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author | Chris Lattner <sabre@nondot.org> | 2008-01-07 01:56:04 +0000 |
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committer | Chris Lattner <sabre@nondot.org> | 2008-01-07 01:56:04 +0000 |
commit | 69244300b8a0112efb44b6273ecea4ca6264b8cf (patch) | |
tree | b5a0565e968d692bfa45952fe63009ff1b2be001 /lib/Target/TargetInstrInfo.cpp | |
parent | 6425f8be7263e625c2d7484eb2fb8f6643824f49 (diff) | |
download | llvm-69244300b8a0112efb44b6273ecea4ca6264b8cf.tar.gz llvm-69244300b8a0112efb44b6273ecea4ca6264b8cf.tar.bz2 llvm-69244300b8a0112efb44b6273ecea4ca6264b8cf.tar.xz |
Rename MachineInstr::getInstrDescriptor -> getDesc(), which reflects
that it is cheap and efficient to get.
Move a variety of predicates from TargetInstrInfo into
TargetInstrDescriptor, which makes it much easier to query a predicate
when you don't have TII around. Now you can use MI->getDesc()->isBranch()
instead of going through TII, and this is much more efficient anyway. Not
all of the predicates have been moved over yet.
Update old code that used MI->getInstrDescriptor()->Flags to use the
new predicates in many places.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@45674 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/TargetInstrInfo.cpp')
-rw-r--r-- | lib/Target/TargetInstrInfo.cpp | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/lib/Target/TargetInstrInfo.cpp b/lib/Target/TargetInstrInfo.cpp index d8d1578c72..ba56caa68e 100644 --- a/lib/Target/TargetInstrInfo.cpp +++ b/lib/Target/TargetInstrInfo.cpp @@ -38,14 +38,13 @@ TargetInstrInfo::~TargetInstrInfo() { } bool TargetInstrInfo::isUnpredicatedTerminator(const MachineInstr *MI) const { - const TargetInstrDescriptor *TID = MI->getInstrDescriptor(); - if (TID->Flags & M_TERMINATOR_FLAG) { - // Conditional branch is a special case. - if ((TID->Flags & M_BRANCH_FLAG) != 0 && (TID->Flags & M_BARRIER_FLAG) == 0) - return true; - if ((TID->Flags & M_PREDICABLE) == 0) - return true; - return !isPredicated(MI); - } - return false; + const TargetInstrDescriptor *TID = MI->getDesc(); + if (!TID->isTerminator()) return false; + + // Conditional branch is a special case. + if (TID->isBranch() && !TID->isBarrier()) + return true; + if (!TID->isPredicable()) + return true; + return !isPredicated(MI); } |