diff options
Diffstat (limited to 'gcc/reg-stack.c')
| -rw-r--r-- | gcc/reg-stack.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/gcc/reg-stack.c b/gcc/reg-stack.c index 6496bad..ab400c5 100644 --- a/gcc/reg-stack.c +++ b/gcc/reg-stack.c @@ -2344,6 +2344,15 @@ subst_stack_regs_pat (insn, regstack, pat) case IF_THEN_ELSE: /* This insn requires the top of stack to be the destination. */ + /* If the comparison operator is an FP comparison operator, + it is handled correctly by compare_for_stack_reg () who + will move the destination to the top of stack. But if the + comparison operator is not an FP comparison operator, we + have to handle it here. */ + if (get_hard_regnum (regstack, *dest) >= FIRST_STACK_REG + && REGNO (*dest) != regstack->reg[regstack->top]) + emit_swap_insn (insn, regstack, *dest); + src1 = get_true_reg (&XEXP (SET_SRC (pat), 1)); src2 = get_true_reg (&XEXP (SET_SRC (pat), 2)); |