diff options
Diffstat (limited to 'sysdeps/x86_64/wcsrchr.S')
| -rw-r--r-- | sysdeps/x86_64/wcsrchr.S | 51 |
1 files changed, 38 insertions, 13 deletions
diff --git a/sysdeps/x86_64/wcsrchr.S b/sysdeps/x86_64/wcsrchr.S index ea1e2e55da..8edfc468b8 100644 --- a/sysdeps/x86_64/wcsrchr.S +++ b/sysdeps/x86_64/wcsrchr.S @@ -19,9 +19,22 @@ #include <sysdep.h> +#ifdef __CHKP__ +# define RETURN \ + bndcu (%rax), %bnd0; \ + ret +#else +# define RETURN ret +#endif + + .text ENTRY (wcsrchr) +#ifdef __CHKP__ + bndcl (%rdi), %bnd0 + bndcu (%rdi), %bnd0 +#endif movd %rsi, %xmm1 mov %rdi, %rcx punpckldq %xmm1, %xmm1 @@ -92,6 +105,9 @@ L(unaligned_match): /* Loop start on aligned string. */ .p2align 4 L(loop): +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif movdqa (%rdi), %xmm0 pcmpeqd %xmm0, %xmm2 add $16, %rdi @@ -101,6 +117,9 @@ L(loop): or %rax, %rcx jnz L(matches) +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif movdqa (%rdi), %xmm3 pcmpeqd %xmm3, %xmm2 add $16, %rdi @@ -110,6 +129,9 @@ L(loop): or %rax, %rcx jnz L(matches) +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif movdqa (%rdi), %xmm4 pcmpeqd %xmm4, %xmm2 add $16, %rdi @@ -119,6 +141,9 @@ L(loop): or %rax, %rcx jnz L(matches) +#ifdef __CHKP__ + bndcu (%rdi), %bnd0 +#endif movdqa (%rdi), %xmm5 pcmpeqd %xmm5, %xmm2 add $16, %rdi @@ -145,7 +170,7 @@ L(return_value): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(match): @@ -175,14 +200,14 @@ L(find_zero): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(find_zero_in_first_wchar): test $1, %rax jz L(return_value) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(find_zero_in_second_wchar): @@ -192,7 +217,7 @@ L(find_zero_in_second_wchar): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(find_zero_in_third_wchar): @@ -204,12 +229,12 @@ L(find_zero_in_third_wchar): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(prolog_find_zero): add %rcx, %rdi - mov %rdx, %rcx + mov %rdx, %rcx L(prolog_find_zero_1): test $15, %cl jnz L(prolog_find_zero_in_first_wchar) @@ -228,14 +253,14 @@ L(prolog_find_zero_1): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(prolog_find_zero_in_first_wchar): test $1, %rax jz L(return_null) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(prolog_find_zero_in_second_wchar): @@ -245,7 +270,7 @@ L(prolog_find_zero_in_second_wchar): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(prolog_find_zero_in_third_wchar): @@ -257,22 +282,22 @@ L(prolog_find_zero_in_third_wchar): test $15 << 4, %al jnz L(match_second_wchar) lea -16(%rdi), %rax - ret + RETURN .p2align 4 L(match_second_wchar): lea -12(%rdi), %rax - ret + RETURN .p2align 4 L(match_third_wchar): lea -8(%rdi), %rax - ret + RETURN .p2align 4 L(match_fourth_wchar): lea -4(%rdi), %rax - ret + RETURN .p2align 4 L(return_null): |