Juergen Ributzka 2cdca434db [ARM64] Fix the cost model for cheap large constants. ...

Originally the cost model would give up for large constants and just return the
maximum cost. This is not what we want for constant hoisting, because some of
these constants are large in bitwidth, but are still cheap to materialize.

This commit fixes the cost model to either return TCC_Free if the cost cannot be
determined, or accurately calculate the cost even for large constants
(bitwidth > 128).

This fixes <rdar://problem/16591573>.

llvm-svn: 206100

2014-04-12 02:36:28 +00:00

..

ARM64

[ARM64] Fix the cost model for cheap large constants.

2014-04-12 02:36:28 +00:00

X86

Update the test to use FileCheck.

2014-04-04 19:57:01 +00:00