How to insert the first instruction to an empty basic block in llvm
up vote
0
down vote
favorite
Inserting a new llvm instruction to a non empty basic block
is indeed pretty straight forward: simply iterate existing instructions
until you reach the desired place and use the
newInst->insertBefore(thatInst);
command. However, when I look at the BasicBlock interface here,
I can't seem to find how to insert that first instruction?
I mean when a fresh basic block has just been allocated and it is still empty, how does one insert the first instruction inside? thanks!
llvm llvm-ir bitcode
asked Nov 11 at 11:14
OrenIshShalom
915722
add a comment |
up vote
0
down vote
favorite
Inserting a new llvm instruction to a non empty basic block
is indeed pretty straight forward: simply iterate existing instructions
until you reach the desired place and use the
newInst->insertBefore(thatInst);
command. However, when I look at the BasicBlock interface here,
I can't seem to find how to insert that first instruction?
I mean when a fresh basic block has just been allocated and it is still empty, how does one insert the first instruction inside? thanks!
llvm llvm-ir bitcode
asked Nov 11 at 11:14
OrenIshShalom
915722
add a comment |
up vote
0
down vote
favorite
up vote
0
down vote
favorite
Inserting a new llvm instruction to a non empty basic block
is indeed pretty straight forward: simply iterate existing instructions
until you reach the desired place and use the
newInst->insertBefore(thatInst);
command. However, when I look at the BasicBlock interface here,
I can't seem to find how to insert that first instruction?
I mean when a fresh basic block has just been allocated and it is still empty, how does one insert the first instruction inside? thanks!
llvm llvm-ir bitcode
asked Nov 11 at 11:14
OrenIshShalom
915722
Inserting a new llvm instruction to a non empty basic block
is indeed pretty straight forward: simply iterate existing instructions
until you reach the desired place and use the
newInst->insertBefore(thatInst);
command. However, when I look at the BasicBlock interface here,
I can't seem to find how to insert that first instruction?
I mean when a fresh basic block has just been allocated and it is still empty, how does one insert the first instruction inside? thanks!
llvm llvm-ir bitcode
llvm llvm-ir bitcode
asked Nov 11 at 11:14
OrenIshShalom
915722
asked Nov 11 at 11:14
OrenIshShalom
915722
asked Nov 11 at 11:14
OrenIshShalom
915722
asked Nov 11 at 11:14
OrenIshShalom
915722
asked Nov 11 at 11:14
OrenIshShalom
915722
915722
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
You can use an IRBuilder like this:
llvm::IRBuilder builder(basicBlock);
builder.createAdd(...); // Replace "Add" as appropriate
Or, if you want to insert an already existing instruction object:
builder.insert(instruction);
answered Nov 11 at 14:54
sepp2k
290k36592604
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
You can use an IRBuilder like this:
llvm::IRBuilder builder(basicBlock);
builder.createAdd(...); // Replace "Add" as appropriate
Or, if you want to insert an already existing instruction object:
builder.insert(instruction);
answered Nov 11 at 14:54
sepp2k
290k36592604
add a comment |
up vote
2
down vote
accepted
You can use an IRBuilder like this:
llvm::IRBuilder builder(basicBlock);
builder.createAdd(...); // Replace "Add" as appropriate
Or, if you want to insert an already existing instruction object:
builder.insert(instruction);
answered Nov 11 at 14:54
sepp2k
290k36592604
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
You can use an IRBuilder like this:
llvm::IRBuilder builder(basicBlock);
builder.createAdd(...); // Replace "Add" as appropriate
Or, if you want to insert an already existing instruction object:
builder.insert(instruction);
answered Nov 11 at 14:54
sepp2k
290k36592604
You can use an IRBuilder like this:
llvm::IRBuilder builder(basicBlock);
builder.createAdd(...); // Replace "Add" as appropriate
Or, if you want to insert an already existing instruction object:
builder.insert(instruction);
answered Nov 11 at 14:54
sepp2k
290k36592604
answered Nov 11 at 14:54
sepp2k
290k36592604
answered Nov 11 at 14:54
sepp2k
290k36592604
answered Nov 11 at 14:54
sepp2k
290k36592604
290k36592604
add a comment |
add a comment |
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