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137 lines
4.5 KiB
ArmAsm
137 lines
4.5 KiB
ArmAsm
## Test the control of aggressiveness of 3-way splitting by -call-scale.
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## When -call-scale=0.0, the tested function is 2-way splitted.
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## When -call-scale=1.0, the tested function is 3-way splitted with 5 blocks
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## in warm because of the increased benefit of shortening the call edges.
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## When -call-scale=1000.0, the tested function is still 3-way splitted with
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## 5 blocks in warm because cdsplit does not allow hot-warm splitting to break
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## a fall through branch from a basic block to its most likely successor.
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# RUN: llvm-mc --filetype=obj --triple x86_64-unknown-unknown %s -o %t.o
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# RUN: link_fdata %s %t.o %t.fdata
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# RUN: llvm-strip --strip-unneeded %t.o
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# RUN: %clang %cflags %t.o -o %t.exe -Wl,-q
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# RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --split-strategy=cdsplit \
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# RUN: --call-scale=0.0 --print-split --print-only=chain \
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# RUN: --data=%t.fdata --reorder-blocks=ext-tsp \
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# RUN: 2>&1 | FileCheck --check-prefix=LOWINCENTIVE %s
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# RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --split-strategy=cdsplit \
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# RUN: --call-scale=1.0 --print-split --print-only=chain \
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# RUN: --data=%t.fdata --reorder-blocks=ext-tsp \
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# RUN: 2>&1 | FileCheck --check-prefix=MEDINCENTIVE %s
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# RUN: llvm-bolt %t.exe -o %t.bolt --split-functions --split-strategy=cdsplit \
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# RUN: --call-scale=1000.0 --print-split --print-only=chain \
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# RUN: --data=%t.fdata --reorder-blocks=ext-tsp \
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# RUN: 2>&1 | FileCheck --check-prefix=HIGHINCENTIVE %s
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# LOWINCENTIVE: Binary Function "chain" after split-functions
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# LOWINCENTIVE: {{^\.Ltmp5}}
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# LOWINCENTIVE: ------- HOT-COLD SPLIT POINT -------
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# LOWINCENTIVE: {{^\.LFT1}}
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# MEDINCENTIVE: Binary Function "chain" after split-functions
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# MEDINCENTIVE: {{^\.Ltmp1}}
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# MEDINCENTIVE: ------- HOT-COLD SPLIT POINT -------
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# MEDINCENTIVE: {{^\.LFT1}}
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# MEDINCENTIVE: ------- HOT-COLD SPLIT POINT -------
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# MEDINCENTIVE: {{^\.Ltmp0}}
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# MEDINCENTIVE: {{^\.Ltmp2}}
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# MEDINCENTIVE: {{^\.Ltmp3}}
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# MEDINCENTIVE: {{^\.Ltmp4}}
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# MEDINCENTIVE: {{^\.Ltmp5}}
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# HIGHINCENTIVE: Binary Function "chain" after split-functions
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# HIGHINCENTIVE: {{^\.Ltmp1}}
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# HIGHINCENTIVE: ------- HOT-COLD SPLIT POINT -------
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# HIGHINCENTIVE: {{^\.LFT1}}
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# HIGHINCENTIVE: ------- HOT-COLD SPLIT POINT -------
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# HIGHINCENTIVE: {{^\.Ltmp0}}
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# HIGHINCENTIVE: {{^\.Ltmp2}}
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# HIGHINCENTIVE: {{^\.Ltmp3}}
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# HIGHINCENTIVE: {{^\.Ltmp4}}
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# HIGHINCENTIVE: {{^\.Ltmp5}}
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.text
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.globl chain
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.type chain, @function
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chain:
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pushq %rbp
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movq %rsp, %rbp
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cmpl $2, %edi
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LLentry_LLchain_start:
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jge LLchain_start
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# FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLchain_start# 0 10
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# FDATA: 1 chain #LLentry_LLchain_start# 1 chain #LLfast# 0 500
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LLfast:
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movl $5, %eax
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LLfast_LLexit:
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jmp LLexit
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# FDATA: 1 chain #LLfast_LLexit# 1 chain #LLexit# 0 500
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LLchain_start:
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movl $10, %eax
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LLchain_start_LLchain1:
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jge LLchain1
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# FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLchain1# 0 10
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# FDATA: 1 chain #LLchain_start_LLchain1# 1 chain #LLcold# 0 0
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LLcold:
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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LLchain1:
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addl $1, %eax
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LLchain1_LLchain2:
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jmp LLchain2
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# FDATA: 1 chain #LLchain1_LLchain2# 1 chain #LLchain2# 0 10
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LLchain2:
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addl $1, %eax
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LLchain2_LLchain3:
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jmp LLchain3
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# FDATA: 1 chain #LLchain2_LLchain3# 1 chain #LLchain3# 0 10
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LLchain3:
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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LLchain3_LLchain4:
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jmp LLchain4
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# FDATA: 1 chain #LLchain3_LLchain4# 1 chain #LLchain4# 0 10
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LLchain4:
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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addl $1, %eax
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LLchain4_LLexit:
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jmp LLexit
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# FDATA: 1 chain #LLchain4_LLexit# 1 chain #LLexit# 0 10
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LLexit:
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popq %rbp
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ret
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LLchain_end:
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.size chain, LLchain_end-chain
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.globl main
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.type main, @function
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main:
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pushq %rbp
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movq %rsp, %rbp
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movl $1, %edi
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LLmain_chain1:
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call chain
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# FDATA: 1 main #LLmain_chain1# 1 chain 0 0 500
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movl $4, %edi
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LLmain_chain2:
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call chain
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# FDATA: 1 main #LLmain_chain2# 1 chain 0 0 10
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xorl %eax, %eax
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popq %rbp
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retq
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.Lmain_end:
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.size main, .Lmain_end-main
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