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1## This script checks that YamlProfileReader in llvm-bolt is reading data2## correctly and stale data is corrected by profile inference.3 4REQUIRES: asserts5RUN: yaml2obj %p/Inputs/blarge.yaml &> %t.exe6RUN: llvm-bolt %t.exe -o %t.null --b %p/Inputs/blarge_profile_stale.yaml \7RUN: --infer-stale-profile=0 --profile-ignore-hash=1 --profile-use-dfs=0 \8RUN: 2>&1 | FileCheck %s -check-prefix=CHECK09## Testing "usqrt"10RUN: llvm-bolt %t.exe -o %t.null --b %p/Inputs/blarge_profile_stale.yaml \11RUN: --print-cfg --print-only=usqrt --infer-stale-profile=1 \12RUN: --profile-ignore-hash=1 --profile-use-dfs=0 --debug-only=bolt-prof 2>&1 | FileCheck %s -check-prefix=CHECK113## Testing "SolveCubic"14RUN: llvm-bolt %t.exe -o %t.null --b %p/Inputs/blarge_profile_stale.yaml \15RUN: --print-cfg --print-only=SolveCubic --infer-stale-profile=1 \16RUN: --profile-ignore-hash=1 --profile-use-dfs=0 --debug-only=bolt-prof 2>&1 | FileCheck %s -check-prefix=CHECK217## Testing skipped function18RUN: llvm-bolt %t.exe -o %t.null --b %p/Inputs/blarge_profile_stale.yaml \19RUN: --print-cfg --print-only=usqrt --infer-stale-profile=1 --skip-funcs=usqrt \20RUN: --profile-ignore-hash=1 --profile-use-dfs=021 22CHECK0: BOLT-INFO: 2 out of 7 functions in the binary (28.6%) have non-empty execution profile23CHECK0: BOLT-WARNING: 2 (100.0% of all profiled) functions have invalid (possibly stale) profile24CHECK0: BOLT-WARNING: 1192 out of 1192 samples in the binary (100.0%) belong to functions with invalid (possibly stale) profile25 26## Function "usqrt" has stale profile, since the number of blocks in the profile27## (nblocks=6) does not match the size of the CFG in the binary. The entry28## block (bid=0) has an incorrect (missing) count, which should be inferred by29## the algorithm.30 31## Verify inference details.32CHECK1: pre-processing profile using YAML profile reader33CHECK1: applying profile inference for "usqrt"34CHECK1: Matched yaml block (bid = 0) with hash 1111111111111111 to BB (index = 0) with hash 36007ba1d80c000035CHECK1-NEXT: loose match36CHECK1: Matched yaml block (bid = 1) with hash d70d7a64320e0010 to BB (index = 1) with hash d70d7a64320e001037CHECK1-NEXT: exact match38CHECK1: Matched yaml block (bid = 3) with hash 5c06705524800039 to BB (index = 3) with hash 5c0670552480003939CHECK1-NEXT: exact match40 41## Verify that yaml reader works as expected.42CHECK1: Binary Function "usqrt" after building cfg {43CHECK1: State : CFG constructed44CHECK1: Address : 0x40117045CHECK1: Size : 0x4346CHECK1: Section : .text47CHECK1: IsSimple : 148CHECK1: BB Count : 549CHECK1: Exec Count : 2050CHECK1: Sample Count: 64051CHECK1: }52 53## Verify block counts.54CHECK1: .LBB01 (4 instructions, align : 1)55CHECK1: Successors: .Ltmp[[#BB13:]] (mispreds: 0, count: 20)56CHECK1: .Ltmp[[#BB13:]] (9 instructions, align : 1)57CHECK1: Successors: .Ltmp[[#BB12:]] (mispreds: 0, count: 320), .LFT[[#BB0:]] (mispreds: 0, count: 0)58CHECK1: .LFT[[#BB0:]] (2 instructions, align : 1)59CHECK1: Successors: .Ltmp[[#BB12:]] (mispreds: 0, count: 0)60CHECK1: .Ltmp[[#BB12:]] (2 instructions, align : 1)61CHECK1: Successors: .Ltmp[[#BB13:]] (mispreds: 0, count: 300), .LFT[[#BB1:]] (mispreds: 0, count: 20)62CHECK1: .LFT[[#BB1:]] (2 instructions, align : 1)63## Check the overall inference stats.64CHECK1: 2 out of 7 functions in the binary (28.6%) have non-empty execution profile65CHECK1: BOLT-WARNING: 2 (100.0% of all profiled) functions have invalid (possibly stale) profile66CHECK1: BOLT-WARNING: 1192 out of 1192 samples in the binary (100.0%) belong to functions with invalid (possibly stale) profile67CHECK1: inferred profile for 2 (100.00% of profiled, 100.00% of stale) functions responsible for {{.*}} samples ({{.*}} out of {{.*}})68 69 70## Function "SolveCubic" has stale profile, since there is one jump in the71## profile (from bid=13 to bid=2) which is not in the CFG in the binary. The test72## verifies that the inference is able to match two blocks (bid=1 and bid=13)73## using "loose" hashes and then correctly propagate the counts.74 75## Verify inference details.76CHECK2: pre-processing profile using YAML profile reader77CHECK2: applying profile inference for "SolveCubic"78CHECK2: Matched yaml block (bid = 0) with hash 4600940a609c0000 to BB (index = 0) with hash 4600940a609c000079CHECK2-NEXT: exact match80CHECK2: Matched yaml block (bid = 13) with hash a8d50000f81902a7 to BB (index = 13) with hash a8d5aa43f81902a781CHECK2-NEXT: loose match82CHECK2: Matched yaml block (bid = 1) with hash 167a1f084f130088 to BB (index = 1) with hash 167a1f084f13008883CHECK2-NEXT: exact match84CHECK2: Matched yaml block (bid = 3) with hash c516000073dc00a0 to BB (index = 3) with hash c516b1c973dc00a085CHECK2-NEXT: loose match86CHECK2: Matched yaml block (bid = 5) with hash 6446e1ea500111 to BB (index = 5) with hash 6446e1ea50011187CHECK2-NEXT: exact match88 89## Verify that yaml reader works as expected.90CHECK2: Binary Function "SolveCubic" after building cfg {91CHECK2: State : CFG constructed92CHECK2: Address : 0x400e0093CHECK2: Size : 0x36894CHECK2: Section : .text95CHECK2: IsSimple : 196CHECK2: BB Count : 1897CHECK2: Exec Count : 15198CHECK2: Sample Count: 55299 100## Verify block counts.101CHECK2: .LBB00 (43 instructions, align : 1)102CHECK2: Successors: .Ltmp[[#BB7:]] (mispreds: 0, count: 0), .LFT[[#BB1:]] (mispreds: 0, count: 151)103CHECK2: .LFT[[#BB1:]] (5 instructions, align : 1)104CHECK2: Successors: .Ltmp[[#BB13:]] (mispreds: 0, count: 151), .LFT[[#BB2:]] (mispreds: 0, count: 0)105CHECK2: .Ltmp[[#BB3:]] (26 instructions, align : 1)106CHECK2: Successors: .Ltmp[[#BB5:]] (mispreds: 0, count: 151), .LFT[[#BB4:]] (mispreds: 0, count: 0)107CHECK2: .Ltmp[[#BB5:]] (9 instructions, align : 1)108CHECK2: .Ltmp[[#BB13:]] (12 instructions, align : 1)109CHECK2: Successors: .Ltmp[[#BB3:]] (mispreds: 0, count: 151)110CHECK2: 2 out of 7 functions in the binary (28.6%) have non-empty execution profile111