gas signed overflow fixes

[deliverable/binutils-gdb.git] / gas / config / tc-nios2.c

diff --git a/gas/config/tc-nios2.c b/gas/config/tc-nios2.c
index ec572a61ce63c80735d6f8b40d65aa386d167e29..f1a02001f8c59054621ac835ac23c4f0c3612511 100644 (file)
--- a/gas/config/tc-nios2.c
+++ b/gas/config/tc-nios2.c
@@ -1384,7 +1384,7 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
            nios2_diagnose_overflow (fixup, howto, fixP, value);
 
          /* Apply the right shift.  */
-         fixup = ((signed)fixup) >> howto->rightshift;
+         fixup = (offsetT) fixup >> howto->rightshift;
 
          /* Truncate the fixup to right size.  */
          switch (fixP->fx_r_type)
@@ -1396,13 +1396,11 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
              fixup = fixup & 0xFFFF;
              break;
            case BFD_RELOC_NIOS2_HIADJ16:
-             fixup = ((((fixup >> 16) & 0xFFFF) + ((fixup >> 15) & 0x01))
-                      & 0xFFFF);
+             fixup = ((fixup + 0x8000) >> 16) & 0xFFFF;
              break;
            default:
              {
-               int n = sizeof (fixup) * 8 - howto->bitsize;
-               fixup = (fixup << n) >> n;
+               fixup &= ((valueT) 1 << howto->bitsize) - 1;
                break;
              }
            }