recog.h (constrain_operands): Add an alternative_mask parameter.

[gcc.git] / gcc / ira.c

diff --git a/gcc/ira.c b/gcc/ira.c
index 1bdc44612dbb75e7bffda60038d02682a9872fb7..235a21171df9a4f61b17d595d50c6c81714a76fe 100644 (file)
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -1765,7 +1765,9 @@ setup_prohibited_mode_move_regs (void)
          if (INSN_CODE (move_insn) < 0)
            continue;
          extract_insn (move_insn);
-         if (! constrain_operands (1))
+         /* We don't know whether the move will be in code that is optimized
+            for size or speed, so consider all enabled alternatives.  */
+         if (! constrain_operands (1, get_enabled_alternatives (move_insn)))
            continue;
          CLEAR_HARD_REG_BIT (ira_prohibited_mode_move_regs[i], j);
        }