[all-commits] [llvm/llvm-project] 8ea72b: [clang][AArch64][SVE] Avoid going through memory f...

[Joe Ellis via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8ea72b388734ce660f861e0dfbe53d203e94876a
      https://github.com/llvm/llvm-project/commit/8ea72b388734ce660f861e0dfbe53d203e94876a
  Author: Joe Ellis <joe.ellis at arm.com>
  Date:   2021-01-11 (Mon, 11 Jan 2021)

  Changed paths:
    M clang/lib/CodeGen/CGCall.cpp
    M clang/test/CodeGen/aarch64-sve-acle-__ARM_FEATURE_SVE_VECTOR_OPERATORS.cpp
    M clang/test/CodeGen/attr-arm-sve-vector-bits-call.c
    M clang/test/CodeGen/attr-arm-sve-vector-bits-cast.c
    M clang/test/CodeGen/attr-arm-sve-vector-bits-codegen.c

  Log Message:
  -----------
  [clang][AArch64][SVE] Avoid going through memory for coerced VLST return values

VLST return values are coerced to VLATs in the function epilog for
consistency with the VLAT ABI. Previously, this coercion was done
through memory. It is preferable to use the
llvm.experimental.vector.insert intrinsic to avoid going through memory
here.

Reviewed By: c-rhodes

Differential Revision: https://reviews.llvm.org/D94290