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Reland "HLSL: force FXC to never unroll loops"

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Now that I've landed this change to Dawn to disable FXC optimizations:
https://dawn-review.googlesource.com/c/dawn/+/70700,, we can reland this
change. The Tint-into-Dawn roll was failing because FXC would miscompile
certain loops into infinite loops when not unrolled.

Also reland
test/bug/fxc/gradient_in_varying_loop/1112.wgsl.expected.hlsl

Bug: tint:1112
Bug: dawn:1203
Change-Id: I641d68864b833e0fbe3b117d397b89ae96482536
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/71000
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>
This commit is contained in:
Antonio Maiorano
2021-11-25 18:44:50 +00:00
committed by Tint LUCI CQ
parent 91785d277b
commit e2528e9297
50 changed files with 118 additions and 111 deletions
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4
test/array/assign_to_function_var.wgsl.expected.hlsl
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@@ -32,7 +32,7 @@ typedef tint_padded_array_element tint_symbol_1_ret[4];
tint_symbol_1_ret tint_symbol_1(uint4 buffer[4], uint offset) {
tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
{
for(uint i = 0u; (i < 4u); i = (i + 1u)) {
[loop] for(uint i = 0u; (i < 4u); i = (i + 1u)) {
const uint scalar_offset = ((offset + (i * 16u))) / 4;
arr_1[i].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
}
@@ -44,7 +44,7 @@ typedef tint_padded_array_element tint_symbol_3_ret[4];
tint_symbol_3_ret tint_symbol_3(RWByteAddressBuffer buffer, uint offset) {
tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
{
for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
[loop] for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
arr_2[i_1].el = asint(buffer.Load((offset + (i_1 * 16u))));
}
}

4
test/array/assign_to_private_var.wgsl.expected.hlsl
View File

@@ -34,7 +34,7 @@ typedef tint_padded_array_element tint_symbol_1_ret[4];
tint_symbol_1_ret tint_symbol_1(uint4 buffer[4], uint offset) {
tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
{
for(uint i = 0u; (i < 4u); i = (i + 1u)) {
[loop] for(uint i = 0u; (i < 4u); i = (i + 1u)) {
const uint scalar_offset = ((offset + (i * 16u))) / 4;
arr_1[i].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
}
@@ -46,7 +46,7 @@ typedef tint_padded_array_element tint_symbol_3_ret[4];
tint_symbol_3_ret tint_symbol_3(RWByteAddressBuffer buffer, uint offset) {
tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
{
for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
[loop] for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
arr_2[i_1].el = asint(buffer.Load((offset + (i_1 * 16u))));
}
}

12
test/array/assign_to_storage_var.wgsl.expected.hlsl
View File

@@ -33,7 +33,7 @@ S ret_struct_arr() {
void tint_symbol_1(RWByteAddressBuffer buffer, uint offset, tint_padded_array_element value[4]) {
tint_padded_array_element array[4] = value;
{
for(uint i = 0u; (i < 4u); i = (i + 1u)) {
[loop] for(uint i = 0u; (i < 4u); i = (i + 1u)) {
buffer.Store((offset + (i * 16u)), asuint(array[i].el));
}
}
@@ -43,7 +43,7 @@ typedef tint_padded_array_element tint_symbol_3_ret[4];
tint_symbol_3_ret tint_symbol_3(uint4 buffer[4], uint offset) {
tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
{
for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
[loop] for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
const uint scalar_offset = ((offset + (i_1 * 16u))) / 4;
arr_1[i_1].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
}
@@ -55,7 +55,7 @@ typedef tint_padded_array_element tint_symbol_5_ret[4];
tint_symbol_5_ret tint_symbol_5(RWByteAddressBuffer buffer, uint offset) {
tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
{
for(uint i_2 = 0u; (i_2 < 4u); i_2 = (i_2 + 1u)) {
[loop] for(uint i_2 = 0u; (i_2 < 4u); i_2 = (i_2 + 1u)) {
arr_2[i_2].el = asint(buffer.Load((offset + (i_2 * 16u))));
}
}
@@ -65,7 +65,7 @@ tint_symbol_5_ret tint_symbol_5(RWByteAddressBuffer buffer, uint offset) {
void tint_symbol_9(RWByteAddressBuffer buffer, uint offset, int value[2]) {
int array_3[2] = value;
{
for(uint i_3 = 0u; (i_3 < 2u); i_3 = (i_3 + 1u)) {
[loop] for(uint i_3 = 0u; (i_3 < 2u); i_3 = (i_3 + 1u)) {
buffer.Store((offset + (i_3 * 4u)), asuint(array_3[i_3]));
}
}
@@ -74,7 +74,7 @@ void tint_symbol_9(RWByteAddressBuffer buffer, uint offset, int value[2]) {
void tint_symbol_8(RWByteAddressBuffer buffer, uint offset, int value[3][2]) {
int array_2[3][2] = value;
{
for(uint i_4 = 0u; (i_4 < 3u); i_4 = (i_4 + 1u)) {
[loop] for(uint i_4 = 0u; (i_4 < 3u); i_4 = (i_4 + 1u)) {
tint_symbol_9(buffer, (offset + (i_4 * 8u)), array_2[i_4]);
}
}
@@ -83,7 +83,7 @@ void tint_symbol_8(RWByteAddressBuffer buffer, uint offset, int value[3][2]) {
void tint_symbol_7(RWByteAddressBuffer buffer, uint offset, int value[4][3][2]) {
int array_1[4][3][2] = value;
{
for(uint i_5 = 0u; (i_5 < 4u); i_5 = (i_5 + 1u)) {
[loop] for(uint i_5 = 0u; (i_5 < 4u); i_5 = (i_5 + 1u)) {
tint_symbol_8(buffer, (offset + (i_5 * 24u)), array_1[i_5]);
}
}

4
test/array/assign_to_workgroup_var.wgsl.expected.hlsl
View File

@@ -34,7 +34,7 @@ typedef tint_padded_array_element tint_symbol_1_ret[4];
tint_symbol_1_ret tint_symbol_1(uint4 buffer[4], uint offset) {
tint_padded_array_element arr_1[4] = (tint_padded_array_element[4])0;
{
for(uint i = 0u; (i < 4u); i = (i + 1u)) {
[loop] for(uint i = 0u; (i < 4u); i = (i + 1u)) {
const uint scalar_offset = ((offset + (i * 16u))) / 4;
arr_1[i].el = asint(buffer[scalar_offset / 4][scalar_offset % 4]);
}
@@ -46,7 +46,7 @@ typedef tint_padded_array_element tint_symbol_3_ret[4];
tint_symbol_3_ret tint_symbol_3(RWByteAddressBuffer buffer, uint offset) {
tint_padded_array_element arr_2[4] = (tint_padded_array_element[4])0;
{
for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
[loop] for(uint i_1 = 0u; (i_1 < 4u); i_1 = (i_1 + 1u)) {
arr_2[i_1].el = asint(buffer.Load((offset + (i_1 * 16u))));
}
}