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llvm-project/clang/test/Driver/aarch64-outliner.c

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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
2018-05-03 00:42:51 +08:00
// REQUIRES: aarch64-registered-target
Add a mno-outline flag to disable the MachineOutliner Since we're working on turning the MachineOutliner by default under -Oz for AArch64, it makes sense to have an -mno-outline flag available. This currently doesn't do much (it basically just undoes -moutline). When the MachineOutliner is on by default under AArch64, this flag should set -mllvm -enable-machine-outliner=never. llvm-svn: 331810
2018-05-09 04:58:32 +08:00
// RUN: %clang -target aarch64 -moutline -S %s -### 2>&1 | FileCheck %s -check-prefix=ON
// ON: "-mllvm" "-enable-machine-outliner"
[MachineOutliner] Make last of -moutline/-mno-outline win The expected behaviour of command-line flags to clang is to have the last of -m(whatever) and -mno-(whatever) win. The outliner didn't do that. This fixes that and updates the test. llvm-svn: 335503
2018-06-26 01:27:51 +08:00
// RUN: %clang -target aarch64 -moutline -mno-outline -S %s -### 2>&1 | FileCheck %s -check-prefix=OFF
[MachineOutliner] Make -mno-outline use -enable-machine-outliner=never This updates -mno-outline so that it passes -enable-machine-outliner=never instead of nothing. This puts it in sync with the behaviour in llc and other tools. llvm-svn: 336001
2018-06-30 02:06:10 +08:00
// OFF: "-mllvm" "-enable-machine-outliner=never"
[MachineOutliner] Emit a warning when using -moutline on unsupported targets Instead of just saying "flag unused", we should tell the user that the outliner isn't (at least officially) supported for some given architecture. This adds a warning that will state something like The 'blah' architecture does not support -moutline; flag ignored when we call -moutline with the 'blah' architecture. Since the outliner is still mostly an AArch64 thing, any architecture other than AArch64 will emit this warning. llvm-svn: 335672
2018-06-27 06:09:48 +08:00
// RUN: %clang -target x86_64 -moutline -S %s -### 2>&1 | FileCheck %s -check-prefix=WARN
// WARN: warning: The 'x86_64' architecture does not support -moutline; flag ignored [-Woption-ignored]
// WARN-NOT: "-mllvm" "-enable-machine-outliner"