[newlib-cygwin] cdefs.h: remove intel_compiler support

[newlib-cygwin] cdefs.h: remove intel_compiler support

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=c382ecde557556646242cb37614d17219be5a318

commit c382ecde557556646242cb37614d17219be5a318
Author: Warner Losh <imp@FreeBSD.org>
Date:   Sat Oct 24 23:21:31 2020 +0000

    cdefs.h: remove intel_compiler support
    
    The  age  of   the  intel  compiler  support  is  so   old  as  to  be
    uninteresting. No recent recports of  intel compiler support have been
    received.  Remove  all the  special  case  workarounds for  the  Intel
    compiler. Should there be interest in supporting the compiler, contact
    me and I'll work with people to make it happen, though I suspect these
    instances are more likely to be in the way than to be helpful.
    
    Reviewed by: cem, emaste, vangyzen, dim
    Differential Revision: https://reviews.freebsd.org/D26817

Diff:
---
 newlib/libc/include/sys/cdefs.h | 34 ++++++++++++----------------------
 1 file changed, 12 insertions(+), 22 deletions(-)

diff --git a/newlib/libc/include/sys/cdefs.h b/newlib/libc/include/sys/cdefs.h
index da7290921..e6a31bd51 100644
--- a/newlib/libc/include/sys/cdefs.h
+++ b/newlib/libc/include/sys/cdefs.h
@@ -101,9 +101,9 @@
  * having a compiler-agnostic source tree.
  */
 
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
+#if defined(__GNUC__)
 
-#if __GNUC__ >= 3 || defined(__INTEL_COMPILER)
+#if __GNUC__ >= 3
 #define	__GNUCLIKE_ASM 3
 #define	__GNUCLIKE_MATH_BUILTIN_CONSTANTS
 #else
@@ -113,15 +113,9 @@
 #define	__GNUCLIKE___OFFSETOF 1
 #define	__GNUCLIKE___SECTION 1
 
-#ifndef __INTEL_COMPILER
 #define	__GNUCLIKE_CTOR_SECTION_HANDLING 1
-#endif
 
 #define	__GNUCLIKE_BUILTIN_CONSTANT_P 1
-#if defined(__INTEL_COMPILER) && defined(__cplusplus) && \
-   __INTEL_COMPILER < 800
-#undef __GNUCLIKE_BUILTIN_CONSTANT_P
-#endif
 
 #if (__GNUC_MINOR__ > 95 || __GNUC__ >= 3)
 #define	__GNUCLIKE_BUILTIN_VARARGS 1
@@ -140,10 +134,8 @@
 #define	__compiler_membar()	__asm __volatile(" " : : : "memory")
 #endif
 
-#ifndef __INTEL_COMPILER
 #define	__GNUCLIKE_BUILTIN_NEXT_ARG 1
 #define	__GNUCLIKE_MATH_BUILTIN_RELOPS
-#endif
 
 #define	__GNUCLIKE_BUILTIN_MEMCPY 1
 
@@ -159,7 +151,7 @@
 
 #define	__CC_SUPPORTS_DYNAMIC_ARRAY_INIT 1
 
-#endif /* __GNUC__ || __INTEL_COMPILER */
+#endif /* __GNUC__ */
 
 /*
  * The __CONCAT macro is used to concatenate parts of symbol names, e.g.
@@ -228,18 +220,18 @@
  * a feature that we cannot live without.
  */
 #define	__weak_symbol	__attribute__((__weak__))
-#if !__GNUC_PREREQ__(2, 5) && !defined(__INTEL_COMPILER)
+#if !__GNUC_PREREQ__(2, 5)
 #define	__dead2
 #define	__pure2
 #define	__unused
 #endif
-#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7 && !defined(__INTEL_COMPILER)
+#if __GNUC__ == 2 && __GNUC_MINOR__ >= 5 && __GNUC_MINOR__ < 7
 #define	__dead2		__attribute__((__noreturn__))
 #define	__pure2		__attribute__((__const__))
 #define	__unused
 /* XXX Find out what to do for __packed, __aligned and __section */
 #endif
-#if __GNUC_PREREQ__(2, 7) || defined(__INTEL_COMPILER)
+#if __GNUC_PREREQ__(2, 7)
 #define	__dead2		__attribute__((__noreturn__))
 #define	__pure2		__attribute__((__const__))
 #define	__unused	__attribute__((__unused__))
@@ -376,7 +368,7 @@
 #define	__pure
 #endif
 
-#if __GNUC_PREREQ__(3, 1) || (defined(__INTEL_COMPILER) && __INTEL_COMPILER >= 800)
+#if __GNUC_PREREQ__(3, 1)
 #define	__always_inline	__inline__ __attribute__((__always_inline__))
 #else
 #define	__always_inline
@@ -417,7 +409,7 @@
 #endif
 
 /* XXX: should use `#if __STDC_VERSION__ < 199901'. */
-#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
+#if !__GNUC_PREREQ__(2, 7)
 #define	__func__	NULL
 #endif
 
@@ -512,7 +504,7 @@
  * that are known to support the features properly (old versions of gcc-2
  * didn't permit keeping the keywords out of the application namespace).
  */
-#if !__GNUC_PREREQ__(2, 7) && !defined(__INTEL_COMPILER)
+#if !__GNUC_PREREQ__(2, 7)
 #define	__printflike(fmtarg, firstvararg)
 #define	__scanflike(fmtarg, firstvararg)
 #define	__format_arg(fmtarg)
@@ -532,18 +524,16 @@
 
 /* Compiler-dependent macros that rely on FreeBSD-specific extensions. */
 #if defined(__FreeBSD_cc_version) && __FreeBSD_cc_version >= 300001 && \
-    defined(__GNUC__) && !defined(__INTEL_COMPILER)
+    defined(__GNUC__)
 #define	__printf0like(fmtarg, firstvararg) \
 	    __attribute__((__format__ (__printf0__, fmtarg, firstvararg)))
 #else
 #define	__printf0like(fmtarg, firstvararg)
 #endif
 
-#if defined(__GNUC__) || defined(__INTEL_COMPILER)
-#ifndef __INTEL_COMPILER
+#if defined(__GNUC__)
 #define	__strong_reference(sym,aliassym)	\
 	extern __typeof (sym) aliassym __attribute__ ((__alias__ (#sym)))
-#endif
 #ifdef __ELF__
 #ifdef __STDC__
 #define	__weak_reference(sym,alias)	\
@@ -587,7 +577,7 @@
 	__asm__(".stabs \"_/**/sym\",1,0,0,0")
 #endif	/* __STDC__ */
 #endif	/* __ELF__ */
-#endif	/* __GNUC__ || __INTEL_COMPILER */
+#endif	/* __GNUC__ */
 
 #ifndef	__FBSDID
 #define	__FBSDID(s)	struct __hack