Module: Mesa
Branch: master
Commit: 20d0297ff2d507aab42e59ebfde375d5205642cb
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=20d0297ff2d507aab42e59ebfde375d5205642cb
Author: Matt Turner <matts...@gmail.com>
Date: Sun Oct 20 11:32:01 2013 -0700
i965/fs: Add reads_flag() and writes_flag() to fs_inst.
Reviewed-by: Eric Anholt <e...@anholt.net>
Reviewed-by: Paul Berry <stereotype...@gmail.com>
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 13 +++++++++++++
src/mesa/drivers/dri/i965/brw_fs.h | 3 +++
2 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp
b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 69340f0..236e86c 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -732,6 +732,19 @@ fs_inst::regs_read(fs_visitor *v, int arg)
return 1;
}
+bool
+fs_inst::reads_flag()
+{
+ return predicate;
+}
+
+bool
+fs_inst::writes_flag()
+{
+ return (conditional_mod && opcode != BRW_OPCODE_SEL) ||
+ opcode == FS_OPCODE_MOV_DISPATCH_TO_FLAGS;
+}
+
/**
* Returns how many MRFs an FS opcode will write over.
*
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h
b/src/mesa/drivers/dri/i965/brw_fs.h
index c9b0aa1..43e4761 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -151,6 +151,9 @@ public:
bool is_partial_write();
int regs_read(fs_visitor *v, int arg);
+ bool reads_flag();
+ bool writes_flag();
+
fs_reg dst;
fs_reg src[3];
bool saturate;
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