https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66611
Bug ID: 66611 Summary: SH: ICE on -O2 Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: ysato at users dot sourceforge.jp Target Milestone: --- Created attachment 35819 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35819&action=edit problem source code $ LANG=C sh-unknown-linux-gcc -O2 -mb -m2 w83627ehf.c w83627ehf.c: In function 'show_caseopen': w83627ehf.c:24361:1: error: insn does not satisfy its constraints: } ^ (insn 118 95 119 2 (set (reg:SI 1 r1) (sign_extend:SI (mem:QI (plus:SI (reg/f:SI 8 r8 [175]) (const_int 12 [0xc])) [0 MEM[(struct sensor_device_attribute_2 *)attr_6(D)].index+0 S1 A32]))) w83627ehf.c:24359 232 {*extendqisi2_compact_mem_disp} (nil)) w83627ehf.c:24361:1: internal compiler error: in extract_constrain_insn, at recog.c:2221 0x94aed8 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*) ../../gcc/rtl-error.c:109 0x94aeff _fatal_insn_not_found(rtx_def const*, char const*, int, char const*) ../../gcc/rtl-error.c:120 0x9155f7 extract_constrain_insn(rtx_insn*) ../../gcc/recog.c:2221 0x918f86 copyprop_hardreg_forward_1 ../../gcc/regcprop.c:800 0x919bed execute ../../gcc/regcprop.c:1290 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <http://gcc.gnu.org/bugs.html> for instructions.