diff options
Diffstat (limited to 'gcc/combine.c')
| -rw-r--r-- | gcc/combine.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gcc/combine.c b/gcc/combine.c index dca4d97..0baeb98 100644 --- a/gcc/combine.c +++ b/gcc/combine.c @@ -5574,26 +5574,28 @@ simplify_logical (rtx x) if (GET_CODE (op0) == AND) { - x = apply_distributive_law + rtx tmp = apply_distributive_law (gen_binary (AND, mode, gen_binary (IOR, mode, XEXP (op0, 0), op1), gen_binary (IOR, mode, XEXP (op0, 1), copy_rtx (op1)))); - if (GET_CODE (x) != IOR) - return x; + if (GET_CODE (tmp) != IOR + && rtx_cost (tmp, SET) < rtx_cost (x, SET)) + return tmp; } if (GET_CODE (op1) == AND) { - x = apply_distributive_law + rtx tmp = apply_distributive_law (gen_binary (AND, mode, gen_binary (IOR, mode, XEXP (op1, 0), op0), gen_binary (IOR, mode, XEXP (op1, 1), copy_rtx (op0)))); - if (GET_CODE (x) != IOR) - return x; + if (GET_CODE (tmp) != IOR + && rtx_cost (tmp, SET) < rtx_cost (x, SET)) + return tmp; } /* Convert (ior (ashift A CX) (lshiftrt A CY)) where CX+CY equals the |