From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Mon, 14 Oct 2019 06:40:11 +0000 (-0400)
Subject: nv50/ir: mark STORE destination inputs as used
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1b9d1e13d8e14c348f6d6c8fab5f31e8768a1371;p=mesa.git

nv50/ir: mark STORE destination inputs as used

Observed an issue when looking at the code generatedy by the
image-vertex-attrib-input-output piglit test. Even though the test
itself worked fine (due to TIC 0 being used for the image), this needs
to be fixed.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: mesa-stable@lists.freedesktop.org
---

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
index d62d36008e6..8c429026452 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -1591,6 +1591,12 @@ bool Source::scanInstruction(const struct tgsi_full_instruction *inst)
       if (insn.getOpcode() == TGSI_OPCODE_STORE &&
           dst.getFile() != TGSI_FILE_MEMORY) {
          info->io.globalAccess |= 0x2;
+
+         if (dst.getFile() == TGSI_FILE_INPUT) {
+            // TODO: Handle indirect somehow?
+            const int i = dst.getIndex(0);
+            info->in[i].mask |= 1;
+         }
       }
 
       if (dst.getFile() == TGSI_FILE_OUTPUT) {