I would like to create some tables for my instructions in the IR. For example a
table that has all the store instructions.
I want all the arguments to a function or instruction or constant etc to be
trivial.
So to fix my previous example instead of having :
call void @llvm.memcpy.i32(i8* %19, i8* getelementptr inbounds ([2 x [2
x [3 x i8]]]* @main.s, i32 0, i32 0, i32 0, i32 0), i32 12, i32 1)
i would like to have in my IR the following :
%temp = i8* getelementptr inbounds ([2 x [2 x [3 x i8]]]* @main.s, i32 0)
%temp1 = i8* getelementptr inbounds( %temp, i32 0)
%temp2 = i8* getelementptr inbounds (%temp1, i32 0)
%temp4 = i8* getelementptr inbounds (%temp3, i32 0)
call void @llvm.memcpy.i32(i8* %19, i8* %temp4, i32 12, i32 1)
What i'm asking is, if LLVM can do this for me (for example with a certain
flag while compiling the code) or i should break on my own these kind of
expressions into simpler.
Let me rephrase your question slightly. Would you be satisfied if the
disassembled llvm format showed constant expressions on their own line, without
turning them into instructions or changing the binary representation at all?
On Thu, Jul 11, 2013 at 4:05 AM, Eirini _ <eirini_dit at windowslive.com>
wrote:
Hi,
i would like to ask you, if i can get a lower-level representation than the
llvm IR.For example, having the following instruction in the llvm IR,
call void @llvm.memcpy.i32(i8* %19, i8* getelementptr inbounds ([2 x [2 x [3 x
i8]]]* @main.s, i32 0, i32 0, i32 0, i32 0), i32 12, i32 1)
i would like to get something like this (in A-normal form (without nested
instructions):
%temp = i8* getelementptr inbounds ([2 x [2 x [3 x i8]]]* @main.s, i32 0, i32
0, i32 0, i32 0)
call void @llvm.memcpy.i32(i8* %19, %temp, i32 12, i32 1)
Thanks
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