Signed-off-by: Ilia Mirkin <imir...@alum.mit.edu>
---
src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 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 a95e8f3..4adedec 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp
@@ -1204,6 +1204,16 @@ bool Source::scanInstruction(const struct
tgsi_full_instruction *inst)
if (src.getIndex(0) == TGSI_RESOURCE_GLOBAL)
info->io.globalAccess |= (insn.getOpcode() == TGSI_OPCODE_LOAD) ?
0x1 : 0x2;
+ } else
+ if (src.getFile() == TGSI_FILE_OUTPUT) {
+ if (src.isIndirect(0)) {
+ // We don't know which one is accessed, just mark everything for
+ // reading. This is an extremely unlikely occurrence.
+ for (unsigned i = 0; i < info->numOutputs; ++i)
+ info->out[i].oread = 1;
+ } else {
+ info->out[src.getIndex(0)].oread = 1;
+ }
}
if (src.getFile() != TGSI_FILE_INPUT)
continue;
@@ -1606,8 +1616,8 @@ Converter::fetchSrc(tgsi::Instruction::SrcRegister src,
int c, Value *ptr)
ld->perPatch = info->in[idx].patch;
return ld->getDef(0);
case TGSI_FILE_OUTPUT:
- assert(!"load from output file");
- return NULL;
+ assert(prog->getType() == Program::TYPE_TESSELLATION_CONTROL);
+ return mkLoadv(TYPE_U32, srcToSym(src, c), ptr);
case TGSI_FILE_SYSTEM_VALUE:
assert(!ptr);
return mkOp1v(OP_RDSV, TYPE_U32, getSSA(), srcToSym(src, c));
--
2.3.6
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