Mesa (master): nvc0/ir: set ftz when sources are floats, not just destinations
Ilia Mirkin
imirkin at kemper.freedesktop.org
Sat May 23 00:16:54 UTC 2015
Module: Mesa
Branch: master
Commit: d1eea18a595a468dbc2267a8d14197a3b1a5a4b6
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=d1eea18a595a468dbc2267a8d14197a3b1a5a4b6
Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date: Fri May 22 16:40:08 2015 -0400
nvc0/ir: set ftz when sources are floats, not just destinations
In the case of a compare, the destination might be a predicate, but we
still want to flush denorms.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: "10.5 10.6" <mesa-stable at lists.freedesktop.org>
---
src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
index b61f3c4..6d45e22 100644
--- a/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
+++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_lowering_nvc0.cpp
@@ -100,8 +100,7 @@ void
NVC0LegalizeSSA::handleFTZ(Instruction *i)
{
// Only want to flush float inputs
- if (i->sType != TYPE_F32)
- return;
+ assert(i->sType == TYPE_F32);
// If we're already flushing denorms (and NaN's) to zero, no need for this.
if (i->dnz)
@@ -129,7 +128,7 @@ NVC0LegalizeSSA::visit(BasicBlock *bb)
Instruction *next;
for (Instruction *i = bb->getEntry(); i; i = next) {
next = i->next;
- if (i->dType == TYPE_F32) {
+ if (i->sType == TYPE_F32) {
if (prog->getType() != Program::TYPE_COMPUTE)
handleFTZ(i);
continue;
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