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nir/i965: assert first is always less than 64

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This fixes a defect detected by Coverity Scan.

Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Juan A. Suarez Romero 2017-01-12 10:31:34 +01:00
parent f0997e2aa8
commit ce44501ea8
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_draw_upload.c
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@ -566,6 +566,7 @@ brw_prepare_vertices(struct brw_context *brw)
brw->vb.nr_enabled = 0;
while (vs_inputs) {
GLuint first = ffsll(vs_inputs) - 1;
assert (first < 64);
GLuint index =
first - DIV_ROUND_UP(_mesa_bitcount_64(vs_prog_data->double_inputs_read &
BITFIELD64_MASK(first)), 2);