changes before doing phi lowering for switches.

llvm-svn: 102809

indexes could be of a different value type. Or not even using the same SDNode
for the constant (weird, I know). Compare the actual values instead of the
pointers.

llvm-svn: 102791

instruction selection is done; it's confusing to see parts of it printed,
while other parts are omitted, along the way.

llvm-svn: 102771

llvm-svn: 102742

comparisons sign-extended to a different bitwidth than the
comparison operands.

llvm-svn: 102721

llvm-svn: 102680

easy cases.

llvm-svn: 102678

llvm-svn: 102661

llvm-svn: 102653

llvm-svn: 102606

llvm-svn: 102602

llvm-svn: 102590

llvm-svn: 102585

llvm-svn: 102584

llvm-svn: 102581

llvm-svn: 102573

llvm-svn: 102558

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

While lowering dbg_declare, emit DBG_VALUE machine instruction if alloca matching llvm.dbg.declare intrinsic is missing.

llvm-svn: 102513

llvm-svn: 102492

llvm-svn: 102463

- Catch more further dag combine opportunities as result of operand promotion, e.g. (i32 anyext (i16 trunc (i32 x))) -> (i32 x)

llvm-svn: 102455

of the dbg testsuite regressions.  I don't think this is
really the right fix; this change exposed an existing problem
upstream somewhere.

llvm-svn: 102410

to print the operand.

llvm-svn: 102395

llvm-svn: 102380

produces a comment on targets that support it, but
the Dwarf writer is not hooked up yet.

llvm-svn: 102372

- Move TargetLowering::EmitTargetCodeForFrameDebugValue to TargetInstrInfo and rename it to emitFrameIndexDebugValue.
- Teach spiller to modify DBG_VALUE instructions to reference spill slots.

llvm-svn: 102323

form of DEBUG_VALUE, as it doesn't have reasonable default
behavior for unsupported targets.  Add a new hook instead.
No functional change.

llvm-svn: 102320

xs

llvm-svn: 102316

When a load operand is promoted to an extload, replace other uses with uses of extload result truncated.

llvm-svn: 102236

testcase yet, as the testcase now fails downstream.

llvm-svn: 102228

llvm-svn: 102202

itself too.

llvm-svn: 102176

into SelectionDAGBuilder itself.

llvm-svn: 102128

and into SelectionDAGBuilder and FastISel.

llvm-svn: 102123

- Some code refactoring.

llvm-svn: 102111

llvm-svn: 102110

FunctionLoweringInfo, as it isn't SelectionDAG-specific. This isn't
completely natural, as PHI node state is not per-function but rather
per-basic-block, however there's currently no other convenient
per-basic-block state to group it with.

llvm-svn: 102109

llvm-svn: 101977

SelectionDAG directory and into a new Analysis.cpp file.

llvm-svn: 101975