diff options
Diffstat (limited to 'gcc/config/alpha/alpha.c')
| -rw-r--r-- | gcc/config/alpha/alpha.c | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index f27c08a8cf8..388e77d977e 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -2658,12 +2658,12 @@ alpha_emit_conditional_move (rtx cmp, enum machine_mode mode) break; case GE: case GT: case GEU: case GTU: - /* These must be swapped. */ - if (op1 != CONST0_RTX (cmp_mode)) - { - code = swap_condition (code); - tem = op0, op0 = op1, op1 = tem; - } + /* These normally need swapping, but for integer zero we have + special patterns that recognize swapped operands. */ + if (cmp_mode == DImode && op1 == const0_rtx) + break; + code = swap_condition (code); + tem = op0, op0 = op1, op1 = tem; break; default: @@ -3025,12 +3025,9 @@ alpha_emit_xfloating_compare (enum rtx_code *pcode, rtx op0, rtx op1) operands[1] = op1; out = gen_reg_rtx (DImode); - /* What's actually returned is -1,0,1, not a proper boolean value, - so use an EXPR_LIST as with a generic libcall instead of a - comparison type expression. */ - note = gen_rtx_EXPR_LIST (VOIDmode, op1, NULL_RTX); - note = gen_rtx_EXPR_LIST (VOIDmode, op0, note); - note = gen_rtx_EXPR_LIST (VOIDmode, func, note); + /* What's actually returned is -1,0,1, not a proper boolean value. */ + note = gen_rtx_fmt_ee (cmp_code, VOIDmode, op0, op1); + note = gen_rtx_UNSPEC (DImode, gen_rtvec (1, note), UNSPEC_XFLT_COMPARE); alpha_emit_xfloating_libcall (func, out, operands, 2, note); return out; |