Summary:
D27549 (partial fix for PR26619) emits a constant value in the debug
metadata for a floating-point static const that does not exceed 64
bits in size.  Whether or not a long double exceeds 64 bits in size
depends on the target.  Modify the test case so that it expects a
constant value for long double if and only if the long double is no
larger than 64 bits.

Reviewers: cfe-commits, probinson

Differential Revision: https://reviews.llvm.org/D27597

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289686 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
D27549 (partial fix for PR26619) emits a constant value in the debug
metadata for a floating-point static const that does not exceed 64
bits in size.  The regression test accompanying that fix assumes that
a long double exceeds 64 bits in size and hence does not get a
constant value in the debug metadata.  However, for some targets --
such as "--target=hexagon-unknown-elf" -- a long double does not
exceed 64 bits in size, and hence the test fails.

As a temporary fix, modify the regression test to no longer inspect
the debug metadata for a long double.

Reviewers: cfe-commits, probinson

Differential Revision: https://reviews.llvm.org/D27589

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289103 91177308-0d34-0410-b5e6-96231b3b80d8

Summary:
Partial fix for PR26619.

Prior to this change, a DIGlobalVariable corresponding to a static
const was marked with an expression corresponding to its constant
value only if it is of integral type.  With this change, we now do the
same if it is of __fp16, float, or double type (that is,
floating-point types that do not exceed 64 bits in size, and hence are
supported easily by the existing LLVM machinery for creating constant
expressions in debug info).

Reviewers: llvm-commits

Differential Revision: https://reviews.llvm.org/D27549

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@289094 91177308-0d34-0410-b5e6-96231b3b80d8