diff options
Diffstat (limited to 'gcc/cse.c')
| -rw-r--r-- | gcc/cse.c | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -6117,8 +6117,9 @@ record_jump_cond (code, mode, op0, op1, reversed_nonequality) Then install the new sources and destinations in the table of available values. - If IN_LIBCALL_BLOCK is nonzero, don't record any equivalence made in - the insn. */ + If LIBCALL_INSN is nonzero, don't record any equivalence made in + the insn. It means that INSN is inside libcall block. In this + case LIBCALL_INSN is the corresponding insn with REG_LIBCALL. */ /* Data on one SET contained in the instruction. */ @@ -6948,7 +6949,10 @@ cse_insn (insn, libcall_insn) /* If we just made a substitution inside a libcall, then we need to make the same substitution in any notes attached to the RETVAL insn. */ - if (libcall_insn) + if (libcall_insn + && (GET_CODE (old_src) == REG + || GET_CODE (old_src) == SUBREG + || GET_CODE (old_src) == MEM)) replace_rtx (REG_NOTES (libcall_insn), old_src, canon_reg (SET_SRC (sets[i].rtl), insn)); |