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| author | Matthias Braun <matze@braunis.de> | 2018-06-28 17:00:45 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2018-06-28 17:00:45 +0000 |
| commit | da5e7e11d1072ea13460f0b4ca77b7de35bf2bb8 (patch) | |
| tree | a90e5c0b5c4706272c63591e23b064285f5723ed /llvm/lib/Target/ARM/ARMTargetMachine.cpp | |
| parent | 2d69f5d82e9caac6ae1607693df1e7c37a2adbcf (diff) | |
| download | bcm5719-llvm-da5e7e11d1072ea13460f0b4ca77b7de35bf2bb8.tar.gz bcm5719-llvm-da5e7e11d1072ea13460f0b4ca77b7de35bf2bb8.zip | |
SelectionDAGBuilder, mach-o: Skip trap after noreturn call (for Mach-O)
Add NoTrapAfterNoreturn target option which skips emission of traps
behind noreturn calls even if TrapUnreachable is enabled.
Enable the feature on Mach-O to save code size; Comments suggest it is
not possible to enable it for the other users of TrapUnreachable.
rdar://41530228
DifferentialRevision: https://reviews.llvm.org/D48674
llvm-svn: 335877
Diffstat (limited to 'llvm/lib/Target/ARM/ARMTargetMachine.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMTargetMachine.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Target/ARM/ARMTargetMachine.cpp b/llvm/lib/Target/ARM/ARMTargetMachine.cpp index 6a7f4814d1c..bc2525b6b42 100644 --- a/llvm/lib/Target/ARM/ARMTargetMachine.cpp +++ b/llvm/lib/Target/ARM/ARMTargetMachine.cpp @@ -239,8 +239,10 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT, this->Options.EABIVersion = EABI::EABI5; } - if (TT.isOSBinFormatMachO()) + if (TT.isOSBinFormatMachO()) { this->Options.TrapUnreachable = true; + this->Options.NoTrapAfterNoreturn = true; + } initAsmInfo(); } |
