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authorMarek Olšák <marek.olsak@amd.com>2017-08-28 23:28:33 +0200
committerMarek Olšák <marek.olsak@amd.com>2017-08-29 13:18:37 +0200
commit79674066b6f98be96cb63a0332ac421858544a20 (patch)
tree494145a25ba150512fae204536924a17889e856b
parent43e8808b82b9ebaecde4a30984fef897c1a1a030 (diff)
st/mesa: fix XPD lowering - don't read dst
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=102461 Reviewed-by: Brian Paul <brianp@vmware.com>
-rw-r--r--src/mesa/state_tracker/st_mesa_to_tgsi.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/mesa/state_tracker/st_mesa_to_tgsi.c b/src/mesa/state_tracker/st_mesa_to_tgsi.c
index 916f7fa2e86..fa9fa440efd 100644
--- a/src/mesa/state_tracker/st_mesa_to_tgsi.c
+++ b/src/mesa/state_tracker/st_mesa_to_tgsi.c
@@ -562,8 +562,10 @@ compile_instruction(
ureg_scalar(src[0], TGSI_SWIZZLE_X));
break;
- case OPCODE_XPD:
- ureg_MUL(ureg, ureg_writemask(dst[0], TGSI_WRITEMASK_XYZ),
+ case OPCODE_XPD: {
+ struct ureg_dst tmp = ureg_DECL_temporary(ureg);
+
+ ureg_MUL(ureg, ureg_writemask(tmp, TGSI_WRITEMASK_XYZ),
ureg_swizzle(src[0], TGSI_SWIZZLE_Y, TGSI_SWIZZLE_Z,
TGSI_SWIZZLE_X, 0),
ureg_swizzle(src[1], TGSI_SWIZZLE_Z, TGSI_SWIZZLE_X,
@@ -573,8 +575,9 @@ compile_instruction(
TGSI_SWIZZLE_Y, 0),
ureg_negate(ureg_swizzle(src[1], TGSI_SWIZZLE_Y,
TGSI_SWIZZLE_Z, TGSI_SWIZZLE_X, 0)),
- ureg_src(dst[0]));
+ ureg_src(tmp));
break;
+ }
case OPCODE_RSQ:
ureg_RSQ( ureg, dst[0], ureg_abs(src[0]) );