nv50/ir: keep track of whether the program uses fp64

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h b/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
index dc74cde..dba56bf 100644 (file)
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h
@@ -183,6 +183,7 @@ struct nv50_ir_prog_info
       boolean sampleInterp;      /* perform sample interp on all fp inputs */
       uint8_t backFaceColor[2];  /* input/output indices of back face colour */
       uint8_t globalAccess;      /* 1 for read, 2 for wr, 3 for rw */
+      boolean fp64;              /* program uses fp64 math */
       boolean nv50styleSurfaces; /* generate gX[] access for raw buffers */
       uint8_t resInfoCBSlot;     /* cX[] used for tex handles, surface info */
       uint16_t texBindBase;      /* base address for tex handles (nve4) */

diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_target.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_target.cpp
index 0397bdc..7992f53 100644 (file)
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target.cpp
@@ -379,9 +379,13 @@ Program::emitBinary(struct nv50_ir_prog_info *info)
 
       assert(emit->getCodeSize() == fn->binPos);
 
-      for (int b = 0; b < fn->bbCount; ++b)
-         for (Instruction *i = fn->bbArray[b]->getEntry(); i; i = i->next)
+      for (int b = 0; b < fn->bbCount; ++b) {
+         for (Instruction *i = fn->bbArray[b]->getEntry(); i; i = i->next) {
             emit->emitInstruction(i);
+            if (i->sType == TYPE_F64 || i->dType == TYPE_F64)
+               info->io.fp64 = true;
+         }
+      }
    }
    info->bin.relocData = emit->getRelocInfo();