1 files changed, 14 insertions, 10 deletions

diff --git a/src/gallium/auxiliary/tgsi/tgsi_build.c b/src/gallium/auxiliary/tgsi/tgsi_build.c
index ed8fc5ac25..fd02c2c87c 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_build.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_build.c
@@ -801,10 +801,14 @@ tgsi_default_instruction_ext_nv( void )
    return instruction_ext_nv;
 }
 
-union token_u32
+
+/** test for inequality of 32-bit values pointed to by a and b */
+static INLINE boolean
+compare32(const void *a, const void *b)
 {
-   unsigned u32;
-};
+   return *((uint32_t *) a) != *((uint32_t *) b);
+}
+
 
 unsigned
 tgsi_compare_instruction_ext_nv(
@@ -813,7 +817,7 @@ tgsi_compare_instruction_ext_nv(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_instruction_ext_nv
@@ -872,7 +876,7 @@ tgsi_compare_instruction_ext_label(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_instruction_ext_label
@@ -913,7 +917,7 @@ tgsi_compare_instruction_ext_texture(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_instruction_ext_texture
@@ -1035,7 +1039,7 @@ tgsi_compare_src_register_ext_swz(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_src_register_ext_swz
@@ -1103,7 +1107,7 @@ tgsi_compare_src_register_ext_mod(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_src_register_ext_mod
@@ -1249,7 +1253,7 @@ tgsi_compare_dst_register_ext_concode(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_dst_register_ext_concode
@@ -1307,7 +1311,7 @@ tgsi_compare_dst_register_ext_modulate(
 {
    a.Padding = b.Padding = 0;
    a.Extended = b.Extended = 0;
-   return ((union token_u32 *) &a)->u32 != ((union token_u32 *) &b)->u32;
+   return compare32(&a, &b);
 }
 
 struct tgsi_dst_register_ext_modulate