diff options
Diffstat (limited to 'gcc/lra-constraints.c')
| -rw-r--r-- | gcc/lra-constraints.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/gcc/lra-constraints.c b/gcc/lra-constraints.c index e381c70..d90ac02 100644 --- a/gcc/lra-constraints.c +++ b/gcc/lra-constraints.c @@ -293,7 +293,9 @@ in_class_p (rtx reg, enum reg_class cl, enum reg_class *new_class) if (nregs == 1) return true; for (j = 0; j < nregs; j++) - if (TEST_HARD_REG_BIT (lra_no_alloc_regs, hard_regno + j)) + if (TEST_HARD_REG_BIT (lra_no_alloc_regs, hard_regno + j) + || ! TEST_HARD_REG_BIT (reg_class_contents[common_class], + hard_regno + j)) break; if (j >= nregs) return true; |