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st/nine: Do not use scratch for face register

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Scratch registers are reused every instructions.
Since vFace is reused, a new temporary register
should be used.

Fixes: https://github.com/iXit/Mesa-3D/issues/311

Signed-off-by: Axel Davy <davyaxel0@gmail.com>

CC: "17.3 18.0" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit d899826733)
This commit is contained in:
Axel Davy 2018-04-05 23:46:48 +02:00 • committed by Juan A. Suarez Romero
parent 8521e00b5c
commit 2165cc0a17
1 changed files with 1 additions and 1 deletions
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2
src/gallium/state_trackers/nine/nine_shader.c
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@ -1079,7 +1079,7 @@ tx_src_param(struct shader_translator *tx, const struct sm1_src_param *param)
case D3DSMO_FACE:
if (ureg_src_is_undef(tx->regs.vFace)) {
if (tx->face_is_sysval_integer) {
tmp = tx_scratch(tx);
tmp = ureg_DECL_temporary(ureg);
tx->regs.vFace =
ureg_DECL_system_value(ureg, TGSI_SEMANTIC_FACE, 0);