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i965: Respect stride and subreg_offset for ATTR registers

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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@lists.freedesktop.org>
Signed-off-by: Kristian Høgsberg Kristensen <krh@bitplanet.net>
Reviewed-by: Matt Turner <mattst88@gmail.com>
(cherry picked from commit 2ea16966ae)
This commit is contained in:
Kristian Høgsberg Kristensen 2015-09-23 16:57:47 -07:00 • committed by Emil Velikov
parent 7f1a77ae66
commit dace17bfd4
1 changed files with 4 additions and 1 deletions
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5
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -1556,7 +1556,10 @@ 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);
}
}
}