search for: regallc

Displaying 4 results from an estimated 4 matches for "regallc".

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2017 Nov 10
2
Less aggressive on the first allocation of CSR if detecting an early exit
...ion would give us what we want, but there may be > [obvious] counter-examples I haven't thought of. > Thanks Nemanja for sharing your idea. I think this might cover the case I was targeting, and we may not need to be limited only in the entry block. However, I bit worry if this cause RegAllc to slow in allocating CSRs. What if we have a call-site in the early exit path and no call-site in all other blocks. Then, conservative allocation of CSRs might not be a good choice if the reg pressure is high in the all other blocks. As our first step, would it make sense to limit this only...
2017 Nov 16
2
Less aggressive on the first allocation of CSR if detecting an early exit
...y be >>> [obvious] counter-examples I haven't thought of. >> >> Thanks Nemanja for sharing your idea. I think this might cover the >> case I was targeting, and we may not need to be limited only in the >> entry block. >> However, I bit worry if this cause RegAllc to slow in allocating >> CSRs. What if we have a call-site in the early exit path and no >> call-site in all other blocks. Then, conservative allocation of CSRs >> might not be a good choice if the reg pressure is high in the all >> other blocks. As our first step, would i...
2017 Nov 17
2
Less aggressive on the first allocation of CSR if detecting an early exit
...re >> may be >> [obvious] counter-examples I haven't thought of. >> Thanks Nemanja for sharing your idea. I think this might cover the >> case I was targeting, and we may not need to be limited only in the >> entry block. >> However, I bit worry if this cause RegAllc to slow in allocating >> CSRs. What if we have a call-site in the early exit path and no >> call-site in all other blocks. Then, conservative allocation of CSRs >> might not be a good choice if the reg pressure is high in the all >> other blocks. As our first step, would i...
2017 Oct 31
2
Less aggressive on the first allocation of CSR if detecting an early exit
On 2017-10-30 21:20, Hal Finkel wrote: > On 10/30/2017 12:20 PM, junbuml at codeaurora.org wrote: >> On 2017-10-27 19:50, Hal Finkel wrote: >>> On 10/27/2017 03:32 PM, Jun Lim via llvm-dev wrote: >>> >>>> When compiling C code below for AArach64, I saw that shrink-wrapping >>>> didn't happen due to the very early uses of CSRs in the entry