On 23.06.2017 01:16, Andres Gomez wrote:
Nicolai, this depends on:
https://cgit.freedesktop.org/mesa/mesa/commit/src/mesa?id=944455217b67cb524efef9e628baf09416db5524
Which didn't make it for -stable. Should we cherry-pick that too?
Ah right, forgot about that. No, just drop the patch for stable.
Thanks,
Nicolai
On Mon, 2017-06-12 at 21:45 +0200, Nicolai Hähnle wrote:
From: Nicolai Hähnle <nicolai.haeh...@amd.com>
This fixes a bug when lowering ballotARB: previously, using writemask 0xf,
emit_asm would create TGSI_OPCODE_BALLOT instructions that span two registers
to cover 4 64-bit channels. This could trample over other a neighbouring
temporary.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=101360
Cc: 17.1 <mesa-sta...@lists.freedesktop.org>
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index c5d2e0f..cb86392 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -3906,20 +3906,22 @@ glsl_to_tgsi_visitor::visit_image_intrinsic(ir_call *ir)
if (imgvar->data.memory_volatile)
inst->buffer_access |= TGSI_MEMORY_VOLATILE;
}
void
glsl_to_tgsi_visitor::visit_generic_intrinsic(ir_call *ir, unsigned op)
{
ir->return_deref->accept(this);
st_dst_reg dst = st_dst_reg(this->result);
+ dst.writemask = u_bit_consecutive(0, ir->return_deref->var->type->vector_elements);
+
st_src_reg src[4] = { undef_src, undef_src, undef_src, undef_src };
unsigned num_src = 0;
foreach_in_list(ir_rvalue, param, &ir->actual_parameters) {
assert(num_src < ARRAY_SIZE(src));
this->result.file = PROGRAM_UNDEFINED;
param->accept(this);
assert(this->result.file != PROGRAM_UNDEFINED);
src[num_src] = this->result;
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