tint/transform: Implement div / mod polyfill

Prevents UB for divide-by-zero and integer overflow when dividing

Fixed: tint:1349
Change-Id: Ieef66d27d7aec3011628ced076b2bccc7770a8af
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/108925
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Dan Sinclair <dsinclair@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
This commit is contained in:
Ben Clayton
2022-11-09 22:04:11 +00:00
committed by Dawn LUCI CQ
parent 9418152d08
commit 46ee63933c
427 changed files with 7255 additions and 3789 deletions

View File

@@ -1,9 +1,13 @@
#version 310 es
uint tint_div(uint lhs, uint rhs) {
return (lhs / ((rhs == 0u) ? 1u : rhs));
}
void f() {
uint a = 1u;
uint b = 2u;
uint r = (a / b);
uint r = tint_div(a, b);
}
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;