Fix CUDA issues with texture reads and surface writes (#7780)

* Fix 1D texture reads in CUDA target

Fixes #7570: 1D surface writes don't work

The issue was that the Load function for read-only textures (hlsl.meta.slang lines 3629-3656)
only supported 2D and 3D textures for CUDA targets, causing 1D texture reads to fall through
to <invalid intrinsic>. This affected the srcTexture[tid.x] read operation in the reproduction case.

Changes:
- Updated static_assert to include SLANG_TEXTURE_1D support
- Added tex1DArrayfetch_int<T> for 1D array texture reads
- Added tex1Dfetch_int<T> for regular 1D texture reads

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Mukund Keshava <mkeshavaNV@users.noreply.github.com>

* Add 1D texture read support for CUDA target

- Add tex1Dfetch_int template specializations for float2, float4, uint, uint2, uint4
- Remove TODO comment about 1D PTX not being supported
- Enable 1D texture test in texture-subscript-cuda.slang
- Fix assembly code issues in original template specializations

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Mukund Keshava <mkeshavaNV@users.noreply.github.com>

* Update slang-cuda-prelude.h

* Fix texture3d ptx issue

* undo 1D texture changes

* Update hlsl.meta.slang

* Update hlsl.meta.slang

* Update hlsl.meta.slang

* Update hlsl.meta.slang

* Extend texture-subscript-cuda.slang test with uint and int format variants

Add test cases for newly supported texture formats in CUDA:
- 2D textures with uint, uint2, uint4
- 2D textures with int, int2, int4
- 3D textures with uint, uint2, uint4
- 3D textures with int, int2, int4

This ensures the texture subscript operations work correctly for all
the format variants added in the CUDA texture fixes.

Co-authored-by: Mukund Keshava <mkeshavaNV@users.noreply.github.com>

* update expected file

---------

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: Mukund Keshava <mkeshavaNV@users.noreply.github.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/source/slang/hlsl.meta.slang b/source/slang/hlsl.meta.slang
index 216dfc04a..264098bec 100644
--- a/source/slang/hlsl.meta.slang
+++ b/source/slang/hlsl.meta.slang
@@ -28388,4 +28388,4 @@ void InterlockedAddF16Emulated(half* dest, half value, out half originalValue)
 void InterlockedAddF16x2(half2* dest, half2 value, out half2 originalValue)
 {
     originalValue = __atomic_add(*dest, value);
-}
\ No newline at end of file
+}