diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -5328,8 +5328,16 @@ cse_insn (insn, libcall_insn) else if (constant_pool_entries_cost && CONSTANT_P (trial) + /* Reject cases that will abort in decode_rtx_const. + On the alpha when simplifying a switch, we get + (const (truncate (minus (label_ref) (label_ref)))). */ && ! (GET_CODE (trial) == CONST && GET_CODE (XEXP (trial, 0)) == TRUNCATE) + /* Likewise on IA-64, except without the truncate. */ + && ! (GET_CODE (trial) == CONST + && GET_CODE (XEXP (trial, 0)) == MINUS + && GET_CODE (XEXP (XEXP (trial, 0), 0)) == LABEL_REF + && GET_CODE (XEXP (XEXP (trial, 0), 1)) == LABEL_REF) && (src_folded == 0 || (GET_CODE (src_folded) != MEM && ! src_folded_force_flag)) |