Changes in directory llvm/include/llvm/Target:
TargetLowering.h updated: 1.95 -> 1.96
---
Log message:
- Remove isSetCCExpensive() etc. These are no longer used.
- Add isSelectExpensive() etc. It's used to tell codegen that select is
expensive for a given target, avoid using it if possible. Currently it's only
used to expand FCOPYSIGN.
---
Diffs of the changes: (+8 -10)
TargetLowering.h | 18 ++++++++----------
1 files changed, 8 insertions(+), 10 deletions(-)
Index: llvm/include/llvm/Target/TargetLowering.h
diff -u llvm/include/llvm/Target/TargetLowering.h:1.95
llvm/include/llvm/Target/TargetLowering.h:1.96
--- llvm/include/llvm/Target/TargetLowering.h:1.95 Sat Dec 30 23:23:18 2006
+++ llvm/include/llvm/Target/TargetLowering.h Fri Jan 5 17:31:08 2007
@@ -89,9 +89,9 @@
/// codegen.
bool usesGlobalOffsetTable() const { return UsesGlobalOffsetTable; }
- /// isSetCCExpensive - Return true if the setcc operation is expensive for
+ /// isSelectExpensive - Return true if the select operation is expensive for
/// this target.
- bool isSetCCExpensive() const { return SetCCIsExpensive; }
+ bool isSelectExpensive() const { return SelectIsExpensive; }
/// isIntDivCheap() - Return true if integer divide is usually cheaper than
/// a sequence of several shifts, adds, and multiplies for this target.
@@ -608,10 +608,9 @@
StackPointerRegisterToSaveRestore = R;
}
- /// setSetCCIxExpensive - This is a short term hack for targets that codegen
- /// setcc as a conditional branch. This encourages the code generator to
fold
- /// setcc operations into other operations if possible.
- void setSetCCIsExpensive() { SetCCIsExpensive = true; }
+ /// SelectIsExpensive - Tells the code generator not to expand operations
+ /// into sequences that use the select operations if possible.
+ void setSelectIsExpensive() { SelectIsExpensive = true; }
/// setIntDivIsCheap - Tells the code generator that integer divide is
/// expensive, and if possible, should be replaced by an alternate sequence
@@ -890,10 +889,9 @@
OutOfRangeShiftAmount ShiftAmtHandling;
- /// SetCCIsExpensive - This is a short term hack for targets that codegen
- /// setcc as a conditional branch. This encourages the code generator to
fold
- /// setcc operations into other operations if possible.
- bool SetCCIsExpensive;
+ /// SelectIsExpensive - Tells the code generator not to expand operations
+ /// into sequences that use the select operations if possible.
+ bool SelectIsExpensive;
/// IntDivIsCheap - Tells the code generator not to expand integer divides by
/// constants into a sequence of muls, adds, and shifts. This is a hack
until
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