Tests for weighted merge of instrumented profiles. 1- Merge the foo and bar profiles with unity weight and verify the combined output 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 RUN: llvm-profdata show -instr -all-functions %t | FileCheck %s -check-prefix=1X_1X_WEIGHT RUN: llvm-profdata merge -instr -weighted-input=1,%p/Inputs/weight-instr-bar.profdata %p/Inputs/weight-instr-foo.profdata -o %t RUN: llvm-profdata show -instr -all-functions %t | FileCheck %s -check-prefix=1X_1X_WEIGHT 1X_1X_WEIGHT: Counters: 1X_1X_WEIGHT-NEXT: usage: 1X_1X_WEIGHT-NEXT: Hash: 0x0000000000000000 1X_1X_WEIGHT-NEXT: Counters: 1 1X_1X_WEIGHT-NEXT: Function count: 0 1X_1X_WEIGHT-NEXT: foo: 1X_1X_WEIGHT-NEXT: Hash: 0x000000000000028a 1X_1X_WEIGHT-NEXT: Counters: 3 1X_1X_WEIGHT-NEXT: Function count: 866988873 1X_1X_WEIGHT-NEXT: bar: 1X_1X_WEIGHT-NEXT: Hash: 0x000000000000028a 1X_1X_WEIGHT-NEXT: Counters: 3 1X_1X_WEIGHT-NEXT: Function count: 866988873 1X_1X_WEIGHT-NEXT: main: 1X_1X_WEIGHT-NEXT: Hash: 0x7d31c47ea98f8248 1X_1X_WEIGHT-NEXT: Counters: 60 1X_1X_WEIGHT-NEXT: Function count: 2 1X_1X_WEIGHT-NEXT: Functions shown: 4 1X_1X_WEIGHT-NEXT: Total functions: 4 1X_1X_WEIGHT-NEXT: Maximum function count: 866988873 1X_1X_WEIGHT-NEXT: Maximum internal block count: 267914296 2- Merge the foo and bar profiles with weight 3x and 5x respectively and verify the combined output 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 RUN: llvm-profdata show -instr -all-functions %t | FileCheck %s -check-prefix=3X_5X_WEIGHT 3X_5X_WEIGHT: Counters: 3X_5X_WEIGHT-NEXT: usage: 3X_5X_WEIGHT-NEXT: Hash: 0x0000000000000000 3X_5X_WEIGHT-NEXT: Counters: 1 3X_5X_WEIGHT-NEXT: Function count: 0 3X_5X_WEIGHT-NEXT: foo: 3X_5X_WEIGHT-NEXT: Hash: 0x000000000000028a 3X_5X_WEIGHT-NEXT: Counters: 3 3X_5X_WEIGHT-NEXT: Function count: 4334944365 3X_5X_WEIGHT-NEXT: bar: 3X_5X_WEIGHT-NEXT: Hash: 0x000000000000028a 3X_5X_WEIGHT-NEXT: Counters: 3 3X_5X_WEIGHT-NEXT: Function count: 2600966619 3X_5X_WEIGHT-NEXT: main: 3X_5X_WEIGHT-NEXT: Hash: 0x7d31c47ea98f8248 3X_5X_WEIGHT-NEXT: Counters: 60 3X_5X_WEIGHT-NEXT: Function count: 8 3X_5X_WEIGHT-NEXT: Functions shown: 4 3X_5X_WEIGHT-NEXT: Total functions: 4 3X_5X_WEIGHT-NEXT: Maximum function count: 4334944365 3X_5X_WEIGHT-NEXT: Maximum internal block count: 1339571480 3- Bad merge: invalid weight 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 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 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 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 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 INVALID_WEIGHT: error: Input weight must be a positive integer. 4- Bad merge: input path does not exist 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 INVALID_INPUT: {{.*}}: {{.*}}does-not-exist.profdata: {{[Nn]}}o such file or directory 5- No inputs RUN: not llvm-profdata merge -instr -o %t.out 2>&1 | FileCheck %s -check-prefix=NO_INPUT NO_INPUT: {{.*}}: No input files specified. See llvm-profdata{{(\.EXE|\.exe)?}} merge -help