Displaying 2 results from an estimated 2 matches for "r332489".
2018 May 29
0
My own codegen is 2.5x slower than llc?
> On 29 May 2018, at 22:02, David Jones via llvm-dev <llvm-dev at lists.llvm.org> wrote:
>
> My back-end code generator uses LLVM 5.0.1 to optimize and generate code for x86_64.
>
> If I run it on a given sample of IR, it takes almost 5 minutes to generate object code. 95%+ of this time is spent in MergeConsecutiveStores(). (One function has a basic block with 14000
2018 May 29
4
My own codegen is 2.5x slower than llc?
My back-end code generator uses LLVM 5.0.1 to optimize and generate code
for x86_64.
If I run it on a given sample of IR, it takes almost 5 minutes to generate
object code. 95%+ of this time is spent in MergeConsecutiveStores(). (One
function has a basic block with 14000 instructions, which is a pathological
case for MergeConsecutiveStores.)
If, instead, I dump out the LLVM IR, and manually