mirror of
https://github.com/encounter/dawn-cmake.git
synced 2025-05-16 12:21:35 +00:00
46ee63933c
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>
20 lines
489 B
GLSL
20 lines
489 B
GLSL
#version 310 es
|
|
|
|
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
|
|
void unused_entry_point() {
|
|
return;
|
|
}
|
|
int tint_div(int lhs, int rhs) {
|
|
return (lhs / (bool(uint((rhs == 0)) | uint(bool(uint((lhs == -2147483648)) & uint((rhs == -1))))) ? 1 : rhs));
|
|
}
|
|
|
|
void foo() {
|
|
int a = 0;
|
|
vec4 b = vec4(0.0f, 0.0f, 0.0f, 0.0f);
|
|
mat2 c = mat2(0.0f, 0.0f, 0.0f, 0.0f);
|
|
a = tint_div(a, 2);
|
|
b = (b * mat4(vec4(0.0f), vec4(0.0f), vec4(0.0f), vec4(0.0f)));
|
|
c = (c * 2.0f);
|
|
}
|
|
|