diff options
Diffstat (limited to 'libc/arch-arm')
| -rw-r--r-- | libc/arch-arm/cortex-a15/bionic/strcmp.S | 11 | ||||
| -rw-r--r-- | libc/arch-arm/cortex-a9/bionic/strcmp.S | 11 | ||||
| -rw-r--r-- | libc/arch-arm/krait/bionic/strcmp.S | 11 |
3 files changed, 0 insertions, 33 deletions
diff --git a/libc/arch-arm/cortex-a15/bionic/strcmp.S b/libc/arch-arm/cortex-a15/bionic/strcmp.S index 13b329f..422be86 100644 --- a/libc/arch-arm/cortex-a15/bionic/strcmp.S +++ b/libc/arch-arm/cortex-a15/bionic/strcmp.S @@ -145,19 +145,8 @@ ENTRY(strcmp) .macro magic_find_zero_bytes w1 /* Macro to find all-zero bytes in w1, result is in ip. */ -#if (defined (__ARM_FEATURE_DSP)) uadd8 ip, \w1, r6 sel ip, r7, r6 -#else /* not defined (__ARM_FEATURE_DSP) */ - /* __ARM_FEATURE_DSP is not defined for some Cortex-M processors. - Coincidently, these processors only have Thumb-2 mode, where we can use the - the (large) magic constant available directly as an immediate in instructions. - Note that we cannot use the magic constant in ARM mode, where we need - to create the constant in a register. */ - sub ip, \w1, #0x01010101 - bic ip, ip, \w1 - and ip, ip, #0x80808080 -#endif /* not defined (__ARM_FEATURE_DSP) */ .endm /* magic_find_zero_bytes */ .macro setup_return w1 w2 diff --git a/libc/arch-arm/cortex-a9/bionic/strcmp.S b/libc/arch-arm/cortex-a9/bionic/strcmp.S index 232df75..24a4157 100644 --- a/libc/arch-arm/cortex-a9/bionic/strcmp.S +++ b/libc/arch-arm/cortex-a9/bionic/strcmp.S @@ -145,19 +145,8 @@ ENTRY(strcmp) .macro magic_find_zero_bytes w1 /* Macro to find all-zero bytes in w1, result is in ip. */ -#if (defined (__ARM_FEATURE_DSP)) uadd8 ip, \w1, r6 sel ip, r7, r6 -#else /* not defined (__ARM_FEATURE_DSP) */ - /* __ARM_FEATURE_DSP is not defined for some Cortex-M processors. - Coincidently, these processors only have Thumb-2 mode, where we can use the - the (large) magic constant available directly as an immediate in instructions. - Note that we cannot use the magic constant in ARM mode, where we need - to create the constant in a register. */ - sub ip, \w1, #0x01010101 - bic ip, ip, \w1 - and ip, ip, #0x80808080 -#endif /* not defined (__ARM_FEATURE_DSP) */ .endm /* magic_find_zero_bytes */ .macro setup_return w1 w2 diff --git a/libc/arch-arm/krait/bionic/strcmp.S b/libc/arch-arm/krait/bionic/strcmp.S index d4cf3f4..e78bc9c 100644 --- a/libc/arch-arm/krait/bionic/strcmp.S +++ b/libc/arch-arm/krait/bionic/strcmp.S @@ -145,19 +145,8 @@ ENTRY(strcmp) .macro magic_find_zero_bytes w1 /* Macro to find all-zero bytes in w1, result is in ip. */ -#if (defined (__ARM_FEATURE_DSP)) uadd8 ip, \w1, r6 sel ip, r7, r6 -#else /* not defined (__ARM_FEATURE_DSP) */ - /* __ARM_FEATURE_DSP is not defined for some Cortex-M processors. - Coincidently, these processors only have Thumb-2 mode, where we can use the - the (large) magic constant available directly as an immediate in instructions. - Note that we cannot use the magic constant in ARM mode, where we need - to create the constant in a register. */ - sub ip, \w1, #0x01010101 - bic ip, ip, \w1 - and ip, ip, #0x80808080 -#endif /* not defined (__ARM_FEATURE_DSP) */ .endm /* magic_find_zero_bytes */ .macro setup_return w1 w2 |