https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86304
Bug ID: 86304 Summary: [9 regression][MIPS] FAIL: gcc.dg/vect/pr79887.c -mmsa (internal compiler error) starting with r261740 Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: regression Assignee: unassigned at gcc dot gnu.org Reporter: paul.hua.gm at gmail dot com Target Milestone: --- Created attachment 44318 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44318&action=edit preprocessed .i file /home/xuchenghua/GCC/test/gcc-r261994-3a_obj/gcc/cc1 -fpreprocessed pr79887.i -mel -quiet -dumpbase pr79887.c -mmsa -march=mips64r2 -mabi=64 -mllsc -mips64r2 -mno-shared -auxbase-strip pr79887.s -O2 -version -fdiagnostics-color=never -fno-diagnostics-show-caret -ftree-vectorize -fvect-cost-model=unlimited -fno-common -fdump-tree-vect-details -fno-trapping-math -o pr79887.s --param vect-epilogues-nomask=1 GNU C17 (gcc trunk r261994 mips64el o32 n32 n64) version 9.0.0 20180624 (experimental) (mips64el-linux-gnu) compiled by GNU C version 9.0.0 20180624 (experimental), GMP version 6.0.0, MPFR version 3.1.2, MPC version 1.0.2, isl version none GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 GNU C17 (gcc trunk r261994 mips64el o32 n32 n64) version 9.0.0 20180624 (experimental) (mips64el-linux-gnu) compiled by GNU C version 9.0.0 20180624 (experimental), GMP version 6.0.0, MPFR version 3.1.2, MPC version 1.0.2, isl version none GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096 Compiler executable checksum: 1af6f302eecac9296cae2767584f1008 during RTL pass: expand /home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.dg/vect/pr79887.c: In function 'foo': /home/xuchenghua/GCC/gcc_git_trunk/gcc/testsuite/gcc.dg/vect/pr79887.c:8:1: internal compiler error: in expand_LOOP_VECTORIZED, at internal-fn.c:2430 0x12012172f expand_LOOP_VECTORIZED ../../../gcc_git_trunk/gcc/internal-fn.c:2430 0x1202d5537 expand_call_stmt ../../../gcc_git_trunk/gcc/cfgexpand.c:2596 0x1202d5537 expand_gimple_stmt_1 ../../../gcc_git_trunk/gcc/cfgexpand.c:3575 0x1202d5537 expand_gimple_stmt ../../../gcc_git_trunk/gcc/cfgexpand.c:3734 0x1202d8327 expand_gimple_basic_block ../../../gcc_git_trunk/gcc/cfgexpand.c:5765 0x1202dda8f execute ../../../gcc_git_trunk/gcc/cfgexpand.c:6368 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. bisected show this bug starting with r261740. preprocessed .i file are attached.