diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/strrchr.S')
| -rw-r--r-- | sysdeps/x86_64/multiarch/strrchr.S | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/strrchr.S b/sysdeps/x86_64/multiarch/strrchr.S index 3f92a41ef9..1fed105bf0 100644 --- a/sysdeps/x86_64/multiarch/strrchr.S +++ b/sysdeps/x86_64/multiarch/strrchr.S @@ -97,6 +97,10 @@ __strrchr_sse42: CALL_MCOUNT testb %sil, %sil je __strend_sse4 +# ifdef __CHKP__ + bndcl (%rdi), %bnd0 + bndcu (%rdi), %bnd0 +# endif xor %eax,%eax /* RAX has the last occurrence of s. */ movd %esi, %xmm1 punpcklbw %xmm1, %xmm1 @@ -135,6 +139,9 @@ L(unaligned_no_byte): contain the NULL terminator. */ jg L(exit) addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif /* Loop start on aligned string. */ .p2align 4 @@ -142,6 +149,9 @@ L(loop): pcmpistri $0x4a, (%r8), %xmm1 jbe L(match_or_eos) addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif jmp L(loop) .p2align 4 L(match_or_eos): @@ -149,11 +159,17 @@ L(match_or_eos): L(match_no_eos): leaq (%r8,%rcx), %rax addq $16, %r8 +# ifdef __CHKP__ + bndcu (%r8), %bnd0 +# endif jmp L(loop) .p2align 4 L(had_eos): jnc L(exit) leaq (%r8,%rcx), %rax +# ifdef __CHKP__ + bndcu (%rax), %bnd0 +# endif .p2align 4 L(exit): ret |