PR c++/49102

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

diff --git a/gcc/ira.c b/gcc/ira.c
index 32dfa18..9235cb3 100644 (file)
--- a/gcc/ira.c
+++ b/gcc/ira.c
@@ -1422,6 +1422,12 @@ clarify_prohibited_class_mode_regs (void)
          if (TEST_HARD_REG_BIT (ira_prohibited_class_mode_regs[cl][j], hard_regno))
            continue;
          nregs = hard_regno_nregs[hard_regno][j];
+          if (hard_regno + nregs > FIRST_PSEUDO_REGISTER)
+            {
+              SET_HARD_REG_BIT (ira_prohibited_class_mode_regs[cl][j],
+                                hard_regno);
+               continue;
+            }
          pclass = ira_pressure_class_translate[REGNO_REG_CLASS (hard_regno)];
          for (nregs-- ;nregs >= 0; nregs--)
            if (((enum reg_class) pclass