Mesa (master): i965: Respect stride and subreg_offset for ATTR registers
Kristian Høgsberg
krh at kemper.freedesktop.org
Thu Sep 24 17:39:32 UTC 2015
Module: Mesa
Branch: master
Commit: 2ea16966ae66d4dd5c5dcb996d7996d9c734bbee
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2ea16966ae66d4dd5c5dcb996d7996d9c734bbee
Author: Kristian Høgsberg Kristensen <krh at bitplanet.net>
Date: Wed Sep 23 16:57:47 2015 -0700
i965: Respect stride and subreg_offset for ATTR registers
When we assign hw regs to attributes, we don't incorporate the stride
and subreg_offset from the fs_reg. It's rarely used, but the integer
multiplication lowering uses unusual stride and subreg_offset
combination breaks when one source is an attribute.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91970
Cc: "10.6 11.0" <mesa-stable at lists.freedesktop.org>
Signed-off-by: Kristian Høgsberg Kristensen <krh at bitplanet.net>
Reviewed-by: Matt Turner <mattst88 at gmail.com>
---
src/mesa/drivers/dri/i965/brw_fs.cpp | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 225a312..618bbd2 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1564,7 +1564,10 @@ fs_visitor::assign_vs_urb_setup()
inst->src[i].file = HW_REG;
inst->src[i].fixed_hw_reg =
- retype(brw_vec8_grf(grf, 0), inst->src[i].type);
+ stride(byte_offset(retype(brw_vec8_grf(grf, 0), inst->src[i].type),
+ inst->src[i].subreg_offset),
+ inst->exec_size * inst->src[i].stride,
+ inst->exec_size, inst->src[i].stride);
}
}
}
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