Module: Mesa
Branch: master
Commit: 8c02ee4a8b0bea5dda3ced341dce81f340457c95
URL:    
http://cgit.freedesktop.org/mesa/mesa/commit/?id=8c02ee4a8b0bea5dda3ced341dce81f340457c95

Author: Ilia Mirkin <[email protected]>
Date:   Sat Jun 24 12:08:52 2017 -0400

nv50/ir: fetch indirect sources BEFORE the op that uses them

All the BuildUtil helpers just insert the operation into the current BB.
So we have to take care that any fetchSrc() operations happen before the
operation whose setIndirect() it goes into.

Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>
Cc: [email protected]

---

 .../drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp  | 51 ++++++++++++++--------
 1 file changed, 32 insertions(+), 19 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 1264dd4834..7bae9e5cac 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -2632,6 +2632,10 @@ Converter::handleLOAD(Value *dst0[4])
    const int r = tgsi.getSrc(0).getIndex(0);
    int c;
    std::vector<Value *> off, src, ldv, def;
+   Value *ind = NULL;
+
+   if (tgsi.getSrc(0).isIndirect(0))
+      ind = fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 0);
 
    switch (tgsi.getSrc(0).getFile()) {
    case TGSI_FILE_BUFFER:
@@ -2658,8 +2662,8 @@ Converter::handleLOAD(Value *dst0[4])
 
          Instruction *ld = mkLoad(TYPE_U32, dst0[c], sym, off);
          ld->cache = tgsi.getCacheMode();
-         if (tgsi.getSrc(0).isIndirect(0))
-            ld->setIndirect(0, 1, fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 
0));
+         if (ind)
+            ld->setIndirect(0, 1, ind);
       }
       break;
    case TGSI_FILE_IMAGE: {
@@ -2681,8 +2685,8 @@ Converter::handleLOAD(Value *dst0[4])
       ld->tex.mask = tgsi.getDst(0).getMask();
       ld->tex.format = getImageFormat(code, r);
       ld->cache = tgsi.getCacheMode();
-      if (tgsi.getSrc(0).isIndirect(0))
-         ld->setIndirectR(fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, NULL));
+      if (ind)
+         ld->setIndirectR(ind);
 
       FOR_EACH_DST_ENABLED_CHANNEL(0, c, tgsi)
          if (dst0[c] != def[c])
@@ -2770,6 +2774,10 @@ Converter::handleSTORE()
    const int r = tgsi.getDst(0).getIndex(0);
    int c;
    std::vector<Value *> off, src, dummy;
+   Value *ind = NULL;
+
+   if (tgsi.getDst(0).isIndirect(0))
+      ind = fetchSrc(tgsi.getDst(0).getIndirect(0), 0, 0);
 
    switch (tgsi.getDst(0).getFile()) {
    case TGSI_FILE_BUFFER:
@@ -2792,8 +2800,8 @@ Converter::handleSTORE()
 
          Instruction *st = mkStore(OP_STORE, TYPE_U32, sym, off, fetchSrc(1, 
c));
          st->cache = tgsi.getCacheMode();
-         if (tgsi.getDst(0).isIndirect(0))
-            st->setIndirect(0, 1, fetchSrc(tgsi.getDst(0).getIndirect(0), 0, 
0));
+         if (ind)
+            st->setIndirect(0, 1, ind);
       }
       break;
    case TGSI_FILE_IMAGE: {
@@ -2811,8 +2819,8 @@ Converter::handleSTORE()
       st->tex.mask = tgsi.getDst(0).getMask();
       st->tex.format = getImageFormat(code, r);
       st->cache = tgsi.getCacheMode();
-      if (tgsi.getDst(0).isIndirect(0))
-         st->setIndirectR(fetchSrc(tgsi.getDst(0).getIndirect(0), 0, NULL));
+      if (ind)
+         st->setIndirectR(ind);
       }
       break;
    default:
@@ -2881,6 +2889,10 @@ Converter::handleATOM(Value *dst0[4], DataType ty, 
uint16_t subOp)
    std::vector<Value *> srcv;
    std::vector<Value *> defv;
    LValue *dst = getScratch();
+   Value *ind = NULL;
+
+   if (tgsi.getSrc(0).isIndirect(0))
+      ind = fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 0);
 
    switch (tgsi.getSrc(0).getFile()) {
    case TGSI_FILE_BUFFER:
@@ -2890,23 +2902,21 @@ Converter::handleATOM(Value *dst0[4], DataType ty, 
uint16_t subOp)
             continue;
 
          Instruction *insn;
-         Value *off = fetchSrc(1, c), *off2 = NULL;
+         Value *off = fetchSrc(1, c);
          Value *sym;
          if (tgsi.getSrc(1).getFile() == TGSI_FILE_IMMEDIATE)
             sym = makeSym(tgsi.getSrc(0).getFile(), r, -1, c,
                           tgsi.getSrc(1).getValueU32(c, info));
          else
             sym = makeSym(tgsi.getSrc(0).getFile(), r, -1, c, 0);
-         if (tgsi.getSrc(0).isIndirect(0))
-            off2 = fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 0);
          if (subOp == NV50_IR_SUBOP_ATOM_CAS)
             insn = mkOp3(OP_ATOM, ty, dst, sym, fetchSrc(2, c), fetchSrc(3, 
c));
          else
             insn = mkOp2(OP_ATOM, ty, dst, sym, fetchSrc(2, c));
          if (tgsi.getSrc(1).getFile() != TGSI_FILE_IMMEDIATE)
             insn->setIndirect(0, 0, off);
-         if (off2)
-            insn->setIndirect(0, 1, off2);
+         if (ind)
+            insn->setIndirect(0, 1, ind);
          insn->subOp = subOp;
       }
       for (int c = 0; c < 4; ++c)
@@ -2929,8 +2939,8 @@ Converter::handleATOM(Value *dst0[4], DataType ty, 
uint16_t subOp)
       tex->tex.mask = 1;
       tex->tex.format = getImageFormat(code, r);
       tex->setType(ty);
-      if (tgsi.getSrc(0).isIndirect(0))
-         tex->setIndirectR(fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, NULL));
+      if (ind)
+         tex->setIndirectR(ind);
 
       for (int c = 0; c < 4; ++c)
          if (dst0[c])
@@ -3802,12 +3812,14 @@ Converter::handleInstruction(const struct 
tgsi_full_instruction *insn)
       break;
    case TGSI_OPCODE_RESQ:
       if (tgsi.getSrc(0).getFile() == TGSI_FILE_BUFFER) {
+         Value *ind = NULL;
+         if (tgsi.getSrc(0).isIndirect(0))
+            ind = fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 0);
          geni = mkOp1(OP_BUFQ, TYPE_U32, dst0[0],
                       makeSym(tgsi.getSrc(0).getFile(),
                               tgsi.getSrc(0).getIndex(0), -1, 0, 0));
-         if (tgsi.getSrc(0).isIndirect(0))
-            geni->setIndirect(0, 1,
-                              fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 0));
+         if (ind)
+            geni->setIndirect(0, 1, ind);
       } else {
          assert(tgsi.getSrc(0).getFile() == TGSI_FILE_IMAGE);
 
@@ -3820,10 +3832,11 @@ Converter::handleInstruction(const struct 
tgsi_full_instruction *insn)
          }
          texi->tex.r = tgsi.getSrc(0).getIndex(0);
          texi->tex.target = getImageTarget(code, texi->tex.r);
-         bb->insertTail(texi);
 
          if (tgsi.getSrc(0).isIndirect(0))
             texi->setIndirectR(fetchSrc(tgsi.getSrc(0).getIndirect(0), 0, 
NULL));
+
+         bb->insertTail(texi);
       }
       break;
    case TGSI_OPCODE_IBFE:

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