------- Comment #6 from siarhei dot siamashka at gmail dot com 2010-07-28
08:37 -------
'arm_size_return_regs()' returns 2 when generating epilogue for 'next' function
here. And as a result, return value not registered in the mask, causing it to
be clobbered.
Would the following patch be the right fix?
Index: gcc/config/arm/arm.c
===================================================================
--- gcc/config/arm/arm.c (revision 162411)
+++ gcc/config/arm/arm.c (working copy)
@@ -13705,7 +13705,7 @@
&& !crtl->tail_call_emit)
{
unsigned long mask;
- mask = (1 << (arm_size_return_regs() / 4)) - 1;
+ mask = (1 << ((arm_size_return_regs() + 3) / 4)) - 1;
mask ^= 0xf;
mask &= ~saved_regs_mask;
reg = 0;
--
siarhei dot siamashka at gmail dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|c++ |target
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45070
