:47:30 +00:00
Bill Wendling
dccc03b242 Add the 'resume' instruction for the new EH rewrite.
This adds the 'resume' instruction class, IR parsing, and bitcode reading and
writing. The 'resume' instruction resumes propagation of an existing (in-flight)
exception whose unwinding was interrupted with a 'landingpad' instruction (to be
added later).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136589 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-31 06:30:59 +00:00
Bill Wendling
10c6d12a9f Revert r136253, r136263, r136269, r136313, r136325, r136326, r136329, r136338,
r136339, r136341, r136369, r136387, r136392, r136396, r136429, r136430, r136444,
r136445, r136446, r136253 pending review.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136556 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-30 05:42:50 +00:00
Bill Wendling
772fe17a6d Merge the contents from exception-handling-rewrite to the mainline.
This adds the new instructions 'landingpad' and 'resume'.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136253 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-27 20:18:04 +00:00
Nicolas Geoffray
45c8d2bc9c Update generated code to use new API of GetElementPtrInst::Create.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-26 20:52:25 +00:00
Evan Cheng
f16f3476a2 Move CBackend and CppBackend MC initialization to TargetInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135982 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-25 21:44:12 +00:00
Evan Cheng
e78085a3c0 Combine all MC initialization routines into one. e.g. InitializeX86MCAsmInfo,
InitializeX86MCInstrInfo, etc. are combined into InitializeX86TargetMC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135812 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-22 21:58:54 +00:00
Nicolas Geoffray
a056d20167 Update generated CPP code with the new API on CallInst::Create and ConstantExpr::getGetElementPtr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135704 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-21 20:59:21 +00:00
Evan Cheng
439661395f Introduce MCCodeGenInfo, which keeps information that can affect codegen
(including compilation, assembly). Move relocation model Reloc::Model from
TargetMachine to MCCodeGenInfo so it's accessible even without TargetMachine.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135468 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-19 06:37:02 +00:00
Evan Cheng
0e6a052331 Sink getDwarfRegNum, getLLVMRegNum, getSEHRegNum from TargetRegisterInfo down
to MCRegisterInfo. Also initialize the mapping at construction time.

This patch eliminate TargetRegisterInfo from TargetAsmInfo. It's another step
towards fixing the layering violation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135424 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 20:57:22 +00:00
Chris Lattner
db125cfaf5 land David Blaikie's patch to de-constify Type, with a few tweaks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135375 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-18 04:54:35 +00:00
Evan Cheng
1abf2cb59b Rename createAsmInfo to createMCAsmInfo and move registration code to MCTargetDesc to prepare for next round of changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135219 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 23:50:31 +00:00
Nicolas Geoffray
5cf9fcdad1 After type-system-rewrite branch update the Cpp backend to not use OpaqueType.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-14 21:04:35 +00:00
Evan Cheng
59ee62d241 - Eliminate MCCodeEmitter's dependency on TargetMachine. It now uses MCInstrInfo
and MCSubtargetInfo.
- Added methods to update subtarget features (used when targets automatically
  detect subtarget features or switch modes).
- Teach X86Subtarget to update MCSubtargetInfo features bits since the
  MCSubtargetInfo layer can be shared with other modules.
- These fixes .code 16 / .code 32 support since mode switch is updated in
  MCSubtargetInfo so MC code emitter can do the right thing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-11 03:57:24 +00:00
Chris Lattner
1afcace3a3 Land the long talked about "type system rewrite" patch. This
patch brings numerous advantages to LLVM.  One way to look at it
is through diffstat:
 109 files changed, 3005 insertions(+), 5906 deletions(-)

Removing almost 3K lines of code is a good thing.  Other advantages
include:

1. Value::getType() is a simple load that can be CSE'd, not a mutating
   union-find operation.
2. Types a uniqued and never move once created, defining away PATypeHolder.
3. Structs can be "named" now, and their name is part of the identity that
   uniques them.  This means that the compiler doesn't merge them structurally
   which makes the IR much less confusing.
4. Now that there is no way to get a cycle in a type graph without a named
   struct type, "upreferences" go away.
5. Type refinement is completely gone, which should make LTO much MUCH faster
   in some common cases with C++ code.
6. Types are now generally immutable, so we can use "Type *" instead 
   "const Type *" everywhere.

Downsides of this patch are that it removes some functions from the C API,
so people using those will have to upgrade to (not yet added) new API.  
"LLVM 3.0" is the right time to do this.

There are still some cleanups pending after this, this patch is large enough
as-is.




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134829 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09 17:41:24 +00:00
Evan Cheng
ffc0e73046 Change createAsmParser to take a MCSubtargetInfo instead of triple,
CPU, and feature string. Parsing some asm directives can change
subtarget state (e.g. .code 16) and it must be reflected in other
modules (e.g. MCCodeEmitter). That is, the MCSubtargetInfo instance
must be shared.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134795 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-09 05:47:46 +00:00
Dylan Noblesmith
4dd26ddf8e CppBackend: fixup for api change
This broke after r133364.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133709 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 12:11:37 +00:00
Jay Foad
95c3e48f95 Reinstate r133513 (reverted in r133700) with an additional fix for a
-Wshorten-64-to-32 warning in Instructions.h.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 09:09:15 +00:00
Eric Christopher
e59fbc04ad Revert r133513:
"Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512)."

Due to some additional warnings.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133700 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-23 06:24:52 +00:00
Jay Foad
cd35e09a4a Reinstate r133435 and r133449 (reverted in r133499) now that the clang
self-hosted build failure has been fixed (r133512).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133513 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 10:33:19 +00:00
Chad Rosier
a88a0ca808 Revert r133435 and r133449 to appease buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133499 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-21 02:09:03 +00:00
Jay Foad
72f5f313d8 Change how PHINodes store their operands.
Change PHINodes to store simple pointers to their incoming basic blocks,
instead of full-blown Uses.

Note that this loses an optimization in SplitCriticalEdge(), because we
can no longer walk the use list of a BasicBlock to find phi nodes. See
the comment I removed starting "However, the foreach loop is slow for
blocks with lots of predecessors".

Extend replaceAllUsesWith() on a BasicBlock to also update any phi
nodes in the block's successors. This mimics what would have happened
when PHINodes were proper Users of their incoming blocks. (Note that
this only works if OldBB->replaceAllUsesWith(NewBB) is called when
OldBB still has a terminator instruction, so it still has some
successors.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133435 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 14:38:01 +00:00
Jay Foad
c137120bb0 Make better use of the PHINode API.
Change various bits of code to make better use of the existing PHINode
API, to insulate them from forthcoming changes in how PHINodes store
their operands.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133434 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-20 14:18:48 +00:00
Jay Foad
7d715dfe6d Fix a FIXME by making GlobalVariable::getInitializer() return a
const Constant *.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133400 91177308-0d34-0410-b5e6-96231b3b80d8
2011-06-19 18:37:11 +00:00