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-rw-r--r--src/mesa/drivers/dri/i965/brw_ir_fs.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_ir_fs.h b/src/mesa/drivers/dri/i965/brw_ir_fs.h
index 305d91cd4c2..3d47b0c34e4 100644
--- a/src/mesa/drivers/dri/i965/brw_ir_fs.h
+++ b/src/mesa/drivers/dri/i965/brw_ir_fs.h
@@ -128,11 +128,14 @@ horiz_offset(fs_reg reg, unsigned delta)
return reg;
}
+/**
+ * Get the scalar channel of \p reg given by \p idx and replicate it to all
+ * channels of the result.
+ */
static inline fs_reg
component(fs_reg reg, unsigned idx)
{
- assert(reg.subreg_offset == 0);
- reg.subreg_offset = idx * type_sz(reg.type);
+ reg = horiz_offset(reg, idx);
reg.stride = 0;
return reg;
}