i965/fs: Don't consider LOAD_PAYLOAD with sub-GRF offset to behave like a raw copy.

This was likely the original intention, and at least register coalesce
relies on it.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index 375d73be5e91d3f5e6ece3282227ed7f03a6d3a0..c10579880b6161fa0a4c80f734d5ca43a0a67f60 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -353,7 +353,7 @@ fs_inst::is_copy_payload(const brw::simple_allocator &grf_alloc) const
       return false;
 
    fs_reg reg = this->src[0];
-   if (reg.file != VGRF || reg.offset / REG_SIZE != 0 || reg.stride == 0)
+   if (reg.file != VGRF || reg.offset != 0 || reg.stride == 0)
       return false;
 
    if (grf_alloc.sizes[reg.nr] * REG_SIZE != this->size_written)