[CUDA] Implement __ldg using intrinsics.
Summary:
Previously it was implemented as inline asm in the CUDA headers.
This change allows us to use the [addr+imm] addressing mode when
executing ld.global.nc instructions. This translates into a 1.3x
speedup on some benchmarks that call this instruction from within an
unrolled loop.
Reviewers: tra, rsmith
Subscribers: jhen, cfe-commits, jholewinski
Differential Revision: http://reviews.llvm.org/D19990
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@270150
91177308-0d34-0410-b5e6-
96231b3b80d8
projects / clang / commit