llvmpipe: Allow different signs when unpacking.

2009-10-25 09:03:50 +00:00
parent b544ab7299
commit 8d80fd3f55
1 changed files with 1 additions and 2 deletions
@@ -159,11 +159,10 @@ lp_build_unpack2(LLVMBuilderRef builder,

   assert(!src_type.floating);
   assert(!dst_type.floating);
-   assert(dst_type.sign == src_type.sign);
   assert(dst_type.width == src_type.width * 2);
   assert(dst_type.length * 2 == src_type.length);

-   if(src_type.sign) {
+   if(dst_type.sign && src_type.sign) {
      /* Replicate the sign bit in the most significant bits */
      msb = LLVMBuildAShr(builder, src, lp_build_int_const_scalar(src_type, src_type.width - 1), "");
   }