diff options
Diffstat (limited to 'sysdeps/i386/i686/multiarch/strcmp-sse4.S')
| -rw-r--r-- | sysdeps/i386/i686/multiarch/strcmp-sse4.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/sysdeps/i386/i686/multiarch/strcmp-sse4.S b/sysdeps/i386/i686/multiarch/strcmp-sse4.S index 977647203f..4b47851ed4 100644 --- a/sysdeps/i386/i686/multiarch/strcmp-sse4.S +++ b/sysdeps/i386/i686/multiarch/strcmp-sse4.S @@ -176,6 +176,7 @@ L(first4bytes): PUSH (%ebx) PUSH (%edi) PUSH (%esi) + cfi_remember_state mov %edx, %edi mov %eax, %esi xorl %eax, %eax @@ -241,6 +242,7 @@ L(ret): #endif ret + cfi_restore_state #ifdef USE_AS_STRNCMP L(more16byteseq): POP (%esi) @@ -253,6 +255,10 @@ L(eq): POP (%ebp) #endif ret + +#ifdef USE_AS_STRNCMP + CFI_PUSH (%ebp) +#endif L(neq): mov $1, %eax ja L(neq_bigger) @@ -263,6 +269,9 @@ L(neq_bigger): #endif ret .p2align 4 +#ifdef USE_AS_STRNCMP + CFI_PUSH (%ebp) +#endif L(less16bytes): add $0xfefefeff, %ecx jnc L(less4bytes) @@ -370,8 +379,13 @@ L(more4bytes): movzbl 7(%eax), %ecx cmpb %cl, 7(%edx) jne L(neq) +#if 0 + // XXX bug in original code. It had a fallthru without any code cmpl $0, %ecx je L(eq) +#else + jmp L(eq) +#endif END (STRCMP) |