[llvm] [mlir][bazel] Don't set MLIR_ENABLE_NVPTXCOMPILER on if_cuda_available. (PR #84238)

[Ingo Müller via llvm-commits]

https://github.com/ingomueller-net updated https://github.com/llvm/llvm-project/pull/84238

>From 1bc88c9dcd07a5d77cb94e5853dacd0314db4bf8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ingo=20M=C3=BCller?= <ingomueller at google.com>
Date: Wed, 6 Mar 2024 21:15:53 +0000
Subject: [PATCH] [mlir][bazel] Don't set MLIR_ENABLE_NVPTXCOMPILER on
 if_cuda_available.

was available. However, it turns out that the NVPTX compiler is not part
of every CUDA distribution, so `if_cuda_available` may evaluate to true
without that compiler being present, which breaks the build. This PR
thus sets the macro to 0 always (which was the behavior before #84007).
---
 utils/bazel/llvm-project-overlay/mlir/BUILD.bazel | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
index d2bacbb6ce47d6..86b38ebd2217b9 100644
--- a/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/mlir/BUILD.bazel
@@ -35,17 +35,12 @@ expand_template(
         "#cmakedefine01 MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE": "#define MLIR_DEPRECATED_GPU_SERIALIZATION_ENABLE 0",
         "#cmakedefine01 MLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS": "#define MLIR_ENABLE_EXPENSIVE_PATTERN_API_CHECKS 0",
         "#cmakedefine MLIR_GREEDY_REWRITE_RANDOMIZER_SEED ${MLIR_GREEDY_REWRITE_RANDOMIZER_SEED}": "/* #undef MLIR_GREEDY_REWRITE_RANDOMIZER_SEED */",
+        "#cmakedefine01 MLIR_ENABLE_NVPTXCOMPILER": "#define MLIR_ENABLE_NVPTXCOMPILER 0",
         "#cmakedefine01 MLIR_ENABLE_PDL_IN_PATTERNMATCH": "#define MLIR_ENABLE_PDL_IN_PATTERNMATCH 1",
         "#cmakedefine01 MLIR_ENABLE_ROCM_CONVERSIONS": "#define MLIR_ENABLE_ROCM_CONVERSIONS 0",
     } | if_cuda_available(
-        {
-            "#cmakedefine01 MLIR_ENABLE_CUDA_CONVERSIONS": "#define MLIR_ENABLE_CUDA_CONVERSIONS 1",
-            "#cmakedefine01 MLIR_ENABLE_NVPTXCOMPILER": "#define MLIR_ENABLE_NVPTXCOMPILER 1",
-        },
-        {
-            "#cmakedefine01 MLIR_ENABLE_CUDA_CONVERSIONS": "#define MLIR_ENABLE_CUDA_CONVERSIONS 0",
-            "#cmakedefine01 MLIR_ENABLE_NVPTXCOMPILER": "#define MLIR_ENABLE_NVPTXCOMPILER 0",
-        },
+        {"#cmakedefine01 MLIR_ENABLE_CUDA_CONVERSIONS": "#define MLIR_ENABLE_CUDA_CONVERSIONS 1"},
+        {"#cmakedefine01 MLIR_ENABLE_CUDA_CONVERSIONS": "#define MLIR_ENABLE_CUDA_CONVERSIONS 0"},
     ),
     template = "include/mlir/Config/mlir-config.h.cmake",
 )