From: José Fonseca <jfonseca@vmware.com>
Date: Sun, 25 Oct 2009 09:03:50 +0000 (+0000)
Subject: llvmpipe: Allow different signs when unpacking.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8d80fd3f554cab2db962a903ce4eaba7c8fed7ac;p=mesa.git

llvmpipe: Allow different signs when unpacking.
---

diff --git a/src/gallium/drivers/llvmpipe/lp_bld_pack.c b/src/gallium/drivers/llvmpipe/lp_bld_pack.c
index fe82fda0392..bc360ad77ad 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_pack.c
+++ b/src/gallium/drivers/llvmpipe/lp_bld_pack.c
@@ -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), "");
    }