https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100762
Bug ID: 100762
Summary: [mips+msa] ICE when comparing 64 bit vectors
Product: gcc
Version: 10.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: e...@coeus-group.com
Target Milestone: ---
In MIPS with MSA enabled on GCC 10.2.1, any comparison operation on 64-bit
vectors results in an ICE.
Test case:
typedef int i32x2 __attribute__((__vector_size__(8)));
i32x2 cmp(i32x2 a, i32x2 b) {
return a >= b;
}
$ mips64el-linux-gnuabi64-gcc-10 -march=loongson3a -mmsa -c -o test.o test.c
mips64el-linux-gnuabi64-gcc-10 -march=loongson3a -mmsa -c -o test.o test2.c
during RTL pass: expand
test.c: In function 'cmp':
test.c:4:12: internal compiler error: in mips_expand_vector_init, at
config/mips/mips.c:22076
4 | return a >= b;
| ~~^~~~
0x7f420202dd09 __libc_start_main
../csu/libc-start.c:308
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-10/README.Bugs> for instructions.
This is with GCC 10.2.1-6 from Debian:
$ mips64el-linux-gnuabi64-gcc-10 --version
mips64el-linux-gnuabi64-gcc-10 (Debian 10.2.1-6) 10.2.1 20210110
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