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98b9ddd887
Fixed the ASAN failure from before in r338148, so recommiting. This patch enables the MachineOutliner by default in AArch64 under -Oz. The MachineOutliner offers around a 4.5% improvement on the current -Oz code size improvements. We have done work into improving the debuggability of outlined code, so that users of -Oz won't be surprised by the optimization. We have also been executing the LLVM test suite and common external tests such as the SPEC suites continuously with no issue. The outliner has a low compile-time overhead of roughly 1%. At this point, the outliner would be a really good addition to the -Oz pass pipeline! llvm-svn: 338160
72 lines
1.4 KiB
YAML
72 lines
1.4 KiB
YAML
# RUN: llc -mtriple=aarch64--- -run-pass=machine-outliner \
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# RUN: -verify-machineinstrs %s -o - | FileCheck %s
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--- |
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define void @outline_1() #0 { ret void }
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define void @outline_2() #0 { ret void }
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define void @outline_3() #0 { ret void }
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define void @dont_outline() #1 { ret void }
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attributes #0 = { noredzone minsize optsize }
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attributes #1 = { noredzone }
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...
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---
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name: outline_1
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tracksRegLiveness: true
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body: |
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bb.0:
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; CHECK-LABEL: bb.0:
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; CHECK: OUTLINED
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liveins: $w8, $wzr
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$w8 = ORRWri $wzr, 1
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$w8 = ORRWri $wzr, 2
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$w8 = ORRWri $wzr, 3
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$w8 = ORRWri $wzr, 4
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RET undef $lr
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...
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---
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name: outline_2
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tracksRegLiveness: true
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body: |
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bb.0:
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; CHECK-LABEL: bb.0:
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; CHECK: OUTLINED
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liveins: $w8, $wzr
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$w8 = ORRWri $wzr, 1
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$w8 = ORRWri $wzr, 2
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$w8 = ORRWri $wzr, 3
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$w8 = ORRWri $wzr, 4
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RET undef $lr
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...
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---
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name: outline_3
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tracksRegLiveness: true
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body: |
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bb.0:
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; CHECK-LABEL: bb.0:
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; CHECK: OUTLINED
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liveins: $w8, $wzr
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$w8 = ORRWri $wzr, 1
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$w8 = ORRWri $wzr, 2
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$w8 = ORRWri $wzr, 3
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$w8 = ORRWri $wzr, 4
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RET undef $lr
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...
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---
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name: dont_outline
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tracksRegLiveness: true
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body: |
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bb.0:
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; CHECK-LABEL: bb.0:
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; CHECK-NOT: BL
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liveins: $w8, $wzr
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$w8 = ORRWri $wzr, 1
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$w8 = ORRWri $wzr, 2
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$w8 = ORRWri $wzr, 3
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$w8 = ORRWri $wzr, 4
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RET undef $lr
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