Teach MachineBasicBlock::print() to annotate instructions and blocks with
SlotIndexes when available.

llvm-svn: 117392

Make CodeGen TBAA-aware.

llvm-svn: 116890

force clients of MachineFunction::getMachineMemOperand to provide a
MachinePointerInfo, propagating the type out a level of API. Remove
the old MachineFunction::getMachineMemOperand impl.

llvm-svn:

force clients of MachineFunction::getMachineMemOperand to provide a
MachinePointerInfo, propagating the type out a level of API. Remove
the old MachineFunction::getMachineMemOperand impl.

llvm-svn: 114393

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start pushing MachinePointerInfo out through the MachineMemOperand interface
to the MachineFunction construction methods.

llvm-svn: 114390

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 i

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

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Remove too-strict assertion. We may want the vreg copy of the physical register
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a

Remove too-strict assertion. We may want the vreg copy of the physical register
to be of a different register class. For example, in Thumb1 if the live-in is
a high register, we want the vreg to be a low register. rdar://8224931

llvm-svn: 109291

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Fix debugging strings.

llvm-svn: 107795

Infer alignments of fixed frame objects when they are constructed. This ensures remat'ed loads from fixed slots have the right alignments.

llvm-svn: 107591

Remove isSS argument from CreateFixedObject. Fixed objects cannot be spill slots so it's always false.

llvm-svn: 107550

Revert r107205 and r107207.

llvm-svn: 107215

Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "o

Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

.globl l_objc_msgSend_fixup_alloc
.weak_definition l_objc_msgSend_fixup_alloc
.section __DATA, __objc_msgrefs, coalesced
.align 3
l_objc_msgSend_fixup_alloc:
.quad _objc_msgSend_fixup
.quad L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

llvm-svn: 107205

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Avoid adding duplicate function live-in's.

llvm-svn: 104560

Add more const qualifiers for LLVM IR pointers in CodeGen.

llvm-svn: 101342

Add const qualifiers to CodeGen's use of LLVM IR constructs.

llvm-svn: 101334

enhance MachineFunction to have a MMI pointer.

llvm-svn: 100414

Ok, third time's the charm. No changes from last time except the CMake
source addition. Apparently the buildbots were wrong about failures.

---

Add some switches helpful for debugging:

-print-be

Ok, third time's the charm. No changes from last time except the CMake
source addition. Apparently the buildbots were wrong about failures.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation. It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100249

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Switch the code generator (except the JIT) onto the new DebugLoc
representation. This eliminates the 'DILocation' MDNodes for
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc

Switch the code generator (except the JIT) onto the new DebugLoc
representation. This eliminates the 'DILocation' MDNodes for
file/line/col tuples from -O0 -g codegen.

This remove the old DebugLoc class, making it a typedef for DebugLoc,
I'll rename NewDebugLoc next.

I didn't update the JIT to use the new apis, so it will continue to
work, but be as slow as before. Someone should eventually do this
or, better yet, rip out the JIT debug info stuff and build the JIT
on top of MC.

llvm-svn: 100209

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Revert 100204. It broke a bunch of tests and apparently changed what passes are run during codegen.

llvm-svn: 100207

Let's try this again. Re-apply 100143 including an apparent missing
<string> include. For some reason the buildbot choked on this while my
builds did not. It's probably due to a difference in syst

Let's try this again. Re-apply 100143 including an apparent missing
<string> include. For some reason the buildbot choked on this while my
builds did not. It's probably due to a difference in system headers.

---

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation. It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100204

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Revert r100143.

llvm-svn: 100146

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after ru

Add some switches helpful for debugging:

-print-before=<Pass Name>

Dump IR before running pass <Pass Name>.

-print-before-all

Dump IR before running each pass.

-print-after-all

Dump IR after running each pass.

These are helpful when tracking down a miscompilation. It is easy to
get IR dumps and do diffs on them, etc.

To make this work well, add a new getPrinterPass API to Pass so that
each kind of pass (ModulePass, FunctionPass, etc.) can create a Pass
suitable for dumping out the kind of object the Pass works on.

llvm-svn: 100143

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Rip out the 'is temporary' nonsense from the MCContext interface to
create symbols. It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixe

Rip out the 'is temporary' nonsense from the MCContext interface to
create symbols. It is extremely error prone and a source of a lot
of the remaining integrated assembler bugs on x86-64.

This fixes rdar://7807601.

llvm-svn: 99902

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Stop trying to merge identical jump tables. This had been inadvertently
disabled for several months (since svn r88806) and no one noticed. My fix
for pr6543 yesterday reenabled it, but broke the AR

Stop trying to merge identical jump tables. This had been inadvertently
disabled for several months (since svn r88806) and no one noticed. My fix
for pr6543 yesterday reenabled it, but broke the ARM port's code for using
TBB/TBH. Rather than adding a target hook to disable merging for Thumb2 only,
I'm just taking this out. It is not common to have identical jump tables,
the code we used to merge them was O(N^2), and it only helps code size, not
performance.

llvm-svn: 98977

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Define placement new wrappers for BumpPtrAllocator and
RecyclingAllocator to allow client code to be simpler, and
simplify several clients.

llvm-svn: 98847

Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table. The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the

Fix pr6543: svn r88806 changed MachineJumpTableInfo::getJumpTableIndex() to
always create a new jump table. The intention was to avoid merging jump
tables in SelectionDAGBuilder, and to wait for the branch folding pass to
merge tables. Unfortunately, the same getJumpTableIndex() method is also
used to merge tables in branch folding, so as a result of this change
branch tables are never merged. Worse, the branch folding code is expecting
getJumpTableIndex to always return the index of an existing table, but with
this change, it never does so. In at least some cases, e.g., pr6543, this
creates references to non-existent tables.

I've fixed the problem by adding a new createJumpTableIndex function, which
will always create a new table, and I've changed getJumpTableIndex to only
look at existing tables.

llvm-svn: 98845

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