diff options
| author | Kristof Beyls <kristof.beyls@arm.com> | 2017-06-28 07:07:03 +0000 |
|---|---|---|
| committer | Kristof Beyls <kristof.beyls@arm.com> | 2017-06-28 07:07:03 +0000 |
| commit | eecb353d0e25bae018bad815f9169c73666af5bd (patch) | |
| tree | 6ff0e4920f837efd600ae00ba9dbaa896d552792 /llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll | |
| parent | 7a82cffd68bccfea62762873375e30503dcc0bf8 (diff) | |
| download | bcm5719-llvm-eecb353d0e25bae018bad815f9169c73666af5bd.tar.gz bcm5719-llvm-eecb353d0e25bae018bad815f9169c73666af5bd.zip | |
[ARM] Make -mcpu=generic schedule for an in-order core (Cortex-A8).
The benchmarking summarized in
http://lists.llvm.org/pipermail/llvm-dev/2017-May/113525.html showed
this is beneficial for a wide range of cores.
As is to be expected, quite a few small adaptations are needed to the
regressions tests, as the difference in scheduling results in:
- Quite a few small instruction schedule differences.
- A few changes in register allocation decisions caused by different
instruction schedules.
- A few changes in IfConversion decisions, due to a difference in
instruction schedule and/or the estimated cost of a branch mispredict.
llvm-svn: 306514
Diffstat (limited to 'llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll')
| -rw-r--r-- | llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll b/llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll index 2ec50b9d334..cfbef7bd429 100644 --- a/llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll +++ b/llvm/test/CodeGen/ARM/cortex-a57-misched-basic.ll @@ -8,14 +8,14 @@ ; CHECK: ********** MI Scheduling ********** ; CHECK: foo:BB#0 entry -; GENERIC: SDIV +; GENERIC: LDRi12 ; GENERIC: Latency : 1 ; GENERIC: EORrr ; GENERIC: Latency : 1 -; GENERIC: LDRi12 -; GENERIC: Latency : 4 ; GENERIC: ADDrr ; GENERIC: Latency : 1 +; GENERIC: SDIV +; GENERIC: Latency : 0 ; GENERIC: SUBrr ; GENERIC: Latency : 1 |
