[llvm] [HLSL] XFAIL `smoothstep.ll` and `SV_GroupIndex.ll` SPIR-V backend tests (PR #136343)

[Kaitlin Peng via llvm-commits]

https://github.com/kmpeng created https://github.com/llvm/llvm-project/pull/136343

Temporarily fixes #136049.

SPIRV-Tools seems to have [grown some capability checks for vulkan 1.3](https://github.com/KhronosGroup/SPIRV-Tools/commit/7e41c7130f8258bf2d62179d8d6dbf3b68a7978b), which broke:
- `CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll`
- `CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll`

For now the fix is to XFAIL these tests to unblock the pipeline.

>From 22c681018f777c1e1297e2654eda3ccb90993890 Mon Sep 17 00:00:00 2001
From: kmpeng <kaitlinpeng at microsoft.com>
Date: Fri, 18 Apr 2025 11:26:44 -0700
Subject: [PATCH] xfail smoothstep.ll and SV_GroupIndex.ll tests

---
 llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll | 3 +++
 llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll    | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll
index 83caa62150cda..f5be558929b52 100644
--- a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll
+++ b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/SV_GroupIndex.ll
@@ -1,6 +1,9 @@
 ; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-vulkan-unknown %s -o - | FileCheck %s
 ; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-vulkan-unknown %s -o - -filetype=obj | spirv-val --target-env vulkan1.3 %}
 
+; TODO: This test currently fails when --target-env vulkan1.3 is specified.
+; XFAIL: *
+
 ; CHECK-DAG:        %[[#int:]] = OpTypeInt 32 0
 ; CHECK-DAG:        %[[#ptr_Input_int:]] = OpTypePointer Input %[[#int]]
 ; CHECK-DAG:        %[[#LocalInvocationIndex:]] = OpVariable %[[#ptr_Input_int]] Input
diff --git a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll
index e0e04dd0faf58..64f3287f43416 100644
--- a/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll
+++ b/llvm/test/CodeGen/SPIRV/hlsl-intrinsics/smoothstep.ll
@@ -1,6 +1,9 @@
 ; RUN: llc -O0 -verify-machineinstrs -mtriple=spirv-unknown-unknown %s -o - | FileCheck %s
 ; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-unknown %s -o - -filetype=obj | spirv-val --target-env vulkan1.3 %}
 
+; TODO: This test currently fails when --target-env vulkan1.3 is specified.
+; XFAIL: *
+
 ; Make sure SPIRV operation function calls for smoothstep are lowered correctly.
 
 ; CHECK-DAG: %[[#op_ext_glsl:]] = OpExtInstImport "GLSL.std.450"