Define `Texture::Sample` for float element types only. (#3403)

* Define `Texture::Sample` for float element types only.

* Fixes #490.

* Fix checking of groupshared.

* Add test.

* Fix.

---------

Co-authored-by: Yong He <yhe@nvidia.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/source/slang/core.meta.slang b/source/slang/core.meta.slang
index 3a19d345a..fbb18109e 100644
--- a/source/slang/core.meta.slang
+++ b/source/slang/core.meta.slang
@@ -1091,12 +1091,15 @@ struct matrix : IArray<vector<T,C>>
     __subscript(int index) -> vector<T,C> { __intrinsic_op($(kIROp_GetElement)) get; }
 }
 
+__intrinsic_op($(kIROp_Eql))
+vector<bool, N> __vectorEql<T, let N:int>(vector<T, N> left, vector<T,N> right);
+
 __generic<T:__BuiltinFloatingPointType, let N : int>
 extension vector<T,N> : IFloat
 {
-    [__unsafeForceInlineEarly] bool lessThan(This other) { return this < other; }
-    [__unsafeForceInlineEarly] bool lessThanOrEquals(This other) { return this <= other; }
-    [__unsafeForceInlineEarly] bool equals(This other) { return all(this == other); }
+    [__unsafeForceInlineEarly] bool lessThan(This other) { return this[0] < other[0]; }
+    [__unsafeForceInlineEarly] bool lessThanOrEquals(This other) { return this[0] <= other[0]; }
+    [__unsafeForceInlineEarly] bool equals(This other) { return all(__vectorEql(this, other)); }
     __intrinsic_op($(kIROp_Add)) This add(This other);
     __intrinsic_op($(kIROp_Sub)) This sub(This other);
     __intrinsic_op($(kIROp_Mul)) This mul(This other);