Changes in directory llvm/lib/CodeGen:
IntrinsicLowering.cpp updated: 1.62 -> 1.63
---
Log message:
Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types. This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
shl i32 %X, 1
instead of
shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.
---
Diffs of the changes: (+32 -32)
IntrinsicLowering.cpp | 64 +++++++++++++++++++++++++-------------------------
1 files changed, 32 insertions(+), 32 deletions(-)
Index: llvm/lib/CodeGen/IntrinsicLowering.cpp
diff -u llvm/lib/CodeGen/IntrinsicLowering.cpp:1.62
llvm/lib/CodeGen/IntrinsicLowering.cpp:1.63
--- llvm/lib/CodeGen/IntrinsicLowering.cpp:1.62 Tue Jan 30 14:08:37 2007
+++ llvm/lib/CodeGen/IntrinsicLowering.cpp Thu Feb 1 20:16:22 2007
@@ -118,22 +118,22 @@
switch(BitSize) {
default: assert(0 && "Unhandled type size of value to byteswap!");
case 16: {
- Value *Tmp1 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
- Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.1",IP);
+ Value *Tmp1 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),8),"bswap.2",IP);
+ Value *Tmp2 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),8),"bswap.1",IP);
V = BinaryOperator::createOr(Tmp1, Tmp2, "bswap.i16", IP);
break;
}
case 32: {
- Value *Tmp4 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.4", IP);
- Value *Tmp3 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.3",IP);
- Value *Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.2",IP);
- Value *Tmp1 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.1", IP);
+ Value *Tmp4 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),24),"bswap.4", IP);
+ Value *Tmp3 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),8),"bswap.3",IP);
+ Value *Tmp2 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),8),"bswap.2",IP);
+ Value *Tmp1 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),24),"bswap.1", IP);
Tmp3 = BinaryOperator::createAnd(Tmp3,
ConstantInt::get(Type::Int32Ty, 0xFF0000),
"bswap.and3", IP);
@@ -146,22 +146,22 @@
break;
}
case 64: {
- Value *Tmp8 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,56),"bswap.8", IP);
- Value *Tmp7 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,40),"bswap.7", IP);
- Value *Tmp6 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.6", IP);
- Value *Tmp5 = new ShiftInst(Instruction::Shl, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.5", IP);
- Value* Tmp4 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,8),"bswap.4", IP);
- Value* Tmp3 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,24),"bswap.3", IP);
- Value* Tmp2 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,40),"bswap.2", IP);
- Value* Tmp1 = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty,56),"bswap.1", IP);
+ Value *Tmp8 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),56),"bswap.8", IP);
+ Value *Tmp7 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),40),"bswap.7", IP);
+ Value *Tmp6 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),24),"bswap.6", IP);
+ Value *Tmp5 = BinaryOperator::create(Instruction::Shl, V,
+ ConstantInt::get(V->getType(),8),"bswap.5", IP);
+ Value* Tmp4 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),8),"bswap.4", IP);
+ Value* Tmp3 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),24),"bswap.3", IP);
+ Value* Tmp2 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),40),"bswap.2", IP);
+ Value* Tmp1 = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(),56),"bswap.1", IP);
Tmp7 = BinaryOperator::createAnd(Tmp7,
ConstantInt::get(Type::Int64Ty,
0xFF000000000000ULL),
@@ -210,8 +210,8 @@
for (unsigned i = 1, ct = 0; i != BitSize; i <<= 1, ++ct) {
Value *MaskCst = ConstantInt::get(V->getType(), MaskValues[ct]);
Value *LHS = BinaryOperator::createAnd(V, MaskCst, "cppop.and1", IP);
- Value *VShift = new ShiftInst(Instruction::LShr, V,
- ConstantInt::get(Type::Int8Ty, i), "ctpop.sh", IP);
+ Value *VShift = BinaryOperator::create(Instruction::LShr, V,
+ ConstantInt::get(V->getType(), i), "ctpop.sh", IP);
Value *RHS = BinaryOperator::createAnd(VShift, MaskCst, "cppop.and2", IP);
V = BinaryOperator::createAdd(LHS, RHS, "ctpop.step", IP);
}
@@ -225,8 +225,8 @@
unsigned BitSize = V->getType()->getPrimitiveSizeInBits();
for (unsigned i = 1; i != BitSize; i <<= 1) {
- Value *ShVal = ConstantInt::get(Type::Int8Ty, i);
- ShVal = new ShiftInst(Instruction::LShr, V, ShVal, "ctlz.sh", IP);
+ Value *ShVal = ConstantInt::get(V->getType(), i);
+ ShVal = BinaryOperator::create(Instruction::LShr, V, ShVal, "ctlz.sh", IP);
V = BinaryOperator::createOr(V, ShVal, "ctlz.step", IP);
}
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