bpabi.S (__aeabi_uldivmod, [...]): Add comment describing register usage on…

bpabi.S (__aeabi_uldivmod, [...]): Add comment describing register usage on function entry and exit.

2014-06-18  Charles Baylis  <charles.baylis@linaro.org>

	* config/arm/bpabi.S (__aeabi_uldivmod, __aeabi_ldivmod): Add comment
	describing register usage on function entry and exit.

From-SVN: r211790

gcc/ChangeLog

 2014-06-18  Charles Baylis  <charles.baylis@linaro.org>
 
+	* config/arm/bpabi.S (__aeabi_uldivmod, __aeabi_ldivmod): Add comment
+	describing register usage on function entry and exit.
+
+2014-06-18  Charles Baylis  <charles.baylis@linaro.org>
+
 	* config/arm/bpabi.S (__aeabi_uldivmod): Fix whitespace.
 	(__aeabi_ldivmod): Fix whitespace.
 

libgcc/config/arm/bpabi.S

@@ -122,6 +122,14 @@ ARM_FUNC_START aeabi_ulcmp
 
 #ifdef L_aeabi_ldivmod
 
+/* Perform 64 bit signed division.
+   Inputs:
+	r0:r1	numerator
+	r2:r3	denominator
+   Outputs:
+	r0:r1	quotient
+	r2:r3	remainder
+ */
 ARM_FUNC_START aeabi_ldivmod
 	cfi_start	__aeabi_ldivmod, LSYM(Lend_aeabi_ldivmod)
 	test_div_by_zero	signed
@@ -145,6 +153,14 @@ ARM_FUNC_START aeabi_ldivmod
 
 #ifdef L_aeabi_uldivmod
 
+/* Perform 64 bit signed division.
+   Inputs:
+	r0:r1	numerator
+	r2:r3	denominator
+   Outputs:
+	r0:r1	quotient
+	r2:r3	remainder
+ */
 ARM_FUNC_START aeabi_uldivmod
 	cfi_start	__aeabi_uldivmod, LSYM(Lend_aeabi_uldivmod)
 	test_div_by_zero	unsigned