* gcc.target/i386/sse-13.c: Include <mm_malloc.h>

[pf3gnuchains/gcc-fork.git] / gcc / rtlanal.c

diff --git a/gcc/rtlanal.c b/gcc/rtlanal.c
index 423d6ef..804d6c8 100644 (file)
--- a/gcc/rtlanal.c
+++ b/gcc/rtlanal.c
@@ -2182,7 +2182,7 @@ enum may_trap_p_flags
    cannot trap at its current location, but it might become trapping if moved
    elsewhere.  */
 
-static int
+int
 may_trap_p_1 (const_rtx x, unsigned flags)
 {
   int i;
@@ -2209,8 +2209,11 @@ may_trap_p_1 (const_rtx x, unsigned flags)
     case SCRATCH:
       return 0;
 
-    case ASM_INPUT:
+    case UNSPEC:
     case UNSPEC_VOLATILE:
+      return targetm.unspec_may_trap_p (x, flags);
+
+    case ASM_INPUT:
     case TRAP_IF:
       return 1;
 
@@ -2986,16 +2989,15 @@ loc_mentioned_in_p (rtx *loc, const_rtx in)
   fmt = GET_RTX_FORMAT (code);
   for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
     {
-      if (loc == &in->u.fld[i].rt_rtx)
-       return 1;
       if (fmt[i] == 'e')
        {
-         if (loc_mentioned_in_p (loc, XEXP (in, i)))
+         if (loc == &XEXP (in, i) || loc_mentioned_in_p (loc, XEXP (in, i)))
            return 1;
        }
       else if (fmt[i] == 'E')
        for (j = XVECLEN (in, i) - 1; j >= 0; j--)
-         if (loc_mentioned_in_p (loc, XVECEXP (in, i, j)))
+         if (loc == &XVECEXP (in, i, j)
+             || loc_mentioned_in_p (loc, XVECEXP (in, i, j)))
            return 1;
     }
   return 0;
@@ -3431,6 +3433,9 @@ label_is_jump_target_p (const_rtx label, const_rtx jump_insn)
          return true;
     }
 
+  if (find_reg_note (jump_insn, REG_LABEL_TARGET, label))
+    return true;
+
   return false;
 }