This is safe for x87 long doubles and ppc double doubles too.

llvm-svn: 167582

MCJIT unit test: add calls to ensure that instruction caches are properly invalidated before code execution.

llvm-svn: 167146

llvm-svn: 167145

llvm-svn: 167144

These tests were all failing since the old JIT doesn't work
for PowerPC (any more), and there are no plans to attempt to
fix it again (instead, work focuses on MCJIT).

llvm-svn: 167133

llvm-svn: 167111

with different sizes.

llvm-svn: 167018

treating it as if it were an IEEE floating-point type with 106-bit
mantissa.

This makes compile-time arithmetic on "long double" for PowerPC
in clang (in particular parsing of floating point constants)
work, and fixes all "long double" related failures in the test
suite.

llvm-svn: 166951

Fixed bug in SmallDenseMap where it wouldn't leave enough space for an empty bucket if the number of values was exactly equal to the small capacity.  This led to an infinite loop when finding a non-existent element

llvm-svn: 166492

When building with LTO, the internalize pass is hiding some global symbols
that are necessary for the JIT unittests. It seems like that may be a bug in
LTO to do that by default, but until that gets fixed, this change makes sure
that we export the necessary symbols for the tests to pass.

llvm-svn: 166220

llvm-svn: 166092

Fix a bug in the set(I,E)/reset(I,E) methods that I recently added.  The boundary condition for checking if I and E were in the same word were incorrect, and, beyond that, the mask computation was not using a wide enough constant.

llvm-svn: 166015

Add range-based set()/reset() to BitVector.  These allow fast setting/resetting of ranges of bits, particularly useful when dealing with very large BitVector's.

llvm-svn: 165984

llvm-svn: 165908

Add a basic unit test for ImmutableMap. Found by inspection.

llvm-svn: 165907

llvm-svn: 165792

llvm-svn: 165790

llvm-svn: 165781

llvm-svn: 165780

llvm-svn: 165777

Additionally, all such cases are handled with no dynamic check.

All `classof()` of the form

    class Foo {
      [...]
      static bool classof(const Bar *) { return true; }
      [...]
    }

where Foo is an ancestor of Bar are no longer necessary.
Don't write them!

Note: The exact test is `is_base_of<Foo, Bar>`, which is non-strict, so
that Foo is considered an ancestor of itself.

This leads to the following rule of thumb for LLVM-style RTTI:

    The argument type of `classof()` should be a strict ancestor.

For more information about implementing LLVM-style RTTI, see
docs/HowToSetUpLLVMStyleRTTI.rst

llvm-svn: 165765

llvm-svn: 165403

Some regression tests which are testing the old jit and are exercising functionality which is both known to be broken and not expected to be fixed in the old jit. To remove these from the regression test output, I've marked them XFAIL (for lit tests) and ifdef'd them out (unit tests). These modifications remove the last long-standing regression test failures from the buildbots (though updating the triple to reflect new ubuntu configuration has temporarily caused some new failures). Tested on x86-64 and ARM Linux.

Patch by David Tweed!

llvm-svn: 165390

Patch by Daniel Malea.

llvm-svn: 165246

llvm-svn: 165147

Don't call getAsUnsignedInteger directly, it fails to compile if uint64_t is not "unsigned long long".

while there add more test cases.

llvm-svn: 165140

llvm-svn: 165136

Patch committed on behalf of Kirill Uhanov

llvm-svn: 164831

Committed on behalf of Kirill Uhanov

llvm-svn: 164736

BB->end() returns a sentinel value that is not a legal insert point.

llvm-svn: 164699

APFloat::roundToIntegral: Special values don't keep the exponent value up to date, don't rely on it.

Add a couple of unit tests for special floats. Fixes 13929, found by MemorySanitizer.

llvm-svn: 164698

Fixed issue with Release build.

llvm-svn: 164654

llvm-svn: 164627

llvm-svn: 164614

Unit tests for IntegerDivision. Currently, just a basic sanity check to ensure that the code was generated properly. Future work would be finding some way to test the actual result that would be computed.

llvm-svn: 164582

This patch adds memory support functions which will later be used to implement section-specific protection handling in MCJIT.

llvm-svn: 164249

llvm-svn: 163979

llvm-svn: 163950

 - The current_pos function is supposed to return all the written bytes, not the
   current position of the underlying stream.
 - This caused tell() to be broken whenever the underlying stream had buffered
   content.

llvm-svn: 163948

Review by Chandler Carruth.

llvm-svn: 163944