From cfe50c05d5614813a9531dd0b8087eed5355ec69 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Tue, 28 Jul 1998 15:27:10 -0600 Subject: [PATCH] cse.c (cse_insn): Enable subsitution inside libcall only for REG, SUBREG, MEM. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit � * cse.c (cse_insn): Enable subsitution inside libcall only for REG, SUBREG, MEM. * rtlanal.c (replace_rtx): Prohibit replaces in CONST_DOUBLE. From-SVN: r21446 --- gcc/cse.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/gcc/cse.c b/gcc/cse.c index 19e809a52dc4..5d121870afb0 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -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)); -- 2.47.2