[llvm-profdata] Add support for weighted merge of profile data (2nd try)

[oota-llvm.git] / test / tools / llvm-profdata / weight-instr.test

diff --git a/test/tools/llvm-profdata/weight-instr.test b/test/tools/llvm-profdata/weight-instr.test
new file mode 100644 (file)
index 0000000..7294cf3
--- /dev/null
+++ b/test/tools/llvm-profdata/weight-instr.test
@@ -0,0 +1,69 @@
+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