On 19 October 2011 20:38, Nathan Froyd <nfr...@mozilla.com> wrote:
> On 10/19/2011 3:27 PM, Ramana Radhakrishnan wrote:
>>
>> Index: gcc/config/arm/arm.c
>> - live_regs_mask |= extra_mask<< (size / UNITS_PER_WORD);
>> + live_regs_mask |= extra_mask<< ((size + 3) / UNITS_PER_WORD);
>
> IIUC, wouldn't ((size + UNITS_PER_WORD - 1) / UNITS_PER_WORD) be clearer?
>
> -Nathan
>
Doh ! Yes , this is what I committed.
Ramana
2011-10-20 Ramana Radhakrishnan <ramana.radhakrish...@linaro.org>
PR target/50106
* config/arm/arm.c (thumb_unexpanded_epilogue): Handle return
reg size from 1-3.
Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c (revision 180239)
+++ gcc/config/arm/arm.c (working copy)
@@ -21652,7 +21652,8 @@
if (extra_pop > 0)
{
unsigned long extra_mask = (1 << extra_pop) - 1;
- live_regs_mask |= extra_mask << (size / UNITS_PER_WORD);
+ live_regs_mask |= extra_mask << ((size + UNITS_PER_WORD - 1)
+ / UNITS_PER_WORD);
}
/* The prolog may have pushed some high registers to use as
