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gcc/ChangeLog
2015-12-06 Victoria Stepanyan <victoria.stepanyan@amd.com>
* 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_<mode>): 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 <victoria.stepanyan@amd.com>
* 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
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