4959e8a1da
This change speeds up fragment matching for large BOLTed binaries where all fragments of global parent functions are put under `bolt-pseudo.o` file symbol: - before: iterating over symbols under `bolt-pseudo.o` only to fail to find a parent, - after: bail out immediately and use a global parent by name. Test Plan: NFC, updated register-fragments-bolt-symbols.s
69 lines
3.1 KiB
ArmAsm
69 lines
3.1 KiB
ArmAsm
## Test the heuristics for matching BOLT-added split functions.
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# RUN: llvm-mc --filetype=obj --triple x86_64-unknown-unknown %S/cdsplit-symbol-names.s -o %t.main.o
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# RUN: llvm-mc --filetype=obj --triple x86_64-unknown-unknown %s -o %t.chain.o
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# RUN: link_fdata %S/cdsplit-symbol-names.s %t.main.o %t.fdata
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# RUN: llvm-strip --strip-unneeded %t.main.o
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## Check warm fragment name matching (produced by cdsplit)
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# RUN: %clang %cflags %t.main.o -o %t.warm.exe -Wl,-q
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# RUN: llvm-bolt %t.warm.exe -o %t.warm.bolt --split-functions --split-strategy=cdsplit \
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# RUN: --call-scale=2 --data=%t.fdata --reorder-blocks=ext-tsp --enable-bat
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# RUN: link_fdata %s %t.warm.bolt %t.preagg.warm PREAGGWARM
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# PREAGGWARM: B X:0 #chain.warm# 1 0
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# RUN: perf2bolt %t.warm.bolt -p %t.preagg.warm --pa -o %t.warm.fdata -w %t.warm.yaml \
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# RUN: -v=1 | FileCheck %s --check-prefix=CHECK-BOLT-WARM
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# RUN: FileCheck %s --input-file %t.warm.fdata --check-prefix=CHECK-FDATA-WARM
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# RUN: FileCheck %s --input-file %t.warm.yaml --check-prefix=CHECK-YAML-WARM
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# CHECK-BOLT-WARM: marking chain.warm/1(*2) as a fragment of chain
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# CHECK-FDATA-WARM: chain
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# CHECK-YAML-WARM: chain
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# RUN: sed -i 's|chain|chain/2|g' %t.fdata
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# RUN: llvm-objcopy --localize-symbol=chain %t.main.o
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# RUN: %clang %cflags %t.chain.o %t.main.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --split-strategy=randomN \
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# RUN: --reorder-blocks=ext-tsp --enable-bat --bolt-seed=7 --data=%t.fdata
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# RUN: llvm-objdump --syms %t.bolt | FileCheck %s --check-prefix=CHECK-SYMS
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# RUN: link_fdata %s %t.bolt %t.preagg PREAGG
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# PREAGG: B X:0 #chain.cold.0# 1 0
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# PREAGG: B X:0 #dummy# 1 0
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# RUN: perf2bolt %t.bolt -p %t.preagg --pa -o %t.bat.fdata -w %t.bat.yaml -v=1 \
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# RUN: | FileCheck %s --check-prefix=CHECK-REGISTER
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# RUN: FileCheck --input-file %t.bat.fdata --check-prefix=CHECK-FDATA %s
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# RUN: FileCheck --input-file %t.bat.yaml --check-prefix=CHECK-YAML %s
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# RUN: link_fdata --no-redefine %s %t.bolt %t.preagg2 PREAGG2
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# PREAGG2: B X:0 #chain# 1 0
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# RUN: perf2bolt %t.bolt -p %t.preagg2 --pa -o %t.bat2.fdata -w %t.bat2.yaml
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# RUN: FileCheck %s --input-file %t.bat2.yaml --check-prefix=CHECK-YAML2
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# CHECK-SYMS: l df *ABS* [[#]] chain.s
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# CHECK-SYMS: l F .bolt.org.text [[#]] chain
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# CHECK-SYMS: l F .text.cold [[#]] chain.cold.0
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# CHECK-SYMS: l F .text [[#]] chain
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# CHECK-SYMS: l df *ABS* [[#]] bolt-pseudo.o
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# CHECK-SYMS: l F .text.cold [[#]] dummy.cold.0
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# CHECK-SYMS: l F .text.cold.1 [[#]] dummy.cold.1
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# CHECK-SYMS: l F .text.cold.2 [[#]] dummy.cold.2
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# CHECK-REGISTER: BOLT-INFO: marking dummy.cold.0/1(*2) as a fragment of dummy
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# CHECK-REGISTER: BOLT-INFO: marking dummy.cold.1/1(*2) as a fragment of dummy
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# CHECK-REGISTER: BOLT-INFO: marking dummy.cold.2/1(*2) as a fragment of dummy
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# CHECK-REGISTER: BOLT-INFO: marking chain.cold.0/1(*2) as a fragment of chain/2(*2)
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# CHECK-FDATA: 0 [unknown] 0 1 chain/chain.s/2 10 0 1
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# CHECK-YAML: - name: 'chain/chain.s/2'
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# CHECK-YAML2: - name: 'chain/chain.s/1'
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## non-BAT function has non-zero insns:
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# CHECK-YAML2: insns: 1
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.file "chain.s"
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.text
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.type chain, @function
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chain:
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ret
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.size chain, .-chain
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