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

80 lines
1.8 KiB
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#include <metal_stdlib>
using namespace metal;
struct buf0 {
/* 0x0000 */ packed_float2 injectionSwitch;
};
struct StructType {
float3 col;
bool4 bbbb;
};
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_5, thread float4* const tint_symbol_5) {
StructType x_33 = {};
int x_38 = 0;
StructType x_42 = {};
StructType x_33_phi = {};
int x_9_phi = 0;
StructType x_42_phi = {};
int x_10_phi = 0;
StructType const tint_symbol_3 = {.col=float3(0.0f, 0.0f, 0.0f), .bbbb=bool4(false, false, false, false)};
x_33_phi = tint_symbol_3;
x_9_phi = 0;
while (true) {
StructType x_34 = {};
int x_7 = 0;
x_33 = x_33_phi;
int const x_9 = x_9_phi;
float const x_37 = x_5.injectionSwitch.y;
x_38 = int(x_37);
if ((x_9 < x_38)) {
} else {
break;
}
{
x_34 = x_33;
x_34.col = float3(1.0f, 0.0f, 0.0f);
x_7 = as_type<int>((as_type<uint>(x_9) + as_type<uint>(1)));
x_33_phi = x_34;
x_9_phi = x_7;
}
}
x_42_phi = x_33;
x_10_phi = 0;
while (true) {
StructType x_43 = {};
int x_8 = 0;
x_42 = x_42_phi;
int const x_10 = x_10_phi;
if ((x_10 < x_38)) {
} else {
break;
}
{
x_43 = x_42;
x_43.col = float3(1.0f, 0.0f, 0.0f);
x_8 = as_type<int>((as_type<uint>(x_10) + as_type<uint>(1)));
x_42_phi = x_43;
x_10_phi = x_8;
}
}
float3 const x_47 = x_42.col;
*(tint_symbol_5) = float4(x_47.x, x_47.y, x_47.z, 1.0f);
return;
}
fragment tint_symbol_1 tint_symbol(constant buf0& x_5 [[buffer(0)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_1(x_5, &(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;
}