+2012-09-05 Bin Cheng <bin.cheng@arm.com>
+
+ Backport from 2012-09-04 mainline r190919
+
+ PR target/45070
+ * config/arm/arm.c (thumb1_extra_regs_pushed): Handle return value of size
+ less than 4 bytes by using macro ARM_NUM_INTS.
+ (thumb1_unexpanded_epilogue): Use macro ARM_NUM_INTS.
+
2012-09-04 Richard Henderson <rth@redhat.com>
* alias.c (read_dependence): Return true for ALIAS_SET_MEMORY_BARRIER.
unsigned long l_mask = live_regs_mask & (for_prologue ? 0x40ff : 0xff);
/* Then count how many other high registers will need to be pushed. */
unsigned long high_regs_pushed = bit_count (live_regs_mask & 0x0f00);
- int n_free, reg_base;
+ int n_free, reg_base, size;
if (!for_prologue && frame_pointer_needed)
amount = offsets->locals_base - offsets->saved_regs;
n_free = 0;
if (!for_prologue)
{
- reg_base = arm_size_return_regs () / UNITS_PER_WORD;
+ size = arm_size_return_regs ();
+ reg_base = ARM_NUM_INTS (size);
live_regs_mask >>= reg_base;
}
if (extra_pop > 0)
{
unsigned long extra_mask = (1 << extra_pop) - 1;
- live_regs_mask |= extra_mask << ((size + UNITS_PER_WORD - 1)
- / UNITS_PER_WORD);
+ live_regs_mask |= extra_mask << ARM_NUM_INTS (size);
}
/* The prolog may have pushed some high registers to use as