f:
        .cfi_startproc
        nop
        .cfi_endproc

assembled (on ELF).

llvm-svn: 121434

t_addrmode_s# address modes is used for ASM printing, not for encoding.
<rdar://problem/8745375>

llvm-svn: 121417

llvm-svn: 121415

Use the new IsAligned fixup flag to improve fixup encodings for Thumb2 branches.  This is still not perfect,
but it gets many more of them correct than it did previously.

llvm-svn: 121414

Fix an issue in some Thumb fixups, where the effective PC address needs to be 4-byte aligned when calculating
the offset.  Add a new fixup flag to represent this, and use it for the one fixups that I have a testcase for needing
this.  It's quite likely that the other Thumb fixups will need this too, and to have their fixup encoding logic
adjusted accordingly.

llvm-svn: 121408

llvm-svn: 121404

the condition codes.  Where the ones that do have an 's' suffix and the ones
that don't don't have the suffix.  The trick is if MatchInstructionImpl() fails
we try again after adding a CCOut operand with the correct value and removing
the 's' if present.  Four simple test cases added for now, lots more to come.

llvm-svn: 121401

llvm-svn: 121399

t_brtarget to be more specific.

llvm-svn: 121398

Otherwise, a plain str/ldr should be used instead. Make sure we account for
that in prologue/epilogue code generation.
rdar://8745460

llvm-svn: 121391

llvm-svn: 121377

llvm-svn: 121376

llvm-svn: 121372

llvm-svn: 121371

llvm-svn: 121370

the output to the correct register. Fixes a hidden problem uncovered
by the last patch where we'd try to DAG combine our MVT::Other node
oddly.

llvm-svn: 121358

llvm-svn: 121355

llvm-svn: 121354

llvm-svn: 121351

llvm-svn: 121350

llvm-svn: 121349

referencing the stack pointer as they say they are.

llvm-svn: 121347

update the opcode when necessary as well as the source register.

llvm-svn: 121346

them.

llvm-svn: 121345

llvm-svn: 121343

llvm-svn: 121342

llvm-svn: 121340

llvm-svn: 121338

overwritten.

llvm-svn: 121337

particular, the immediate has 20-bits of value instead of 21. And bit 0 is '0'
always. Going through the BL fixup encoding was trashing the "bit 0 is '0'"
invariant.

Attempt to get the encoding at slightly more correct with this.

llvm-svn: 121336

popping up at O0 when it wasn't folded and the fast allocator would
complain.

llvm-svn: 121330

llvm-svn: 121329

llvm-svn: 121328

llvm-svn: 121320

llvm-svn: 121317

for more thorough cleanup.

llvm-svn: 121315

llvm-svn: 121314

llvm-svn: 121313

Added test to check bl __aeabi_read_tp gets emitted properly for ELF/ASM
as well as ELF/OBJ (including fixup)

Also added support for ELF::R_ARM_TLS_IE32

llvm-svn: 121312

llvm-svn: 121311