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d768b97424
Depends on https://reviews.llvm.org/D142861. Alternative to https://reviews.llvm.org/D137601. xxHash is much faster than djbHash. This makes a simple Rust test case with a large constant string 10% faster to compile. Previous attempts at changing this hash function (e.g. https://reviews.llvm.org/D97396) had to be reverted due to breaking tests that depended on iteration order. No additional tests fail with this patch compared to `main` when running `check-all` with `-DLLVM_ENABLE_PROJECTS="all"` (on a Linux host), so I hope I found everything that needs to be changed. Differential Revision: https://reviews.llvm.org/D142862
117 lines
4.8 KiB
Plaintext
117 lines
4.8 KiB
Plaintext
Some basic tests for supplementing instrumentation profile with sample profile.
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Test all of goo's counters will be set to PseudoHot.
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RUN: llvm-profdata merge \
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RUN: -supplement-instr-with-sample=%p/Inputs/mix_sample.proftext \
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RUN: -suppl-min-size-threshold=0 %p/Inputs/mix_instr.proftext -o %t
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RUN: llvm-profdata show %t -all-functions -counts | FileCheck %s --check-prefix=MIX1
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MIX1: goo:
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MIX1-NEXT: Hash: 0x0000000000000005
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MIX1-NEXT: Counters: 3
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MIX1-NOT: Block counts:
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MIX1-SAME: <PseudoHot>
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MIX1: foo:
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MIX1-NEXT: Hash: 0x0000000000000007
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MIX1-NEXT: Counters: 5
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MIX1-NEXT: Block counts: [12, 13, 0, 0, 0]
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MIX1: moo:
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MIX1-NEXT: Hash: 0x0000000000000009
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MIX1-NEXT: Counters: 4
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MIX1-NEXT: Block counts: [3000, 1000, 2000, 500]
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Test when the zero counter ratio of foo is higher than zero-counter-threshold.
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RUN: llvm-profdata merge \
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RUN: -supplement-instr-with-sample=%p/Inputs/mix_sample.proftext \
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RUN: -suppl-min-size-threshold=0 -zero-counter-threshold=0.5 \
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RUN: -instr-prof-cold-threshold=30 %p/Inputs/mix_instr.proftext -o %t
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RUN: llvm-profdata show %t -all-functions -counts | FileCheck %s --check-prefix=MIX2
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MIX2: goo:
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MIX2-NEXT: Hash: 0x0000000000000005
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MIX2-NEXT: Counters: 3
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MIX2-NOT: Block counts:
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MIX2-SAME: <PseudoHot>
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MIX2: foo:
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MIX2-NEXT: Hash: 0x0000000000000007
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MIX2-NEXT: Counters: 5
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MIX2-NOT: Block counts:
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MIX2-SAME: <PseudoHot>
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MIX2: moo:
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MIX2-NEXT: Hash: 0x0000000000000009
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MIX2-NEXT: Counters: 4
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MIX2-NEXT: Block counts: [3000, 1000, 2000, 500]
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Test when the zero counter ratio of foo is lower than zero-counter-threshold.
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RUN: llvm-profdata merge \
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RUN: -supplement-instr-with-sample=%p/Inputs/mix_sample.proftext \
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RUN: -suppl-min-size-threshold=0 -zero-counter-threshold=0.7 \
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RUN: -instr-prof-cold-threshold=30 %p/Inputs/mix_instr.proftext -o %t
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RUN: llvm-profdata show %t -all-functions -counts | FileCheck %s --check-prefix=MIX3
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MIX3: goo:
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MIX3-NEXT: Hash: 0x0000000000000005
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MIX3-NEXT: Counters: 3
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MIX3-NOT: Block counts:
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MIX3-SAME: <PseudoHot>
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MIX3: foo:
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MIX3-NEXT: Hash: 0x0000000000000007
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MIX3-NEXT: Counters: 5
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MIX3-NEXT: Block counts: [1384, 1500, 0, 0, 0]
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MIX3: moo:
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MIX3-NEXT: Hash: 0x0000000000000009
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MIX3-NEXT: Counters: 4
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MIX3-NEXT: Block counts: [3000, 1000, 2000, 500]
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Test foo's profile won't be adjusted because its size is smaller
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than suppl-min-size-threshold.
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RUN: llvm-profdata merge \
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RUN: -supplement-instr-with-sample=%p/Inputs/mix_sample.proftext \
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RUN: -suppl-min-size-threshold=2 -zero-counter-threshold=0.7 \
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RUN: -instr-prof-cold-threshold=30 %p/Inputs/mix_instr_small.proftext -o %t
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RUN: llvm-profdata show %t -all-functions -counts | FileCheck %s --check-prefix=MIX4
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MIX4: goo:
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MIX4-NEXT: Hash: 0x0000000000000005
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MIX4-NEXT: Counters: 3
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MIX4-NOT: Block counts:
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MIX4-SAME: <PseudoHot>
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MIX4: foo:
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MIX4-NEXT: Hash: 0x0000000000000007
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MIX4-NEXT: Counters: 1
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MIX4-NEXT: Block counts: [0]
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MIX4: moo:
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MIX4-NEXT: Hash: 0x0000000000000009
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MIX4-NEXT: Counters: 1
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MIX4-NEXT: Block counts: [0]
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Test profile summary won't be affected by pseudo counters.
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RUN: llvm-profdata merge \
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RUN: -supplement-instr-with-sample=%p/Inputs/mix_sample.proftext \
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RUN: -suppl-min-size-threshold=0 %p/Inputs/mix_instr.proftext -o %t
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RUN: llvm-profdata show %t -detailed-summary | FileCheck %s --check-prefix=MIX5
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MIX5: Instrumentation level: IR
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MIX5-NEXT: Total functions: 2
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MIX5-NEXT: Maximum function count: 3000
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MIX5-NEXT: Maximum internal block count: 2000
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MIX5-NEXT: Total number of blocks: 9
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MIX5-NEXT: Total count: 6525
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MIX5-NEXT: Detailed summary:
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MIX5-NEXT: 1 blocks with count >= 3000 account for 1 percentage of the total counts.
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MIX5-NEXT: 1 blocks with count >= 3000 account for 10 percentage of the total counts.
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MIX5-NEXT: 1 blocks with count >= 3000 account for 20 percentage of the total counts.
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MIX5-NEXT: 1 blocks with count >= 3000 account for 30 percentage of the total counts.
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MIX5-NEXT: 1 blocks with count >= 3000 account for 40 percentage of the total counts.
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MIX5-NEXT: 2 blocks with count >= 2000 account for 50 percentage of the total counts.
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MIX5-NEXT: 2 blocks with count >= 2000 account for 60 percentage of the total counts.
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MIX5-NEXT: 2 blocks with count >= 2000 account for 70 percentage of the total counts.
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MIX5-NEXT: 3 blocks with count >= 1000 account for 80 percentage of the total counts.
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MIX5-NEXT: 3 blocks with count >= 1000 account for 90 percentage of the total counts.
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MIX5-NEXT: 4 blocks with count >= 500 account for 95 percentage of the total counts.
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MIX5-NEXT: 4 blocks with count >= 500 account for 99 percentage of the total counts.
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MIX5-NEXT: 6 blocks with count >= 12 account for 99.9 percentage of the total counts.
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MIX5-NEXT: 6 blocks with count >= 12 account for 99.99 percentage of the total counts.
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MIX5-NEXT: 6 blocks with count >= 12 account for 99.999 percentage of the total counts.
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MIX5-NEXT: 6 blocks with count >= 12 account for 99.9999 percentage of the total counts.
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