From 178c39f68b8df001076d4ede516e2d498c122004 Mon Sep 17 00:00:00 2001 From: Richard Kenner Date: Mon, 25 May 1992 21:33:51 -0400 Subject: [PATCH] *** empty log message *** From-SVN: r1087 --- gcc/cse.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/gcc/cse.c b/gcc/cse.c index 940a0bedb59..dc7096b2c10 100644 --- a/gcc/cse.c +++ b/gcc/cse.c @@ -2360,10 +2360,11 @@ canon_reg (x, insn) rtx new = canon_reg (XEXP (x, i), insn); /* If replacing pseudo with hard reg or vice versa, ensure the - insn remains valid. */ + insn remains valid. Likewise if the insn has MATCH_DUPs. */ if (new && GET_CODE (new) == REG && GET_CODE (XEXP (x, i)) == REG - && ((REGNO (new) < FIRST_PSEUDO_REGISTER) - != (REGNO (XEXP (x, i)) < FIRST_PSEUDO_REGISTER))) + && (((REGNO (new) < FIRST_PSEUDO_REGISTER) + != (REGNO (XEXP (x, i)) < FIRST_PSEUDO_REGISTER)) + || (insn != 0 && insn_n_dups[recog_memoized (insn)] > 0))) validate_change (insn, &XEXP (x, i), new, 0); else XEXP (x, i) = new; -- 2.30.2