From: Kazu Hirata Date: Wed, 17 May 2006 21:34:57 +0000 (+0000) Subject: re PR rtl-optimization/27477 (The H8 port doesn't build) X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=c89833429b5b5b63c8ff243ce9abd84efc0c1ec7;p=gcc.git re PR rtl-optimization/27477 (The H8 port doesn't build) PR rtl-optimization/27477 * combine.c (try_combine): Don't split a parallel consisting of two sets into two individual sets if both sets reference cc0. From-SVN: r113872 --- diff --git a/gcc/ChangeLog b/gcc/ChangeLog index d71b1b4c276..ff616dc32ff 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2006-05-17 Kazu Hirata + + PR rtl-optimization/27477 + * combine.c (try_combine): Don't split a parallel consisting + of two sets into two individual sets if both sets reference + cc0. + 2006-05-17 John David Anglin * unwind-dw2.c: Add declarations for uw_update_context and diff --git a/gcc/combine.c b/gcc/combine.c index 33512ec4635..c570ea628ee 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -2896,7 +2896,14 @@ try_combine (rtx i3, rtx i2, rtx i1, int *new_direct_jump_p) && ! reg_referenced_p (SET_DEST (XVECEXP (newpat, 0, 0)), XVECEXP (newpat, 0, 1)) && ! (contains_muldiv (SET_SRC (XVECEXP (newpat, 0, 0))) - && contains_muldiv (SET_SRC (XVECEXP (newpat, 0, 1))))) + && contains_muldiv (SET_SRC (XVECEXP (newpat, 0, 1)))) +#ifdef HAVE_cc0 + /* We cannot split the parallel into two sets if both sets + reference cc0. */ + && ! (reg_referenced_p (cc0_rtx, XVECEXP (newpat, 0, 0)) + && reg_referenced_p (cc0_rtx, XVECEXP (newpat, 0, 1))) +#endif + ) { /* Normally, it doesn't matter which of the two is done first, but it does if one references cc0. In that case, it has to