diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index 1b598b4..fc473b6 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -3712,6 +3712,9 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p, #ifdef HAVE_cc0 && !reg_referenced_p (cc0_rtx, set0) #endif + /* If I3 is a jump, ensure that set0 is a jump so that + we do not create invalid RTL. */ + && (!JUMP_P (i3) || SET_DEST (set0) == pc_rtx) ) { newi2pat = set1; @@ -3726,6 +3729,9 @@ try_combine (rtx i3, rtx i2, rtx i1, rtx i0, int *new_direct_jump_p, #ifdef HAVE_cc0 && !reg_referenced_p (cc0_rtx, set1) #endif + /* If I3 is a jump, ensure that set1 is a jump so that + we do not create invalid RTL. */ + && (!JUMP_P (i3) || SET_DEST (set1) == pc_rtx) ) { newi2pat = set0; |