dawn-cmake/test/tint/statements/compound_assign/vector/divide.wgsl.expected.glsl
Ben Clayton 51be3420b8 tint/writer/glsl: Fix emission of lowest i32 value
GLSL has the same behavior as MSL, in that -2147483648 is parsed as
a unary minus on '2147483648'. 2147483648 overflows an i32, so this
actually gets treated as -0.

Change-Id: Ibebd8b78a8840f18c438ed1d3d24dee486a65816
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/123202
Reviewed-by: Stephen White <senorblanco@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
Kokoro: Kokoro <noreply+kokoro@google.com>
2023-03-08 21:13:22 +00:00

23 lines
482 B
GLSL

#version 310 es
layout(local_size_x = 1, local_size_y = 1, local_size_z = 1) in;
void unused_entry_point() {
return;
}
struct S {
ivec4 a;
};
layout(binding = 0, std430) buffer v_block_ssbo {
S inner;
} v;
ivec4 tint_div(ivec4 lhs, ivec4 rhs) {
return (lhs / mix(rhs, ivec4(1), bvec4(uvec4(equal(rhs, ivec4(0))) | uvec4(bvec4(uvec4(equal(lhs, ivec4((-2147483647 - 1)))) & uvec4(equal(rhs, ivec4(-1))))))));
}
void foo() {
v.inner.a = tint_div(v.inner.a, ivec4(2));
}