tree 09cd5335def07aef29e1736b416de9ef9909c062
parent 046c2b7c4c71cc1926bfacf603f5355aa15fe5c8
author David Neto <dneto@google.com> 1591899075 +0000
committer dan sinclair <dsinclair@google.com> 1591899075 +0000

[spirv-reader] Simplify if-selection bookkeeping

In BlockInfo, remove the backpointers from true-head, false-head, and
premerge-head to the if-selection header block.

Convert the forward references from if-selection to its internal heads
from pointers to IDs.

Bug: tint:3
Change-Id: Ic931df519795e14374bff4f60ad37a4b32f79c91
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/23140
Reviewed-by: dan sinclair <dsinclair@google.com>