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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 e76049a..b8a4335 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -7323,6 +7323,10 @@ force_to_mode (rtx x, enum machine_mode mode, unsigned HOST_WIDE_INT mask, && (GET_MODE_MASK (GET_MODE (x)) & ~mask) == 0) return gen_lowpart (mode, x); + /* The arithmetic simplifications here do the wrong thing on vector modes. */ + if (VECTOR_MODE_P (mode) || VECTOR_MODE_P (GET_MODE (x))) + return gen_lowpart (mode, x); + switch (code) { case CLOBBER: |