xref: /llvm-project/llvm/test/CodeGen/ARM/cortex-a57-misched-alu.ll (revision 25528d6de70e98683722e28655d8568d5f09b5c7)
14ae7e812SJaved Absar; REQUIRES: asserts
24ae7e812SJaved Absar; RUN: llc < %s -mtriple=armv8r-eabi -mcpu=cortex-a57 -enable-misched -verify-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s
327b226fbSEugene Leviant; RUN: llc < %s -mtriple=armv8r-eabi -mcpu=cortex-a57 -mattr=+use-misched -debug-only=machine-scheduler -o - 2>&1 > /dev/null | FileCheck %s --check-prefix=POST-MISCHED
44ae7e812SJaved Absar
54ae7e812SJaved Absar; Check the latency for ALU shifted operand variants.
64ae7e812SJaved Absar;
74ae7e812SJaved Absar; CHECK:       ********** MI Scheduling **********
8*25528d6dSFrancis Visoiu Mistrih; CHECK:      foo:%bb.0 entry
94ae7e812SJaved Absar
104ae7e812SJaved Absar; ALU, basic - 1 cyc I0/I1
114ae7e812SJaved Absar; CHECK:      EORrr
124ae7e812SJaved Absar; CHECK:      rdefs left
134ae7e812SJaved Absar; CHECK-NEXT: Latency    : 1
144ae7e812SJaved Absar
154ae7e812SJaved Absar; ALU, shift by immed - 2 cyc M
164ae7e812SJaved Absar; CHECK:      ADDrsi
174ae7e812SJaved Absar; CHECK:      rdefs left
184ae7e812SJaved Absar; CHECK-NEXT: Latency    : 2
194ae7e812SJaved Absar
204ae7e812SJaved Absar; ALU, shift by register, unconditional - 2 cyc M
214ae7e812SJaved Absar; CHECK:      RSBrsr
224ae7e812SJaved Absar; CHECK:      rdefs left
234ae7e812SJaved Absar; CHECK-NEXT: Latency    : 2
244ae7e812SJaved Absar
254ae7e812SJaved Absar; ALU, shift by register, conditional - 2 cyc I0/I1
264ae7e812SJaved Absar; CHECK:      ANDrsr
274ae7e812SJaved Absar; CHECK:      rdefs left
284ae7e812SJaved Absar; CHECK-NEXT: Latency    : 2
294ae7e812SJaved Absar
304ae7e812SJaved Absar; Checking scheduling units
314ae7e812SJaved Absar
324ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
334ae7e812SJaved Absar; Skipping COPY
344ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
354ae7e812SJaved Absar; CHECK:      Scheduling
364ae7e812SJaved Absar; CHECK-SAME: ANDrsr
374ae7e812SJaved Absar; CHECK:      Ready
384ae7e812SJaved Absar; CHECK-NEXT: A57UnitI
394ae7e812SJaved Absar
404ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
414ae7e812SJaved Absar; CHECK:      Scheduling
424ae7e812SJaved Absar; CHECK-SAME: CMPri
434ae7e812SJaved Absar; CHECK:      Ready
444ae7e812SJaved Absar; CHECK-NEXT: A57UnitI
454ae7e812SJaved Absar
464ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
474ae7e812SJaved Absar; CHECK:      Scheduling
484ae7e812SJaved Absar; CHECK-SAME: RSBrsr
494ae7e812SJaved Absar; CHECK:      Ready
504ae7e812SJaved Absar; CHECK-NEXT: A57UnitM
514ae7e812SJaved Absar
524ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
534ae7e812SJaved Absar; CHECK:      Scheduling
544ae7e812SJaved Absar; CHECK-SAME: ADDrsi
554ae7e812SJaved Absar; CHECK:      Ready
564ae7e812SJaved Absar; CHECK-NEXT: A57UnitM
574ae7e812SJaved Absar
584ae7e812SJaved Absar; CHECK:      ** ScheduleDAGMILive::schedule picking next node
594ae7e812SJaved Absar; CHECK:      Scheduling
604ae7e812SJaved Absar; CHECK-SAME: EORrr
614ae7e812SJaved Absar; CHECK:      Ready
624ae7e812SJaved Absar; CHECK-NEXT: A57UnitI
634ae7e812SJaved Absar
6427b226fbSEugene Leviant; Check that post RA MI scheduler is invoked with +use-misched
6527b226fbSEugene Leviant; POST-MISCHED: Before post-MI-sched
664ae7e812SJaved Absar
674ae7e812SJaved Absartarget datalayout = "e-m:e-p:32:32-i64:64-v128:64:128-a:0:32-n32-S64"
684ae7e812SJaved Absartarget triple = "armv8r-arm-none-eabi"
694ae7e812SJaved Absar
704ae7e812SJaved Absar; Function Attrs: norecurse nounwind readnone
714ae7e812SJaved Absardefine hidden i32 @foo(i32 %a, i32 %b, i32 %c, i32 %d) local_unnamed_addr #0 {
724ae7e812SJaved Absarentry:
734ae7e812SJaved Absar  %xor = xor i32 %a, %b
744ae7e812SJaved Absar  %xor_shl = shl i32 %xor, 2
754ae7e812SJaved Absar  %add = add i32 %xor_shl, %d
764ae7e812SJaved Absar  %add_ashr = ashr i32 %add, %a
774ae7e812SJaved Absar  %sub = sub i32 %add_ashr, %a
784ae7e812SJaved Absar  %sub_lshr_pred = lshr i32 %sub, %c
794ae7e812SJaved Absar  %pred = icmp sgt i32 %a, 4
804ae7e812SJaved Absar  %and = and i32 %sub_lshr_pred, %b
814ae7e812SJaved Absar  %rv = select i1 %pred, i32 %and, i32 %d
824ae7e812SJaved Absar  ret i32 %rv
834ae7e812SJaved Absar}
844ae7e812SJaved Absar
85