[flang-commits] [flang] [flang] Fix full-fledged standalone builds (PR #126387)

Michał Górny via flang-commits flang-commits at lists.llvm.org
Sun Feb 9 07:18:25 PST 2025


https://github.com/mgorny updated https://github.com/llvm/llvm-project/pull/126387

>From 7770d8ed9c1db9bd9c65c1221f39c02ac999a50d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny at gentoo.org>
Date: Sat, 8 Feb 2025 21:04:14 +0100
Subject: [PATCH 1/4] [flang] Skip MLIR target dependencies in standalone
 builds

Add a new `MLIR_DEPS` argument group to `flang_add_library()`, and move
MLIR-specific dependencies to that group.  These dependencies are added
as usual in regular builds, and are skipped in standalone builds,
since MLIR targets are not visible there (and were already built
and installed).

With this change, it is possible to perform a standalone build of Flang
ith `-DFLANG_INCLUDE_TESTS=OFF`.  I will address tests separately.
---
 flang/cmake/modules/AddFlang.cmake                        | 5 ++++-
 flang/lib/Frontend/CMakeLists.txt                         | 8 +++++---
 flang/lib/Lower/CMakeLists.txt                            | 6 ++++--
 flang/lib/Optimizer/Analysis/CMakeLists.txt               | 6 ++++--
 flang/lib/Optimizer/Builder/CMakeLists.txt                | 6 ++++--
 flang/lib/Optimizer/Dialect/CMakeLists.txt                | 4 +++-
 flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeLists.txt | 4 +++-
 flang/lib/Optimizer/Dialect/CUF/CMakeLists.txt            | 4 +++-
 flang/lib/Optimizer/Dialect/Support/CMakeLists.txt        | 4 +++-
 flang/lib/Optimizer/HLFIR/IR/CMakeLists.txt               | 4 +++-
 flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt       | 4 +++-
 flang/lib/Optimizer/OpenACC/CMakeLists.txt                | 4 +++-
 flang/lib/Optimizer/OpenMP/CMakeLists.txt                 | 4 +++-
 flang/lib/Optimizer/Support/CMakeLists.txt                | 8 +++++---
 flang/test/lib/Analysis/AliasAnalysis/CMakeLists.txt      | 4 +++-
 15 files changed, 53 insertions(+), 22 deletions(-)

diff --git a/flang/cmake/modules/AddFlang.cmake b/flang/cmake/modules/AddFlang.cmake
index 1f178772067edc7..7406586c5168e94 100644
--- a/flang/cmake/modules/AddFlang.cmake
+++ b/flang/cmake/modules/AddFlang.cmake
@@ -18,7 +18,7 @@ endmacro()
 
 function(add_flang_library name)
   set(options SHARED STATIC INSTALL_WITH_TOOLCHAIN)
-  set(multiValueArgs ADDITIONAL_HEADERS CLANG_LIBS MLIR_LIBS)
+  set(multiValueArgs ADDITIONAL_HEADERS CLANG_LIBS MLIR_LIBS MLIR_DEPS)
   cmake_parse_arguments(ARG
     "${options}"
     ""
@@ -69,6 +69,9 @@ function(add_flang_library name)
   if (ARG_MLIR_LIBS)
     mlir_target_link_libraries(${name} PRIVATE ${ARG_MLIR_LIBS})
   endif()
+  if (ARG_MLIR_DEPS AND NOT FLANG_STANDALONE_BUILD)
+    add_dependencies(${name} ${ARG_MLIR_DEPS})
+  endif()
 
   if (TARGET ${name})
 
diff --git a/flang/lib/Frontend/CMakeLists.txt b/flang/lib/Frontend/CMakeLists.txt
index 81eef2d468d8c63..80d63fca6fb769a 100644
--- a/flang/lib/Frontend/CMakeLists.txt
+++ b/flang/lib/Frontend/CMakeLists.txt
@@ -18,9 +18,6 @@ add_flang_library(flangFrontend
   FIROptCodeGenPassIncGen
   FIROptTransformsPassIncGen
   HLFIRDialect
-  MLIRIR
-  ${dialect_libs}
-  ${extension_libs}
 
   LINK_LIBS
   CUFDialect
@@ -56,6 +53,11 @@ add_flang_library(flangFrontend
   FrontendOpenACC
   FrontendOpenMP
 
+  MLIR_DEPS
+  MLIRIR
+  ${dialect_libs}
+  ${extension_libs}
+
   MLIR_LIBS
   MLIRTransforms
   MLIRBuiltinToLLVMIRTranslation
diff --git a/flang/lib/Lower/CMakeLists.txt b/flang/lib/Lower/CMakeLists.txt
index c9b249781552e31..87dc2a052796abc 100644
--- a/flang/lib/Lower/CMakeLists.txt
+++ b/flang/lib/Lower/CMakeLists.txt
@@ -44,8 +44,6 @@ add_flang_library(FortranLower
   FIRDialect
   FIRTransforms
   HLFIRDialect
-  ${dialect_libs}
-  ${extension_libs}
 
   LINK_LIBS
   CUFAttrs
@@ -64,6 +62,10 @@ add_flang_library(FortranLower
   LINK_COMPONENTS
   Support
 
+  MLIR_DEPS
+  ${dialect_libs}
+  ${extension_libs}
+
   MLIR_LIBS
   ${dialect_libs}
   ${extension_libs}
diff --git a/flang/lib/Optimizer/Analysis/CMakeLists.txt b/flang/lib/Optimizer/Analysis/CMakeLists.txt
index c4dae898f8e5722..4d4ad882c27d374 100644
--- a/flang/lib/Optimizer/Analysis/CMakeLists.txt
+++ b/flang/lib/Optimizer/Analysis/CMakeLists.txt
@@ -6,8 +6,6 @@ add_flang_library(FIRAnalysis
   FIRDialect
   FIRSupport
   HLFIRDialect
-  MLIRIR
-  MLIROpenMPDialect
 
   LINK_LIBS
   FIRBuilder
@@ -15,6 +13,10 @@ add_flang_library(FIRAnalysis
   FIRSupport
   HLFIRDialect
 
+  MLIR_DEPS
+  MLIRIR
+  MLIROpenMPDialect
+
   MLIR_LIBS
   MLIRFuncDialect
   MLIRLLVMDialect
diff --git a/flang/lib/Optimizer/Builder/CMakeLists.txt b/flang/lib/Optimizer/Builder/CMakeLists.txt
index f8faeaa81c90cd2..f0563d092e3dc62 100644
--- a/flang/lib/Optimizer/Builder/CMakeLists.txt
+++ b/flang/lib/Optimizer/Builder/CMakeLists.txt
@@ -40,8 +40,6 @@ add_flang_library(FIRBuilder
   CUFDialect
   FIRDialect
   HLFIRDialect
-  ${dialect_libs}
-  ${extension_libs}
 
   LINK_LIBS
   CUFAttrs
@@ -52,6 +50,10 @@ add_flang_library(FIRBuilder
   FortranEvaluate
   HLFIRDialect
 
+  MLIR_DEPS
+  ${dialect_libs}
+  ${extension_libs}
+
   MLIR_LIBS
   ${dialect_libs}
   ${extension_libs}
diff --git a/flang/lib/Optimizer/Dialect/CMakeLists.txt b/flang/lib/Optimizer/Dialect/CMakeLists.txt
index d39dca8ed0000bb..61f9c6110491e09 100644
--- a/flang/lib/Optimizer/Dialect/CMakeLists.txt
+++ b/flang/lib/Optimizer/Dialect/CMakeLists.txt
@@ -12,7 +12,6 @@ add_flang_library(FIRDialect
 
   DEPENDS
   CanonicalizationPatternsIncGen
-  MLIRIR
   FIROpsIncGen
   CUFAttrsIncGen
   intrinsics_gen
@@ -26,6 +25,9 @@ add_flang_library(FIRDialect
   AsmPrinter
   Remarks
 
+  MLIR_DEPS
+  MLIRIR
+
   MLIR_LIBS
   MLIRArithDialect
   MLIRBuiltinToLLVMIRTranslation
diff --git a/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeLists.txt b/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeLists.txt
index a0f58504eff05d2..713bd0e97bac311 100644
--- a/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeLists.txt
+++ b/flang/lib/Optimizer/Dialect/CUF/Attributes/CMakeLists.txt
@@ -3,7 +3,6 @@ add_flang_library(CUFAttrs
   CUFAttr.cpp
 
   DEPENDS
-  MLIRIR
   CUFAttrsIncGen
   CUFOpsIncGen
 
@@ -12,6 +11,9 @@ add_flang_library(CUFAttrs
   AsmPrinter
   Remarks
 
+  MLIR_DEPS
+  MLIRIR
+
   MLIR_LIBS
   MLIRTargetLLVMIRExport
 )
diff --git a/flang/lib/Optimizer/Dialect/CUF/CMakeLists.txt b/flang/lib/Optimizer/Dialect/CUF/CMakeLists.txt
index e483b4a1641130c..5b398f2ad506aea 100644
--- a/flang/lib/Optimizer/Dialect/CUF/CMakeLists.txt
+++ b/flang/lib/Optimizer/Dialect/CUF/CMakeLists.txt
@@ -6,7 +6,6 @@ add_flang_library(CUFDialect
   CUFToLLVMIRTranslation.cpp
 
   DEPENDS
-  MLIRIR
   CUFAttrsIncGen
   CUFOpsIncGen
 
@@ -20,6 +19,9 @@ add_flang_library(CUFDialect
   AsmPrinter
   Remarks
 
+  MLIR_DEPS
+  MLIRIR
+
   MLIR_LIBS
   MLIRIR
   MLIRGPUDialect
diff --git a/flang/lib/Optimizer/Dialect/Support/CMakeLists.txt b/flang/lib/Optimizer/Dialect/Support/CMakeLists.txt
index bfdd5279b6f293b..a85d9521af1c447 100644
--- a/flang/lib/Optimizer/Dialect/Support/CMakeLists.txt
+++ b/flang/lib/Optimizer/Dialect/Support/CMakeLists.txt
@@ -5,9 +5,11 @@ add_flang_library(FIRDialectSupport
   FIRContext.cpp
 
   DEPENDS
-  MLIRIR
   intrinsics_gen
 
+  MLIR_DEPS
+  MLIRIR
+
   MLIR_LIBS
   ${dialect_libs}
 )
diff --git a/flang/lib/Optimizer/HLFIR/IR/CMakeLists.txt b/flang/lib/Optimizer/HLFIR/IR/CMakeLists.txt
index 8a646bedf94b840..99e31a43e01e50b 100644
--- a/flang/lib/Optimizer/HLFIR/IR/CMakeLists.txt
+++ b/flang/lib/Optimizer/HLFIR/IR/CMakeLists.txt
@@ -8,7 +8,6 @@ add_flang_library(HLFIRDialect
   CUFAttrsIncGen
   FIRDialect
   HLFIROpsIncGen
-  ${dialect_libs}
 
   LINK_LIBS
   CUFAttrs
@@ -19,6 +18,9 @@ add_flang_library(HLFIRDialect
   AsmPrinter
   Remarks
 
+  MLIR_DEPS
+  ${dialect_libs}
+
   MLIR_LIBS
   MLIRIR
   ${dialect_libs}
diff --git a/flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt b/flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt
index 09286aced608909..7eb3cb4001d5fdf 100644
--- a/flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt
+++ b/flang/lib/Optimizer/HLFIR/Transforms/CMakeLists.txt
@@ -15,7 +15,6 @@ add_flang_library(HLFIRTransforms
   CUFAttrsIncGen
   FIRDialect
   HLFIROpsIncGen
-  ${dialect_libs}
 
   LINK_LIBS
   CUFAttrs
@@ -33,6 +32,9 @@ add_flang_library(HLFIRTransforms
   AsmPrinter
   Remarks
 
+  MLIR_DEPS
+  ${dialect_libs}
+
   MLIR_LIBS
   MLIRIR
   ${dialect_libs}
diff --git a/flang/lib/Optimizer/OpenACC/CMakeLists.txt b/flang/lib/Optimizer/OpenACC/CMakeLists.txt
index 04d351ac265d638..56f625aa0f44142 100644
--- a/flang/lib/Optimizer/OpenACC/CMakeLists.txt
+++ b/flang/lib/Optimizer/OpenACC/CMakeLists.txt
@@ -10,7 +10,6 @@ add_flang_library(FIROpenACCSupport
   FIRDialectSupport
   FIRSupport
   HLFIRDialect
-  MLIROpenACCDialect
 
   LINK_LIBS
   FIRBuilder
@@ -19,6 +18,9 @@ add_flang_library(FIROpenACCSupport
   FIRSupport
   HLFIRDialect
 
+  MLIR_DEPS
+  MLIROpenACCDialect
+
   MLIR_LIBS
   MLIROpenACCDialect
 )
diff --git a/flang/lib/Optimizer/OpenMP/CMakeLists.txt b/flang/lib/Optimizer/OpenMP/CMakeLists.txt
index 86ae93f3207cc3d..4a48d6e0936db0d 100644
--- a/flang/lib/Optimizer/OpenMP/CMakeLists.txt
+++ b/flang/lib/Optimizer/OpenMP/CMakeLists.txt
@@ -12,7 +12,6 @@ add_flang_library(FlangOpenMPTransforms
   FIRDialect
   HLFIROpsIncGen
   FlangOpenMPPassesIncGen
-  ${dialect_libs}
 
   LINK_LIBS
   FIRAnalysis
@@ -24,6 +23,9 @@ add_flang_library(FlangOpenMPTransforms
   FortranSupport
   HLFIRDialect
 
+  MLIR_DEPS
+  ${dialect_libs}
+
   MLIR_LIBS
   MLIRFuncDialect
   MLIROpenMPDialect
diff --git a/flang/lib/Optimizer/Support/CMakeLists.txt b/flang/lib/Optimizer/Support/CMakeLists.txt
index f8e4fc5bcefea43..7ccdd4fd9c25ca1 100644
--- a/flang/lib/Optimizer/Support/CMakeLists.txt
+++ b/flang/lib/Optimizer/Support/CMakeLists.txt
@@ -10,9 +10,6 @@ add_flang_library(FIRSupport
   DEPENDS
   FIROpsIncGen
   HLFIROpsIncGen
-  MLIRIR
-  ${dialect_libs}
-  ${extension_libs}
 
   LINK_LIBS
   FIRDialect
@@ -20,6 +17,11 @@ add_flang_library(FIRSupport
   LINK_COMPONENTS
   TargetParser
 
+  MLIR_DEPS
+  MLIRIR
+  ${dialect_libs}
+  ${extension_libs}
+
   MLIR_LIBS
   ${dialect_libs}
   ${extension_libs}
diff --git a/flang/test/lib/Analysis/AliasAnalysis/CMakeLists.txt b/flang/test/lib/Analysis/AliasAnalysis/CMakeLists.txt
index cba47a41145171c..16df2b607ca931e 100644
--- a/flang/test/lib/Analysis/AliasAnalysis/CMakeLists.txt
+++ b/flang/test/lib/Analysis/AliasAnalysis/CMakeLists.txt
@@ -8,7 +8,6 @@ add_flang_library(FIRTestAnalysis
   FIRSupport
   FIRTransforms
   FIRAnalysis
-  ${dialect_libs}
 
   LINK_LIBS
   FIRDialect
@@ -18,6 +17,9 @@ add_flang_library(FIRTestAnalysis
   FIRAnalysis
   MLIRTestAnalysis
 
+  MLIR_DEPS
+  ${dialect_libs}
+
   MLIR_LIBS
   ${dialect_libs}
   MLIRFuncDialect

>From 6a586927bb4db4e60174cfe762f87dca1889a8d8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny at gentoo.org>
Date: Sun, 9 Feb 2025 13:53:34 +0100
Subject: [PATCH 2/4] [flang] Skip out-of-flang test dependencies in standalone
 builds

Skip test dependencies on targets from other LLVM projects when
performing a standalone build, to fix missing target errors.  This patch
makes it possible to run CMake with `-DFLANG_INCLUDE_TESTS=ON`
when building standalone.
---
 flang/test/CMakeLists.txt                | 22 +++++++++++++---------
 flang/test/lib/OpenACC/CMakeLists.txt    | 10 ++++++----
 flang/unittests/Optimizer/CMakeLists.txt |  8 ++++++--
 3 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/flang/test/CMakeLists.txt b/flang/test/CMakeLists.txt
index e398e0786147aa7..f0d4f54b7109211 100644
--- a/flang/test/CMakeLists.txt
+++ b/flang/test/CMakeLists.txt
@@ -59,26 +59,30 @@ set(FLANG_TEST_PARAMS
 
 set(FLANG_TEST_DEPENDS
   flang
-  llvm-config
-  FileCheck
-  count
-  not
   module_files
   fir-opt
   tco
   bbc
-  llvm-dis
-  llvm-objdump
-  llvm-readobj
-  split-file
   FortranDecimal
 )
+if (NOT FLANG_STANDALONE_BUILD)
+  list(APPEND FLANG_TEST_DEPENDS
+    llvm-config
+    FileCheck
+    count
+    not
+    llvm-dis
+    llvm-objdump
+    llvm-readobj
+    split-file
+  )
+endif ()
 
 if (FLANG_INCLUDE_RUNTIME)
   list(APPEND FLANG_TEST_DEPENDS FortranRuntime)
 endif ()
 
-if (LLVM_ENABLE_PLUGINS AND NOT WIN32)
+if (LLVM_ENABLE_PLUGINS AND NOT WIN32 AND NOT FLANG_STANDALONE_BUILD)
   list(APPEND FLANG_TEST_DEPENDS Bye)
 endif()
 
diff --git a/flang/test/lib/OpenACC/CMakeLists.txt b/flang/test/lib/OpenACC/CMakeLists.txt
index e296827ef53be53..1c0ac748f85e8d3 100644
--- a/flang/test/lib/OpenACC/CMakeLists.txt
+++ b/flang/test/lib/OpenACC/CMakeLists.txt
@@ -5,16 +5,18 @@ add_flang_library(FIRTestOpenACCInterfaces
   FIRDialect
   FIROpenACCSupport
   FIRSupport
-  MLIRIR
-  MLIROpenACCDialect
-  MLIRPass
-  MLIRSupport
 
   LINK_LIBS
   FIRDialect
   FIROpenACCSupport
   FIRSupport
 
+  MLIR_DEPS
+  MLIRIR
+  MLIROpenACCDialect
+  MLIRPass
+  MLIRSupport
+
   MLIR_LIBS
   MLIRIR
   MLIROpenACCDialect
diff --git a/flang/unittests/Optimizer/CMakeLists.txt b/flang/unittests/Optimizer/CMakeLists.txt
index f535677c19fd2f3..17782f07c0d030d 100644
--- a/flang/unittests/Optimizer/CMakeLists.txt
+++ b/flang/unittests/Optimizer/CMakeLists.txt
@@ -39,8 +39,12 @@ DEPENDS
   CUFDialect
   FIRDialect
   FIRSupport
-  HLFIRDialect
-  ${dialect_libs})
+  HLFIRDialect)
+
+if(NOT FLANG_STANDALONE_BUILD)
+  add_dependencies(FlangOptimizerTests
+    ${dialect_libs})
+endif()
 
 target_link_libraries(FlangOptimizerTests
   PRIVATE

>From f60b95a9dafe17aaed3e3b98c266956b6052de4e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny at gentoo.org>
Date: Sun, 9 Feb 2025 14:07:07 +0100
Subject: [PATCH 3/4] [flang] Fix MLIR_MAIN_SRC_DIR for standalone builds

Set `MLIR_MAIN_SRC_DIR` in standalone builds relatively to the current
source directory, rather than relying on the value embedded
in the installed CMake files.  The latter refers to the directory used
to build the MLIR package, and is no longer correct after it is
installed.
---
 flang/CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/flang/CMakeLists.txt b/flang/CMakeLists.txt
index e6de8df5cef1505..1fc033a10e628ce 100644
--- a/flang/CMakeLists.txt
+++ b/flang/CMakeLists.txt
@@ -228,6 +228,11 @@ if (FLANG_STANDALONE_BUILD)
     add_custom_target(doxygen ALL)
   endif()
 
+  # Override the value from installed CMake files, as they refer
+  # to the directory used during the original MLIR package build,
+  # which may be no longer available.  Instead, use the current checkout.
+  set(MLIR_MAIN_SRC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../mlir )
+
 else()
   option(FLANG_INCLUDE_TESTS
          "Generate build targets for the Flang unit tests."

>From 0bdf09b91ec8051e3ed1f666d9b26832ab72a670 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= <mgorny at gentoo.org>
Date: Sun, 9 Feb 2025 16:18:00 +0100
Subject: [PATCH 4/4] [flang] Fix linking to LLVM dylib in Optimizer unittests

---
 flang/unittests/Optimizer/CMakeLists.txt | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/flang/unittests/Optimizer/CMakeLists.txt b/flang/unittests/Optimizer/CMakeLists.txt
index 17782f07c0d030d..1289341619118d0 100644
--- a/flang/unittests/Optimizer/CMakeLists.txt
+++ b/flang/unittests/Optimizer/CMakeLists.txt
@@ -1,6 +1,10 @@
 get_property(dialect_libs GLOBAL PROPERTY MLIR_DIALECT_LIBS)
 get_property(extension_libs GLOBAL PROPERTY MLIR_EXTENSION_LIBS)
 
+set(LLVM_LINK_COMPONENTS
+  TargetParser
+)
+
 set(LIBS
   CUFDialect
   FIRBuilder
@@ -9,7 +13,6 @@ set(LIBS
   FIRDialectSupport
   FIRSupport
   HLFIRDialect
-  LLVMTargetParser
 )
 
 add_flang_unittest(FlangOptimizerTests



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