From 86e444036190fb6215e9365fe4126b420a15784a Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 16 Mar 2016 10:10:47 +0100
Subject: [PATCH] nouveau: codegen: Disable more old resource handling code

Commit c3083c7082 ("nv50/ir: add support for BUFFER accesses") disabled /
commented out some of the old resource handling code, but not all of it.

Effectively all of it is dead already, if we ever enter the old code
paths in handeLOAD / handleSTORE / handleATOM we will get an exception
due to trying to access the now always zero-sized resources vector.

Disable all the dead code.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com> (v2)
---
 .../drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

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 762f7ccbb16..dad0e2e6f69 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -856,12 +856,14 @@ public:
    };
    std::vector<TextureView> textureViews;
 
+   /*
    struct Resource {
       uint8_t target; // TGSI_TEXTURE_*
       bool raw;
       uint8_t slot; // $surface index
    };
    std::vector<Resource> resources;
+   */
 
    struct MemoryFile {
       uint8_t mem_type; // TGSI_MEMORY_TYPE_*
@@ -1419,8 +1421,8 @@ private:
    void handleLIT(Value *dst0[4]);
    void handleUserClipPlanes();
 
-   Symbol *getResourceBase(int r);
-   void getResourceCoords(std::vector<Value *>&, int r, int s);
+   // Symbol *getResourceBase(int r);
+   // void getResourceCoords(std::vector<Value *>&, int r, int s);
 
    void handleLOAD(Value *dst0[4]);
    void handleSTORE();
@@ -2149,6 +2151,7 @@ Converter::handleLIT(Value *dst0[4])
    }
 }
 
+/* Keep this around for now as reference when adding img support
 static inline bool
 isResourceSpecial(const int r)
 {
@@ -2245,6 +2248,7 @@ partitionLoadStore(uint8_t comp[2], uint8_t size[2], uint8_t mask)
    }
    return n + 1;
 }
+*/
 
 // For raw loads, granularity is 4 byte.
 // Usage of the texture read mask on OP_SULDP is not allowed.
@@ -2279,6 +2283,7 @@ Converter::handleLOAD(Value *dst0[4])
       return;
    }
 
+/* Keep this around for now as reference when adding img support
    getResourceCoords(off, r, 1);
 
    if (isResourceRaw(code, r)) {
@@ -2344,6 +2349,7 @@ Converter::handleLOAD(Value *dst0[4])
    FOR_EACH_DST_ENABLED_CHANNEL(0, c, tgsi)
       if (dst0[c] != def[c])
          mkMov(dst0[c], def[tgsi.getSrc(0).getSwizzle(c)]);
+*/
 }
 
 // For formatted stores, the write mask on OP_SUSTP can be used.
@@ -2380,6 +2386,7 @@ Converter::handleSTORE()
       return;
    }
 
+/* Keep this around for now as reference when adding img support
    getResourceCoords(off, r, 0);
    src = off;
    const int s = src.size();
@@ -2427,6 +2434,7 @@ Converter::handleSTORE()
       mkTex(OP_SUSTP, getResourceTarget(code, r), code->resources[r].slot, 0,
             dummy, src)->tex.mask = tgsi.getDst(0).getMask();
    }
+*/
 }
 
 // XXX: These only work on resources with the single-component u32/s32 formats.
@@ -2473,7 +2481,7 @@ Converter::handleATOM(Value *dst0[4], DataType ty, uint16_t subOp)
       return;
    }
 
-
+/* Keep this around for now as reference when adding img support
    getResourceCoords(srcv, r, 1);
 
    if (isResourceSpecial(r)) {
@@ -2501,6 +2509,7 @@ Converter::handleATOM(Value *dst0[4], DataType ty, uint16_t subOp)
    for (int c = 0; c < 4; ++c)
       if (dst0[c])
          dst0[c] = dst; // not equal to rDst so handleInstruction will do mkMov
+*/
 }
 
 void
-- 
2.30.2