derivative: add compiletests

Author: Firestar99

crates/spirv-std/src/arch/derivative.rs

@@ -36,6 +36,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddx(self) -> Self {
         deriv_fn!(OpDPdx, self)
     }
@@ -48,6 +49,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddx_fine(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpDPdxFine, self)
@@ -63,6 +65,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddx_coarse(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpDPdxCoarse, self)
@@ -77,6 +80,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddy(self) -> Self {
         deriv_fn!(OpDPdy, self)
     }
@@ -89,6 +93,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddy_fine(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpDPdyFine, self)
@@ -104,6 +109,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn ddy_coarse(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpDPdyCoarse, self)
@@ -116,6 +122,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn fwidth(self) -> Self {
         deriv_fn!(OpFwidth, self)
     }
@@ -127,6 +134,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn fwidth_fine(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpFwidthFine, self)
@@ -139,6 +147,7 @@ pub unsafe trait Derivative: Sealed + Default {
     ///
     /// This instruction is only valid in the Fragment Execution Model.
     #[crate::macros::gpu_only]
+    #[inline]
     fn fwidth_coarse(self) -> Self {
         cap_deriv_control!();
         deriv_fn!(OpFwidthCoarse, self)

tests/ui/arch/derivative.rs

@@ -0,0 +1,16 @@
+// build-pass
+// compile-flags: -C llvm-args=--disassemble-fn=derivative::derivative
+
+use spirv_std::arch::Derivative;
+use spirv_std::spirv;
+
+#[spirv(fragment)]
+pub fn main() {
+    derivative();
+}
+
+pub fn derivative() {
+    Derivative::ddx(0.);
+    Derivative::ddy(0.);
+    Derivative::fwidth(0.);
+}

tests/ui/arch/derivative.stderr

@@ -0,0 +1,11 @@
+%1 = OpFunction  %2  None %3
+%4 = OpLabel
+OpLine %5 41 8
+%6 = OpDPdx  %7  %8
+OpLine %5 85 8
+%9 = OpDPdy  %7  %8
+OpLine %5 127 8
+%10 = OpFwidth  %7  %8
+OpNoLine
+OpReturn
+OpFunctionEnd

tests/ui/arch/derivative_control.rs

@@ -0,0 +1,21 @@
+// build-pass
+// compile-flags: -C target-feature=+DerivativeControl
+// compile-flags: -C llvm-args=--disassemble-fn=derivative_control::derivative
+
+use spirv_std::arch::Derivative;
+use spirv_std::spirv;
+
+#[spirv(fragment)]
+pub fn main() {
+    derivative();
+}
+
+pub fn derivative() {
+    Derivative::ddx_fine(0.);
+    Derivative::ddy_fine(0.);
+    Derivative::fwidth_fine(0.);
+
+    Derivative::ddx_coarse(0.);
+    Derivative::ddy_coarse(0.);
+    Derivative::fwidth_coarse(0.);
+}

tests/ui/arch/derivative_control.stderr

@@ -0,0 +1,17 @@
+%1 = OpFunction  %2  None %3
+%4 = OpLabel
+OpLine %5 55 8
+%6 = OpDPdxFine  %7  %8
+OpLine %5 99 8
+%9 = OpDPdyFine  %7  %8
+OpLine %5 140 8
+%10 = OpFwidthFine  %7  %8
+OpLine %5 71 8
+%11 = OpDPdxCoarse  %7  %8
+OpLine %5 115 8
+%12 = OpDPdyCoarse  %7  %8
+OpLine %5 153 8
+%13 = OpFwidthCoarse  %7  %8
+OpNoLine
+OpReturn
+OpFunctionEnd