[Issue]: build with libc++ fails in std::vector<int8_t[16]> alpha_1

[AngryLoki]

Problem Description

Hi,

With LLVM libc++, compilation of hipBLASLt fails at

hipBLASLt/library/src/amd_detail/rocblaslt/src/rocblaslt_mat.cpp

Line 396 in 79d1467

std::vector<int8_t[16]> alpha_1(matmul_descr.size());

with this error:

/usr/include/c++/v1/vector:1122:5: note: in instantiation of member function 'std::vector<char[16]>::__construct_at_end' requested here
 1122 |     __construct_at_end(__n);
      |     ^
rocblaslt_mat.cpp:396:24: note: in instantiation of member function 'std::vector<char[16]>::vector' requested here
  396 |         std::vector<int8_t[16]>         alpha_1(matmul_descr.size()); 

The issue was reported to llvm/llvm-project#98734, and according to discussion, std::vector of C arrays is not a part of c++17 (used currently in hipBLASLt).

See linked pull request with a fix.

Operating System

Gentoo

CPU

GPU

AMD Instinct MI250X

Other

No response

ROCm Version

ROCm 6.2.3

ROCm Component

No response

Steps to Reproduce

No response

(Optional for Linux users) Output of /opt/rocm/bin/rocminfo --support

No response

Additional Information

No response