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

57 lines
1.3 KiB
Plaintext

#include <metal_stdlib>
using namespace metal;
struct S {
int f0;
bool3 f1;
};
struct buf0 {
/* 0x0000 */ packed_float2 injectionSwitch;
};
struct tint_array_wrapper {
float arr[9];
};
struct main_out {
float4 x_GLF_color_1;
};
struct tint_symbol_1 {
float4 x_GLF_color_1 [[color(0)]];
};
void main_1(constant buf0& x_7, thread float4* const tint_symbol_5) {
S ll = {};
tint_array_wrapper sums = {};
S const tint_symbol_3 = {.f0=0, .f1=bool3(true, true, true)};
ll = tint_symbol_3;
while (true) {
S const x_12 = ll;
float const x_45 = x_7.injectionSwitch.y;
if ((x_12.f0 != int(x_45))) {
} else {
break;
}
sums.arr[0] = 0.0f;
{
S const x_13 = ll;
S const x_50 = ll;
S x_51_1 = x_50;
x_51_1.f0 = as_type<int>((as_type<uint>(x_13.f0) + as_type<uint>(1)));
S const x_51 = x_51_1;
ll = x_51;
}
}
float const x_53 = sums.arr[0];
float2 const x_54 = float2(x_53, x_53);
*(tint_symbol_5) = float4(1.0f, x_54.x, x_54.y, 1.0f);
return;
}
fragment tint_symbol_1 tint_symbol(constant buf0& x_7 [[buffer(0)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_1(x_7, &(tint_symbol_6));
main_out const tint_symbol_2 = {.x_GLF_color_1=tint_symbol_6};
tint_symbol_1 const tint_symbol_4 = {.x_GLF_color_1=tint_symbol_2.x_GLF_color_1};
return tint_symbol_4;
}