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| author | Jessica Paquette <jpaquette@apple.com> | 2018-05-02 16:42:51 +0000 |
|---|---|---|
| committer | Jessica Paquette <jpaquette@apple.com> | 2018-05-02 16:42:51 +0000 |
| commit | 8e71ee3c07e9ad64ec36661f1f3aff253e9435d5 (patch) | |
| tree | 77d8a2a6fe59ee73c21c7b32f622b2e564b0dd44 | |
| parent | a3a4df37088dbe40d6bcecd56398b291862a9931 (diff) | |
| download | bcm5719-llvm-8e71ee3c07e9ad64ec36661f1f3aff253e9435d5.tar.gz bcm5719-llvm-8e71ee3c07e9ad64ec36661f1f3aff253e9435d5.zip | |
Add -foutline option to enable the MachineOutliner in AArch64
Since we've been working on productizing the MachineOutliner in AArch64, it
makes sense to provide a more user-friendly way to enable it.
This allows users of AArch64 to enable the outliner using -foutline instead
of -mllvm -enable-machine-outliner. Other, less mature implementations (e.g,
x86-64) can still enable the pass using the -mllvm option.
Also add a test to make sure it works.
llvm-svn: 331370
| -rw-r--r-- | clang/include/clang/Driver/Options.td | 2 | ||||
| -rw-r--r-- | clang/lib/Driver/ToolChains/Clang.cpp | 5 | ||||
| -rw-r--r-- | clang/test/Driver/aarch64-outliner.c | 4 |
3 files changed, 11 insertions, 0 deletions
diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td index 4a9e22b8460..437006b9ff1 100644 --- a/clang/include/clang/Driver/Options.td +++ b/clang/include/clang/Driver/Options.td @@ -1317,6 +1317,8 @@ def fno_exceptions : Flag<["-"], "fno-exceptions">, Group<f_Group>; def fno_gnu_keywords : Flag<["-"], "fno-gnu-keywords">, Group<f_Group>, Flags<[CC1Option]>; def fno_inline_functions : Flag<["-"], "fno-inline-functions">, Group<f_clang_Group>, Flags<[CC1Option]>; def fno_inline : Flag<["-"], "fno-inline">, Group<f_clang_Group>, Flags<[CC1Option]>; +def foutline : Flag<["-"], "foutline">, Group<f_clang_Group>, Flags<[CC1Option]>, + HelpText<"Enable function outlining (AArch64 only)">; def fno_experimental_isel : Flag<["-"], "fno-experimental-isel">, Group<f_clang_Group>, HelpText<"Disables the experimental global instruction selector">; def fno_experimental_new_pass_manager : Flag<["-"], "fno-experimental-new-pass-manager">, diff --git a/clang/lib/Driver/ToolChains/Clang.cpp b/clang/lib/Driver/ToolChains/Clang.cpp index 5e5dfdeecae..26789f1b815 100644 --- a/clang/lib/Driver/ToolChains/Clang.cpp +++ b/clang/lib/Driver/ToolChains/Clang.cpp @@ -1484,6 +1484,11 @@ void Clang::AddAArch64TargetArgs(const ArgList &Args, else CmdArgs.push_back("-aarch64-enable-global-merge=true"); } + + if (Arg *A = Args.getLastArg(options::OPT_foutline)) { + CmdArgs.push_back("-mllvm"); + CmdArgs.push_back("-enable-machine-outliner"); + } } void Clang::AddMIPSTargetArgs(const ArgList &Args, diff --git a/clang/test/Driver/aarch64-outliner.c b/clang/test/Driver/aarch64-outliner.c new file mode 100644 index 00000000000..2d539dfce6a --- /dev/null +++ b/clang/test/Driver/aarch64-outliner.c @@ -0,0 +1,4 @@ +// REQUIRES: aarch64-registered-target + +// RUN: %clang -target aarch64 -foutline -S %s -### 2>&1 | FileCheck %s +// CHECK: "-mllvm" "-enable-machine-outliner" |
