ChuanqiXu updated this revision to Diff 488836.
ChuanqiXu marked an inline comment as done.
ChuanqiXu added a comment.
Address comments: fix a typo.
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D137058/new/
https://reviews.llvm.org/D137058
Files:
clang/include/clang/Basic/DiagnosticDriverKinds.td
clang/include/clang/Driver/Options.td
clang/lib/Driver/Driver.cpp
clang/test/Driver/lit.local.cfg
clang/test/Driver/module-output.cppm
Index: clang/test/Driver/module-output.cppm
===================================================================
--- /dev/null
+++ clang/test/Driver/module-output.cppm
@@ -0,0 +1,33 @@
+// RUN: rm -rf %t
+// RUN: mkdir %t
+// RUN: split-file %s %t
+//
+// Tests that the .pcm file will be generated in the same directory with the specified
+// output and the name of the .pcm file should be the same with the input file.
+// RUN: %clang -std=c++20 %t/Hello.cppm -fmodule-output -c -o %t/output/Hello.o \
+// RUN: -### 2>&1 | FileCheck %t/Hello.cppm
+//
+// Tests that the output file will be generated in the input directory if the output
+// file is not the corresponding object file.
+// RUN: %clang -std=c++20 %t/Hello.cppm %t/AnotherModule.cppm -fmodule-output -o \
+// RUN: %t/output/a.out -### 2>&1 | FileCheck %t/AnotherModule.cppm
+//
+// Tests that clang will reject the command line if it specifies -fmodule-output with
+// multiple archs.
+// RUN: %clang %t/Hello.cppm -fmodule-output -arch i386 -arch x86_64 -### -target \
+// RUN: x86_64-apple-darwin 2>&1 | FileCheck %t/Hello.cppm -check-prefix=MULTIPLE-ARCH
+
+//--- Hello.cppm
+export module Hello;
+
+// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/output/Hello.pcm" "-x" "c++" "{{.*}}/Hello.cppm"
+// CHECK: "-emit-obj" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/output/Hello.o" "-x" "pcm" "{{.*}}/output/Hello.pcm"
+
+// MULTIPLE-ARCH: option '-fmodule-output' can't be used with multiple arch options
+
+//--- AnotherModule.cppm
+export module AnotherModule;
+// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/Hello.pcm" "-x" "c++" "{{.*}}/Hello.cppm"
+// CHECK: "-emit-obj" {{.*}}"-main-file-name" "Hello.cppm" {{.*}}"-o" "{{.*}}/Hello-{{.*}}.o" "-x" "pcm" "{{.*}}/Hello.pcm"
+// CHECK: "-emit-module-interface" {{.*}}"-main-file-name" "AnotherModule.cppm" {{.*}}"-o" "{{.*}}/AnotherModule.pcm" "-x" "c++" "{{.*}}/AnotherModule.cppm"
+// CHECK: "-emit-obj" {{.*}}"-main-file-name" "AnotherModule.cppm" {{.*}}"-o" "{{.*}}/AnotherModule-{{.*}}.o" "-x" "pcm" "{{.*}}/AnotherModule.pcm"
Index: clang/test/Driver/lit.local.cfg
===================================================================
--- clang/test/Driver/lit.local.cfg
+++ clang/test/Driver/lit.local.cfg
@@ -1,6 +1,6 @@
from lit.llvm import llvm_config
-config.suffixes = ['.c', '.cpp', '.h', '.m', '.mm', '.S', '.s', '.f90', '.F90', '.f95',
+config.suffixes = ['.c', '.cpp', '.cppm', '.h', '.m', '.mm', '.S', '.s', '.f90', '.F90', '.f95',
'.cu', '.rs', '.cl', '.clcpp', '.hip', '.hipi', '.hlsl']
config.substitutions = list(config.substitutions)
config.substitutions.insert(0,
Index: clang/lib/Driver/Driver.cpp
===================================================================
--- clang/lib/Driver/Driver.cpp
+++ clang/lib/Driver/Driver.cpp
@@ -5553,6 +5553,30 @@
return C.addTempFile(C.getArgs().MakeArgString(TmpName));
}
+// Calculate the output path of the module file when compiling a module unit
+// with the `-fmodule-output` option specified. The behavior is:
+// - If the output object file of the module unit is specified, the output path
+// of the module file should be the same with the output object file except
+// the corresponding suffix. This requires both `-o` and `-c` are specified.
+// - Otherwise, the output path of the module file will be the same with the
+// input with the corresponding suffix.
+static const char *GetModuleOutputPath(Compilation &C, const JobAction &JA,
+ const char *BaseInput) {
+ assert(isa<PrecompileJobAction>(JA) && JA.getType() == types::TY_ModuleFile &&
+ C.getArgs().hasArg(options::OPT_fmodule_output));
+
+ SmallString<64> OutputPath;
+ Arg *FinalOutput = C.getArgs().getLastArg(options::OPT_o);
+ if (FinalOutput && C.getArgs().hasArg(options::OPT_c))
+ OutputPath = FinalOutput->getValue();
+ else
+ OutputPath = BaseInput;
+
+ const char *Extension = types::getTypeTempSuffix(JA.getType());
+ llvm::sys::path::replace_extension(OutputPath, Extension);
+ return C.addResultFile(C.getArgs().MakeArgString(OutputPath.c_str()), &JA);
+}
+
const char *Driver::GetNamedOutputPath(Compilation &C, const JobAction &JA,
const char *BaseInput,
StringRef OrigBoundArch, bool AtTopLevel,
@@ -5609,6 +5633,16 @@
&JA);
}
+ if (MultipleArchs && C.getArgs().hasArg(options::OPT_fmodule_output))
+ Diag(clang::diag::err_drv_module_output_with_multiple_arch);
+
+ // If we're emitting a module output with the specified option
+ // `-fmodule-output`.
+ if (!AtTopLevel && isa<PrecompileJobAction>(JA) &&
+ JA.getType() == types::TY_ModuleFile &&
+ C.getArgs().hasArg(options::OPT_fmodule_output))
+ return GetModuleOutputPath(C, JA, BaseInput);
+
// Output to a temporary file?
if ((!AtTopLevel && !isSaveTempsEnabled() &&
!C.getArgs().hasArg(options::OPT__SLASH_Fo)) ||
@@ -5771,9 +5805,9 @@
else
llvm::sys::path::append(BasePath, NamedOutput);
return C.addResultFile(C.getArgs().MakeArgString(BasePath.c_str()), &JA);
- } else {
- return C.addResultFile(NamedOutput, &JA);
}
+
+ return C.addResultFile(NamedOutput, &JA);
}
std::string Driver::GetFilePath(StringRef Name, const ToolChain &TC) const {
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -2306,6 +2306,9 @@
PosFlag<SetTrue, [], "Look up implicit modules in the prebuilt module path">,
NegFlag<SetFalse>, BothFlags<[NoXarchOption, CC1Option]>>;
+def fmodule_output : Flag<["-"], "fmodule-output">, Flags<[NoXarchOption, CC1Option]>,
+ HelpText<"Save intermediate module file results when compiling a standard C++ module unit.">;
+
def fmodules_prune_interval : Joined<["-"], "fmodules-prune-interval=">, Group<i_Group>,
Flags<[CC1Option]>, MetaVarName<"<seconds>">,
HelpText<"Specify the interval (in seconds) between attempts to prune the module cache">,
Index: clang/include/clang/Basic/DiagnosticDriverKinds.td
===================================================================
--- clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -489,6 +489,9 @@
"-ftest-module-file-extension argument '%0' is not of the required form "
"'blockname:major:minor:hashed:user info'">;
+def err_drv_module_output_with_multiple_arch : Error<
+ "option '-fmodule-output' can't be used with multiple arch options">;
+
def err_drv_extract_api_wrong_kind : Error<
"header file '%0' input '%1' does not match the type of prior input "
"in api extraction; use '-x %2' to override">;
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