From 62e56a0d652ce83ae3d220cc4a01de46674188f1 Mon Sep 17 00:00:00 2001 From: Victoria Stepanyan Date: Sun, 6 Dec 2015 17:02:48 +0000 Subject: support for AMD clzero isa. gcc/ChangeLog 2015-12-06 Victoria Stepanyan * common/config/i386/i386-common.c (OPTION_MASK_ISA_CLZERO_SET): New. (ix86_handle_option): Handle clzero. * config.gcc (i[34567]86-*-*): Add clzerointrin.h, (x86_64-*-*): Likewise. * config/i386/clzerointrin.h: New header. * config/i386/cpuid.h (bit_CLZERO): Define. * config/i386/driver-i386.c (host_detect_local_cpu): Detect CLZERO support. * config/i386/i386.opt (clzero): New. * config/i386/i386-c.c: Define __CLZERO__ if needed. * config/i386/i386.c (ix86_target_string): Define -mclzero option. (PTA_CLZERO): New. (ix86_option_override_internal): Handle new option. (processor_alias_table): Added PTA_CLZERO. (ix86_valid_target_attribute_inner_p): Add OPT_mclzero. (ix86_builtins): Add IX86_BUILTIN_CLZERO, IX86_BUILTIN_CLZERO. (ix86_expand_builtin): Handle IX86_BUILTIN_CLZERO and IX86_BUILTIN_CLZERO built-ins. * config/i386/i386.h (TARGET_CLZERO): New. * config/i386/i386.md (unspecv): Add UNSPEC_CLZERO. (clzero): New pattern. (clzero_): New pattern. * config/i386/x86intrin.h: Include clzerointrin.h. * doc/extend.texi: Document clzero builtins. * doc/invoke.texi: Document -mclzero option. gcc/testsuite/ChangeLog 2015-12-06 Victoria Stepanyan * gcc.target/i386/clzero.c: New. * gcc.target/i386/sse-12.c: Add -mclzero. * gcc.target/i386/sse-13.c: Ditto. * gcc.target/i386/sse-14.c: Ditto. * gcc.target/i386/sse-22.c: Ditto. * gcc.target/i386/sse-23.c: Ditto. * g++.dg/other/i386-2.C: Ditto. * g++.dg/other/i386-3.C: Ditto. From-SVN: r231340 --- gcc/doc/extend.texi | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'gcc/doc/extend.texi') diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 650aa94..883d9b3 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -18337,6 +18337,12 @@ void __builtin_ia32_monitorx (void *, unsigned int, unsigned int) void __builtin_ia32_mwaitx (unsigned int, unsigned int, unsigned int) @end smallexample +The following built-in functions are available when @option{-mclzero} is used. +All of them generate the machine instruction that is part of the name. +@smallexample +void __builtin_i32_clzero (void *) +@end smallexample + @node x86 transactional memory intrinsics @subsection x86 Transactional Memory Intrinsics -- cgit v1.1