diff options
Diffstat (limited to 'gcc/simplify-rtx.c')
| -rw-r--r-- | gcc/simplify-rtx.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c index 2f7ae25..a703331 100644 --- a/gcc/simplify-rtx.c +++ b/gcc/simplify-rtx.c @@ -1704,15 +1704,7 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, : const0_rtx; /* x/1 is x. */ if (trueop1 == const1_rtx) - { - /* Handle narrowing UDIV. */ - rtx x = gen_lowpart_common (mode, op0); - if (x) - return x; - if (mode != GET_MODE (op0) && GET_MODE (op0) != VOIDmode) - return gen_lowpart_SUBREG (mode, op0); - return op0; - } + return rtl_hooks.gen_lowpart_no_emit (mode, op0); /* Convert divide by power of two into shift. */ if (GET_CODE (trueop1) == CONST_INT && (val = exact_log2 (INTVAL (trueop1))) > 0) @@ -1768,22 +1760,11 @@ simplify_binary_operation_1 (enum rtx_code code, enum machine_mode mode, : const0_rtx; /* x/1 is x. */ if (trueop1 == const1_rtx) - { - /* Handle narrowing DIV. */ - rtx x = gen_lowpart_common (mode, op0); - if (x) - return x; - if (mode != GET_MODE (op0) && GET_MODE (op0) != VOIDmode) - return gen_lowpart_SUBREG (mode, op0); - return op0; - } + return rtl_hooks.gen_lowpart_no_emit (mode, op0); /* x/-1 is -x. */ if (trueop1 == constm1_rtx) { - rtx x = gen_lowpart_common (mode, op0); - if (!x) - x = (mode != GET_MODE (op0) && GET_MODE (op0) != VOIDmode) - ? gen_lowpart_SUBREG (mode, op0) : op0; + rtx x = rtl_hooks.gen_lowpart_no_emit (mode, op0); return simplify_gen_unary (NEG, mode, x, mode); } } |