[Mesa-dev] [PATCH 1/2] gallivm: allow negation of all integer types

Zack Rusin zackr at vmware.com
Wed May 1 18:13:56 PDT 2013


It's valid. Some shaders do the negation on unsigned and then
use the results in opcodes taking signed integers.

Signed-off-by: Zack Rusin <zackr at vmware.com>
---
 src/gallium/auxiliary/gallivm/lp_bld_tgsi.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
index 7255d97..66ff14c 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi.c
@@ -339,9 +339,9 @@ lp_build_emit_fetch(
          assert(0);
          break;
       case TGSI_TYPE_SIGNED:
+      case TGSI_TYPE_UNSIGNED:
          res = lp_build_negate( &bld_base->int_bld, res );
          break;
-      case TGSI_TYPE_UNSIGNED:
       case TGSI_TYPE_VOID:
       default:
          assert(0);
-- 
1.7.10.4


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