Displaying 3 results from an estimated 3 matches for "curlocal".
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curlocale
2019 Jul 03
2
optimisation issue in an llvm IR pass
Hello,
I have an optimisation issue in an llvm IR pass - the issue being that
unnecessary instructions are generated in the final assembly (with -O3).
I want to create the following assembly snippet:
mov dl,BYTE PTR [rsi+rdi*1]
add dl,0x1
adc dl,0x0
mov BYTE PTR [rsi+rdi*1],dl
however what is created is (variant #1):
mov dl,BYTE PTR [rsi+rdx*1]
add dl,0x1
cmp
2019 Jul 03
3
optimisation issue in an llvm IR pass
Hi Craig,
On 03.07.19 17:33, Craig Topper wrote:
> Don't the CreateICmp calls return a Value* with an i1 type? But then
> they are added to an i8 type? Not sure that works.
I had that initially:
auto cf = IRB.CreateICmpULT(Incr, ConstantInt::get(Int8Ty, 1));
auto carry = IRB.CreateZExt(cf, Int8Ty);
Incr = IRB.CreateAdd(Incr, carry);
it makes no difference to the generated assembly
2014 Aug 27
6
[LLVMdev] Minimizing -gmlt
In an effort to fix inlined information for backtraces under DWARF Fission
in the absence of the split DWARF (.dwo) files, I'm planning on adding
-gmlt-like data to the .o file, alongside the skeleton CU.
Since that will involve teaching the LLVM about -gmlt (moreso than it
already has - the debug info LLVM metadata already describes -gmlt for the
purposes of omitting pubnames in that case) I