note on version:
the source suggests this bug even exists in trunk as of rev 151996
while compiling:
asm volatile (\
"mov.w %1,r0\n\t"\
"mulu.w %2,r0\n\t"\
<snip>
"adc.w #0,r2\n\t" \
:"=R13" (yyl), "=R02" (yyh) \
:"o"(xxa),"o"(xxb) \
:"a0"
);
i get:
unrecognized R constraint: R13
src/libc.c: In function myfunc:
src/libc.c:955: internal compiler error: in m32c_reg_class_from_constraint, at
config/m32c/m32c.c:699
http://gcc.gnu.org/onlinedocs/gcc/Machine-Constraints.html#Machine-Constraints
says:
R02
$r0 or $r2, or $r2r0 for 32 bit values.
R13
$r1 or $r3, or $r3r1 for 32 bit values.
while
http://gcc.gnu.org/viewcvs/trunk/gcc/config/m32c/m32c.h?view=markup
suggests
R02 R03 R23 are supported
but R13 is nowhere in the file
(R03 and R23 are there but not documented in the doc above?)
--
Summary: unrecognized R constraint: R13
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: eightdot at hotmail dot com
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: m32c-unknown-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41456
