All the sub-class bit vectors are computed when first creating the
register bank.

llvm-svn: 140905

llvm-svn: 140904

llvm-svn: 140903

and the alignment is 0 (i.e., it's defined globally in one file and declared in
another file) it could get an alignment which is larger than the ABI allows for
that type, resulting in aligned moves being used for unaligned loads.

For instance, in file A.c:

   struct S s;

In file B.c:
   struct {
     // something long
   };
   extern S s;

   void foo() {
     struct S p = s;
     // ...
   }

this copy is a 'memcpy' which is turned into a series of 'movaps' instructions
on X86. But this is wrong, because 'struct S' has alignment of 4, not 16.

llvm-svn: 140902

llvm-svn: 140901

llvm-svn: 140900

llvm-svn: 140899

This uses less memory and it reduces the complexity of sub-class
operations:

- hasSubClassEq() and friends become O(1) instead of O(N).

- getCommonSubClass() becomes O(N) instead of O(N^2).

In the future, TableGen will infer register classes.  This makes it
cheap to add them.

llvm-svn: 140898

This one can also print 32-bit groups.

llvm-svn: 140897

It will soon need the context.

llvm-svn: 140896

Use these lists instead of computing them on the fly in
RegisterInfoEmitter.

llvm-svn: 140895

llvm-svn: 140894

llvm-svn: 140893

llvm-svn: 140892

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140891

Add a keyword argument 'endstr' to TestBase.expect() method to assert that the output
will end with 'endstr'.

Add TestBase.switch_to_thread_with_stop_reason(stop_reason) to select the thread with
the stop reason = 'stop_reason' as the current thread.

o TestWatchLocation.py:

Modified to switch to the stopped thread with stop reason = watchpoint and to evaluate
an expression with expected output for stronger assertion.

llvm-svn: 140890

llvm-svn: 140889

statement to Clang.

llvm-svn: 140888

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140887

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140886

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140885

Test of indexing lists of lists of lists works.  This also exercises
some operators.

llvm-svn: 140884

Add a TableGen test to check if indexing lists of lists works.

llvm-svn: 140883

Implement VarListElementInit:: resolveListElementReference so that
lists of lists can be indexed.

llvm-svn: 140882

Also reduce the size of the lldb_private::Symbol objects by removing the
lldb_private::Function pointer that was in each symbol. Running Instruments
has shown that when debugging large applications with DWARF in .o files that
lldb_private::Symbol objects are one of the highest users of memory. No one
was using the Symbol::GetFunction() call anyway.

llvm-svn: 140881

a reference type, since inner reference is much like an inner pointer.
// rdar://10139365

llvm-svn: 140880

llvm-svn: 140879

Patch by Reed Kotler at Mips Technologies.

llvm-svn: 140878

This time the warning found an actual bug, we don't want to handle
force_align_arg_pointer differently than __force_align_arg_pointer__.

llvm-svn: 140877

llvm-svn: 140876

llvm-svn: 140875

llvm-svn: 140874

llvm-svn: 140873

llvm-svn: 140872

llvm-svn: 140871

llvm-svn: 140870

InstCombine was incorrectly considering the conversion of the constant
zero to be unsafe.

We want to transform:
define float @bar(float %x) nounwind readnone optsize ssp {
  %conv = fpext float %x to double
  %cmp = fcmp olt double %conv, 0.000000e+00
  %conv1 = zext i1 %cmp to i32
  %conv2 = sitofp i32 %conv1 to float
  ret float %conv2
}

Into:
define float @bar(float %x) nounwind readnone optsize ssp {
  %cmp = fcmp olt float %x, 0.000000e+00   ; <---- This
  %conv1 = zext i1 %cmp to i32
  %conv2 = sitofp i32 %conv1 to float
  ret float %conv2
}


rdar://10215914

llvm-svn: 140869

llvm-svn: 140868

pointer to this struct must go through the none ivar writer barrier.

llvm-svn: 140867

llvm-svn: 140866