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      1 Tests for weighted merge of instrumented profiles.
      2 
      3 1- Merge the foo and bar profiles with unity weight and verify the combined output
      4 RUN: llvm-profdata merge -instr -weighted-input=1,%p/Inputs/weight-instr-bar.profdata -weighted-input=1,%p/Inputs/weight-instr-foo.profdata -o %t
      5 RUN: llvm-profdata show -instr -all-functions %t > %t.out1
      6 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-1 < %t.out1
      7 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-2 < %t.out1
      8 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-3 < %t.out1
      9 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-4 < %t.out1
     10 RUN: llvm-profdata merge -instr -weighted-input=1,%p/Inputs/weight-instr-bar.profdata %p/Inputs/weight-instr-foo.profdata -o %t
     11 RUN: llvm-profdata show -instr -all-functions %t > %t.out2
     12 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-1 < %t.out2
     13 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-2 < %t.out2
     14 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-3 < %t.out2
     15 RUN: FileCheck %s -check-prefix=1X_1X_WEIGHT --check-prefix=1X_1X_WEIGHT-4 < %t.out2
     16 1X_1X_WEIGHT: Counters:
     17 1X_1X_WEIGHT-1:   usage:
     18 1X_1X_WEIGHT-1:     Hash: 0x0000000000000000
     19 1X_1X_WEIGHT-1:     Counters: 1
     20 1X_1X_WEIGHT-1:     Function count: 0
     21 1X_1X_WEIGHT-2:   foo:
     22 1X_1X_WEIGHT-2:     Hash: 0x000000000000028a
     23 1X_1X_WEIGHT-2:     Counters: 3
     24 1X_1X_WEIGHT-2:     Function count: 866988873
     25 1X_1X_WEIGHT-3:   bar:
     26 1X_1X_WEIGHT-3:     Hash: 0x000000000000028a
     27 1X_1X_WEIGHT-3:     Counters: 3
     28 1X_1X_WEIGHT-3:     Function count: 866988873
     29 1X_1X_WEIGHT-4:   main:
     30 1X_1X_WEIGHT-4:     Hash: 0x7d31c47ea98f8248
     31 1X_1X_WEIGHT-4:     Counters: 60
     32 1X_1X_WEIGHT-4:     Function count: 2
     33 1X_1X_WEIGHT:      Functions shown: 4
     34 1X_1X_WEIGHT-NEXT: Total functions: 4
     35 1X_1X_WEIGHT-NEXT: Maximum function count: 866988873
     36 1X_1X_WEIGHT-NEXT: Maximum internal block count: 267914296
     37 
     38 2- Merge the foo and bar profiles with weight 3x and 5x respectively and verify the combined output
     39 RUN: llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=5,%p/Inputs/weight-instr-foo.profdata -o %t
     40 RUN: llvm-profdata show -instr -all-functions %t > %t.out3
     41 RUN: FileCheck %s -check-prefix=3X_5X_WEIGHT --check-prefix=3X_5X_WEIGHT-1 < %t.out3
     42 RUN: FileCheck %s -check-prefix=3X_5X_WEIGHT --check-prefix=3X_5X_WEIGHT-2 < %t.out3
     43 RUN: FileCheck %s -check-prefix=3X_5X_WEIGHT --check-prefix=3X_5X_WEIGHT-3 < %t.out3
     44 RUN: FileCheck %s -check-prefix=3X_5X_WEIGHT --check-prefix=3X_5X_WEIGHT-4 < %t.out3
     45 3X_5X_WEIGHT: Counters:
     46 3X_5X_WEIGHT-1:   usage:
     47 3X_5X_WEIGHT-1:     Hash: 0x0000000000000000
     48 3X_5X_WEIGHT-1:     Counters: 1
     49 3X_5X_WEIGHT-1:     Function count: 0
     50 3X_5X_WEIGHT-2:   foo:
     51 3X_5X_WEIGHT-2:     Hash: 0x000000000000028a
     52 3X_5X_WEIGHT-2:     Counters: 3
     53 3X_5X_WEIGHT-2:     Function count: 4334944365
     54 3X_5X_WEIGHT-3:   bar:
     55 3X_5X_WEIGHT-3:     Hash: 0x000000000000028a
     56 3X_5X_WEIGHT-3:     Counters: 3
     57 3X_5X_WEIGHT-3:     Function count: 2600966619
     58 3X_5X_WEIGHT-4:   main:
     59 3X_5X_WEIGHT-4:     Hash: 0x7d31c47ea98f8248
     60 3X_5X_WEIGHT-4:     Counters: 60
     61 3X_5X_WEIGHT-4:     Function count: 8
     62 3X_5X_WEIGHT:      Functions shown: 4
     63 3X_5X_WEIGHT-NEXT: Total functions: 4
     64 3X_5X_WEIGHT-NEXT: Maximum function count: 4334944365
     65 3X_5X_WEIGHT-NEXT: Maximum internal block count: 1339571480
     66 
     67 3- Bad merge: invalid weight
     68 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=0,%p/Inputs/weight-instr-foo.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_WEIGHT
     69 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=0.75,%p/Inputs/weight-instr-foo.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_WEIGHT
     70 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=-5,%p/Inputs/weight-instr-foo.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_WEIGHT
     71 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=,%p/Inputs/weight-instr-foo.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_WEIGHT
     72 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/weight-instr-bar.profdata -weighted-input=%p/Inputs/weight-instr-foo.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_WEIGHT
     73 INVALID_WEIGHT: error: Input weight must be a positive integer.
     74 
     75 4- Bad merge: input path does not exist
     76 RUN: not llvm-profdata merge -instr -weighted-input=3,%p/Inputs/does-not-exist.profdata -weighted-input=2,%p/Inputs/does-not-exist-either.profdata -o %t.out 2>&1 | FileCheck %s -check-prefix=INVALID_INPUT
     77 INVALID_INPUT: {{.*}}: {{.*}}does-not-exist.profdata: {{[Nn]}}o such file or directory
     78 
     79 5- No inputs
     80 RUN: not llvm-profdata merge -instr -o %t.out 2>&1 | FileCheck %s -check-prefix=NO_INPUT
     81 NO_INPUT: {{.*}}: No input files specified. See llvm-profdata{{(\.EXE|\.exe)?}} merge -help
     82