Antonio Maiorano d388bc9b36 Restore "MSL writer: make signed int overflow defined behaviour"
This reverts commit e33b0baa088146fc06881387157a92e19fcf5b7b.

Added tests/expressions/literals/intmin.wgsl test.

Bug: tint:124
Change-Id: I3d46f939ff20fa377ddb5fcb52f9afe728b8e430
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60441
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
2021-07-30 18:59:06 +00:00

58 lines
1.4 KiB
Plaintext

#include <metal_stdlib>
using namespace metal;
struct doesNotMatter {
/* 0x0000 */ int global_seed;
/* 0x0004 */ int data[1];
};
struct buf1 {
/* 0x0000 */ packed_float2 injectionSwitch;
};
void main_1(constant buf1& x_10, device doesNotMatter& x_7, thread uint3* const tint_symbol_2) {
int lid = 0;
int val = 0;
int i = 0;
uint const x_40 = (*(tint_symbol_2)).x;
lid = as_type<int>(x_40);
int const x_43 = x_7.global_seed;
val = x_43;
i = 0;
while (true) {
int const x_48 = i;
if ((x_48 < 2)) {
} else {
break;
}
int const x_51 = lid;
if ((x_51 > 0)) {
int const x_55 = lid;
int const x_58 = x_7.data[as_type<int>((as_type<uint>(x_55) - as_type<uint>(1)))];
int const x_59 = val;
val = as_type<int>((as_type<uint>(x_59) + as_type<uint>(x_58)));
float const x_62 = x_10.injectionSwitch.x;
if ((x_62 > 100.0f)) {
break;
}
}
threadgroup_barrier(mem_flags::mem_threadgroup);
{
int const x_66 = i;
i = as_type<int>((as_type<uint>(x_66) + as_type<uint>(1)));
}
}
int const x_68 = lid;
if ((x_68 == 0)) {
x_7.data[0] = 42;
}
return;
}
kernel void tint_symbol(uint3 gl_LocalInvocationID_param [[thread_position_in_threadgroup]], constant buf1& x_10 [[buffer(1)]], device doesNotMatter& x_7 [[buffer(0)]]) {
thread uint3 tint_symbol_3 = 0u;
tint_symbol_3 = gl_LocalInvocationID_param;
main_1(x_10, x_7, &(tint_symbol_3));
return;
}