https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71627
Bug ID: 71627
Summary: AVR error: unable to find a register to spill in class
'POINTER_X_REGS'
Product: gcc
Version: 4.9.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: khuongnguyen00331 at gmail dot com
Target Milestone: ---
Created attachment 38751
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38751&action=edit
test memx-space
avr-gcc -mmcu=atmega128 -fdump-rtl-all -o avr.s -O1 avr.c
avr.c: In function ‘main’:
avr.c:28:1: error: unable to find a register to spill in class ‘POINTER_X_REGS’
}
^
avr.c:28:1: error: this is the insn:
(insn 108 107 109 2 (set (reg:QI 21 r21)
(subreg:QI (reg/f:PSI 61) 2)) avr.c:22 71 {movqi_insn}
(nil))
avr.c:28: confused by earlier errors, bailing out
