llvm-svn: 103538

the test suite after modifying this diagnostic.

llvm-svn: 103537

about the permitted scopes.  Specifically:
  1) Permit labels and gotos to appear after a prologue of variable initializations.
  2) Permit indirect gotos to jump out of scopes that don't require cleanup.
  3) Diagnose possible attempts to indirect-jump out of scopes that do require
     cleanup.
This requires a substantial reinvention of the algorithm for checking indirect
goto.  The current algorithm is Omega(M*N), with M = the number of unique
scopes being jumped from and N = the number of unique scopes being jumped to,
with an additional factor that is probably (worst-case) linear in the depth
of scopes.  Thus the entire thing is likely cubic given some truly bizarre
ill-formed code;  on well-formed code the additional factor collapses to
an amortized constant (when amortized over the entire function) and so
the algorithm is quadratic.  Even this requires every label to appear in
its own scope, which would be very unusual for indirect-goto code (and
extremely unlikely for well-formed code);  it is far more likely that
all labels will be in the same scope and so the algorithm becomes linear.
For such a marginal feature, I am fairly happy with this result.

(this is using JumpDiagnostic's definition of scope, where successive
variables in a block appear in their own scope)

llvm-svn: 103536

llvm-svn: 103535

Added a trivial function to modify the flags field of MCSymbolData class. The function takes the value and a mask, and clears the mask bits before applying the value.

llvm-svn: 103534

This is meaningful for blocks. This patch fixes bunch of test failures in gdb testsuite.

llvm-svn: 103533

be diced into atoms, and adjust getAtom() to take this into account.
 - This fixes relocations to symbols in fixed size literal sections, for
   example.

llvm-svn: 103532

llvm-svn: 103531

llvm-svn: 103530

llvm-svn: 103529

llvm-svn: 103528

offset instead of the fixup address as intended.

llvm-svn: 103527

llvm-svn: 103526

llvm-svn: 103525

[rand.dist.bern.bin].  The evaluation function for this binomial distribution is hopefully just a placeholder.  It is using the simplest and slowest method for computing the distribution and needs to be upgraded.

llvm-svn: 103524

llvm-svn: 103523

llvm-svn: 103522

This allows us to add accurate kill markers, something the scavenger likes.
Add some more tests from ARM that needed this.

llvm-svn: 103521

llvm-svn: 103520

create separate virtual registers for CopyFromReg values, so uses of
them don't necessarily kill the value.

llvm-svn: 103519

llvm-svn: 103517

llvm-svn: 103516

implicitly-instantiated class as ...", which seems to have broken bootstrap.

llvm-svn: 103515

 - Fixes PR7098.

llvm-svn: 103514

llvm-svn: 103513

llvm-svn: 103511

llvm-svn: 103510

llvm-svn: 103509

llvm-svn: 103508

llvm-svn: 103507

llvm-svn: 103501

closure after allocating all blocks.

Add a few more test cases for -regalloc=fast.

llvm-svn: 103500

It works in simple cases, but it isn't a general solution.

llvm-svn: 103499

llvm-svn: 103498

referenced unless we see one of them defined (or the key function
defined, if it as one) or if we need the vtable for something. Fixes
PR7114.

llvm-svn: 103497

to LLVM_LIBRARY_VISIBILITY and introduce LLVM_GLOBAL_VISIBILITY, which is
the opposite, for future use by dragonegg.

llvm-svn: 103495

llvm-svn: 103494

llvm-svn: 103493

and the others use the regular addPassesToEmitFile hook now, and
llc no longer needs a bunch of redundant code to handle the
whole-file case.

llvm-svn: 103492

llvm-svn: 103491