SKIP: FAILED static uint x_1 = 0u; static bool x_7 = false; static bool x_8 = false; void main_1() { [loop] while (true) { uint x_2_phi = 0u; uint x_3_phi = 0u; const bool x_101 = x_7; const bool x_102 = x_8; x_2_phi = 0u; x_3_phi = 1u; if (x_101) { break; } [loop] while (true) { uint x_4 = 0u; const uint x_2 = x_2_phi; const uint x_3 = x_3_phi; if (x_102) { break; } { x_4 = (x_2 + 1u); x_2_phi = x_4; x_3_phi = x_3; } } } return; } void main() { main_1(); return; } FXC validation failure: C:\src\dawn\test\tint\Shader@0x000001C33AA1CA60(6,10-21): warning X3557: loop doesn't seem to do anything, consider removing [loop] C:\src\dawn\test\tint\Shader@0x000001C33AA1CA60(6,10-21): warning X3551: infinite loop detected - loop writes no values C:\src\dawn\test\tint\Shader@0x000001C33AA1CA60(16,19-22): error X3696: infinite loop detected - loop never exits