When compiled with -O3 -mips16 -EL -mabi=o64 -funroll-loops, gcc.c-torture/compile/pr34856.c ICEs with:
pr34856.c:16: error: insn does not satisfy its constraints: (insn 47 44 278 2 /scratch/richard/gcc/HEAD/gcc/gcc/testsuite/gcc.c-torture/compile/pr34856.c:12 (set (reg:DI 2 $2) (zero_extend:DI (mem/u/c/i:SI (symbol_ref/u:SI ("*$LC1") [flags 0x2]) [4 S4 A32]))) 141 {zero_extendsidi2} (expr_list:REG_EQUIV (zero_extend:DI (const:SI (plus:SI (symbol_ref:SI ("g") [flags 0x40] <var_decl 0x2b7ad7741280 g>) (const_int 32 [0x20])))) (nil))) pr34856.c:16: internal compiler error: in reload_cse_simplify_operands, at postreload.c:395 While the mode of the failure itself is not new, this particular testcase compiles fine with 4.2. -- Summary: [4.3 regression] MIPS16 ICE in gcc.c- torture/compile/pr34856.c Product: gcc Version: 4.3.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: target AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: rsandifo at gcc dot gnu dot org GCC target triplet: mipsisa64-elf http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34995