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Revert "ARM: Enable MachineScheduler and disable PostRAScheduler for swift."

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This reverts commit r242500.

It broke some internal tests and Matthias asked me to revert it while he
is investigating.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@242553 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Adam Nemet
2015-07-17 18:14:19 +00:00
parent 63f73d7b80
commit fadee632e1
10 changed files with 1069 additions and 48 deletions
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1038
lib/Target/ARM/ARMScheduleSwift.td
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File diff suppressed because it is too large Load Diff

11
lib/Target/ARM/ARMSubtarget.cpp
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@@ -319,19 +319,8 @@ bool ARMSubtarget::hasSinCos() const {
return getTargetTriple().isiOS() && !getTargetTriple().isOSVersionLT(7, 0);
}
bool ARMSubtarget::enableMachineScheduler() const {
// Enable the MachineScheduler before register allocation for out-of-order
// architectures where we do not use the PostRA scheduler anymore (for now
// restricted to swift).
return getSchedModel().isOutOfOrder() && isSwift();
}
// This overrides the PostRAScheduler bit in the SchedModel for any CPU.
bool ARMSubtarget::enablePostRAScheduler() const {
// No need for PostRA scheduling on out of order CPUs (for now restricted to
// swift).
if (getSchedModel().isOutOfOrder() && isSwift())
return false;
return (!isThumb() || hasThumb2());
}

3
lib/Target/ARM/ARMSubtarget.h
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@@ -433,9 +433,6 @@ public:
/// compiler runtime or math libraries.
bool hasSinCos() const;
/// Returns true if machine scheduler should be enabled.
bool enableMachineScheduler() const override;
/// True for some subtargets at > -O0.
bool enablePostRAScheduler() const override;