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 39daf28..3f39bc3 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -7061,6 +7061,12 @@ make_compound_operation (rtx x, enum rtx_code in_code) if (GET_CODE (newer) != SUBREG) newer = make_compound_operation (newer, in_code); + /* force_to_mode can expand compounds. If it just re-expanded the + compound use gen_lowpart instead to convert to the desired + mode. */ + if (rtx_equal_p (newer, x)) + return gen_lowpart (GET_MODE (x), tem); + return newer; } |