3b16630c26
This PR depends on https://github.com/llvm/llvm-project/pull/90260 We changed the order in which functions are outlined in Machine Outliner. The formula for priority is found via a black-box Bayesian optimization toolbox. Using this formula for sorting consistently reduces the uncompressed size of large real-world mobile apps. We also ran a few benchmarks using LLVM test suites, and showed that sorting by priority consistently reduces the text segment size. |run (CTMark/) |baseline (1)|priority (2)|diff (1 -> 2)| |----------------|------------|------------|-------------| |lencod |349624 |349264 |-0.1030% | |SPASS |219672 |219480 |-0.0874% | |kc |271956 |251200 |-7.6321% | |sqlite3 |223920 |223708 |-0.0947% | |7zip-benchmark |405364 |402624 |-0.6759% | |bullet |139820 |139500 |-0.2289% | |consumer-typeset|295684 |290196 |-1.8560% | |pairlocalalign |72236 |72092 |-0.1993% | |tramp3d-v4 |189572 |189292 |-0.1477% | This is part of an enhanced version of machine outliner -- see [RFC](https://discourse.llvm.org/t/rfc-enhanced-machine-outliner-part-1-fulllto-part-2-thinlto-nolto-to-come/78732).
207 lines
6.4 KiB
YAML
207 lines
6.4 KiB
YAML
# The content of this test is modfied upon the output obtained from running
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# `bin/llc -O2 -stop-before=machine-outliner <path_to_llvm_project>/llvm/test/CodeGen/AArch64/machine-outliner-sort-per-priority.ll -o -`
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# RUN: llc -mtriple=aarch64 -run-pass=machine-outliner -verify-machineinstrs %s -o - | FileCheck %s
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--- |
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declare i32 @foo()
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define void @f1() #0 { ret void }
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define void @f2() #0 { ret void }
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define void @f3() #0 { ret void }
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define void @f4() #0 { ret void }
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define void @f5() #0 { ret void }
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define void @f6() #0 { ret void }
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attributes #0 = { minsize }
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...
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---
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# CHECK-LABEL: name: f1
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NEXT: $w5 = MOVZWi 11, 0
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# CHECK-NEXT: TCRETURNdi @OUTLINED_FUNCTION_0
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name: f1
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 11, 0
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$w6 = MOVZWi 6, 0
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$w7 = MOVZWi 7, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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---
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# CHECK-LABEL: name: f2
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NEXT: $w5 = MOVZWi 12, 0
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# CHECK-NEXT: TCRETURNdi @OUTLINED_FUNCTION_0
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name: f2
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 12, 0
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$w6 = MOVZWi 6, 0
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$w7 = MOVZWi 7, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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---
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# CHECK-LABEL: name: f3
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NEXT: $w5 = MOVZWi 13, 0
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# CHECK-NEXT: TCRETURNdi @OUTLINED_FUNCTION_0
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name: f3
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 13, 0
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$w6 = MOVZWi 6, 0
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$w7 = MOVZWi 7, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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---
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# CHECK-LABEL: name: f4
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NEXT: $w5 = MOVZWi 14, 0
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# CHECK-NEXT: TCRETURNdi @OUTLINED_FUNCTION_0
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name: f4
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 14, 0
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$w6 = MOVZWi 6, 0
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$w7 = MOVZWi 7, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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---
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# CHECK-LABEL: name: f5
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NOT: @OUTLINED_FUNCTION_0
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name: f5
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 15, 0
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$w6 = MOVZWi 8, 0
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$w7 = MOVZWi 9, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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---
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# CHECK-LABEL: name: f6
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $lr
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $x5 = ORRXrs $xzr, $lr, 0
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# CHECK-NEXT: BL @OUTLINED_FUNCTION_1
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# CHECK-NEXT: $lr = ORRXrs $xzr, $x5, 0
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# CHECK-NOT: @OUTLINED_FUNCTION_0
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name: f6
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tracksRegLiveness: true
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frameInfo:
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isCalleeSavedInfoValid: true
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machineFunctionInfo:
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hasRedZone: false
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body: |
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bb.0:
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$w0 = MOVZWi 1, 0
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$w1 = MOVZWi 2, 0
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$w2 = MOVZWi 3, 0
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$w3 = MOVZWi 4, 0
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$w4 = MOVZWi 5, 0
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$w5 = MOVZWi 16, 0
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$w6 = MOVZWi 9, 0
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$w7 = MOVZWi 8, 0
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TCRETURNdi @foo, 0, csr_darwin_aarch64_aapcs, implicit $sp, implicit killed $w0, implicit killed $w1, implicit killed $w2, implicit killed $w3, implicit killed $w4, implicit killed $w5, implicit killed $w6, implicit killed $w7
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...
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# CHECK-LABEL: name: OUTLINED_FUNCTION_0
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $lr, $d8, $d9, $d10, $d11, $d12, $d13, $d14, $d15, $w0, $w1, $w2, $w3, $w4, $w5
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $w6 = MOVZWi 6, 0
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# CHECK-NEXT: $w7 = MOVZWi 7, 0
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# CHECK-LABEL: name: OUTLINED_FUNCTION_1
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# CHECK-LABEL: bb.0:
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# CHECK-NEXT: liveins: $x19, $x20, $x21, $x22, $x23, $x24, $x25, $x26, $x27, $x28, $lr, $d8, $d9, $d10, $d11, $d12, $d13, $d14, $d15
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# CHECK-NEXT: {{ $}}
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# CHECK-NEXT: $w0 = MOVZWi 1, 0
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# CHECK-NEXT: $w1 = MOVZWi 2, 0
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# CHECK-NEXT: $w2 = MOVZWi 3, 0
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# CHECK-NEXT: $w3 = MOVZWi 4, 0
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# CHECK-NEXT: $w4 = MOVZWi 5, 0
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# CHECK-NEXT: RET $lr
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