Mesa (master): gallivm: Eliminate tgsi_util_get_full_src_register_sign_mode call.

[Jose Fonseca]

Module: Mesa
Branch: master
Commit: e1e03ce4928edf4ea0ef43d853cb869f70b126aa
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e1e03ce4928edf4ea0ef43d853cb869f70b126aa

Author: José Fonseca <jose.r.fonseca at gmail.com>
Date:   Sun Oct 16 13:48:33 2011 +0100

gallivm: Eliminate tgsi_util_get_full_src_register_sign_mode call.

It complicates more than it simplifies, now that there's only one negate
bit on TGSI registers.

---

 src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c |   14 +++-----------
 1 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
index 602f96e..40744e3 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
+++ b/src/gallium/auxiliary/gallivm/lp_bld_tgsi_soa.c
@@ -783,20 +783,12 @@ emit_fetch(
       return bld->base.undef;
    }
 
-   switch( tgsi_util_get_full_src_register_sign_mode( reg, chan_index ) ) {
-   case TGSI_UTIL_SIGN_CLEAR:
+   if (reg->Register.Absolute) {
       res = lp_build_abs( &bld->base, res );
-      break;
+   }
 
-   case TGSI_UTIL_SIGN_SET:
-      res = lp_build_abs( &bld->base, res );
-      /* fall through */
-   case TGSI_UTIL_SIGN_TOGGLE:
+   if (reg->Register.Negate) {
       res = lp_build_negate( &bld->base, res );
-      break;
-
-   case TGSI_UTIL_SIGN_KEEP:
-      break;
    }
 
    return res;