Tulio added support for two new AT_HWCAP2 bits to GLIBC which have been recently added to the kernel:
https://www.sourceware.org/ml/libc-alpha/2017-06/msg00069.html This patch adds support for them to the __builtin_cpu_supports() builtin function so we can test for them. Tested on powerpc64le-linux with no regressions. Is this ok for trunk? Peter gcc/ * config/rs6000/ppc-auxv.h (PPC_FEATURE2_DARN): New define. (PPC_FEATURE2_SCV): Likewise. * config/rs6000/rs6000.c (cpu_supports_info): Use them. gcc/testsuite/ * gcc.target/powerpc/cpu-builtin-1.c (darn, scv): Add tests. Index: gcc/config/rs6000/ppc-auxv.h =================================================================== --- gcc/config/rs6000/ppc-auxv.h (revision 249611) +++ gcc/config/rs6000/ppc-auxv.h (working copy) @@ -89,6 +89,8 @@ #define PPC_FEATURE2_HTM_NOSC 0x01000000 #define PPC_FEATURE2_ARCH_3_00 0x00800000 #define PPC_FEATURE2_HAS_IEEE128 0x00400000 +#define PPC_FEATURE2_DARN 0x00200000 +#define PPC_FEATURE2_SCV 0x00100000 /* Thread Control Block (TCB) offsets of the AT_PLATFORM, AT_HWCAP and Index: gcc/config/rs6000/rs6000.c =================================================================== --- gcc/config/rs6000/rs6000.c (revision 249611) +++ gcc/config/rs6000/rs6000.c (working copy) @@ -379,7 +379,9 @@ static const struct { "tar", PPC_FEATURE2_HAS_TAR, 1 }, { "vcrypto", PPC_FEATURE2_HAS_VEC_CRYPTO, 1 }, { "arch_3_00", PPC_FEATURE2_ARCH_3_00, 1 }, - { "ieee128", PPC_FEATURE2_HAS_IEEE128, 1 } + { "ieee128", PPC_FEATURE2_HAS_IEEE128, 1 }, + { "darn", PPC_FEATURE2_DARN, 1 }, + { "scv", PPC_FEATURE2_SCV, 1 } }; /* On PowerPC, we have a limited number of target clones that we care about Index: gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c =================================================================== --- gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c (revision 249611) +++ gcc/testsuite/gcc.target/powerpc/cpu-builtin-1.c (working copy) @@ -62,4 +62,6 @@ use_cpu_supports_builtins (unsigned int p[35] = __builtin_cpu_supports ("ucache"); p[36] = __builtin_cpu_supports ("vcrypto"); p[37] = __builtin_cpu_supports ("vsx"); + p[38] = __builtin_cpu_supports ("darn"); + p[39] = __builtin_cpu_supports ("scv"); }
