Mesa (8.0): i965/fs: Add a new fs_inst::regs_written function.
Kenneth Graunke
kwg at kemper.freedesktop.org
Thu Feb 16 01:21:45 UTC 2012
Module: Mesa
Branch: 8.0
Commit: 740123fff754fac9da3e9807e2fcd05d66690866
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=740123fff754fac9da3e9807e2fcd05d66690866
Author: Kenneth Graunke <kenneth at whitecape.org>
Date: Tue Feb 14 12:43:21 2012 -0800
i965/fs: Add a new fs_inst::regs_written function.
Certain instructions write more than one register. Texturing, for
example, returns 4 registers. (We set rlen to 4 even for TXS and float
shadow sampling.) Some math functions return 2. Most return 1.
The next commit introduces a use of this function.
Reviewed-by: Eric Anholt <eric at anholt.net>
Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
(cherry picked from commit 8ab02b511882857a09fceed0e93bf4a0b25c17b2)
---
src/mesa/drivers/dri/i965/brw_fs.h | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.h b/src/mesa/drivers/dri/i965/brw_fs.h
index 5fdc055..9a2cc08 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_fs.h
@@ -286,6 +286,18 @@ public:
offset == inst->offset);
}
+ int regs_written()
+ {
+ if (is_tex())
+ return 4;
+
+ /* The SINCOS and INT_DIV_QUOTIENT_AND_REMAINDER math functions return 2,
+ * but we don't currently use them...nor do we have an opcode for them.
+ */
+
+ return 1;
+ }
+
bool is_tex()
{
return (opcode == SHADER_OPCODE_TEX ||
More information about the mesa-commit
mailing list