Don't sign extend 32 bit unsigned constants in iasm.

dlang · Apr 22, 2015 · b0f890f · b0f890f
1 parent b21176c
commit b0f890f
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Showing 2 changed files with 20 additions and 1 deletion.
diff --git a/src/iasm.c b/src/iasm.c
@@ -4422,12 +4422,17 @@ static OPND *asm_primary_exp()
             break;
 
         case TOKint32v:
-        case TOKuns32v:
             o1 = new OPND();
             o1->disp = (d_int32)asmtok->int64value;
             asm_token();
             break;
 
+        case TOKuns32v:
+            o1 = new OPND();
+            o1->disp = (d_uns32)asmtok->uns64value;
+            asm_token();
+            break;
+
         case TOKint64v:
         case TOKuns64v:
             o1 = new OPND();

diff --git a/test/runnable/iasm64.d b/test/runnable/iasm64.d
@@ -6561,6 +6561,19 @@ L1:     pop     RAX;
 
 /****************************************************/
 
+void testconst()
+{
+    ulong result;
+    asm
+    {
+        mov RAX, 0xFFFF_FFFFu;
+        mov result, RAX;
+    }
+    assert (result == 0xFFFF_FFFFu);
+}
+
+/****************************************************/
+
 void test9965()
 {
     ubyte* p;
@@ -6721,6 +6734,7 @@ int main()
     test9965();
     test12849();
     test12968();
+    testconst();
 
     printf("Success\n");
     return 0;