Mesa (master): nv50/ir: keep track of whether the program uses fp64

[Ilia Mirkin]

Module: Mesa
Branch: master
Commit: b21a28797c23fc49a23fd48386f5932f0fb6d874
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b21a28797c23fc49a23fd48386f5932f0fb6d874

Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date:   Thu Jul 17 22:30:00 2014 -0400

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

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

---

 src/gallium/drivers/nouveau/codegen/nv50_ir_driver.h   |    1 +
 src/gallium/drivers/nouveau/codegen/nv50_ir_target.cpp |    8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

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
--- 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
--- 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();