diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index cdc677d..7f3f6da 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5156,6 +5156,10 @@ combine_simplify_rtx (rtx x, enum machine_mode op0_mode, int in_dest) force_to_mode (XEXP (x, 0), GET_MODE (XEXP (x, 0)), GET_MODE_MASK (mode), 0)); + /* We can truncate a constant value and return it. */ + if (CONST_INT_P (XEXP (x, 0))) + return gen_int_mode (INTVAL (XEXP (x, 0)), mode); + /* Similarly to what we do in simplify-rtx.c, a truncate of a register whose value is a comparison can be replaced with a subreg if STORE_FLAG_VALUE permits. */ |