https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61550
Bug ID: 61550 Summary: [4.10 Regression] [SH] build failure with ICE in gen_reg_rtx, at emit-rtl.c:943 Product: gcc Version: 4.9.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: kkojima at gcc dot gnu.org Target: sh*-*-* Created attachment 32966 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=32966&action=edit A reduced test case The trunk fails to build on sh4-unknown-linux-gnu with an ICE during compiling libgomp. A reduced case attached fails with: gomp.c: In function 'gomp_thread_start': gomp.c:59:1: internal compiler error: in gen_reg_rtx, at emit-rtl.c:943 } ^ 0x8332ab1 gen_reg_rtx(machine_mode) ../../ORIG/trunk/gcc/emit-rtl.c:943 0x8343ad2 force_reg ../../ORIG/trunk/gcc/explow.c:659 0x890f5fe prepare_move_operands(rtx_def**, machine_mode) ../../ORIG/trunk/gcc/config/sh/sh.c:1832 0x896fb3d gen_movsi(rtx_def*, rtx_def*) ../../ORIG/trunk/gcc/config/sh/sh.md:6878 0x8367a60 insn_gen_fn::operator()(rtx_def*, rtx_def*) const ../../ORIG/trunk/gcc/recog.h:308 0x8367a60 emit_move_insn_1(rtx_def*, rtx_def*) ../../ORIG/trunk/gcc/expr.c:3521 0x8556a9c gen_move_insn(rtx_def*, rtx_def*) ../../ORIG/trunk/gcc/optabs.c:4874 0x85bc683 gen_reload ../../ORIG/trunk/gcc/reload1.c:8797