diff --git a/test/tint/builtins/gen/literal/saturate/462535.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/literal/saturate/462535.wgsl.expected.fxc.hlsl
index 0c7e9db..6698fae 100644
--- a/test/tint/builtins/gen/literal/saturate/462535.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/literal/saturate/462535.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_462535() {
   vector<float16_t, 3> res = saturate((float16_t(0.0h)).xxx);
@@ -30,3 +30,6 @@
   saturate_462535();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x00000234CFF040C0(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/literal/saturate/cd2028.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/literal/saturate/cd2028.wgsl.expected.fxc.hlsl
index 44a52f4..50c0dd1 100644
--- a/test/tint/builtins/gen/literal/saturate/cd2028.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/literal/saturate/cd2028.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_cd2028() {
   vector<float16_t, 2> res = saturate((float16_t(0.0h)).xx);
@@ -30,3 +30,6 @@
   saturate_cd2028();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x00000147A2EDE4A0(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/literal/saturate/dcde71.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/literal/saturate/dcde71.wgsl.expected.fxc.hlsl
index f7a8be7..548bc74 100644
--- a/test/tint/builtins/gen/literal/saturate/dcde71.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/literal/saturate/dcde71.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_dcde71() {
   vector<float16_t, 4> res = saturate((float16_t(0.0h)).xxxx);
@@ -30,3 +30,6 @@
   saturate_dcde71();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x000002580D780150(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/literal/saturate/e8df56.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/literal/saturate/e8df56.wgsl.expected.fxc.hlsl
index 1f09eef..8bc21b2 100644
--- a/test/tint/builtins/gen/literal/saturate/e8df56.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/literal/saturate/e8df56.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_e8df56() {
   float16_t res = saturate(float16_t(0.0h));
@@ -30,3 +30,7 @@
   saturate_e8df56();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x0000020A83F5F990(2,3-11): error X3000: unrecognized identifier 'float16_t'
+C:\src\dawn\test\tint\Shader@0x0000020A83F5F990(2,13-15): error X3000: unrecognized identifier 'res'
+
diff --git a/test/tint/builtins/gen/var/saturate/462535.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/var/saturate/462535.wgsl.expected.fxc.hlsl
index 18f8f61..7a4deca 100644
--- a/test/tint/builtins/gen/var/saturate/462535.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/var/saturate/462535.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_462535() {
   vector<float16_t, 3> arg_0 = (float16_t(0.0h)).xxx;
@@ -31,3 +31,7 @@
   saturate_462535();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x000001DC3F306920(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+C:\src\dawn\test\tint\Shader@0x000001DC3F306920(3,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/var/saturate/cd2028.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/var/saturate/cd2028.wgsl.expected.fxc.hlsl
index 71204cd..314bc8a 100644
--- a/test/tint/builtins/gen/var/saturate/cd2028.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/var/saturate/cd2028.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_cd2028() {
   vector<float16_t, 2> arg_0 = (float16_t(0.0h)).xx;
@@ -31,3 +31,7 @@
   saturate_cd2028();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x00000112C07589F0(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+C:\src\dawn\test\tint\Shader@0x00000112C07589F0(3,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/var/saturate/dcde71.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/var/saturate/dcde71.wgsl.expected.fxc.hlsl
index 63af37a..75dd778 100644
--- a/test/tint/builtins/gen/var/saturate/dcde71.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/var/saturate/dcde71.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_dcde71() {
   vector<float16_t, 4> arg_0 = (float16_t(0.0h)).xxxx;
@@ -31,3 +31,7 @@
   saturate_dcde71();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x0000023B2F7F4970(2,10-18): error X3000: syntax error: unexpected token 'float16_t'
+C:\src\dawn\test\tint\Shader@0x0000023B2F7F4970(3,10-18): error X3000: syntax error: unexpected token 'float16_t'
+
diff --git a/test/tint/builtins/gen/var/saturate/e8df56.wgsl.expected.fxc.hlsl b/test/tint/builtins/gen/var/saturate/e8df56.wgsl.expected.fxc.hlsl
index 2ddd244..3a649ba 100644
--- a/test/tint/builtins/gen/var/saturate/e8df56.wgsl.expected.fxc.hlsl
+++ b/test/tint/builtins/gen/var/saturate/e8df56.wgsl.expected.fxc.hlsl
@@ -1,4 +1,4 @@
-SKIP: FAILED - f16 not supported with FXC
+SKIP: FAILED
 
 void saturate_e8df56() {
   float16_t arg_0 = float16_t(0.0h);
@@ -31,3 +31,7 @@
   saturate_e8df56();
   return;
 }
+FXC validation failure:
+C:\src\dawn\test\tint\Shader@0x000001DB75B70300(2,3-11): error X3000: unrecognized identifier 'float16_t'
+C:\src\dawn\test\tint\Shader@0x000001DB75B70300(2,13-17): error X3000: unrecognized identifier 'arg_0'
+