Corentin Wallez e33b0baa08 Revert "MSL writer: make signed int overflow defined behaviour"
This reverts commit e5dbe24e942a32d4077a352b2634ef9acbbb669d.

Reason for revert: Makes the Tint-Dawn roll fails because of
MSL compilation errors on as_type<uint>(-2147483648):
as_type cast from 'long' to 'uint' (aka 'unsigned int') is not allowed
   
as_type<uint>(-2147483647) compiles fine, so this is most
likely because the MSL compiler types the literal as a long
(since without the - it is larger than the max int32).

Original change's description:
> MSL writer: make signed int overflow defined behaviour
>
> Bug: tint:124
> Change-Id: Icf545b633d6390ceb7f639e80111390005e311a1
> Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60100
> Kokoro: Kokoro <noreply+kokoro@google.com>
> Commit-Queue: Antonio Maiorano <amaiorano@google.com>
> Reviewed-by: David Neto <dneto@google.com>

TBR=dneto@google.com,bclayton@google.com,jrprice@google.com,amaiorano@google.com,noreply+kokoro@google.com,tint-scoped@luci-project-accounts.iam.gserviceaccount.com

Change-Id: I3e3384a9185013bb141a1b7b9b22bad8571bbc50
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: tint:124
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/60345
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Ben Clayton <bclayton@google.com>
Auto-Submit: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
2021-07-30 08:22:58 +00:00

90 lines
2.9 KiB
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#include <metal_stdlib>
using namespace metal;
struct tint_padded_array_element {
/* 0x0000 */ float el;
/* 0x0004 */ int8_t tint_pad[12];
};
struct tint_array_wrapper {
/* 0x0000 */ tint_padded_array_element arr[2];
};
struct buf0 {
/* 0x0000 */ tint_array_wrapper x_GLF_uniform_float_values;
};
struct tint_padded_array_element_1 {
/* 0x0000 */ int el;
/* 0x0004 */ int8_t tint_pad_1[12];
};
struct tint_array_wrapper_1 {
/* 0x0000 */ tint_padded_array_element_1 arr[3];
};
struct buf1 {
/* 0x0000 */ tint_array_wrapper_1 x_GLF_uniform_int_values;
};
struct tint_array_wrapper_2 {
float arr[3];
};
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_6, constant buf1& x_9, thread float4* const tint_symbol_5) {
tint_array_wrapper_2 sums = {};
int i = 0;
float2x4 indexable = float2x4(0.0f);
float const x_40 = x_6.x_GLF_uniform_float_values.arr[0].el;
float const x_42 = x_6.x_GLF_uniform_float_values.arr[0].el;
float const x_44 = x_6.x_GLF_uniform_float_values.arr[0].el;
tint_array_wrapper_2 const tint_symbol_3 = {.arr={x_40, x_42, x_44}};
sums = tint_symbol_3;
i = 0;
while (true) {
int const x_50 = i;
int const x_52 = x_9.x_GLF_uniform_int_values.arr[0].el;
int const x_54 = x_9.x_GLF_uniform_int_values.arr[0].el;
if ((x_50 < clamp(x_52, x_54, 2))) {
} else {
break;
}
int const x_59 = x_9.x_GLF_uniform_int_values.arr[2].el;
float const x_61 = x_6.x_GLF_uniform_float_values.arr[0].el;
int const x_65 = i;
int const x_67 = x_9.x_GLF_uniform_int_values.arr[1].el;
indexable = float2x4(float4(x_61, 0.0f, 0.0f, 0.0f), float4(0.0f, x_61, 0.0f, 0.0f));
float const x_69 = indexable[x_65][x_67];
float const x_71 = sums.arr[x_59];
sums.arr[x_59] = (x_71 + x_69);
{
int const x_74 = i;
i = (x_74 + 1);
}
}
int const x_77 = x_9.x_GLF_uniform_int_values.arr[2].el;
float const x_79 = sums.arr[x_77];
float const x_81 = x_6.x_GLF_uniform_float_values.arr[1].el;
if ((x_79 == x_81)) {
int const x_87 = x_9.x_GLF_uniform_int_values.arr[0].el;
int const x_90 = x_9.x_GLF_uniform_int_values.arr[1].el;
int const x_93 = x_9.x_GLF_uniform_int_values.arr[1].el;
int const x_96 = x_9.x_GLF_uniform_int_values.arr[0].el;
*(tint_symbol_5) = float4(float(x_87), float(x_90), float(x_93), float(x_96));
} else {
int const x_100 = x_9.x_GLF_uniform_int_values.arr[1].el;
float const x_101 = float(x_100);
*(tint_symbol_5) = float4(x_101, x_101, x_101, x_101);
}
return;
}
fragment tint_symbol_1 tint_symbol(constant buf0& x_6 [[buffer(0)]], constant buf1& x_9 [[buffer(1)]]) {
thread float4 tint_symbol_6 = 0.0f;
main_1(x_6, x_9, &(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;
}