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i965/fs: Simplify FS_OPCODE_SET_SAMPLE_ID stride mashing a bit.

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stride(brw_vec1_reg(...) ...) takes some register, changes the strides,
then changes the strides again.  Let's do it once.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Kenneth Graunke 2014-02-10 14:46:49 -08:00
parent 08fd34c8a3
commit f948ad2a07
1 changed files with 1 additions and 2 deletions
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src/mesa/drivers/dri/i965/brw_fs_generator.cpp
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@ -1156,8 +1156,7 @@ fs_generator::generate_set_sample_id(fs_inst *inst,
brw_push_insn_state(p);
brw_set_compression_control(p, BRW_COMPRESSION_NONE);
brw_set_mask_control(p, BRW_MASK_DISABLE);
struct brw_reg reg = stride(retype(brw_vec1_reg(src1.file, src1.nr, 0),
BRW_REGISTER_TYPE_UW), 1, 4, 0);
struct brw_reg reg = retype(stride(src1, 1, 4, 0), BRW_REGISTER_TYPE_UW);
brw_ADD(p, dst, src0, reg);
if (dispatch_width == 16)
brw_ADD(p, offset(dst, 1), offset(src0, 1), suboffset(reg, 2));