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| author | Dan Gohman <dan433584@gmail.com> | 2016-01-06 19:43:32 +0000 |
|---|---|---|
| committer | Dan Gohman <dan433584@gmail.com> | 2016-01-06 19:43:32 +0000 |
| commit | 1aa5828b7917a3b801526e7b142711541c692bd4 (patch) | |
| tree | 5faedba1fbe7c8684bf22b9f71965ec0ee24d0c4 /clang/lib/Driver/Tools.cpp | |
| parent | 5eb90a7835b9558b151aafb88f1cca6f7f5e9c92 (diff) | |
| download | llvm-1aa5828b7917a3b801526e7b142711541c692bd4.zip llvm-1aa5828b7917a3b801526e7b142711541c692bd4.tar.gz llvm-1aa5828b7917a3b801526e7b142711541c692bd4.tar.bz2 | |
[WebAssembly] Add --gc-sections to the link line.
This will eventually be accompanied with a change to enable -ffunction-sections
and -fdata-sections by default, which is currently delayed by some development
process issues.
llvm-svn: 256967
Diffstat (limited to 'clang/lib/Driver/Tools.cpp')
| -rw-r--r-- | clang/lib/Driver/Tools.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/clang/lib/Driver/Tools.cpp b/clang/lib/Driver/Tools.cpp index 8468105..598ebc9 100644 --- a/clang/lib/Driver/Tools.cpp +++ b/clang/lib/Driver/Tools.cpp @@ -6534,6 +6534,11 @@ void wasm::Linker::ConstructJob(Compilation &C, const JobAction &JA, ArgStringList CmdArgs; CmdArgs.push_back("-flavor"); CmdArgs.push_back("ld"); + + // Enable garbage collection of unused input sections by default, since code + // size is of particular importance. + CmdArgs.push_back("--gc-sections"); + AddLinkerInputs(getToolChain(), Inputs, Args, CmdArgs); CmdArgs.push_back("-o"); CmdArgs.push_back(Output.getFilename()); |