https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71889
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Summary|[5.4 Regression] [MIPS] |[MIPS] python: "insn does |python: "insn does not |not satisfy its |satisfy its constraints" |constraints" --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- mipsel-softfloat-linux-gnu-gcc -pthread -fPIC -fno-strict-aliasing -O2 -fomit-frame-pointer -pipe -mmt -march=1004kc -fwrapv -c _codecs_cn.preprocessed.c /var/tmp/portage/dev-lang/python-2.7.11-r2/work/Python-2.7.11/Modules/cjkcodecs/_codecs_cn.c: In function ‘gb18030_encode’: /var/tmp/portage/dev-lang/python-2.7.11-r2/work/Python-2.7.11/Modules/cjkcodecs/_codecs_cn.c:243:1: error: insn does not satisfy its constraints: (insn 588 291 583 32 (parallel [ (set (reg:SI 25 $25 [494]) (truncate:SI (lshiftrt:DI (mult:DI (zero_extend:DI (reg:SI 16 $16 [orig:488 tc ] [488])) (zero_extend:DI (reg:SI 8 $8 [544]))) (const_int 32 [0x20])))) (clobber (scratch:SI)) ]) /var/tmp/portage/dev-lang/python-2.7.11-r2/work/Python-2.7.11/Modules/cjkcodecs/_codecs_cn.c:220 68 {umulsi3_highpart_internal} (nil)) /var/tmp/portage/dev-lang/python-2.7.11-r2/work/Python-2.7.11/Modules/cjkcodecs/_codecs_cn.c:243:1: internal compiler error: in extract_constrain_insn, at recog.c:2246 quoting for easier searches. Enabling optimizations without any -O is a no-op so you effectively tested -O0. What GCC version was able to compile the file?