DynASM/x86: Fix VREG support.

1 files changed, 7 insertions, 4 deletions

diff --git a/dynasm/dasm_x86.h b/dynasm/dasm_x86.h
index 84b9d17f..feb84c14 100644
--- a/dynasm/dasm_x86.h
+++ b/dynasm/dasm_x86.h
@@ -299,11 +299,13 @@ int dasm_link(Dst_DECL, size_t *szp)
 
     while (pos != lastpos) {
       dasm_ActList p = D->actionlist + b[pos++];
+      int op = 0;
       while (1) {
-        int op, action = *p++;
+        int action = *p++;
         switch (action) {
-        case DASM_REL_LG: p++; op = p[-3]; goto rel_pc;
-        case DASM_REL_PC: op = p[-2]; rel_pc: {
+        case DASM_REL_LG: p++;
+          /* fallthrough */
+        case DASM_REL_PC: {
           int shrink = op == 0xe9 ? 3 : ((op&0xf0) == 0x80 ? 4 : 0);
           if (shrink) {  /* Shrinkable branch opcode? */
             int lofs, lpos = b[pos];
@@ -335,9 +337,10 @@ int dasm_link(Dst_DECL, size_t *szp)
         case DASM_LABEL_PC: b[pos++] += ofs; break; /* Fix label offset. */
         case DASM_ALIGN: ofs -= (b[pos++]+ofs)&*p++; break; /* Adjust ofs. */
         case DASM_EXTERN: p += 2; break;
-        case DASM_ESC: p++; break;
+        case DASM_ESC: op = *p++; break;
         case DASM_MARK: break;
         case DASM_SECTION: case DASM_STOP: goto stop;
+        default: op = action; break;
         }
       }
       stop: (void)0;