// RUN: %clang_cc1 -triple dxil-pc-shadermodel6.8-library -x hlsl %s -verify

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 1}}
[WaveSize(1)]
void e0() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 2}}
[WaveSize(4, 2)]
void e1() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 7}}
[WaveSize(4, 8, 7)]
void e2() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute argument is invalid: min must not be greater than max}}
[WaveSize(16, 8)]
void e3() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 16 and 128 inclusive; provided argument was 8}}
[WaveSize(16, 128, 8)]
void e4() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 8 and 16 inclusive; provided argument was 32}}
[WaveSize(8, 16, 32)]
void e5() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 0}}
[WaveSize(4, 0)]
void e6() {
}


[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 0}}
[WaveSize(4, 4, 0)]
void e7() {
}


[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute minimum and maximum arguments are equal}}
[WaveSize(16, 16)]
void e8() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 0}}
[WaveSize(0)]
void e9() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute requires an integer argument which is a constant power of two between 4 and 128 inclusive; provided argument was 4294967292}}
[WaveSize(-4)]
void e10() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute takes no more than 3 arguments}}
[WaveSize(16, 128, 64, 64)]
void e11() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute takes at least 1 argument}}
[WaveSize()]
void e12() {
}

[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute takes at least 1 argument}}
[WaveSize]
void e13() {
}


[shader("compute")]
[numthreads(1,1,1)]
// expected-error@+1 {{'WaveSize' attribute parameters do not match the previous declaration}}
[WaveSize(8)]
// expected-note@+1 {{conflicting attribute is here}}
[WaveSize(16)]
void e14() {
}