Add support for BMI.

2010-11-10 Quentin Neill <quentin.neill.gnu@gmail.com>

gcc/
	* config.gcc (i[34567]86-*-*): Include bmiintrin.h.
	(x86_64-*-*): Likewise.
	* config/i386/cpuid.h: Define BMI bit.
	* config/i386/driver-i386.c (host_detect_local_cpu): Define
	and set has_bmi.
	* config/i386/i386-c.c (ix86_target_macros_internal): Check
	isa_flag for BMI.
	* config/i386/i386.c (OPTION_MASK_ISA_BMI_SET): New.
	(OPTION_MASK_ISA_BMI_UNSET): New.
	(ix86_handle_option): Handle -mbmi.
	(isa_opts): Add -mbmi.
	(enum pta_flags): Add PTA_BMI.
	(ix86_option_override_internal): Add BMI support.
	(ix86_valid_target_attribute_inner_p): Handle -mbmi.
	(IX86_BUILTIN_BEXTR32): New for BMI intrinsic.
	(IX86_BUILTIN_BEXTR64): Likewise.
	(IX86_BUILTIN_CTZS): Likewise.
	(bdesc_args): Add BMI intrinsics.
	(ix86_expand_args_builtin): Add BMI specific cases.
	* config/i386/i386.h (TARGET_BMI): New for BMI.
	(CTZ_DEFINED_VALUE_AT_ZERO): Likewise.
	(CLZ_DEFINED_VALUE_AT_ZERO): Likewise.
	* config/i386/i386.md (UNSPEC_BEXTR): New for BMI.
	(UNSPEC_TZCNT): Likewise.
	(ctz<mode>2): Add tzcnt, and handle 16 bit operands.
	(bmi_andn_<mode>): New for BMI.
	(bmi_bextr_<mode>): Likewise.
	(bmi_blsi_<mode>): Likewise.
	(bmi_blsmsk_<mode>): Likewise.
	(bmi_blsr_<mode>): Likewise.
	* config/i386/i386.opt: Add -mbmi.
	* config/i386/x86intrin.h: Add BMI check and bmiintrin.h.
	* config/i386/bmiintrin.h (__lzcnt_u16): New.
	(__tzcnt_u16): Likewise.
	(__andn_u32): Likewise.
	(__bextr_u32): Likewise.
	(__blsi_u32): Likewise.
	(__blsmsk_u32): Likewise.
	(__blsr_u32): Likewise.
	(__lzcnt_u32): Likewise.
	(__tzcnt_u32): Likewise.
	(__andn_u64): Likewise.
	(__bextr_u64): Likewise.
	(__blsi_u64): Likewise.
	(__blsmsk_u64): Likewise.
	(__blsr_u64): Likewise.
	(__lzcnt_u64): Likewise.
	(__tzcnt_u64): Likewise.
	* doc/invoke.texi: Document -mbmi and -mno-bmi.
	* doc/extend.texi: Document BMI built-in functions.

gcc/testsuite/
	* g++.dg/other/i386-2.C: Add -mbmi.
	* g++.dg/other/i386-3.C: Likewise.
	* gcc.target/i386/funcspec-5.c: Add bmi and no-bmi targets.
	* gcc.target/i386/funcspec-6.c: Likewise.
	* gcc.target/i386/sse-12.c: Add -mbmi.
	* gcc.target/i386/bmi-1.c: New file.
	* gcc.target/i386/bmi-2.c: Likewise.
	* gcc.target/i386/bmi-3.c: Likewise.
	* gcc.target/i386/bmi-4.c: Likewise.
	* gcc.target/i386/bmi-5.c: Likewise.
	* gcc.target/i386/bmi-6.c: Likewise.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@166561 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 7 insertions, 0 deletions

diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 998214b0bda..6319a14b78a 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -397,6 +397,7 @@ const char *host_detect_local_cpu (int argc, const char **argv)
   unsigned int has_popcnt = 0, has_aes = 0, has_avx = 0;
   unsigned int has_pclmul = 0, has_abm = 0, has_lwp = 0;
   unsigned int has_fma4 = 0, has_xop = 0;
+  unsigned int has_bmi = 0;
 
   bool arch;
 
@@ -467,6 +468,10 @@ const char *host_detect_local_cpu (int argc, const char **argv)
       has_longmode = edx & bit_LM;
       has_3dnowp = edx & bit_3DNOWP;
       has_3dnow = edx & bit_3DNOW;
+
+      __cpuid (0x7, eax, ebx, ecx, edx);
+
+      has_bmi = ebx & bit_BMI;
     }
 
   if (!arch)
@@ -686,6 +691,8 @@ const char *host_detect_local_cpu (int argc, const char **argv)
 	options = concat (options, " -mfma4", NULL);
       if (has_xop)
 	options = concat (options, " -mxop", NULL);
+      if (has_bmi)
+	options = concat (options, " -mbmi", NULL);
 
       if (has_avx)
 	options = concat (options, " -mavx", NULL);