Changes in directory llvm/include/llvm/Target:
TargetInstrInfo.h updated: 1.98 -> 1.99
---
Log message:
add another target hook for branch folding.
---
Diffs of the changes: (+8 -0)
TargetInstrInfo.h | 8 ++++++++
1 files changed, 8 insertions(+)
Index: llvm/include/llvm/Target/TargetInstrInfo.h
diff -u llvm/include/llvm/Target/TargetInstrInfo.h:1.98
llvm/include/llvm/Target/TargetInstrInfo.h:1.99
--- llvm/include/llvm/Target/TargetInstrInfo.h:1.98 Tue Oct 24 12:41:22 2006
+++ llvm/include/llvm/Target/TargetInstrInfo.h Sat Oct 28 12:29:57 2006
@@ -318,6 +318,14 @@
assert(0 && "Target didn't implement TargetInstrInfo::InsertBranch!");
}
+ /// BlockHasNoFallThrough - Return true if the specified block does not
+ /// fall-through into its successor block. This is primarily used when a
+ /// branch is unanalyzable. It is useful for things like unconditional
+ /// indirect branches (jump tables).
+ virtual bool BlockHasNoFallThrough(MachineBasicBlock &MBB) const {
+ return false;
+ }
+
/// ReverseBranchCondition - Reverses the branch condition of the specified
/// condition list, returning false on success and true if it cannot be
/// reversed.
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