tint/test-runner: Split expectations for FXC and DXC

Change tint's `--fxc` flag to take the path of the FXC compiler DLL.
Have tint attempt to validate with both FXC and DXC if `--validate` is
passed.

Fix the 'dirsWithNoPassExpectations' logic which looks like it got
broken with the tint -> dawn merge. It also incorrectly applied
filepath.FromSlash() on windows.

Change-Id: I0f46aa5c21bc48a2abc48402c41f846aff4a8633
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/96800
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>

test/tint/expressions/zero_init/array/bool.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  bool v[4] = (bool[4])0;
+}

test/tint/expressions/zero_init/array/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float v[4] = (float[4])0;
+}

test/tint/expressions/zero_init/array/i32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  int v[4] = (int[4])0;
+}

test/tint/expressions/zero_init/array/struct.wgsl.expected.fxc.hlsl

@@ -0,0 +1,15 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+struct S {
+  int i;
+  uint u;
+  float f;
+  bool b;
+};
+
+void f() {
+  S v[4] = (S[4])0;
+}

test/tint/expressions/zero_init/array/u32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  uint v[4] = (uint[4])0;
+}

test/tint/expressions/zero_init/mat2x2/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float2x2 v = float2x2((0.0f).xx, (0.0f).xx);
+}

test/tint/expressions/zero_init/mat2x3/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float2x3 v = float2x3((0.0f).xxx, (0.0f).xxx);
+}

test/tint/expressions/zero_init/mat2x4/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float2x4 v = float2x4((0.0f).xxxx, (0.0f).xxxx);
+}

test/tint/expressions/zero_init/mat3x2/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float3x2 v = float3x2((0.0f).xx, (0.0f).xx, (0.0f).xx);
+}

test/tint/expressions/zero_init/mat3x3/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float3x3 v = float3x3((0.0f).xxx, (0.0f).xxx, (0.0f).xxx);
+}

test/tint/expressions/zero_init/mat3x4/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float3x4 v = float3x4((0.0f).xxxx, (0.0f).xxxx, (0.0f).xxxx);
+}

test/tint/expressions/zero_init/mat4x2/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float4x2 v = float4x2((0.0f).xx, (0.0f).xx, (0.0f).xx, (0.0f).xx);
+}

test/tint/expressions/zero_init/mat4x3/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float4x3 v = float4x3((0.0f).xxx, (0.0f).xxx, (0.0f).xxx, (0.0f).xxx);
+}

test/tint/expressions/zero_init/mat4x4/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float4x4 v = float4x4((0.0f).xxxx, (0.0f).xxxx, (0.0f).xxxx, (0.0f).xxxx);
+}

test/tint/expressions/zero_init/scalar/bool.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  bool v = false;
+}

test/tint/expressions/zero_init/scalar/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float v = 0.0f;
+}

test/tint/expressions/zero_init/scalar/i32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  int v = 0;
+}

test/tint/expressions/zero_init/scalar/u32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  uint v = 0u;
+}

test/tint/expressions/zero_init/struct/array.wgsl.expected.fxc.hlsl

@@ -0,0 +1,12 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+struct S {
+  float a[4];
+};
+
+void f() {
+  S v = (S)0;
+}

test/tint/expressions/zero_init/struct/scalar.wgsl.expected.fxc.hlsl

@@ -0,0 +1,15 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+struct S {
+  int i;
+  uint u;
+  float f;
+  bool b;
+};
+
+void f() {
+  S v = (S)0;
+}

test/tint/expressions/zero_init/vec2/bool.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  bool2 v = (false).xx;
+}

test/tint/expressions/zero_init/vec2/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float2 v = (0.0f).xx;
+}

test/tint/expressions/zero_init/vec2/i32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  int2 v = (0).xx;
+}

test/tint/expressions/zero_init/vec2/u32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  uint2 v = (0u).xx;
+}

test/tint/expressions/zero_init/vec3/bool.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  bool3 v = (false).xxx;
+}

test/tint/expressions/zero_init/vec3/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float3 v = (0.0f).xxx;
+}

test/tint/expressions/zero_init/vec3/i32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  int3 v = (0).xxx;
+}

test/tint/expressions/zero_init/vec3/u32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  uint3 v = (0u).xxx;
+}

test/tint/expressions/zero_init/vec4/bool.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  bool4 v = (false).xxxx;
+}

test/tint/expressions/zero_init/vec4/f32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  float4 v = (0.0f).xxxx;
+}

test/tint/expressions/zero_init/vec4/i32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  int4 v = (0).xxxx;
+}

test/tint/expressions/zero_init/vec4/u32.wgsl.expected.fxc.hlsl

@@ -0,0 +1,8 @@
+[numthreads(1, 1, 1)]
+void unused_entry_point() {
+  return;
+}
+
+void f() {
+  uint4 v = (0u).xxxx;
+}