adjacent uses of a dead basic block from the same user. This fixes PR5596.

llvm-svn: 89658

the body to not pass the name for the isSigned parameter.  However it
seems that changing prototypes is a big-no-no, so here I revert the
previous change and pass "true" for isSigned, meaning this always does
a signed cast, which was the previous behaviour assuming the name was
not NULL!  Some other C function needs to be introduced for the general
case of signed or unsigned casts.  This hopefully unbreaks the ocaml
binding.

llvm-svn: 89648

llvm-svn: 89646

llvm-svn: 89645

llvm-svn: 89644

llvm-svn: 89642

llvm-svn: 89641

fixes part of PR5438.

llvm-svn: 89639

llvm-svn: 89627

tell debug info which base register to use to reference a frame index on a
per-index basis. This is useful, for example, in the presence of dynamic
stack realignment when local variables are indexed via the stack pointer and
stack-based arguments via the frame pointer.

llvm-svn: 89620

llvm-svn: 89618

llvm-svn: 89612

Teach MachineBasicBlock::updateTerminator() to handle a failing TII->ReverseBranchCondition(Cond) call.

This fixes the MallocBench/cfrac test case regression.

llvm-svn: 89608

llvm-svn: 89602

llvm-svn: 89601

llvm-svn: 89600

The hasNoModRefInfoForCalls isn't worth it as a filter because 
basicaa provides m/r info and everything chains to it, so remove
it.

llvm-svn: 89599

rest of the file.

llvm-svn: 89577

llvm-svn: 89576

Minor optimization: when doing eq/ne comparions and RHS is a constant - swap operands, this will allow us to fold imm into comparison.

llvm-svn: 89574

llvm-svn: 89573

llvm-svn: 89572

llvm-svn: 89571

isn't necessary.

llvm-svn: 89568

llvm-svn: 89567

backtraces.

llvm-svn: 89562

Add predicate operand to NEON instructions. Fix lots (but not all) 80 col violations in ARMInstrNEON.td.

llvm-svn: 89542

Allow target to disable if-converting predicable instructions. e.g. NEON instructions under ARM mode.

llvm-svn: 89541

llvm-svn: 89537

llvm-svn: 89536

When splitting a critical edge, the registers live through the edge are:

- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.

This allows the coalescer to eliminate even more phi joins.

llvm-svn: 89530

object size intrinsic and verify return type is correct. Collect various
code in one place.

llvm-svn: 89523

llvm-svn: 89522

and stores, handle the case where the element size is not
a valid target type correctly (PPC).

llvm-svn: 89521

DIEs are created from MDNode, which are already uniqued. And DwarfDebug already uses ValueMaps to find and use existing DIE for a given MDNode.

llvm-svn: 89518

Added two SubtargetFeatures::AddFeatures methods, which accept a comma-separated string or already parsed command line parameters as input, and some code re-factoring to use these new methods.

llvm-svn: 89516

llvm-svn: 89511

llvm-svn: 89510

llvm-svn: 89509

llvm-svn: 89507