diff options
Diffstat (limited to 'gcc/local-alloc.c')
| -rw-r--r-- | gcc/local-alloc.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/gcc/local-alloc.c b/gcc/local-alloc.c index c103400b8ea..e6ff69e48a5 100644 --- a/gcc/local-alloc.c +++ b/gcc/local-alloc.c @@ -907,7 +907,7 @@ update_equiv_regs (void) REG_EQUAL note on the insn. Since this note would be redundant, there's no point creating it earlier than here. */ if (! note && ! rtx_varies_p (src, 0)) - note = set_unique_reg_note (insn, REG_EQUAL, src); + note = set_unique_reg_note (insn, REG_EQUAL, copy_rtx (src)); /* Don't bother considering a REG_EQUAL note containing an EXPR_LIST since it represents a function call */ @@ -953,7 +953,8 @@ update_equiv_regs (void) if (note == 0 && REG_BASIC_BLOCK (regno) >= 0 && MEM_P (SET_SRC (set)) && validate_equiv_mem (insn, dest, SET_SRC (set))) - REG_NOTES (insn) = note = gen_rtx_EXPR_LIST (REG_EQUIV, SET_SRC (set), + REG_NOTES (insn) = note = gen_rtx_EXPR_LIST (REG_EQUIV, + copy_rtx (SET_SRC (set)), REG_NOTES (insn)); if (note) @@ -1061,7 +1062,7 @@ update_equiv_regs (void) && ! memref_used_between_p (dest, init_insn, insn)) { REG_NOTES (init_insn) - = gen_rtx_EXPR_LIST (REG_EQUIV, dest, + = gen_rtx_EXPR_LIST (REG_EQUIV, copy_rtx (dest), REG_NOTES (init_insn)); /* This insn makes the equivalence, not the one initializing the register. */ |