https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116324
Bug ID: 116324
Summary: [lra] error: inconsistent operand constraints in an
'asm'
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: gjl at gcc dot gnu.org
Target Milestone: ---
Created attachment 58896
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58896&action=edit
lra-bug2.c: GNU-C99 test case
This error occurs when we try to build avr libgcc with -mlra:
$ avr-gcc lra-bug2.c -S -mlra -Os
or
$ avr-gcc lra-bug2.c -S -mlra
In function '__f7_clr',
inlined from '__f7_madd_msub' at lra-bug2.c:77:3:
lra-bug2.c:42:3: error: inconsistent operand constraints in an 'asm'
42 | __asm ("%~call %x[f]"
| ^~~~~
The input constraint is like "z" (cc) where cc is a void* that perfectly fits
into 16-bit regster Z (reg:HI 30) which has register constraint "z".
Target: avr
Configured with: ../../source/gcc-master/configure --target=avr --disable-nls
--with-dwarf2 --with-gnu-as --with-gnu-ld --disable-shared
--with-long-double=64 --enable-languages=c,c++
