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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-10-16 21:23:49 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-03-05 21:49:37 +0300 |
| commit | 95207db8166ab95c42a03fdc5e3abd212c9987dc (patch) | |
| tree | d4ead3df4a8847ab6bbcaf0f98c1f17488336e9d /include/linux/compiler-intel.h | |
| parent | b01fe98d34f3bed944a93bd8119fed80c856fad8 (diff) | |
| download | linux-95207db8166ab95c42a03fdc5e3abd212c9987dc.tar.xz | |
Remove Intel compiler support
include/linux/compiler-intel.h had no update in the past 3 years.
We often forget about the third C compiler to build the kernel.
For example, commit a0a12c3ed057 ("asm goto: eradicate CC_HAS_ASM_GOTO")
only mentioned GCC and Clang.
init/Kconfig defines CC_IS_GCC and CC_IS_CLANG but not CC_IS_ICC,
and nobody has reported any issue.
I guess the Intel Compiler support is broken, and nobody is caring
about it.
Harald Arnesen pointed out ICC (classic Intel C/C++ compiler) is
deprecated:
$ icc -v
icc: remark #10441: The Intel(R) C++ Compiler Classic (ICC) is
deprecated and will be removed from product release in the second half
of 2023. The Intel(R) oneAPI DPC++/C++ Compiler (ICX) is the recommended
compiler moving forward. Please transition to use this compiler. Use
'-diag-disable=10441' to disable this message.
icc version 2021.7.0 (gcc version 12.1.0 compatibility)
Arnd Bergmann provided a link to the article, "Intel C/C++ compilers
complete adoption of LLVM".
lib/zstd/common/compiler.h and lib/zstd/compress/zstd_fast.c were kept
untouched for better sync with https://github.com/facebook/zstd
Link: https://www.intel.com/content/www/us/en/developer/articles/technical/adoption-of-llvm-complete-icx.html
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/compiler-intel.h')
| -rw-r--r-- | include/linux/compiler-intel.h | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/include/linux/compiler-intel.h b/include/linux/compiler-intel.h deleted file mode 100644 index b17f3cd18334..000000000000 --- a/include/linux/compiler-intel.h +++ /dev/null @@ -1,34 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __LINUX_COMPILER_TYPES_H -#error "Please don't include <linux/compiler-intel.h> directly, include <linux/compiler.h> instead." -#endif - -#ifdef __ECC - -/* Compiler specific definitions for Intel ECC compiler */ - -#include <asm/intrinsics.h> - -/* Intel ECC compiler doesn't support gcc specific asm stmts. - * It uses intrinsics to do the equivalent things. - */ - -#define barrier() __memory_barrier() -#define barrier_data(ptr) barrier() - -#define RELOC_HIDE(ptr, off) \ - ({ unsigned long __ptr; \ - __ptr = (unsigned long) (ptr); \ - (typeof(ptr)) (__ptr + (off)); }) - -/* This should act as an optimization barrier on var. - * Given that this compiler does not have inline assembly, a compiler barrier - * is the best we can do. - */ -#define OPTIMIZER_HIDE_VAR(var) barrier() - -#endif - -/* icc has this, but it's called _bswap16 */ -#define __HAVE_BUILTIN_BSWAP16__ -#define __builtin_bswap16 _bswap16 |