https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68973
Bug ID: 68973 Summary: [6 regression] Internal compiler error on power for gcc/testsuite/g++.dg/pr67211.C Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: seurer at linux dot vnet.ibm.com Target Milestone: --- This may be a regression of pr67211. It fails on both big and little endian. FAIL: g++.dg/pr67211.C -std=gnu++98 (internal compiler error) FAIL: g++.dg/pr67211.C -std=gnu++98 (test for excess errors) FAIL: g++.dg/pr67211.C -std=gnu++11 (internal compiler error) FAIL: g++.dg/pr67211.C -std=gnu++11 (test for excess errors) FAIL: g++.dg/pr67211.C -std=gnu++14 (internal compiler error) FAIL: g++.dg/pr67211.C -std=gnu++14 (test for excess errors) seurer@genoa:~/tests/gcc$ gcc-test -c pr67211.C -mcpu=power7 -mtune=power8 -O3 -w -std=gnu++11 pr67211.C: In function 'void Linked()': pr67211.C:50:1: error: insn does not satisfy its constraints: } ^ (insn 258 153 259 8 (set (reg:DI 9 9) (reg/f:DI 63 31 [orig:185 p3$_M_node ] [185])) pr67211.C:28 540 {*movdi_internal64} (nil)) pr67211.C:50:1: internal compiler error: in extract_constrain_insn, at recog.c:2189 0x10a108f3 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) /home/seurer/gcc/gcc-test/gcc/rtl-error.c:108 0x10a1094b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) /home/seurer/gcc/gcc-test/gcc/rtl-error.c:119 0x109d6b07 extract_constrain_insn(rtx_insn*) /home/seurer/gcc/gcc-test/gcc/recog.c:2189 0x109aa467 reload_cse_simplify_operands /home/seurer/gcc/gcc-test/gcc/postreload.c:394 0x109abf33 reload_cse_simplify /home/seurer/gcc/gcc-test/gcc/postreload.c:180 0x109abf33 reload_cse_regs_1 /home/seurer/gcc/gcc-test/gcc/postreload.c:219 0x109ad867 reload_cse_regs /home/seurer/gcc/gcc-test/gcc/postreload.c:67 0x109ad867 execute /home/seurer/gcc/gcc-test/gcc/postreload.c:2336