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author | Andrew Trick <atrick@apple.com> | 2014-06-04 07:06:27 +0000 |
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committer | Andrew Trick <atrick@apple.com> | 2014-06-04 07:06:27 +0000 |
commit | 5f22dd78584bfd0a1125d313d04660df2c9c3c47 (patch) | |
tree | e40a81c973d2201ec39ed9ff3870d21e564cef4e /lib/Target/ARM | |
parent | 0c834245566d39a29df01d6ea276e13830473d26 (diff) | |
download | llvm-5f22dd78584bfd0a1125d313d04660df2c9c3c47.tar.gz llvm-5f22dd78584bfd0a1125d313d04660df2c9c3c47.tar.bz2 llvm-5f22dd78584bfd0a1125d313d04660df2c9c3c47.tar.xz |
Add a subtarget hook: enablePostMachineScheduler.
As requested by AArch64 subtargets.
Note that this will have no effect until the
AArch64 target actually enables the pass like this:
substitutePass(&PostRASchedulerID, &PostMachineSchedulerID);
As soon as armv7 switches over, PostMachineScheduler will become the
default postRA scheduler, so this won't be necessary any more.
Targets using the old postRA schedule would then do:
substitutePass(&PostMachineSchedulerID, &PostRASchedulerID);
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@210167 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/ARM')
-rw-r--r-- | lib/Target/ARM/ARMSubtarget.cpp | 7 | ||||
-rw-r--r-- | lib/Target/ARM/ARMSubtarget.h | 3 |
2 files changed, 10 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp index 1c9dd4d49d..61c00b5930 100644 --- a/lib/Target/ARM/ARMSubtarget.cpp +++ b/lib/Target/ARM/ARMSubtarget.cpp @@ -352,6 +352,13 @@ bool ARMSubtarget::hasSinCos() const { !getTargetTriple().isOSVersionLT(7, 0); } +// Enable the PostMachineScheduler if the target selects it instead of +// PostRAScheduler. Currently only available on the command line via +// -misched-postra. +bool ARMSubtarget::enablePostMachineScheduler() const { + return PostRAScheduler; +} + bool ARMSubtarget::enablePostRAScheduler( CodeGenOpt::Level OptLevel, TargetSubtargetInfo::AntiDepBreakMode& Mode, diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h index fd106f6fc8..2694c34293 100644 --- a/lib/Target/ARM/ARMSubtarget.h +++ b/lib/Target/ARM/ARMSubtarget.h @@ -396,6 +396,9 @@ public: /// compiler runtime or math libraries. bool hasSinCos() const; + /// True for some subtargets at > -O0. + bool enablePostMachineScheduler() const; + /// enablePostRAScheduler - True at 'More' optimization. bool enablePostRAScheduler(CodeGenOpt::Level OptLevel, TargetSubtargetInfo::AntiDepBreakMode& Mode, |