llvm-svn: 78624

bunch of FIXMEs for their is-gen.

llvm-svn: 78623

Enable Thumb2 instruction shrinking (32-bit to 16-bit) pass. Convert a bunch of thumb2 tests to FileCheck.

llvm-svn: 78622

Fixes PR4704 problems

Addresses Eli's patch feedback re: ugly cast code

Updates all postfix operators to remove ParenListExprs.  While this is awful,
no better solution (say, in the parser) is obvious to me.  Better solutions
welcome.

llvm-svn: 78621

Modified VNInfo. The "copy" member is now a union which holds the copy for a register interval, or the defining register for a stack interval. Access is via getCopy/setCopy and getReg/setReg.

llvm-svn: 78620

MERGE_VALUES nodes. Replacing the result values with the
operands in one MERGE_VALUES node may cause another
MERGE_VALUES node be CSE'd with the first one, and bring
its uses along, so that the first one isn't dead, as this
code expects. Fix this by iterating until the node is
really dead. This fixes PR4699.

llvm-svn: 78619

node after legalize, and remove the workaround code from the
ARM backend.

llvm-svn: 78615

llvm-svn: 78614

llvm-svn: 78613

llvm-svn: 78612

llvm-svn: 78611

llvm-svn: 78610

No functional change.

llvm-svn: 78608

llvm-svn: 78607

llvm-svn: 78606

llvm-svn: 78605

llvm-svn: 78604

PIC16 developers, please verify. 

llvm-svn: 78603

llvm-svn: 78602

llvm-svn: 78601

llvm-svn: 78600

Add a CastInfo struct that will be used for cast information when constructing cast expressions. Right now it only stores the cast kind, but in the future it might store conversion functions and constructors.

llvm-svn: 78599

llvm-svn: 78598

on target specific operands for testing class membership and converting to
MCInst operands.

llvm-svn: 78597

llvm-svn: 78596

llvm-svn: 78595

llvm-svn: 78594

llvm-svn: 78593

llvm-svn: 78592

llvm-svn: 78591

llvm-svn: 78590

llvm-svn: 78589

explicit parser match classes.

llvm-svn: 78588

llvm-svn: 78587

1. Passing something that isn't a string used to cause:
   "argument to annotate attribute was not a string literal"
  make it say "section attribute" instead.

2. Fix the location of the above message to point to the
   bad argument instead of the section token.

3. Implement rdar://4341926, by diagnosing invalid section
   specifiers in the frontend rather than letting them slip all
   the way to the assembler (a QoI win).

An example of #3 is that we used to produce something like this:

/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Expected comma after segment-name
/var/folders/n7/n7Yno9ihEm894640nJdSQU+++TI/-Tmp-//ccFPFGtT.s:2:Rest of line ignored. 1st junk character valued 46 (.).

Daniel improved clang to use llvm_report_error, so now we got:

$ clang t.c -c
fatal error: error in backend: Global variable 'x' has an invalid section specifier 'sadf': mach-o section specifier
      requires a segment and section separated by a comma.

with no loc info.  Now we get:

$ clang t.c -fsyntax-only
t.c:4:30: error: argument to 'section' attribute is not valid for this target: mach-o section specifier requires a segment
      and section separated by a comma
int x __attribute__((section("sadf")));
                             ^

which is nice :)

llvm-svn: 78586

llvm-svn: 78585

Start moving TargetLowering away from using full MVTs and towards SimpleValueType, which will simplify the privatization of IntegerType in the future.

llvm-svn: 78584

mac, use an explicit triple.

llvm-svn: 78583

llvm-svn: 78582

structure.

llvm-svn: 78581