tree 11706e07237113d611b66b47264513b593992126
parent 227188ef462de2c295dd0f224ca53c287f19270f
author Jon Chesterfield <jonathanchesterfield@gmail.com> 1615827296 +0000
committer Copybara-Service <copybara-worker@google.com> 1616071544 -0700

[libomptarget][amdgcn] Drop use of inttypes.h, moving closer to freestanding

[libomptarget][amdgcn] Drop use of inttypes.h, moving closer to freestanding

The glibc headers are a periodic source of problems compiling the devicertl.
This patch resolves the following error run into while building llvm on a slightly
different linux system.
```
In file included from .../lib/clang/13.0.0/include/inttypes.h:21:
In file included from /usr/include/inttypes.h:25:
/usr/include/features.h:461:12: fatal error: 'sys/cdefs.h' file not found
#  include <sys/cdefs.h>
           ^~~~~~~~~~~~~
```
As a second patch, removing assert.h from shuffle will let amdgcn build as
-ffreestanding, at which point only the headers that clang itself provides are
used and interactions with the host glibc are eliminated. Doing the same for
nvptx is complicated by printf handling but also seems worthwhile.

Reviewed By: tianshilei1992

Differential Revision: https://reviews.llvm.org/D98565

GitOrigin-RevId: 156842937f5117176afae659d413f2891b81d4b9