diff options
Diffstat (limited to 'gcc/ree.c')
| -rw-r--r-- | gcc/ree.c | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -787,13 +787,16 @@ combine_reaching_defs (ext_cand *cand, const_rtx set_pat, ext_state *state) generated more than one insn. This generates garbage since we throw away the insn when we're - done, only to recreate it later if this test was successful. */ + done, only to recreate it later if this test was successful. + + Make sure to get the mode from the extension (cand->insn). This + is different than in the code to emit the copy as we have not + modified the defining insn yet. */ start_sequence (); - rtx sub_rtx = *get_sub_rtx (def_insn); rtx pat = PATTERN (cand->insn); - rtx new_dst = gen_rtx_REG (GET_MODE (SET_DEST (sub_rtx)), + rtx new_dst = gen_rtx_REG (GET_MODE (SET_DEST (pat)), REGNO (XEXP (SET_SRC (pat), 0))); - rtx new_src = gen_rtx_REG (GET_MODE (SET_DEST (sub_rtx)), + rtx new_src = gen_rtx_REG (GET_MODE (SET_DEST (pat)), REGNO (SET_DEST (pat))); emit_move_insn (new_dst, new_src); |