[AArch64] Enable software pipelining for the Cortex-A320

[saturn691]

Software pipelining gives mostly positive performance improvements for the Cortex-A320. This enables MachinePipeliner for default for the Cortex-A320 and keeps the behaviour of -aarch64-enable-pipeliner for other CPUs.

[github-actions]

🐧 Linux x64 Test Results

• 176194 tests passed
• 3547 tests skipped
• 3 tests failed

Failed Tests

(click on a test name to see its output)

LLVM

LLVM.CodeGen/AArch64/O3-pipeline.ll

Exit Code: 1

Command Output (stdout):
--
# RUN: at line 1
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --debugify-and-strip-all-safe=0 -mtriple=arm64-- -O3 -debug-pass=Structure < /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/O3-pipeline.ll -o /dev/null 2>&1 |      grep -v "Verify generated machine code" | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/O3-pipeline.ll
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --debugify-and-strip-all-safe=0 -mtriple=arm64-- -O3 -debug-pass=Structure -o /dev/null
# note: command had no output on stdout or stderr
# executed command: grep -v 'Verify generated machine code'
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/O3-pipeline.ll
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/O3-pipeline.ll:176:15: error: CHECK-NEXT: is not on the line after the previous match
# | ; CHECK-NEXT: Detect Dead Lanes
# |               ^
# | <stdin>:177:2: note: 'next' match was here
# |  Detect Dead Lanes
# |  ^
# | <stdin>:170:35: note: previous match ended here
# |  AArch64 Dead register definitions
# |                                   ^
# | <stdin>:171:1: note: non-matching line after previous match is here
# |  MachineDominator Tree Construction
# | ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/O3-pipeline.ll
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |             .
# |             .
# |             .
# |           165:  Machine Cycle Info Analysis 
# |           166:  Machine code sinking 
# |           167:  Peephole Optimizations 
# |           168:  Remove dead machine instructions 
# |           169:  AArch64 MI Peephole Optimization pass 
# |           170:  AArch64 Dead register definitions 
# | next:176'0                                      {   search range start (exclusive)
# |           171:  MachineDominator Tree Construction 
# |           172:  Slot index numbering 
# |           173:  Live Interval Analysis 
# |           174:  Lazy Machine Block Frequency Analysis 
# |           175:  Machine Optimization Remark Emitter 
# |           176:  Modulo Software Pipelining 
# |           177:  Detect Dead Lanes 
# | next:176'1      !~~~~~~~~~~~~~~~~   error: match on wrong line
# |           178:  Init Undef Pass 
# |           179:  Process Implicit Definitions 
# |           180:  Remove unreachable machine basic blocks 
# |           181:  Live Variable Analysis 
# |           182:  MachineDominator Tree Construction 
# |             .
# |             .
# |             .
# |           277:  Natural Loop Information 
# |           278:  Scalar Evolution Analysis 
# |           279:  Stack Safety Local Analysis 
# |           280: Pass Arguments: -domtree 
# |           281:  FunctionPass Manager 
# |           282:  Dominator Tree Construction 
# | next:176'2                                  } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

LLVM.CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir

Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=aarch64 /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir -run-pass=pipeliner -pipeliner-mve-cg -o -| /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=aarch64 /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir -run-pass=pipeliner -pipeliner-mve-cg -o -
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir:11:16: error: CHECK-NEXT: expected string not found in input
# |  ; CHECK-NEXT: successors: %bb.13(0x80000000)
# |                ^
# | <stdin>:88:7: note: scanning from here
# |  bb.0:
# |       ^
# | <stdin>:89:2: note: possible intended match here
# |  successors: %bb.1(0x80000000)
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals-1.mir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            .
# |            .
# |            .
# |           83: callSites: [] 
# |           84: debugValueSubstitutions: [] 
# |           85: constants: [] 
# |           86: machineFunctionInfo: {} 
# |           87: body: | 
# |           88:  bb.0: 
# | next:11'0          {   search range start (exclusive)
# | next:11'1              error: no match found in search range
# |           89:  successors: %bb.1(0x80000000) 
# | next:11'2      ?                               possible intended match
# |           90:  liveins: $x0 
# |           91:   
# |           92:  %0:gpr64common = COPY $x0 
# |           93:  %1:gpr64sp = COPY $xzr 
# |           94:  %2:gpr64all = COPY %1 
# |            .
# |            .
# |            .
# |          139:  %13:fpr64 = nofpexcept FADDDrr %18, %20, implicit $fpcr 
# |          140:  %21:gpr64 = ADDSXri %16, 1, 0, implicit-def $nzcv 
# |          141:  %17:gpr64all = COPY %21 
# |          142:  Bcc 2, %bb.5, implicit $nzcv 
# |          143:  B %bb.6 
# |          144: ... 
# | next:11'3         } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

LLVM.CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir

Exit Code: 1

Command Output (stdout):
--
# RUN: at line 2
/home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=aarch64 /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir -run-pass=pipeliner -o - | /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/llc --mtriple=aarch64 /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir -run-pass=pipeliner -o -
# note: command had no output on stdout or stderr
# executed command: /home/gha/actions-runner/_work/llvm-project/llvm-project/build/bin/FileCheck /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir
# .---command stderr------------
# | /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir:11:16: error: CHECK-NEXT: expected string not found in input
# |  ; CHECK-NEXT: successors: %bb.3(0x80000000)
# |                ^
# | <stdin>:78:7: note: scanning from here
# |  bb.0:
# |       ^
# | <stdin>:79:2: note: possible intended match here
# |  successors: %bb.1(0x80000000)
# |  ^
# | 
# | Input file: <stdin>
# | Check file: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/CodeGen/AArch64/aarch64-swp-ws-live-intervals.mir
# | 
# | -dump-input=help explains the following input dump.
# | 
# | Input was:
# | <<<<<<
# |            .
# |            .
# |            .
# |           73: callSites: [] 
# |           74: debugValueSubstitutions: [] 
# |           75: constants: [] 
# |           76: machineFunctionInfo: {} 
# |           77: body: | 
# |           78:  bb.0: 
# | next:11'0          {   search range start (exclusive)
# | next:11'1              error: no match found in search range
# |           79:  successors: %bb.1(0x80000000) 
# | next:11'2      ?                               possible intended match
# |           80:  liveins: $x0 
# |           81:   
# |           82:  %0:gpr64common = COPY $x0 
# |           83:  %1:fpr64 = FMOVD0 
# |           84:  %2:gpr32 = MOVi32imm 1 
# |            .
# |            .
# |            .
# |           99:  Bcc 1, %bb.1, implicit $nzcv 
# |          100:  B %bb.2 
# |          101:   
# |          102:  bb.2: 
# |          103:  RET_ReallyLR 
# |          104: ... 
# | next:11'3         } search range end (exclusive)
# | >>>>>>
# `-----------------------------
# error: command failed with exit status: 1

--

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