Previously we would just escape the loop and move everything
following the loop inside the if to the else branch of a new if
with a return flag conditional. However everything outside the
if the loop was nested in would still get executed.
Adding a new return to the then branch of the new if fixes this
and we just let a follow pass clean it up if needed.
Fixes:
tests/spec/glsl-1.10/execution/vs-nested-return-sibling-loop.shader_test
tests/spec/glsl-1.10/execution/vs-nested-return-sibling-loop2.shader_test
Cc: "13.0 17.0" <mesa-stable@lists.freedesktop.org>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
I do appreciate the cleverness, but unfortunately it prevents a lot more
cleverness in the form of additional compiler optimizations brought on
by -fstrict-aliasing.
No difference in OglBatch7 (n=20).
Co-authored-by: Davin McCall <davmac@davmac.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
