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riscv-gcc-1
Commit dc903608 by Richard Kenner
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(record_reg_classes): Fix logic in case of matching operands. 

From-SVN: r6528
parent 9d891e9a
Showing with 3 additions and 3 deletions
gcc/regclass.c
...@@ -988,15 +988,15 @@ record_reg_classes (n_alts, n_ops, ops, modes, constraints, insn) ...@@ -988,15 +988,15 @@ record_reg_classes (n_alts, n_ops, ops, modes, constraints, insn)
if (GET_CODE (op) != REG || REGNO (op) < FIRST_PSEUDO_REGISTER) if (GET_CODE (op) != REG || REGNO (op) < FIRST_PSEUDO_REGISTER)
{ {
/* If this matches the other operand, we have no added /* If this matches the other operand, we have no added
cost. */ cost and we win. */
if (rtx_equal_p (ops[j], op)) if (rtx_equal_p (ops[j], op))
; win = 1;
/* If we can put the other operand into a register, add to /* If we can put the other operand into a register, add to
the cost of this alternative the cost to copy this the cost of this alternative the cost to copy this
operand to the register used for the other operand. */ operand to the register used for the other operand. */
if (classes[j] != NO_REGS) else if (classes[j] != NO_REGS)
alt_cost += copy_cost (op, mode, classes[j], 1), win = 1; alt_cost += copy_cost (op, mode, classes[j], 1), win = 1;
} }
else if (GET_CODE (ops[j]) != REG else if (GET_CODE (ops[j]) != REG
......
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