| Message ID | 1402481995-12749-5-git-send-email-charles.baylis@linaro.org |
|---|---|
| State | New |
| Headers | show |
On 11/06/14 11:19, Charles Baylis wrote: > 2014-05-22 Charles Baylis <charles.baylis@linaro.org> > > * config/arm/bpabi.S (__aeabi_ldivmod): Optimise stack manipulation. OK. R. > --- > libgcc/config/arm/bpabi.S | 14 +++----------- > 1 file changed, 3 insertions(+), 11 deletions(-) > > diff --git a/libgcc/config/arm/bpabi.S b/libgcc/config/arm/bpabi.S > index 927e37f..3f9ece5 100644 > --- a/libgcc/config/arm/bpabi.S > +++ b/libgcc/config/arm/bpabi.S > @@ -174,18 +174,10 @@ ARM_FUNC_START aeabi_ldivmod > cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod) > test_div_by_zero signed > > - sub sp, sp, #8 > -#if defined(__thumb2__) > - mov ip, sp > - push {ip, lr} > -#else > - do_push {sp, lr} > -#endif > -98: cfi_push 98b - __aeabi_ldivmod, 0xe, -0xc, 0x10 > + push_for_divide __aeabi_ldivmod > + /* arguments in (r0:r1), (r2:r3) and *sp */ > bl SYM(__gnu_ldivmod_helper) __PLT__ > - ldr lr, [sp, #4] > - add sp, sp, #8 > - do_pop {r2, r3} > + pop_for_divide > RET > cfi_end LSYM(Lend_aeabi_ldivmod) > >
diff --git a/libgcc/config/arm/bpabi.S b/libgcc/config/arm/bpabi.S index 927e37f..3f9ece5 100644 --- a/libgcc/config/arm/bpabi.S +++ b/libgcc/config/arm/bpabi.S @@ -174,18 +174,10 @@ ARM_FUNC_START aeabi_ldivmod cfi_start __aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod) test_div_by_zero signed - sub sp, sp, #8 -#if defined(__thumb2__) - mov ip, sp - push {ip, lr} -#else - do_push {sp, lr} -#endif -98: cfi_push 98b - __aeabi_ldivmod, 0xe, -0xc, 0x10 + push_for_divide __aeabi_ldivmod + /* arguments in (r0:r1), (r2:r3) and *sp */ bl SYM(__gnu_ldivmod_helper) __PLT__ - ldr lr, [sp, #4] - add sp, sp, #8 - do_pop {r2, r3} + pop_for_divide RET cfi_end LSYM(Lend_aeabi_ldivmod)