diff options
Diffstat (limited to 'gcc/config/alpha/alpha.c')
| -rw-r--r-- | gcc/config/alpha/alpha.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 34ec9674727..2f4873eb6c2 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -2469,7 +2469,7 @@ alpha_emit_conditional_branch (rtx operands[], enum machine_mode cmp_mode) { case EQ: case LE: case LT: case LEU: case LTU: case UNORDERED: - /* We have these compares: */ + /* We have these compares. */ cmp_code = code, branch_code = NE; break; @@ -2706,13 +2706,15 @@ alpha_emit_conditional_move (rtx cmp, enum machine_mode mode) switch (code) { case EQ: case LE: case LT: case LEU: case LTU: + case UNORDERED: /* We have these compares. */ cmp_code = code, code = NE; break; case NE: - /* This must be reversed. */ - cmp_code = EQ, code = EQ; + case ORDERED: + /* These must be reversed. */ + cmp_code = reverse_condition (code), code = EQ; break; case GE: case GT: case GEU: case GTU: @@ -2732,6 +2734,14 @@ alpha_emit_conditional_move (rtx cmp, enum machine_mode mode) gcc_unreachable (); } + if (cmp_mode == DImode) + { + if (!reg_or_0_operand (op0, DImode)) + op0 = force_reg (DImode, op0); + if (!reg_or_8bit_operand (op1, DImode)) + op1 = force_reg (DImode, op1); + } + tem = gen_reg_rtx (cmp_mode); emit_insn (gen_rtx_SET (VOIDmode, tem, gen_rtx_fmt_ee (cmp_code, cmp_mode, @@ -2743,6 +2753,14 @@ alpha_emit_conditional_move (rtx cmp, enum machine_mode mode) local_fast_math = 1; } + if (cmp_mode == DImode) + { + if (!reg_or_0_operand (op0, DImode)) + op0 = force_reg (DImode, op0); + if (!reg_or_8bit_operand (op1, DImode)) + op1 = force_reg (DImode, op1); + } + /* We may be able to use a conditional move directly. This avoids emitting spurious compares. */ if (signed_comparison_operator (cmp, VOIDmode) @@ -2761,11 +2779,13 @@ alpha_emit_conditional_move (rtx cmp, enum machine_mode mode) switch (code) { case EQ: case LE: case LT: case LEU: case LTU: + case UNORDERED: /* We have these compares: */ break; case NE: - /* This must be reversed. */ + case ORDERED: + /* These must be reversed. */ code = reverse_condition (code); cmov_code = EQ; break; |