https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97248
Bug ID: 97248
Summary: [mips] unrecognizable insn when left shifting uint64
vector by scalar with MSA
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: e...@coeus-group.com
Target Milestone: ---
On mips64el with -mmsa, attempting to left shift a vector of unsigned 64-bit
integers by a scalar results in an ICE. The same code works without -mmsa.
Test case:
typedef struct {
long unsigned int c __attribute__((__vector_size__(16)));
} d;
int i() {
int e;
d f, g;
f.c = g.c << e;
}
`mips64el-linux-gnuabi64-gcc-10 -mmsa -c -o foo.o foo.c`:
foo.c: In function ‘i’:
foo.c:8:1: error: unrecognizable insn:
8 | }
| ^
(insn 9 8 10 2 (set (reg:DI 198)
(subreg:DI (mem/c:SI (reg/f:DI 189 virtual-stack-vars) [1 e+0 S4
A32]) 0)) "foo.c":7:13 -1
(nil))
during RTL pass: vregs
foo.c:8:1: internal compiler error: in extract_insn, at recog.c:2294
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.
